Merge pull request #27 from exstake/add-stake-order-creation

Add stake order creation
2021-08-17 20:29:45 -03:00
parent 17d502430f 35fcdeb0f8
commit f8cd635b8b
28 changed files with 1003 additions and 185 deletions
--- a/app/graphql/inputs/create_stake_order_attributes_input.rb
+++ b/app/graphql/inputs/create_stake_order_attributes_input.rb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+module Inputs
+  class CreateStakeOrderAttributesInput < Types::BaseInputObject
+    argument :currency_id, ID, required: true
+    argument :pool_name, String, required: true
+    argument :amount, String, "Amount to be paid", required: true
+  end
+end
--- a/app/graphql/mutations/create_stake_order.rb
+++ b/app/graphql/mutations/create_stake_order.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+module Mutations
+  class CreateStakeOrder < BaseMutation
+    field :order, Types::StakeOrderType, null: true
+
+    argument :order, Inputs::CreateStakeOrderAttributesInput, required: true
+
+    def resolve(order:)
+      currency_id = decode_id(order[:currency_id])
+      amount = BigDecimal(order[:amount])
+
+      ActiveRecord::Base.transaction do
+        current_user
+          .balances
+          .find_by!(currency_id: currency_id)
+          .withdrawal!(amount)
+
+        record = StakeOrder.create!(
+          amount: amount,
+          currency_id: currency_id,
+          pool_name: order[:pool_name],
+          user_id: current_user.id,
+        )
+
+        { order: record }
+      rescue ActiveRecord::RecordInvalid => e
+        { errors: Resolvers::ModelErrors.from_active_record_model(e.record) }
+      end
+    end
+  end
+end
--- a/app/graphql/types/mutation_type.rb
+++ b/app/graphql/types/mutation_type.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 module Types
  class MutationType < Types::BaseObject
+    field :create_stake_order, mutation: Mutations::CreateStakeOrder
    field :create_sell_crypto_order, mutation: Mutations::CreateSellCryptoOrder
    field :create_buy_crypto_order, mutation: Mutations::CreateBuyCryptoOrder
  end
--- a/app/javascript/generated/schema.graphql
+++ b/app/javascript/generated/schema.graphql
@@ -144,6 +144,42 @@ type CreateSellCryptoOrderPayload {
  order: SellCryptoOrder
 }

+input CreateStakeOrderAttributesInput {
+  """
+  Amount to be paid
+  """
+  amount: String!
+  currencyId: ID!
+  poolName: String!
+}
+
+"""
+Autogenerated input type of CreateStakeOrder
+"""
+input CreateStakeOrderInput {
+  """
+  A unique identifier for the client performing the mutation.
+  """
+  clientMutationId: String
+  order: CreateStakeOrderAttributesInput!
+}
+
+"""
+Autogenerated return type of CreateStakeOrder
+"""
+type CreateStakeOrderPayload {
+  """
+  A unique identifier for the client performing the mutation.
+  """
+  clientMutationId: String
+
+  """
+  Errors encountered during execution of the mutation.
+  """
+  errors: [RecordInvalid!]
+  order: StakeOrder
+}
+
 type Currency implements Node {
  id: ID!
  name: String!
@@ -203,6 +239,12 @@ type Mutation {
    """
    input: CreateSellCryptoOrderInput!
  ): CreateSellCryptoOrderPayload
+  createStakeOrder(
+    """
+    Parameters for CreateStakeOrder
+    """
+    input: CreateStakeOrderInput!
+  ): CreateStakeOrderPayload
 }

 """
--- a/app/javascript/src/components/Modal/Modal.tsx
+++ b/app/javascript/src/components/Modal/Modal.tsx
@@ -0,0 +1,73 @@
+import type { FC } from "react";
+import React, { Fragment } from "react";
+import { Dialog, Transition } from "@headlessui/react";
+
+type Props = {
+  isOpen: boolean;
+  setIsOpen: (state: boolean) => void;
+  title: string;
+  className?: string;
+};
+
+export const Modal: FC<Props> = ({
+  isOpen,
+  setIsOpen,
+  children,
+  title,
+  className = "",
+}) => {
+  const closeModal = () => {
+    setIsOpen(false);
+  };
+
+  return (
+    <Transition appear show={isOpen} as={Fragment}>
+      <Dialog
+        open={isOpen}
+        as="div"
+        className={`fixed inset-0 z-10 overflow-y-auto ${className}`}
+        onClose={closeModal}
+      >
+        <div className="min-h-screen px-4 text-center">
+          <Transition.Child
+            as={Fragment}
+            enter="ease-out duration-300"
+            enterFrom="opacity-0"
+            enterTo="opacity-100"
+            leave="ease-in duration-200"
+            leaveFrom="opacity-100"
+            leaveTo="opacity-0"
+          >
+            <Dialog.Overlay className="fixed inset-0 bg-gray-900 bg-opacity-50" />
+          </Transition.Child>
+
+          <span
+            className="inline-block h-screen align-middle"
+            aria-hidden="true"
+          >
+            &#8203;
+          </span>
+          <Transition.Child
+            as={Fragment}
+            enter="ease-out duration-300"
+            enterFrom="opacity-0 scale-95"
+            enterTo="opacity-100 scale-100"
+            leave="ease-in duration-200"
+            leaveFrom="opacity-100 scale-100"
+            leaveTo="opacity-0 scale-95"
+          >
+            <div className="inline-block w-full max-w-md p-6 my-8 overflow-hidden text-left align-middle transition-all transform bg-white shadow-xl rounded">
+              <Dialog.Title
+                as="h3"
+                className="text-lg font-medium leading-6 text-gray-900 mb-4"
+              >
+                {title}
+              </Dialog.Title>
+              <div className="mt-2">{children}</div>
+            </div>
+          </Transition.Child>
+        </div>
+      </Dialog>
+    </Transition>
+  );
+};
--- a/app/javascript/src/components/Modal/index.ts
+++ b/app/javascript/src/components/Modal/index.ts
@@ -0,0 +1 @@
+export * from "./Modal";
--- a/app/javascript/src/components/PoolListing.tsx
+++ b/app/javascript/src/components/PoolListing.tsx
@@ -1,17 +0,0 @@
-import React from "react";
-
-import { pools } from "../constants/Pools";
-import { Pool } from "./Pool";
-
-export const PoolListing = () => {
-  return (
-    <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 place-items-center w-full gap-8 py-4 -mt-16 overflow-x-hidden">
-      {pools
-        .filter((pool) => !pool.isFinished)
-        .sort((a, b) => (a.sortOrder ?? 0) - (b.sortOrder ?? 0))
-        .map((pool) => (
-          <Pool key={pool.sousId} pool={pool} />
-        ))}
-    </div>
-  );
-};
--- a/app/javascript/src/components/SideNav/SideNav.tsx
+++ b/app/javascript/src/components/SideNav/SideNav.tsx
@@ -2,7 +2,7 @@ import * as React from "react";
 import { Link } from "react-router-dom";
 import { Transition } from "@headlessui/react";

-import { useApp } from "../contexts/AppProvider";
+import { useApp } from "../../contexts/AppProvider";

 type MenuItem = {
  label: string;
--- a/app/javascript/src/components/SideNav/index.ts
+++ b/app/javascript/src/components/SideNav/index.ts
@@ -0,0 +1 @@
+export * from "./SideNav";
--- a/app/javascript/src/components/index.ts
+++ b/app/javascript/src/components/index.ts
@@ -1,2 +1,3 @@
 export * from "./Navbar";
 export * from "./SideNav";
+export * from "./Modal";
--- a/app/javascript/src/pages/Home/Container.tsx
+++ b/app/javascript/src/pages/Home/Container.tsx
--- a/app/javascript/src/pages/Home/Header.tsx
+++ b/app/javascript/src/pages/Home/Header.tsx
--- a/app/javascript/src/pages/Home/Home.tsx
+++ b/app/javascript/src/pages/Home/Home.tsx
@@ -1,9 +1,9 @@
 import type { FC } from "react";
 import React from "react";

