diff --git a/client/src/pages/NewAccount/NewAccount.tsx b/client/src/pages/NewAccount/NewAccount.tsx
index d16b4a5..36a1a19 100644
--- a/client/src/pages/NewAccount/NewAccount.tsx
+++ b/client/src/pages/NewAccount/NewAccount.tsx
@@ -31,8 +31,8 @@ export const NewAccount = () => {
     })
       .then(async (res) => {
         const result = await res.json();
-        if (result.error) {
-          setError(result.error);
+        if (result.errors) {
+          setError(result.errors[0]);
         } else {
           login(data.email, data.password);
         }
diff --git a/client/src/providers/AuthProvider.tsx b/client/src/providers/AuthProvider.tsx
index 5a2a1b1..e214f84 100644
--- a/client/src/providers/AuthProvider.tsx
+++ b/client/src/providers/AuthProvider.tsx
@@ -47,7 +47,7 @@ export const AuthProvider = ({ children, ...rest }: AuthProviderProps) => {
         }),
       }).then(async (res) => {
         if (res.status === 200) {
-          setToken((await res.json()).token);
+          setToken((await res.json()).data.token);
           setIsLoginDialogOpen(false);
         }
       });
diff --git a/server/src/controller/index.ts b/server/src/controller/index.ts
index 5aae651..98e3cc4 100644
--- a/server/src/controller/index.ts
+++ b/server/src/controller/index.ts
@@ -1,2 +1,3 @@
-export { UserRoutes } from './user.controller'
-export { ProjectRoutes } from './project.controller'
\ No newline at end of file
+export { routes as UserRoutes } from "./user.controller";
+export { routes as ProjectRoutes } from "./project.controller";
+export { routes as TaskRoutes } from "./task.controller";
diff --git a/server/src/controller/project.controller.ts b/server/src/controller/project.controller.ts
index 4413845..e5c80b8 100644
--- a/server/src/controller/project.controller.ts
+++ b/server/src/controller/project.controller.ts
@@ -4,16 +4,17 @@ import { NewProjectDto } from "../dto/project.new.dto";
 import { UpdateProjectDto } from "../dto/project.update.dto";
 import { ProjectService } from "../service/project.service";
 import {
-  CreateResponse, DeleteResponse, IndexResponse,
-  UpdateResponse
+  CreateResponse,
+  DeleteResponse,
+  IndexResponse,
+  UpdateResponse,
 } from "./typings/responses";
 
-const router = Router();
-export const ProjectRoutes = router;
+export const routes = Router();
 
 export const apiNamespace = "/projects";
 
-router.get<typeof apiNamespace, IndexResponse<ProjectDto>>(
+routes.get<typeof apiNamespace, IndexResponse<ProjectDto>>(
   apiNamespace,
   async (req, res) => {
     const projects = await ProjectService.listAllByUserId(req.userId);
@@ -27,67 +28,71 @@ router.get<typeof apiNamespace, IndexResponse<ProjectDto>>(
   }
 );
 
-router.post<typeof apiNamespace, unknown, CreateResponse<ProjectDto>, NewProjectDto>(
-  apiNamespace,
-  (req, res) => {
-    const { name } = req.body;
+routes.post<
+  typeof apiNamespace,
+  unknown,
+  CreateResponse<ProjectDto>,
+  NewProjectDto
+>(apiNamespace, (req, res) => {
+  const { name } = req.body;
 
-    ProjectService.create(req.userId, {
-      name,
+  ProjectService.create(req.userId, {
+    name,
+  })
+    .then((project) => {
+      res.json({
+        data: {
+          id: project.id,
+          name: project.name,
+        },
+      });
     })
-      .then((project) => {
-        res.json({
-          data: {
-            id: project.id,
-            name: project.name,
-          },
-        });
-      })
-      .catch((err) => {
-        res.status(422).json({
-          errors: [err.message],
-        });
+    .catch((err) => {
+      res.status(422).json({
+        errors: [err.message],
       });
+    });
+});
+
+const putPath = `${apiNamespace}/:id`;
+routes.put<
+  typeof putPath,
+  { id: string },
+  UpdateResponse<ProjectDto>,
+  UpdateProjectDto
+>(putPath, async (req, res) => {
+  const { id } = req.params;
+  const { name } = req.body;
+  const projectId = parseInt(id);
+
+  const projectToBeUpdated = await ProjectService.findProjectFromUserById(
+    req.userId,
+    projectId
+  );
+
+  if (projectToBeUpdated) {
+    ProjectService.update(projectToBeUpdated, {
+      name,
+    }).then((success) => {
+      if (success) {
+        res.status(204).json();
+      } else {
+        res.status(402).json();
+      }
+    });
+  } else {
+    res.status(404).json({
+      errors: ["Project not found"],
+    });
   }
-);
+});
 
