Create user

src/services/FindUserSocialService.ts

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+import { getRepository } from 'typeorm';
+
+import AppError from '../errors/AppError';
+
+import User from '../models/User';
+import Social from '../models/Social';
+
+class FindUserSocialService {
+  public async execute(id_user: string): Promise<Social> {
+    const usersRepository = getRepository(User);
+    const socialRepository = getRepository(Social);
+
+    const user = await usersRepository.findOne({
+      where: { id_user }
+    });
+
+    if (!user) {
+      // TODO, fazer no front um tratamento para isso
+      throw new AppError('User does not exist.');
+    };
+
+    const social = await socialRepository.findOne({
+      where: { user },
+    });
+
+    if (!social) {
+      // TODO, lembrar
+      // muito importate colocar o código HTTP de erro
+      throw new AppError('User does not have social information.', 200);
+    };
+
+    return social;
+  }
+}
+
+export default FindUserSocialService;