-import { Container } from "../../components/Container";
-import { Header } from "../../components/Header";
-import { PoolListing } from "../../components/PoolListing";
+import { Container } from "./Container";
+import { Header } from "./Header";
+import { PoolListing } from "./PoolListing";

 export const Home: FC = () => {
  return (
--- a/app/javascript/src/pages/Home/Pool.tsx
+++ b/app/javascript/src/pages/Home/Pool.tsx
@@ -1,16 +1,20 @@
+import type { FC } from "react";
 import React from "react";

-import type { PoolConfig } from "../types";
-import { useBsc } from "../contexts/BscProvider";
-import { getPriceInBusd } from "../utils/getPrice";
-import { getApr } from "../utils/apr";
-import { getTotalStaked } from "../utils/getTotalStaked";
+import type { PoolConfig } from "../../types";
+import { useBsc } from "../../contexts/BscProvider";
+import { getApr } from "../../utils/apr";
+import { getPriceInBusd } from "../../utils/getPrice";
+import { getTotalStaked } from "../../utils/getTotalStaked";
+import { StakeOrderModal } from "./StakeOrderModal";

 type PoolProps = {
  pool: PoolConfig;
+  balance: string;
+  currencyId: string;
 };

-export const Pool = ({ pool }: PoolProps) => {
+export const Pool: FC<PoolProps> = ({ pool, balance, currencyId }) => {
  const {
    provider,
    pancake: { router },
@@ -77,12 +81,7 @@ export const Pool = ({ pool }: PoolProps) => {
      />
      <div className="mt-4 p-2">
        <p>
-          <span className="font-medium">Investir:</span>{" "}
-          {pool.stakingToken.symbol}
-        </p>
-        <p>
-          <span className="font-medium">Receber:</span>{" "}
-          {pool.earningToken.symbol}
+          <span className="font-medium">Pool:</span> {pool.earningToken.symbol}
        </p>
        <div className="flex items-center">
          <span className="font-medium mr-1">Rendimento:</span>
@@ -92,6 +91,11 @@ export const Pool = ({ pool }: PoolProps) => {
            `${apr.value}%`
          )}
        </div>
+        <StakeOrderModal
+          poolName={pool.earningToken.symbol}
+          balance={balance}
+          currencyId={currencyId}
+        />
      </div>
    </div>
  );
--- a/app/javascript/src/pages/Home/PoolListing.tsx
+++ b/app/javascript/src/pages/Home/PoolListing.tsx
@@ -0,0 +1,51 @@
+import { graphql } from "babel-plugin-relay/macro";
+import React from "react";
+import { useLazyLoadQuery } from "react-relay";
+
+import { pools } from "../../constants/Pools";
+import { Pool } from "./Pool";
+import type { PoolListingQuery } from "./__generated__/PoolListingQuery.graphql";
+
+export const PoolListing = () => {
+  const { balances } = useLazyLoadQuery<PoolListingQuery>(
+    graphql`
+      query PoolListingQuery {
+        balances {
+          edges {
+            node {
+              currency {
+                id
+                name
+              }
+              amount
+            }
+          }
+        }
+      }
+    `,
+    {}
+  );
+
+  const cakeBalance = balances.edges.find(
+    (edge) => edge.node.currency.name === "CAKE"
+  )?.node;
+
+  const balance = cakeBalance?.amount ?? "0";
+  const currencyId = cakeBalance?.currency.id ?? "????";
+
+  return (
+    <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 place-items-center w-full gap-8 py-4 -mt-16 overflow-x-hidden">
+      {pools
+        .filter((pool) => !pool.isFinished)
+        .sort((a, b) => (a.sortOrder ?? 0) - (b.sortOrder ?? 0))
+        .map((pool) => (
+          <Pool
+            key={pool.sousId}
+            pool={pool}
+            balance={balance}
+            currencyId={currencyId}
+          />
+        ))}
+    </div>
+  );
+};
--- a/app/javascript/src/pages/Home/StakeOrderModal/StakeOrderModal.tsx
+++ b/app/javascript/src/pages/Home/StakeOrderModal/StakeOrderModal.tsx
@@ -0,0 +1,110 @@
+import type { ChangeEvent, FC } from "react";
+import React, { useState } from "react";
+import cx from "classnames";
+import { BigNumber } from "bignumber.js";
+import { useRelayEnvironment } from "react-relay";
+
+import { Modal } from "../../../components";
+import { commitCreateStakeOrderMutation } from "./createStakeOrder";
+
+type Props = {
+  poolName: string;
+  balance: string;
+  currencyId: string;
+};
+
+const inputBaseStyles =
+  "rounded-lg border-transparent flex-1 appearance-none border border-gray-300 w-full py-2 px-4 bg-white text-gray-700 placeholder-gray-400 shadow-sm text-base focus:outline-none focus:ring-2 focus:ring-blue-600 focus:border-transparent mb-3";
+
+export const StakeOrderModal: FC<Props> = ({
+  poolName,
+  balance,
+  currencyId,
+}) => {
+  const environment = useRelayEnvironment();
+  const [isOpen, setIsOpen] = useState(false);
+  const [investAmountInput, setInvestAmountInput] = useState("0");
+
+  const avaliableCake = new BigNumber(balance);
+  const investAmount = new BigNumber(investAmountInput);
+
+  const handleButtonClick = () => {
+    setIsOpen((prevState) => !prevState);
+  };
+
+  const onSubmit = () => {
+    commitCreateStakeOrderMutation(environment, {
+      currencyId,
+      amount: investAmountInput,
+      poolName,
+    });
+  };
+
+  const handleInvestInput = ({
+    currentTarget: { value },
+  }: ChangeEvent<HTMLInputElement>) => {
+    const newInvestAmount = new BigNumber(value);
+
+    if (
+      newInvestAmount.isLessThanOrEqualTo(avaliableCake) &&
+      newInvestAmount.isGreaterThanOrEqualTo(0)
+    ) {
+      setInvestAmountInput(value);
+    }
+  };
+
+  const handleMaxButton = () => {
+    setInvestAmountInput(balance);
+  };
+
+  const stakeAvaliable =
+    avaliableCake.isGreaterThan(0) &&
+    avaliableCake.isLessThanOrEqualTo(investAmount);
+
+  return (
+    <div className="mt-4">
+      <button
+        onClick={handleButtonClick}
+        type="button"
+        className="py-2 px-4 text-blue-600 border-2 border-blue-600 hover:bg-blue-100 w-full transition ease-in duration-200 text-center text-base font-semibold shadow-md rounded-lg "
+      >
+        Stake
+      </button>
+      <Modal
+        isOpen={isOpen}
+        setIsOpen={setIsOpen}
+        title={`Invista em ${poolName}`}
+      >
+        <span className="mb-2">CAKE disponível: {balance}</span>
+        <form onSubmit={onSubmit} className="bg-white py-2">
+          <div className="flex flex-row">
+            <input
+              className={cx(inputBaseStyles)}
+              type="number"
+              value={investAmountInput}
+              onChange={handleInvestInput}
+            />
+            <button
+              type="button"
+              disabled={investAmountInput === balance}
+              className="flex items-center mb-3 ml-3 font-bold rounded-full text-red-500"
+              onClick={handleMaxButton}
+            >
+              Max
+            </button>
+          </div>
+          {avaliableCake.isEqualTo(0) && (
+            <span className="text-red-500 mb-1">Você não possuí saldo.</span>
+          )}
+          <button
+            className="cursor-pointer py-2 px-4 disabled:opacity-50 disabled:cursor-default bg-blue-600 hover:bg-blue-700 focus:ring-blue-500 focus:ring-offset-blue-200 text-white w-full transition ease-in duration-200 text-center text-base font-semibold shadow-md focus:outline-none focus:ring-2 focus:ring-offset-2 rounded-lg"
+            disabled={!stakeAvaliable}
+            type="submit"
+          >
+            Fazer Stake
+          </button>
+        </form>
+      </Modal>
+    </div>
+  );
+};
--- a/app/javascript/src/pages/Home/StakeOrderModal/generated/createStakeOrderMutation.graphql.ts
+++ b/app/javascript/src/pages/Home/StakeOrderModal/generated/createStakeOrderMutation.graphql.ts
@@ -0,0 +1,150 @@
+/* tslint:disable */
+/* eslint-disable */
+// @ts-nocheck
+
+import { ConcreteRequest } from "relay-runtime";
+export type createStakeOrderMutationVariables = {
+    currencyId: string;
+    poolName: string;
+    amount: string;
+};
+export type createStakeOrderMutationResponse = {
+    readonly createStakeOrder: {
+        readonly order: {
+            readonly id: string;
+        } | null;
+    } | null;
+};
+export type createStakeOrderMutation = {
+    readonly response: createStakeOrderMutationResponse;
+    readonly variables: createStakeOrderMutationVariables;
+};
+
+
+
+/*
+mutation createStakeOrderMutation(
+  $currencyId: ID!
+  $poolName: String!
+  $amount: String!
+) {
+  createStakeOrder(input: {order: {currencyId: $currencyId, poolName: $poolName, amount: $amount}}) {
+    order {
+      id
+    }
+  }
+}
+*/
+
+const node: ConcreteRequest = (function(){
+var v0 = {
+  "defaultValue": null,
+  "kind": "LocalArgument",
+  "name": "amount"
+},
+v1 = {
+  "defaultValue": null,
+  "kind": "LocalArgument",
+  "name": "currencyId"
+},
+v2 = {
+  "defaultValue": null,
+  "kind": "LocalArgument",
+  "name": "poolName"
+},
+v3 = [
+  {
+    "alias": null,
+    "args": [
+      {
+        "fields": [
+          {
+            "fields": [
+              {
+                "kind": "Variable",
+                "name": "amount",
+                "variableName": "amount"