-const putPath = `${apiNamespace}/:taskId`;
-router.put<typeof putPath, { taskId: string }, UpdateResponse<ProjectDto>, UpdateProjectDto>(
-  putPath,
-  async (req, res) => {
-    const { taskId } = req.params;
-    const { name } = req.body;
-    const projectId = parseInt(taskId);
-
-    const projectToBeUpdated = await ProjectService.findProjectFromUserById(
-      req.userId,
-      projectId
-    );
-
-    if (projectToBeUpdated) {
-      ProjectService.update(projectToBeUpdated, {
-        name,
-      }).then((success) => {
-        if (success) {
-          res.status(204).json();
-        } else {
-          res.status(402).json();
-        }
-      });
-    } else {
-      res.status(404).json({
-        errors: ["Project not found"],
-      });
-    }
-  }
-);
-
-const deletePath = `${apiNamespace}/:taskId`;
-router.delete<typeof deletePath, { taskId: string }, DeleteResponse>(
+const deletePath = `${apiNamespace}/:id`;
+routes.delete<typeof deletePath, { id: string }, DeleteResponse>(
   deletePath,
   async (req, res) => {
-    const { taskId } = req.params;
-    const projectId = parseInt(taskId);
+    const { id } = req.params;
+    const projectId = parseInt(id);
 
     const projecToBeDeleted = await ProjectService.findProjectFromUserById(
       req.userId,
diff --git a/server/src/controller/task.controller.ts b/server/src/controller/task.controller.ts
index 19957c9..34cb19b 100644
--- a/server/src/controller/task.controller.ts
+++ b/server/src/controller/task.controller.ts
@@ -1,77 +1,90 @@
 import { Router } from "express";
-import { ProjectDto } from "../dto/poject.dto";
+import { NewTaskDto } from "../dto/task.new.dto";
 import { ProjectService } from "../service/project.service";
 import { TaskService } from "../service/task.service";
+import {
+  CreateResponse,
+  DeleteResponse,
+  IndexResponse,
+  ShowResponse,
+  UpdateResponse,
+} from "./typings/responses";
 
-const router = Router();
-export const TaskRoutes = router;
+export const routes = Router();
 
-export const apiNamespace = "/projects/:projectId";
+export const apiNamespace = "/projects/:projectId/tasks";
 
-router.get(`${apiNamespace}/tasks`, async (req, res) => {
+routes.get<typeof apiNamespace, { projectId: string }, IndexResponse<TaskDto>>(
+  apiNamespace,
+  async (req, res) => {
+    const { projectId } = req.params;
+    const parsedProjctId = parseInt(projectId);
+
+    const project = await ProjectService.findProjectFromUserById(
+      req.userId,
+      parsedProjctId
+    );
+
+    if (!project) {
+      res.status(404).send("Not found");
+    } else {
+      const tasks = await TaskService.findByProjectId(parsedProjctId);
+
+      res.json({
+        data: tasks.map((task) => ({
+          id: task.id,
+          description: task.description,
+          createdAt: task.createdAt,
+          finishedAt: task.finishedAt,
+        })),
+      });
+    }
+  }
+);
+
+routes.post<
+  typeof apiNamespace,
+  { projectId: string },
+  CreateResponse<TaskDto>,
+  NewTaskDto
+>(apiNamespace, async (req, res) => {
   let { projectId } = req.params;
-  const parsedProjctId = parseInt(projectId);
 
   const project = await ProjectService.findProjectFromUserById(
     req.userId,
-    parsedProjctId
+    parseInt(projectId)
   );
 