+              },
+              {
+                "kind": "Variable",
+                "name": "currencyId",
+                "variableName": "currencyId"
+              },
+              {
+                "kind": "Variable",
+                "name": "poolName",
+                "variableName": "poolName"
+              }
+            ],
+            "kind": "ObjectValue",
+            "name": "order"
+          }
+        ],
+        "kind": "ObjectValue",
+        "name": "input"
+      }
+    ],
+    "concreteType": "CreateStakeOrderPayload",
+    "kind": "LinkedField",
+    "name": "createStakeOrder",
+    "plural": false,
+    "selections": [
+      {
+        "alias": null,
+        "args": null,
+        "concreteType": "StakeOrder",
+        "kind": "LinkedField",
+        "name": "order",
+        "plural": false,
+        "selections": [
+          {
+            "alias": null,
+            "args": null,
+            "kind": "ScalarField",
+            "name": "id",
+            "storageKey": null
+          }
+        ],
+        "storageKey": null
+      }
+    ],
+    "storageKey": null
+  }
+];
+return {
+  "fragment": {
+    "argumentDefinitions": [
+      (v0/*: any*/),
+      (v1/*: any*/),
+      (v2/*: any*/)
+    ],
+    "kind": "Fragment",
+    "metadata": null,
+    "name": "createStakeOrderMutation",
+    "selections": (v3/*: any*/),
+    "type": "Mutation",
+    "abstractKey": null
+  },
+  "kind": "Request",
+  "operation": {
+    "argumentDefinitions": [
+      (v1/*: any*/),
+      (v2/*: any*/),
+      (v0/*: any*/)
+    ],
+    "kind": "Operation",
+    "name": "createStakeOrderMutation",
+    "selections": (v3/*: any*/)
+  },
+  "params": {
+    "cacheID": "bfe4935c593947810fbb8d7a52421483",
+    "id": null,
+    "metadata": {},
+    "name": "createStakeOrderMutation",
+    "operationKind": "mutation",
+    "text": "mutation createStakeOrderMutation(\n  $currencyId: ID!\n  $poolName: String!\n  $amount: String!\n) {\n  createStakeOrder(input: {order: {currencyId: $currencyId, poolName: $poolName, amount: $amount}}) {\n    order {\n      id\n    }\n  }\n}\n"
+  }
+};
+})();
+(node as any).hash = '036f321e28fcb4bd3e274498cd3f116a';
+export default node;
--- a/app/javascript/src/pages/Home/StakeOrderModal/createStakeOrder.tsx
+++ b/app/javascript/src/pages/Home/StakeOrderModal/createStakeOrder.tsx
@@ -0,0 +1,39 @@
+import { graphql } from "babel-plugin-relay/macro";
+import type { Environment } from "react-relay";
+import { commitMutation } from "react-relay";
+
+import type { createStakeOrderMutationVariables } from "./__generated__/createStakeOrderMutation.graphql";
+
+export const commitCreateStakeOrderMutation = (
+  environment: Environment,
+  variables: createStakeOrderMutationVariables
+) => {
+  return commitMutation(environment, {
+    mutation: graphql`
+      mutation createStakeOrderMutation(
+        $currencyId: ID!
+        $poolName: String!
+        $amount: String!
+      ) {
+        createStakeOrder(
+          input: {
+            order: {
+              currencyId: $currencyId
+              poolName: $poolName
+              amount: $amount
+            }
+          }
+        ) {
+          order {
+            id
+          }
+        }
+      }
+    `,
+    variables: { ...variables },
+    onCompleted: (_response) => {
+      window.location.reload();
+    },
+    onError: (_error) => {},
+  });
+};
--- a/app/javascript/src/pages/Home/StakeOrderModal/index.ts
+++ b/app/javascript/src/pages/Home/StakeOrderModal/index.ts
@@ -0,0 +1 @@
+export * from "./StakeOrderModal";
--- a/app/javascript/src/pages/Home/generated/PoolListingQuery.graphql.ts
+++ b/app/javascript/src/pages/Home/generated/PoolListingQuery.graphql.ts
@@ -0,0 +1,179 @@
+/* tslint:disable */
+/* eslint-disable */
+// @ts-nocheck
+
+import { ConcreteRequest } from "relay-runtime";
+export type PoolListingQueryVariables = {};
+export type PoolListingQueryResponse = {
+    readonly balances: {
+        readonly edges: ReadonlyArray<{
+            readonly node: {
+                readonly currency: {
+                    readonly id: string;
+                    readonly name: string;
+                };
+                readonly amount: string;
+            };
+        }>;
+    };
+};
+export type PoolListingQuery = {
+    readonly response: PoolListingQueryResponse;
+    readonly variables: PoolListingQueryVariables;
+};
+
+
+
+/*
+query PoolListingQuery {
+  balances {
+    edges {
+      node {
+        currency {
+          id
+          name
+        }
+        amount
+        id
+      }
+    }
+  }
+}
+*/
+
+const node: ConcreteRequest = (function(){
+var v0 = {
+  "alias": null,
+  "args": null,
+  "kind": "ScalarField",
+  "name": "id",
+  "storageKey": null
+},
+v1 = {
+  "alias": null,
+  "args": null,
+  "concreteType": "Currency",
+  "kind": "LinkedField",
+  "name": "currency",
+  "plural": false,
+  "selections": [
+    (v0/*: any*/),
+    {
+      "alias": null,
+      "args": null,
+      "kind": "ScalarField",
+      "name": "name",
+      "storageKey": null
+    }
+  ],
+  "storageKey": null
+},
+v2 = {
+  "alias": null,
+  "args": null,
+  "kind": "ScalarField",
+  "name": "amount",
+  "storageKey": null
+};
+return {
+  "fragment": {
+    "argumentDefinitions": [],
+    "kind": "Fragment",
+    "metadata": null,
+    "name": "PoolListingQuery",
+    "selections": [
+      {
+        "alias": null,
+        "args": null,
+        "concreteType": "BalanceConnection",
+        "kind": "LinkedField",
+        "name": "balances",
+        "plural": false,
+        "selections": [
+          {
+            "alias": null,
+            "args": null,
+            "concreteType": "BalanceEdge",
+            "kind": "LinkedField",
+            "name": "edges",
+            "plural": true,
+            "selections": [
+              {
+                "alias": null,
+                "args": null,
+                "concreteType": "Balance",
+                "kind": "LinkedField",
+                "name": "node",
+                "plural": false,
+                "selections": [
+                  (v1/*: any*/),
+                  (v2/*: any*/)
+                ],
+                "storageKey": null
+              }
+            ],
+            "storageKey": null
+          }
+        ],
+        "storageKey": null
+      }
+    ],
+    "type": "Query",
+    "abstractKey": null
+  },
+  "kind": "Request",
+  "operation": {
+    "argumentDefinitions": [],
+    "kind": "Operation",
+    "name": "PoolListingQuery",
+    "selections": [
+      {
+        "alias": null,
+        "args": null,
+        "concreteType": "BalanceConnection",
+        "kind": "LinkedField",
+        "name": "balances",
+        "plural": false,
+        "selections": [
+          {
+            "alias": null,
+            "args": null,
+            "concreteType": "BalanceEdge",
+            "kind": "LinkedField",
+            "name": "edges",
+            "plural": true,
+            "selections": [
+              {
+                "alias": null,
+                "args": null,
+                "concreteType": "Balance",
+                "kind": "LinkedField",
+                "name": "node",
+                "plural": false,
+                "selections": [
+                  (v1/*: any*/),
+                  (v2/*: any*/),
+                  (v0/*: any*/)
+                ],
+                "storageKey": null
+              }
+            ],
+            "storageKey": null
+          }
+        ],
+        "storageKey": null
+      }
+    ]
+  },
+  "params": {
+    "cacheID": "06c9467183eb0e89329ec630a8cc4880",
+    "id": null,
+    "metadata": {},
+    "name": "PoolListingQuery",
+    "operationKind": "query",
+    "text": "query PoolListingQuery {\n  balances {\n    edges {\n      node {\n        currency {\n          id\n          name\n        }\n        amount\n        id\n      }\n    }\n  }\n}\n"
+  }
+};
+})();
+(node as any).hash = '570efc1d3b5dac09303b8692d6830bb2';
+export default node;
--- a/app/models/stake_order.rb
+++ b/app/models/stake_order.rb
@@ -4,26 +4,30 @@
 #
 # Table name: stake_orders
 #
-#  id         :bigint           not null, primary key
-#  amount     :decimal(20, 10)  default(0.0), not null
-#  pool_name  :string           not null
-#  status     :string           not null
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#  user_id    :bigint           not null
+#  id          :bigint           not null, primary key
+#  amount      :decimal(20, 10)  default(0.0), not null
+#  pool_name   :string           not null
+#  status      :string           not null
+#  created_at  :datetime         not null
+#  updated_at  :datetime         not null
+#  currency_id :bigint
+#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_stake_orders_on_user_id  (user_id)
+#  index_stake_orders_on_currency_id  (currency_id)
+#  index_stake_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
+#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 class StakeOrder < ApplicationRecord
  include Processable

  belongs_to :user
+  belongs_to :currency

  validates :pool_name, presence: true
  validates :amount, presence: true
--- a/db/migrate/20210816174637_add_currency_to_stake_order.rb
+++ b/db/migrate/20210816174637_add_currency_to_stake_order.rb
@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+class AddCurrencyToStakeOrder < ActiveRecord::Migration[6.1]
+  def change
+    add_reference(:stake_orders, :currency, foreign_key: true)
+  end
+end
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.

-ActiveRecord::Schema.define(version: 2021_08_16_032056) do
+ActiveRecord::Schema.define(version: 2021_08_16_174637) do

  # These are extensions that must be enabled in order to support this database
  enable_extension "plpgsql"
@@ -111,6 +111,8 @@ ActiveRecord::Schema.define(version: 2021_08_16_032056) do
    t.decimal "amount", precision: 20, scale: 10, default: "0.0", null: false
    t.datetime "created_at", precision: 6, null: false
    t.datetime "updated_at", precision: 6, null: false
+    t.bigint "currency_id"
+    t.index ["currency_id"], name: "index_stake_orders_on_currency_id"
    t.index ["user_id"], name: "index_stake_orders_on_user_id"
  end

@@ -145,6 +147,7 @@ ActiveRecord::Schema.define(version: 2021_08_16_032056) do
  add_foreign_key "fiat_balances", "users"
  add_foreign_key "sell_crypto_orders", "currencies"
  add_foreign_key "sell_crypto_orders", "users"
+  add_foreign_key "stake_orders", "currencies"
  add_foreign_key "stake_orders", "users"
  add_foreign_key "user_documents", "users"
 end
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -2,19 +2,11 @@

 AdminUser.create!(email: "admin@example.com", password: "password")