   if (!project) {
-    res.status(404).json({
-      error: "Project not found",
+    res.status(404).send("Not found");
+  } else {
+    const task = await TaskService.create(project, {
+      description: req.body.description,
+    });
+
+    res.json({
+      data: {
+        id: task.id,
+        createdAt: task.createdAt,
+        description: task.description,
+        finishedAt: task.finishedAt,
+      },
     });
-    return;
   }
-
-  const tasks: TaskDto[] = (
-    await TaskService.findByProjectId(parsedProjctId)
-  ).map((task) => ({
-    id: task.id,
-    description: task.description,
-    createdAt: task.createdAt,
-    finishedAt: task.finishedAt,
-  }));
-
-  res.json({
-    data: tasks,
-  });
 });
 
-router.post(`${apiNamespace}/tasks`, async (req, res) => {
-  let { projectId } = req.params;
-  const parsedProjctId = parseInt(projectId);
-
-  const project = await ProjectService.findProjectFromUserById(
-    req.userId,
-    parsedProjctId
-  );
-
-  if (!project) {
-    res.status(404).json();
-    return;
-  }
-
-  const task = await TaskService.create(project, {
-    description: req.body.description,
-  });
-
-  const taskDto: TaskDto = {
-    id: task.id,
-    createdAt: task.createdAt,
-    description: task.description,
-    finishedAt: task.finishedAt,
-  };
-
-  res.json({
-    data: taskDto,
-  });
-});
-
-router.put(`${apiNamespace}/tasks/:id`, async (req, res) => {
-  let { projectId, id } = req.params;
+const puthPath = `${apiNamespace}/:taskId`;
+routes.put<
+  typeof puthPath,
+  {
+    projectId: string;
+    taskId: string;
+  },
+  UpdateResponse<TaskDto>,
+  UpdateTaskDto
+>(puthPath, async (req, res) => {
+  const { projectId, taskId } = req.params;
   const { description }: UpdateTaskDto = req.body;
-
   const parsedProjctId = parseInt(projectId);
 
   const project = await ProjectService.findProjectFromUserById(
@@ -80,31 +93,36 @@ router.put(`${apiNamespace}/tasks/:id`, async (req, res) => {
   );
 
   if (!project) {
-    res.status(404).json();
-    return;
+    res.status(404).send("Not found");
   }
 
   const task = await TaskService.findByProjectIdAndTaskId(
     parsedProjctId,
-    parseInt(id)
+    parseInt(taskId)
   );
 
   await TaskService.update(task, { description });
 
-  const taskDto: TaskDto = {
-    id: task.id,
-    createdAt: task.createdAt,
-    description: task.description,
-    finishedAt: task.finishedAt,
-  };
-
   res.json({
-    data: taskDto,
+    data: {
+      id: task.id,
+      createdAt: task.createdAt,
+      description: task.description,
+      finishedAt: task.finishedAt,
+    },
   });
 });
 
-router.delete(`${apiNamespace}/tasks/:id`, async (req, res) => {
-  let { projectId, id } = req.params;
+const deletePath = `${apiNamespace}/:taskId`;
+routes.delete<
+  typeof deletePath,
+  {
+    projectId: string;
+    taskId: string;
+  },
+  DeleteResponse
+>(deletePath, async (req, res) => {
+  let { projectId, taskId } = req.params;
   const parsedProjctId = parseInt(projectId);
 
   const project = await ProjectService.findProjectFromUserById(
@@ -112,32 +130,32 @@ router.delete(`${apiNamespace}/tasks/:id`, async (req, res) => {
     parsedProjctId
   );
 
-  if (!project) {
-    res.status(404).json();
-    return;
-  }
-
   const task = await TaskService.findByProjectIdAndTaskId(
     parsedProjctId,
-    parseInt(id)
+    parseInt(taskId)
   );
 
-  if (!task) {
-    res.status(404).json();
-    return;
-  }
-
-  const success = await TaskService.destroy(task);
-
-  if (success) {
-    res.status(204).json();
+  if (!project || !task) {
+    res.status(404).send("Not found");
   } else {
-    res.status(504).json();
+    const success = await TaskService.destroy(task);
+
+    res.status(success ? 204 : 505).json({
+      success,
+    });
   }
 });
 