-user = User.create!(
+Currency.create!(name: "CAKE")
+
+User.create!(
  first_name: "Test",
  last_name: "User",
  email: "user@example.com",
  password: "password"
 )
-
-currency = Currency.create!(name: "CAKE")
-
-Balance.create!(
-  user_id: user.id,
-  currency_id: currency.id,
-  amount: rand * 10000
-)
-
-FiatBalance.create!(user_id: user.id, amount_cents: 15000)
--- a/erd.svg
+++ b/erd.svg
@@ -4,180 +4,188 @@
 <!-- Generated by graphviz version 2.48.0 (0)
 -->
 <!-- Title: XStake Pages: 1 -->
-<svg width="426pt" height="712pt"
- viewBox="0.00 0.00 425.60 712.10" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(28.8 683.3)">
+<svg width="426pt" height="724pt"
+ viewBox="0.00 0.00 425.60 724.10" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(28.8 695.3)">
 <title>XStake</title>
-<polygon fill="white" stroke="transparent" points="-28.8,28.8 -28.8,-683.3 396.8,-683.3 396.8,28.8 -28.8,28.8"/>
-<text text-anchor="middle" x="184" y="-640.1" font-family="Arial Bold" font-size="13.00">XStake domain model</text>
+<polygon fill="white" stroke="transparent" points="-28.8,28.8 -28.8,-695.3 396.8,-695.3 396.8,28.8 -28.8,28.8"/>
+<text text-anchor="middle" x="184" y="-652.1" font-family="Arial Bold" font-size="13.00">XStake domain model</text>
 <!-- m_AdminUser -->
 <g id="node1" class="node">
 <title>m_AdminUser</title>
-<path fill="none" stroke="black" d="M12,-48C12,-48 150,-48 150,-48 156,-48 162,-54 162,-60 162,-60 162,-131 162,-131 162,-137 156,-143 150,-143 150,-143 12,-143 12,-143 6,-143 0,-137 0,-131 0,-131 0,-60 0,-60 0,-54 6,-48 12,-48"/>
-<text text-anchor="start" x="49" y="-130.2" font-family="Arial Bold" font-size="11.00">AdminUser</text>
-<polyline fill="none" stroke="black" points="0,-123 162,-123 "/>
-<text text-anchor="start" x="7" y="-109.5" font-family="Arial" font-size="10.00">email </text>
-<text text-anchor="start" x="34" y="-109.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗ U</text>
-<text text-anchor="start" x="7" y="-96.5" font-family="Arial" font-size="10.00">encrypted_password </text>
-<text text-anchor="start" x="101" y="-96.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="7" y="-83.5" font-family="Arial" font-size="10.00">remember_created_at </text>
-<text text-anchor="start" x="105" y="-83.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
-<text text-anchor="start" x="7" y="-70.5" font-family="Arial" font-size="10.00">reset_password_sent_at </text>
-<text text-anchor="start" x="117" y="-70.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
-<text text-anchor="start" x="7" y="-57.5" font-family="Arial" font-size="10.00">reset_password_token </text>
-<text text-anchor="start" x="109" y="-57.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
+<path fill="none" stroke="black" d="M12,-47C12,-47 150,-47 150,-47 156,-47 162,-53 162,-59 162,-59 162,-130 162,-130 162,-136 156,-142 150,-142 150,-142 12,-142 12,-142 6,-142 0,-136 0,-130 0,-130 0,-59 0,-59 0,-53 6,-47 12,-47"/>
+<text text-anchor="start" x="49" y="-129.2" font-family="Arial Bold" font-size="11.00">AdminUser</text>
+<polyline fill="none" stroke="black" points="0,-122 162,-122 "/>
+<text text-anchor="start" x="7" y="-108.5" font-family="Arial" font-size="10.00">email </text>
+<text text-anchor="start" x="34" y="-108.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗ U</text>
+<text text-anchor="start" x="7" y="-95.5" font-family="Arial" font-size="10.00">encrypted_password </text>
+<text text-anchor="start" x="101" y="-95.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="7" y="-82.5" font-family="Arial" font-size="10.00">remember_created_at </text>
+<text text-anchor="start" x="105" y="-82.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
+<text text-anchor="start" x="7" y="-69.5" font-family="Arial" font-size="10.00">reset_password_sent_at </text>
+<text text-anchor="start" x="117" y="-69.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
+<text text-anchor="start" x="7" y="-56.5" font-family="Arial" font-size="10.00">reset_password_token </text>
+<text text-anchor="start" x="109" y="-56.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
 </g>
 <!-- m_Balance -->
 <g id="node2" class="node">
 <title>m_Balance</title>
-<path fill="none" stroke="black" d="M223,-548C223,-548 343,-548 343,-548 349,-548 355,-554 355,-560 355,-560 355,-605 355,-605 355,-611 349,-617 343,-617 343,-617 223,-617 223,-617 217,-617 211,-611 211,-605 211,-605 211,-560 211,-560 211,-554 217,-548 223,-548"/>
-<text text-anchor="start" x="259.5" y="-604.2" font-family="Arial Bold" font-size="11.00">Balance</text>
-<polyline fill="none" stroke="black" points="211,-597 355,-597 "/>
-<text text-anchor="start" x="218" y="-583.5" font-family="Arial" font-size="10.00">amount </text>
-<text text-anchor="start" x="254" y="-583.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
-<text text-anchor="start" x="218" y="-570.5" font-family="Arial" font-size="10.00">currency_id </text>
-<text text-anchor="start" x="272" y="-570.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-<text text-anchor="start" x="218" y="-557.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="253" y="-557.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<path fill="none" stroke="black" d="M223,-560C223,-560 343,-560 343,-560 349,-560 355,-566 355,-572 355,-572 355,-617 355,-617 355,-623 349,-629 343,-629 343,-629 223,-629 223,-629 217,-629 211,-623 211,-617 211,-617 211,-572 211,-572 211,-566 217,-560 223,-560"/>
+<text text-anchor="start" x="259.5" y="-616.2" font-family="Arial Bold" font-size="11.00">Balance</text>
+<polyline fill="none" stroke="black" points="211,-609 355,-609 "/>
+<text text-anchor="start" x="218" y="-595.5" font-family="Arial" font-size="10.00">amount </text>
+<text text-anchor="start" x="254" y="-595.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
+<text text-anchor="start" x="218" y="-582.5" font-family="Arial" font-size="10.00">currency_id </text>
+<text text-anchor="start" x="272" y="-582.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<text text-anchor="start" x="218" y="-569.5" font-family="Arial" font-size="10.00">user_id </text>
+<text text-anchor="start" x="253" y="-569.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
 </g>
 <!-- m_BuyCryptoOrder -->
 <g id="node3" class="node">
 <title>m_BuyCryptoOrder</title>
-<path fill="none" stroke="black" d="M210,-423C210,-423 356,-423 356,-423 362,-423 368,-429 368,-435 368,-435 368,-506 368,-506 368,-512 362,-518 356,-518 356,-518 210,-518 210,-518 204,-518 198,-512 198,-506 198,-506 198,-435 198,-435 198,-429 204,-423 210,-423"/>
-<text text-anchor="start" x="237" y="-505.2" font-family="Arial Bold" font-size="11.00">BuyCryptoOrder</text>
-<polyline fill="none" stroke="black" points="198,-498 368,-498 "/>
-<text text-anchor="start" x="205" y="-484.5" font-family="Arial" font-size="10.00">currency_id </text>
-<text text-anchor="start" x="259" y="-484.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-<text text-anchor="start" x="205" y="-471.5" font-family="Arial" font-size="10.00">paid_amount_cents </text>
-<text text-anchor="start" x="293" y="-471.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
-<text text-anchor="start" x="205" y="-458.5" font-family="Arial" font-size="10.00">received_amount </text>
-<text text-anchor="start" x="283" y="-458.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
-<text text-anchor="start" x="205" y="-445.5" font-family="Arial" font-size="10.00">status </text>
-<text text-anchor="start" x="236" y="-445.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="205" y="-432.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="240" y="-432.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<path fill="none" stroke="black" d="M210,-435C210,-435 356,-435 356,-435 362,-435 368,-441 368,-447 368,-447 368,-518 368,-518 368,-524 362,-530 356,-530 356,-530 210,-530 210,-530 204,-530 198,-524 198,-518 198,-518 198,-447 198,-447 198,-441 204,-435 210,-435"/>
+<text text-anchor="start" x="237" y="-517.2" font-family="Arial Bold" font-size="11.00">BuyCryptoOrder</text>
+<polyline fill="none" stroke="black" points="198,-510 368,-510 "/>
+<text text-anchor="start" x="205" y="-496.5" font-family="Arial" font-size="10.00">currency_id </text>
+<text text-anchor="start" x="259" y="-496.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<text text-anchor="start" x="205" y="-483.5" font-family="Arial" font-size="10.00">paid_amount_cents </text>
+<text text-anchor="start" x="293" y="-483.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
+<text text-anchor="start" x="205" y="-470.5" font-family="Arial" font-size="10.00">received_amount </text>
+<text text-anchor="start" x="283" y="-470.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
+<text text-anchor="start" x="205" y="-457.5" font-family="Arial" font-size="10.00">status </text>
+<text text-anchor="start" x="236" y="-457.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="205" y="-444.5" font-family="Arial" font-size="10.00">user_id </text>
+<text text-anchor="start" x="240" y="-444.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
 </g>
 <!-- m_Currency -->
 <g id="node4" class="node">
 <title>m_Currency</title>
-<path fill="none" stroke="black" d="M21,-449C21,-449 141,-449 141,-449 147,-449 153,-455 153,-461 153,-461 153,-480 153,-480 153,-486 147,-492 141,-492 141,-492 21,-492 21,-492 15,-492 9,-486 9,-480 9,-480 9,-461 9,-461 9,-455 15,-449 21,-449"/>
-<text text-anchor="start" x="54.5" y="-479.2" font-family="Arial Bold" font-size="11.00">Currency</text>
-<polyline fill="none" stroke="black" points="9,-472 153,-472 "/>
-<text text-anchor="start" x="16" y="-458.5" font-family="Arial" font-size="10.00">name </text>
-<text text-anchor="start" x="44" y="-458.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<path fill="none" stroke="black" d="M21,-398C21,-398 141,-398 141,-398 147,-398 153,-404 153,-410 153,-410 153,-429 153,-429 153,-435 147,-441 141,-441 141,-441 21,-441 21,-441 15,-441 9,-435 9,-429 9,-429 9,-410 9,-410 9,-404 15,-398 21,-398"/>
+<text text-anchor="start" x="54.5" y="-428.2" font-family="Arial Bold" font-size="11.00">Currency</text>
+<polyline fill="none" stroke="black" points="9,-421 153,-421 "/>
+<text text-anchor="start" x="16" y="-407.5" font-family="Arial" font-size="10.00">name </text>
+<text text-anchor="start" x="44" y="-407.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
 </g>
 <!-- m_Currency&#45;&gt;m_Balance -->
 <g id="edge9" class="edge">
 <title>m_Currency&#45;&gt;m_Balance</title>
-<path fill="none" stroke="black" d="M120.56,-492.09C146.51,-506.62 181.46,-526.2 212.21,-543.42"/>
-<polygon fill="black" stroke="black" points="210.95,-546.32 220.34,-547.97 214.03,-540.83 210.95,-546.32"/>
+<path fill="none" stroke="black" d="M98.77,-441.41C119.93,-468.12 158.38,-513.63 198,-545.5 201.86,-548.61 205.95,-551.65 210.15,-554.6"/>
+<polygon fill="black" stroke="black" points="208.6,-557.35 217.82,-559.79 212.14,-552.14 208.6,-557.35"/>
 </g>
 <!-- m_Currency&#45;&gt;m_BuyCryptoOrder -->
 <g id="edge6" class="edge">
 <title>m_Currency&#45;&gt;m_BuyCryptoOrder</title>
-<path fill="none" stroke="black" d="M153.08,-470.5C164.62,-470.5 176.72,-470.5 188.7,-470.5"/>
-<polygon fill="black" stroke="black" points="188.82,-473.65 197.82,-470.5 188.82,-467.35 188.82,-473.65"/>
+<path fill="none" stroke="black" d="M150.27,-441C162.68,-444.91 175.82,-449.05 188.81,-453.14"/>
+<polygon fill="black" stroke="black" points="188.23,-456.27 197.76,-455.97 190.13,-450.26 188.23,-456.27"/>
 </g>
 <!-- m_SellCryptoOrder -->
 <g id="node6" class="node">
 <title>m_SellCryptoOrder</title>
-<path fill="none" stroke="black" d="M214.5,-298C214.5,-298 351.5,-298 351.5,-298 357.5,-298 363.5,-304 363.5,-310 363.5,-310 363.5,-381 363.5,-381 363.5,-387 357.5,-393 351.5,-393 351.5,-393 214.5,-393 214.5,-393 208.5,-393 202.5,-387 202.5,-381 202.5,-381 202.5,-310 202.5,-310 202.5,-304 208.5,-298 214.5,-298"/>
-<text text-anchor="start" x="238" y="-380.2" font-family="Arial Bold" font-size="11.00">SellCryptoOrder</text>
-<polyline fill="none" stroke="black" points="202.5,-373 363.5,-373 "/>
-<text text-anchor="start" x="210" y="-359.5" font-family="Arial" font-size="10.00">currency_id </text>
-<text text-anchor="start" x="264" y="-359.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
-<text text-anchor="start" x="210" y="-346.5" font-family="Arial" font-size="10.00">paid_amount </text>
-<text text-anchor="start" x="269" y="-346.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
-<text text-anchor="start" x="210" y="-333.5" font-family="Arial" font-size="10.00">received_amount_cents </text>
-<text text-anchor="start" x="317" y="-333.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
-<text text-anchor="start" x="210" y="-320.5" font-family="Arial" font-size="10.00">status </text>
-<text text-anchor="start" x="241" y="-320.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="210" y="-307.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="245" y="-307.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<path fill="none" stroke="black" d="M214.5,-310C214.5,-310 351.5,-310 351.5,-310 357.5,-310 363.5,-316 363.5,-322 363.5,-322 363.5,-393 363.5,-393 363.5,-399 357.5,-405 351.5,-405 351.5,-405 214.5,-405 214.5,-405 208.5,-405 202.5,-399 202.5,-393 202.5,-393 202.5,-322 202.5,-322 202.5,-316 208.5,-310 214.5,-310"/>
+<text text-anchor="start" x="238" y="-392.2" font-family="Arial Bold" font-size="11.00">SellCryptoOrder</text>
+<polyline fill="none" stroke="black" points="202.5,-385 363.5,-385 "/>
+<text text-anchor="start" x="210" y="-371.5" font-family="Arial" font-size="10.00">currency_id </text>
+<text text-anchor="start" x="264" y="-371.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<text text-anchor="start" x="210" y="-358.5" font-family="Arial" font-size="10.00">paid_amount </text>
+<text text-anchor="start" x="269" y="-358.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
+<text text-anchor="start" x="210" y="-345.5" font-family="Arial" font-size="10.00">received_amount_cents </text>
+<text text-anchor="start" x="317" y="-345.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
+<text text-anchor="start" x="210" y="-332.5" font-family="Arial" font-size="10.00">status </text>
+<text text-anchor="start" x="241" y="-332.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="210" y="-319.5" font-family="Arial" font-size="10.00">user_id </text>
+<text text-anchor="start" x="245" y="-319.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
 </g>
 <!-- m_Currency&#45;&gt;m_SellCryptoOrder -->
 <g id="edge8" class="edge">
 <title>m_Currency&#45;&gt;m_SellCryptoOrder</title>
-<path fill="none" stroke="black" d="M116.84,-448.73C139.24,-434.72 169.37,-415.89 197.77,-398.15"/>
-<polygon fill="black" stroke="black" points="199.76,-400.62 205.72,-393.18 196.42,-395.27 199.76,-400.62"/>
-</g>
-<!-- m_FiatBalance -->
-<g id="node5" class="node">
-<title>m_FiatBalance</title>
-<path fill="none" stroke="black" d="M223,-199C223,-199 343,-199 343,-199 349,-199 355,-205 355,-211 355,-211 355,-256 355,-256 355,-262 349,-268 343,-268 343,-268 223,-268 223,-268 217,-268 211,-262 211,-256 211,-256 211,-211 211,-211 211,-205 217,-199 223,-199"/>
-<text text-anchor="start" x="250" y="-255.2" font-family="Arial Bold" font-size="11.00">FiatBalance</text>
-<polyline fill="none" stroke="black" points="211,-248 355,-248 "/>
-<text text-anchor="start" x="218" y="-234.5" font-family="Arial" font-size="10.00">amount_cents </text>
-<text text-anchor="start" x="283" y="-234.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
-<text text-anchor="start" x="218" y="-221.5" font-family="Arial" font-size="10.00">amount_currency </text>
-<text text-anchor="start" x="297" y="-221.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="218" y="-208.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="253" y="-208.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<path fill="none" stroke="black" d="M151.39,-397.99C165.03,-393.76 179.51,-389.27 193.68,-384.88"/>
+<polygon fill="black" stroke="black" points="194.78,-387.84 202.45,-382.16 192.92,-381.82 194.78,-387.84"/>
 </g>
 <!-- m_StakeOrder -->
 <g id="node7" class="node">
 <title>m_StakeOrder</title>
-<path fill="none" stroke="black" d="M223,-86.5C223,-86.5 343,-86.5 343,-86.5 349,-86.5 355,-92.5 355,-98.5 355,-98.5 355,-156.5 355,-156.5 355,-162.5 349,-168.5 343,-168.5 343,-168.5 223,-168.5 223,-168.5 217,-168.5 211,-162.5 211,-156.5 211,-156.5 211,-98.5 211,-98.5 211,-92.5 217,-86.5 223,-86.5"/>