-router.get(`${apiNamespace}/tasks/:id/finish`, async (req, res) => {
-  const { projectId, id } = req.params;
+const finishPath = `${apiNamespace}/:taskId/finish`;
+routes.get<
+  typeof finishPath,
+  {
+    projectId: string;
+    taskId: string;
+  },
+  ShowResponse<TaskDto>
+>(finishPath, async (req, res) => {
+  const { projectId, taskId } = req.params;
   const parsedProjctId = parseInt(projectId);
 
   const project = await ProjectService.findProjectFromUserById(
@@ -145,27 +163,23 @@ router.get(`${apiNamespace}/tasks/:id/finish`, async (req, res) => {
     parsedProjctId
   );
 
-
   const task = await TaskService.findByProjectIdAndTaskId(
     parsedProjctId,
-    parseInt(id)
+    parseInt(taskId)
   );
 
   if (!project || !task) {
     res.status(404).json();
-    return;
+  } else {
+    await TaskService.finish(task);
+
+    res.json({
+      data: {
+        id: task.id,
+        createdAt: task.createdAt,
+        description: task.description,
+        finishedAt: task.finishedAt,
+      },
+    });
   }
-
-  const result = await TaskService.finish(task);
-
-  const resultDto: TaskDto = {
-    id: result.id,
-    createdAt: result.createdAt,
-    description: result.description,
-    finishedAt: result.finishedAt,
-  };
-
-  res.json({
-    data: resultDto,
-  });
 });
diff --git a/server/src/controller/typings/responses.d.ts b/server/src/controller/typings/responses.d.ts
index 9ce4be5..4a86f23 100644
--- a/server/src/controller/typings/responses.d.ts
+++ b/server/src/controller/typings/responses.d.ts
@@ -1,10 +1,14 @@
 export type ErrorResponse = {
   errors: string[];
-};
+} | string;
 
 export type IndexResponse<TData> = {
   data: TData[];
-};
+} | string;
+
+export type ShowResponse<TData> = {
+  data: TData;
+}
 
 export type CreateResponse<TData> =
   | {
diff --git a/server/src/controller/user.controller.ts b/server/src/controller/user.controller.ts
index 68b6515..208072e 100644
--- a/server/src/controller/user.controller.ts
+++ b/server/src/controller/user.controller.ts
@@ -1,72 +1,91 @@
 import { Router } from "express";
+import { UserDto } from "../dto/user.dto";
 import { AuthService } from "../service/auth.service";
 import { UserService } from "../service/user.service";
+import { CreateResponse, DeleteResponse } from "./typings/responses";
 
-const router = Router();
-export const UserRoutes = router;
+export const routes = Router();
 
 export const apiNamespace = "/users";
 
-router.post(apiNamespace, (req, res) => {
-  const { email, password } = req.body;
+routes.post<typeof apiNamespace, unknown, CreateResponse<UserDto>>(
+  apiNamespace,
+  (req, res) => {
+    const { email, password } = req.body;
+
+    UserService.create({
+      email,
+      password,
+    })
+      .then((user) => {
+        res.json({
+          data: {
+            email: user.email,
+          },
+        });
+      })
+      .catch((err) => {
+        res.status(422).json({
+          errors: [err.message],
+        });
+      });
+  }
+);
+
+const signInPath = `${apiNamespace}/sign_in`;
+routes.post<typeof signInPath, unknown, CreateResponse<SessionDto>>(
+  signInPath,
+  async (req, res) => {
+    const { email, password } = req.body;
+
+    const user = await UserService.findByEmail(email);
+
+    if (!user) {
+      res.status(500).json({
+        errors: ["Invalid credentails"],
+      });
+      return;
+    }
+
+    const isPasswordValid = await AuthService.isUserPasswordValid(
+      user,
+      password
+    );
+
+    if (isPasswordValid) {
+      const token = await AuthService.createSession(user);
 