-<text text-anchor="start" x="251" y="-155.7" font-family="Arial Bold" font-size="11.00">StakeOrder</text>
-<polyline fill="none" stroke="black" points="211,-148.5 355,-148.5 "/>
-<text text-anchor="start" x="218" y="-135.5" font-family="Arial" font-size="10.00">amount </text>
-<text text-anchor="start" x="254" y="-135.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
-<text text-anchor="start" x="218" y="-122.5" font-family="Arial" font-size="10.00">pool_name </text>
-<text text-anchor="start" x="269" y="-122.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="218" y="-109.5" font-family="Arial" font-size="10.00">status </text>
-<text text-anchor="start" x="249" y="-109.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="218" y="-96.5" font-family="Arial" font-size="10.00">user_id </text>
-<text text-anchor="start" x="253" y="-96.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+<path fill="none" stroke="black" d="M223,-185C223,-185 343,-185 343,-185 349,-185 355,-191 355,-197 355,-197 355,-268 355,-268 355,-274 349,-280 343,-280 343,-280 223,-280 223,-280 217,-280 211,-274 211,-268 211,-268 211,-197 211,-197 211,-191 217,-185 223,-185"/>
+<text text-anchor="start" x="251" y="-267.2" font-family="Arial Bold" font-size="11.00">StakeOrder</text>
+<polyline fill="none" stroke="black" points="211,-260 355,-260 "/>
+<text text-anchor="start" x="218" y="-246.5" font-family="Arial" font-size="10.00">amount </text>
+<text text-anchor="start" x="254" y="-246.5" font-family="Arial Italic" font-size="10.00" fill="#999999">decimal (20,10) ∗</text>
+<text text-anchor="start" x="218" y="-233.5" font-family="Arial" font-size="10.00">currency_id </text>
+<text text-anchor="start" x="272" y="-233.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) FK</text>
+<text text-anchor="start" x="218" y="-220.5" font-family="Arial" font-size="10.00">pool_name </text>
+<text text-anchor="start" x="269" y="-220.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="218" y="-207.5" font-family="Arial" font-size="10.00">status </text>
+<text text-anchor="start" x="249" y="-207.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="218" y="-194.5" font-family="Arial" font-size="10.00">user_id </text>
+<text text-anchor="start" x="253" y="-194.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
+</g>
+<!-- m_Currency&#45;&gt;m_StakeOrder -->
+<g id="edge10" class="edge">
+<title>m_Currency&#45;&gt;m_StakeOrder</title>
+<path fill="none" stroke="black" d="M100.24,-397.8C122.24,-372.15 160.91,-328.76 198,-295.5 201.47,-292.38 205.09,-289.26 208.79,-286.17"/>
+<polygon fill="black" stroke="black" points="211.04,-288.4 215.99,-280.25 207.04,-283.53 211.04,-288.4"/>
+</g>
+<!-- m_FiatBalance -->
+<g id="node5" class="node">
+<title>m_FiatBalance</title>
+<path fill="none" stroke="black" d="M223,-86C223,-86 343,-86 343,-86 349,-86 355,-92 355,-98 355,-98 355,-143 355,-143 355,-149 349,-155 343,-155 343,-155 223,-155 223,-155 217,-155 211,-149 211,-143 211,-143 211,-98 211,-98 211,-92 217,-86 223,-86"/>
+<text text-anchor="start" x="250" y="-142.2" font-family="Arial Bold" font-size="11.00">FiatBalance</text>
+<polyline fill="none" stroke="black" points="211,-135 355,-135 "/>
+<text text-anchor="start" x="218" y="-121.5" font-family="Arial" font-size="10.00">amount_cents </text>
+<text text-anchor="start" x="283" y="-121.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer ∗</text>
+<text text-anchor="start" x="218" y="-108.5" font-family="Arial" font-size="10.00">amount_currency </text>
+<text text-anchor="start" x="297" y="-108.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="218" y="-95.5" font-family="Arial" font-size="10.00">user_id </text>
+<text text-anchor="start" x="253" y="-95.5" font-family="Arial Italic" font-size="10.00" fill="#999999">integer (8) ∗ FK</text>
 </g>
 <!-- m_User -->
 <g id="node8" class="node">
 <title>m_User</title>
-<path fill="none" stroke="black" d="M12,-173C12,-173 150,-173 150,-173 156,-173 162,-179 162,-185 162,-185 162,-282 162,-282 162,-288 156,-294 150,-294 150,-294 12,-294 12,-294 6,-294 0,-288 0,-282 0,-282 0,-185 0,-185 0,-179 6,-173 12,-173"/>
-<text text-anchor="start" x="66.5" y="-281.2" font-family="Arial Bold" font-size="11.00">User</text>
-<polyline fill="none" stroke="black" points="0,-274 162,-274 "/>
-<text text-anchor="start" x="7" y="-260.5" font-family="Arial" font-size="10.00">email </text>
-<text text-anchor="start" x="34" y="-260.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗ U</text>
-<text text-anchor="start" x="7" y="-247.5" font-family="Arial" font-size="10.00">encrypted_password </text>
-<text text-anchor="start" x="101" y="-247.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="7" y="-234.5" font-family="Arial" font-size="10.00">first_name </text>
-<text text-anchor="start" x="56" y="-234.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="7" y="-221.5" font-family="Arial" font-size="10.00">last_name </text>
-<text text-anchor="start" x="56" y="-221.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
-<text text-anchor="start" x="7" y="-208.5" font-family="Arial" font-size="10.00">remember_created_at </text>
-<text text-anchor="start" x="105" y="-208.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
-<text text-anchor="start" x="7" y="-195.5" font-family="Arial" font-size="10.00">reset_password_sent_at </text>
-<text text-anchor="start" x="117" y="-195.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
-<text text-anchor="start" x="7" y="-182.5" font-family="Arial" font-size="10.00">reset_password_token </text>
-<text text-anchor="start" x="109" y="-182.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
+<path fill="none" stroke="black" d="M12,-172C12,-172 150,-172 150,-172 156,-172 162,-178 162,-184 162,-184 162,-281 162,-281 162,-287 156,-293 150,-293 150,-293 12,-293 12,-293 6,-293 0,-287 0,-281 0,-281 0,-184 0,-184 0,-178 6,-172 12,-172"/>
+<text text-anchor="start" x="66.5" y="-280.2" font-family="Arial Bold" font-size="11.00">User</text>
+<polyline fill="none" stroke="black" points="0,-273 162,-273 "/>
+<text text-anchor="start" x="7" y="-259.5" font-family="Arial" font-size="10.00">email </text>
+<text text-anchor="start" x="34" y="-259.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗ U</text>
+<text text-anchor="start" x="7" y="-246.5" font-family="Arial" font-size="10.00">encrypted_password </text>
+<text text-anchor="start" x="101" y="-246.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="7" y="-233.5" font-family="Arial" font-size="10.00">first_name </text>
+<text text-anchor="start" x="56" y="-233.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="7" y="-220.5" font-family="Arial" font-size="10.00">last_name </text>
+<text text-anchor="start" x="56" y="-220.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string ∗</text>
+<text text-anchor="start" x="7" y="-207.5" font-family="Arial" font-size="10.00">remember_created_at </text>
+<text text-anchor="start" x="105" y="-207.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
+<text text-anchor="start" x="7" y="-194.5" font-family="Arial" font-size="10.00">reset_password_sent_at </text>
+<text text-anchor="start" x="117" y="-194.5" font-family="Arial Italic" font-size="10.00" fill="#999999">datetime</text>
+<text text-anchor="start" x="7" y="-181.5" font-family="Arial" font-size="10.00">reset_password_token </text>
+<text text-anchor="start" x="109" y="-181.5" font-family="Arial Italic" font-size="10.00" fill="#999999">string</text>
 </g>
 <!-- m_User&#45;&gt;m_Balance -->
 <g id="edge3" class="edge">
 <title>m_User&#45;&gt;m_Balance</title>
-<path fill="none" stroke="black" d="M106.63,-294.01C122.7,-333.81 143.96,-387.11 162,-434.5 178.66,-478.25 167.99,-497.56 198,-533.5 200.43,-536.42 203.09,-539.2 205.91,-541.85"/>
-<polygon fill="black" stroke="black" points="203.89,-544.27 212.76,-547.79 208.02,-539.51 203.89,-544.27"/>
+<path fill="none" stroke="black" d="M118.97,-293.21C134.07,-320.11 150.62,-352.6 162,-383.5 187.49,-452.71 154.51,-485.93 198,-545.5 200.01,-548.25 202.23,-550.88 204.6,-553.37"/>
+<polygon fill="black" stroke="black" points="202.54,-555.76 211.23,-559.69 206.89,-551.2 202.54,-555.76"/>
 </g>
 <!-- m_User&#45;&gt;m_BuyCryptoOrder -->
 <g id="edge5" class="edge">
 <title>m_User&#45;&gt;m_BuyCryptoOrder</title>
-<path fill="none" stroke="black" d="M115.16,-294.4C136.17,-329.91 165.48,-374.29 198,-408.5 200.6,-411.23 203.33,-413.93 206.16,-416.59"/>
-<polygon fill="black" stroke="black" points="204.11,-418.98 212.9,-422.68 208.34,-414.31 204.11,-418.98"/>
+<path fill="none" stroke="black" d="M111.75,-293.26C132.6,-332.2 162.94,-382.4 198,-420.5 200.55,-423.28 203.25,-426.01 206.04,-428.69"/>
+<polygon fill="black" stroke="black" points="203.97,-431.07 212.73,-434.85 208.24,-426.43 203.97,-431.07"/>
 </g>
 <!-- m_User&#45;&gt;m_FiatBalance -->
 <g id="edge4" class="edge">
 <title>m_User&#45;&gt;m_FiatBalance</title>
-<path fill="none" stroke="black" d="M162.2,-233.5C178.28,-233.5 195.08,-233.5 210.83,-233.5"/>
+<path fill="none" stroke="black" d="M162.2,-187.59C181.54,-176.76 201.91,-165.35 220.26,-155.07"/>
 </g>
 <!-- m_User&#45;&gt;m_SellCryptoOrder -->
 <g id="edge7" class="edge">
 <title>m_User&#45;&gt;m_SellCryptoOrder</title>
-<path fill="none" stroke="black" d="M162.2,-278.41C172.76,-284.33 183.63,-290.41 194.32,-296.4"/>
-<polygon fill="black" stroke="black" points="193.05,-299.3 202.44,-300.95 196.12,-293.8 193.05,-299.3"/>
+<path fill="none" stroke="black" d="M162.2,-282.62C173.96,-289.98 186.11,-297.57 197.95,-304.97"/>
+<polygon fill="black" stroke="black" points="196.38,-307.7 205.68,-309.8 199.72,-302.36 196.38,-307.7"/>
 </g>
 <!-- m_User&#45;&gt;m_StakeOrder -->
 <g id="edge2" class="edge">
 <title>m_User&#45;&gt;m_StakeOrder</title>
-<path fill="none" stroke="black" d="M162.2,-191C175.51,-183.94 189.32,-176.62 202.62,-169.57"/>
-<polygon fill="black" stroke="black" points="204.35,-172.22 210.83,-165.22 201.4,-166.65 204.35,-172.22"/>
+<path fill="none" stroke="black" d="M162.2,-232.5C175.14,-232.5 188.54,-232.5 201.49,-232.5"/>
+<polygon fill="black" stroke="black" points="201.83,-235.65 210.83,-232.5 201.83,-229.35 201.83,-235.65"/>
 </g>
 <!-- m_UserDocument -->
 <g id="node9" class="node">
@@ -193,8 +201,8 @@
 <!-- m_User&#45;&gt;m_UserDocument -->
 <g id="edge1" class="edge">
 <title>m_User&#45;&gt;m_UserDocument</title>
-<path fill="none" stroke="black" d="M150.99,-172.78C154.93,-168.13 158.64,-163.35 162,-158.5 185.8,-124.08 169.63,-102.26 198,-71.5 201.11,-68.12 204.55,-64.97 208.21,-62.04"/>
-<polygon fill="black" stroke="black" points="210.12,-64.54 215.48,-56.65 206.37,-59.48 210.12,-64.54"/>
+<path fill="none" stroke="black" d="M150.96,-171.77C154.91,-167.12 158.63,-162.35 162,-157.5 185.64,-123.47 169.85,-101.9 198,-71.5 201.12,-68.13 204.56,-64.98 208.22,-62.05"/>
+<polygon fill="black" stroke="black" points="210.14,-64.56 215.5,-56.67 206.39,-59.49 210.14,-64.56"/>
 </g>
 </g>
 </svg>
--- a/spec/factories/stake_orders.rb
+++ b/spec/factories/stake_orders.rb
@@ -4,20 +4,23 @@
 #
 # Table name: stake_orders
 #
-#  id         :bigint           not null, primary key
-#  amount     :decimal(20, 10)  default(0.0), not null
-#  pool_name  :string           not null
-#  status     :string           not null
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#  user_id    :bigint           not null
+#  id          :bigint           not null, primary key
+#  amount      :decimal(20, 10)  default(0.0), not null
+#  pool_name   :string           not null
+#  status      :string           not null
+#  created_at  :datetime         not null
+#  updated_at  :datetime         not null
+#  currency_id :bigint
+#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_stake_orders_on_user_id  (user_id)
+#  index_stake_orders_on_currency_id  (currency_id)
+#  index_stake_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
+#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 FactoryBot.define do
--- a/spec/graphql/mutations/create_stake_order_spec.rb
+++ b/spec/graphql/mutations/create_stake_order_spec.rb
@@ -0,0 +1,123 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe(Mutations::CreateStakeOrder, type: :mutation) do
+  let(:query_string) do
+    <<~GQL
+      mutation(
+        $currencyId: ID!,
+        $amount: String!,
+        $poolName: String!,
+      ) {
+        createStakeOrder(input: {
+          order: {
+            currencyId: $currencyId,
+            amount: $amount,
+            poolName: $poolName,
+          }
+        }) {
+          errors {
+            fullMessages
+            fieldName
+            messages
+            path
+          }
+          order {
+            poolName
+            status
+            amount
+          }
+        }
+      }
+    GQL
+  end
+
+  context "when the user has enough balance" do
+    it "withdraws from his account and creates a buy order" do
+      currency = create(:currency)
+      user = create(
+        :user,
+        balances: [
+          build(:balance, currency: currency, amount: 1.0034),
+        ]
+      )
+
+      currency_global_id = GraphQL::Schema::UniqueWithinType.encode("Currency", currency.id)
+
+      variables = {
+        "currencyId": currency_global_id,
+        "amount": "0.80",
+        "poolName": "CAKE/BNB",
+        "status": "PROCESSING",
+      }
+
+      context = { current_user: user }
+
+      result = XStakeSchema.execute(
+        query_string,
+        variables: variables,
+        context: context
+      ).to_h.with_indifferent_access
+
+      expect(result).to(eq({
+        "data" => {
+          "createStakeOrder" => {
+            "errors" => nil,
+            "order" => {
+              "status" => "PROCESSING",
+              "amount" => "0.8",
+              "poolName" => "CAKE/BNB",
+            },
+          },
+        },
+      }))
+
+      expect(user.balances.first.reload.amount.to_s).to(eq("0.2034"))
+    end
+  end
+
+  context "when the user does not have enough balance" do
+    it "returns withdrawl error" do
+      currency = create(:currency)
+      user = create(
+        :user,
+        balances: [
+          build(:balance, currency: currency, amount: 0.0034),
+        ]
+      )
+
+      currency_global_id = GraphQL::Schema::UniqueWithinType.encode("Currency", currency.id)
+
+      variables = {
+        "currencyId": currency_global_id,
+        "amount": "0.80",
+        "poolName": "CAKE/BNB",
+      }
+
+      context = { current_user: user }
+
+      result = XStakeSchema.execute(
+        query_string,
+        variables: variables,
+        context: context
+      ).to_h.with_indifferent_access
+
+      expect(result).to(eq({
+        "data" => {
+          "createStakeOrder" => {
+            "errors" => [{
+              "fullMessages" => ["Quantia saldo insuficiente"],
+              "fieldName" => "amount",
+              "messages" => ["saldo insuficiente"],
+              "path" => ["attributes", "amount"],
+            }],
+            "order" => nil,
+          },
+        },
+      }))
+
+      expect(user.balances.first.reload.amount.to_s).to(eq("0.0034"))
+    end
+  end
+end
--- a/spec/models/stake_order_spec.rb
+++ b/spec/models/stake_order_spec.rb
@@ -4,20 +4,23 @@
 #
 # Table name: stake_orders
 #
-#  id         :bigint           not null, primary key
-#  amount     :decimal(20, 10)  default(0.0), not null
-#  pool_name  :string           not null
-#  status     :string           not null
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#  user_id    :bigint           not null
+#  id          :bigint           not null, primary key
+#  amount      :decimal(20, 10)  default(0.0), not null
+#  pool_name   :string           not null
+#  status      :string           not null
+#  created_at  :datetime         not null
+#  updated_at  :datetime         not null
+#  currency_id :bigint
+#  user_id     :bigint           not null
 #
 # Indexes
 #
-#  index_stake_orders_on_user_id  (user_id)
+#  index_stake_orders_on_currency_id  (currency_id)
+#  index_stake_orders_on_user_id      (user_id)
 #
 # Foreign Keys
 #
+#  fk_rails_...  (currency_id => currencies.id)
 #  fk_rails_...  (user_id => users.id)
 #
 require "rails_helper"
@@ -30,5 +33,6 @@ RSpec.describe(StakeOrder, type: :model) do

  describe "associations" do
    it { is_expected.to(belong_to(:user)) }
+    it { is_expected.to(belong_to(:currency)) }
  end
 end