-  UserService.create({
-    email,
-    password,
-  })
-    .then(() => {
       res.json({
+        data: {
+          token,
+        },
+      });
+    } else {
+      res.status(500).json({
+        data: {
+          token: null,
+        },
+      });
+    }
+  }
+);
+
+const signOutPath = `${apiNamespace}/sign_out`;
+routes.delete<typeof signOutPath, unknown, DeleteResponse>(
+  signOutPath,
+  async (req, res) => {
+    const token = req.headers["x-access-token"];
+
+    if (typeof token === "string") {
+      await AuthService.destoySession(token);
+
+      res.status(204).json({
         success: true,
       });
-    })
-    .catch((err) => {
+    } else {
       res.status(422).json({
-        error: err.message,
+        success: false,
       });
-    });
-});
-
-router.post(`${apiNamespace}/sign_in`, async (req, res) => {
-  const { email, password } = req.body;
-
-  const user = await UserService.findByEmail(email);
-
-  if (!user) {
-    res.status(500).json({
-      error: "Invalid credentails",
-    });
-    return;
+    }
   }
-
-  const isPasswordValid = await AuthService.isUserPasswordValid(user, password);
-
-  if (isPasswordValid) {
-    const token = await AuthService.createSession(user);
-
-    res.json({
-      auth: true,
-      token,
-    });
-  } else {
-    res.status(500).json({
-      auth: false,
-      token: null,
-    });
-  }
-});
-
-router.delete(`${apiNamespace}/sign_out`, async (req, res) => {
-  const token = req.headers["x-access-token"];
-
-  if (typeof token === "string") {
-    await AuthService.destoySession(token);
-
-    res.status(204).json({
-      success: true,
-    });
-  } else {
-    res.status(422).json({
-      success: false,
-    });
-  }
-});
+);
diff --git a/server/src/dto/user.dto.ts b/server/src/dto/user.dto.ts
index 91334f6..f5665ea 100644
--- a/server/src/dto/user.dto.ts
+++ b/server/src/dto/user.dto.ts
@@ -1,4 +1,3 @@
 export type UserDto = {
-  id: number
   email: string
 }
\ No newline at end of file
diff --git a/server/src/dto/user.session.dto.ts b/server/src/dto/user.session.dto.ts
index 7f702a9..73d2ad4 100644
--- a/server/src/dto/user.session.dto.ts
+++ b/server/src/dto/user.session.dto.ts
@@ -1,3 +1,3 @@
 type SessionDto = {
-  userEmail: string;
-}
\ No newline at end of file
+  token: string | null;
+};
diff --git a/server/src/index.ts b/server/src/index.ts
index 48e6ec4..f3cbdb3 100644
--- a/server/src/index.ts
+++ b/server/src/index.ts
@@ -1,9 +1,8 @@
-import * as cors from 'cors';
-import * as dotenv from 'dotenv';
-import * as express from 'express';
+import * as cors from "cors";
+import * as dotenv from "dotenv";
+import * as express from "express";
 import "reflect-metadata";
-import { ProjectRoutes, UserRoutes } from "./controller";
-import { TaskRoutes } from "./controller/task.controller";
+import { ProjectRoutes, UserRoutes, TaskRoutes } from "./controller";
 import { AppDataSource } from "./infra/dataSource";
 import { RedisConnection } from "./infra/redis";
 import { sessionMiddleware } from "./middleware/session.middleware";
@@ -12,28 +11,28 @@ dotenv.config();
 
 const app = express();
 
-app.use(cors())
+app.use(cors());
 app.use(express.json());
-app.use(sessionMiddleware)
+app.use(sessionMiddleware);
 
-app.use(UserRoutes)
-app.use(ProjectRoutes)
-app.use(TaskRoutes)
+app.use(UserRoutes);
+app.use(ProjectRoutes);
+app.use(TaskRoutes);
 
 const startApp = async () => {
-  console.log('[redis]: connecting')
-  await RedisConnection.connect()
-  console.log('[redis]: connected')
+  console.log("[redis]: connecting");
+  await RedisConnection.connect();
+  console.log("[redis]: connected");
 
-  console.log('[database]: connecting')
-  await AppDataSource.initialize()
-  console.log('[database]: connected')
+  console.log("[database]: connecting");
+  await AppDataSource.initialize();
+  console.log("[database]: connected");
 
   const port = process.env.PORT;
 
   app.listen(port, () => {
     console.log(`[server] is running at ${port} 🚀`);
   });
-}
+};
 
-startApp()
\ No newline at end of file
+startApp();