بناء مشروع GraphQL API (الجزء 1)

mkdir graphql-blog-api\ncd graphql-blog-api\nnpm init -y\n\n# تثبيت التبعيات الأساسية\nnpm install apollo-server graphql\n\n# تثبيت قاعدة البيانات و ORM\nnpm install mongoose\n\n# تثبيت المصادقة\nnpm install bcryptjs jsonwebtoken\n\n# تثبيت الأدوات المساعدة\nnpm install dotenv validator

graphql-blog-api/\n├── src/\n│   ├── models/           # نماذج قاعدة البيانات\n│   │   ├── User.js\n│   │   ├── Post.js\n│   │   └── Comment.js\n│   ├── schema/           # مخطط GraphQL\n│   │   ├── typeDefs.js\n│   │   └── resolvers.js\n│   ├── utils/            # وظائف مساعدة\n│   │   ├── auth.js\n│   │   └── validators.js\n│   ├── context.js        # إعداد السياق\n│   └── index.js          # نقطة دخول الخادم\n├── .env                  # متغيرات البيئة\n└── package.json

// src/models/User.js\nconst mongoose = require('mongoose');\n\nconst userSchema = new mongoose.Schema({\n  username: {\n    type: String,\n    required: true,\n    unique: true,\n    trim: true,\n    minlength: 3\n  },\n  email: {\n    type: String,\n    required: true,\n    unique: true,\n    lowercase: true\n  },\n  password: {\n    type: String,\n    required: true,\n    minlength: 6\n  },\n  name: {\n    type: String,\n    required: true\n  },\n  avatar: String,\n  bio: String,\n  createdAt: {\n    type: Date,\n    default: Date.now\n  }\n});\n\nmodule.exports = mongoose.model('User', userSchema);

// src/models/Post.js\nconst mongoose = require('mongoose');\n\nconst postSchema = new mongoose.Schema({\n  title: {\n    type: String,\n    required: true,\n    trim: true\n  },\n  content: {\n    type: String,\n    required: true\n  },\n  excerpt: String,\n  author: {\n    type: mongoose.Schema.Types.ObjectId,\n    ref: 'User',\n    required: true\n  },\n  tags: [String],\n  published: {\n    type: Boolean,\n    default: false\n  },\n  createdAt: {\n    type: Date,\n    default: Date.now\n  },\n  updatedAt: {\n    type: Date,\n    default: Date.now\n  }\n});\n\nmodule.exports = mongoose.model('Post', postSchema);

// src/models/Comment.js\nconst mongoose = require('mongoose');\n\nconst commentSchema = new mongoose.Schema({\n  content: {\n    type: String,\n    required: true\n  },\n  author: {\n    type: mongoose.Schema.Types.ObjectId,\n    ref: 'User',\n    required: true\n  },\n  post: {\n    type: mongoose.Schema.Types.ObjectId,\n    ref: 'Post',\n    required: true\n  },\n  parentComment: {\n    type: mongoose.Schema.Types.ObjectId,\n    ref: 'Comment'\n  },\n  createdAt: {\n    type: Date,\n    default: Date.now\n  }\n});\n\nmodule.exports = mongoose.model('Comment', commentSchema);

// src/schema/typeDefs.js\nconst { gql } = require('apollo-server');\n\nconst typeDefs = gql`\n  type User {\n    id: ID!\n    username: String!\n    email: String!\n    name: String!\n    avatar: String\n    bio: String\n    posts: [Post!]!\n    createdAt: String!\n  }\n\n  type Post {\n    id: ID!\n    title: String!\n    content: String!\n    excerpt: String\n    author: User!\n    tags: [String!]!\n    published: Boolean!\n    comments: [Comment!]!\n    createdAt: String!\n    updatedAt: String!\n  }\n\n  type Comment {\n    id: ID!\n    content: String!\n    author: User!\n    post: Post!\n    parentComment: Comment\n    replies: [Comment!]!\n    createdAt: String!\n  }\n\n  type AuthPayload {\n    token: String!\n    user: User!\n  }\n\n  type Query {\n    # استعلامات المستخدم\n    me: User\n    user(id: ID!): User\n    users: [User!]!\n\n    # استعلامات المنشورات\n    post(id: ID!): Post\n    posts(limit: Int, offset: Int): [Post!]!\n    postsByUser(userId: ID!): [Post!]!\n    searchPosts(query: String!): [Post!]!\n\n    # استعلامات التعليقات\n    comments(postId: ID!): [Comment!]!\n  }\n\n  type Mutation {\n    # المصادقة\n    register(username: String!, email: String!, password: String!, name: String!): AuthPayload!\n    login(email: String!, password: String!): AuthPayload!\n\n    # طفرات المستخدم\n    updateProfile(name: String, avatar: String, bio: String): User!\n\n    # طفرات المنشورات\n    createPost(title: String!, content: String!, excerpt: String, tags: [String!]): Post!\n    updatePost(id: ID!, title: String, content: String, excerpt: String, tags: [String!]): Post!\n    deletePost(id: ID!): Boolean!\n    publishPost(id: ID!): Post!\n\n    # طفرات التعليقات\n    createComment(postId: ID!, content: String!, parentCommentId: ID): Comment!\n    deleteComment(id: ID!): Boolean!\n  }\n`;\n\nmodule.exports = typeDefs;

// src/utils/auth.js\nconst jwt = require('jsonwebtoken');\nconst bcrypt = require('bcryptjs');\n\nconst JWT_SECRET = process.env.JWT_SECRET || 'your-secret-key';\n\n// توليد رمز JWT\nfunction generateToken(userId) {\n  return jwt.sign({ userId }, JWT_SECRET, { expiresIn: '7d' });\n}\n\n// التحقق من رمز JWT\nfunction verifyToken(token) {\n  try {\n    return jwt.verify(token, JWT_SECRET);\n  } catch (error) {\n    return null;\n  }\n}\n\n// تشفير كلمة المرور\nasync function hashPassword(password) {\n  return bcrypt.hash(password, 10);\n}\n\n// مقارنة كلمة المرور\nasync function comparePassword(password, hashedPassword) {\n  return bcrypt.compare(password, hashedPassword);\n}\n\nmodule.exports = {\n  generateToken,\n  verifyToken,\n  hashPassword,\n  comparePassword\n};

// src/context.js\nconst { verifyToken } = require('./utils/auth');\nconst User = require('./models/User');\n\nasync function context({ req }) {\n  // الحصول على الرمز من العناوين\n  const token = req.headers.authorization?.replace('Bearer ', '');\n  \n  if (!token) {\n    return { user: null };\n  }\n\n  // التحقق من الرمز والحصول على المستخدم\n  const decoded = verifyToken(token);\n  \n  if (!decoded) {\n    return { user: null };\n  }\n\n  try {\n    const user = await User.findById(decoded.userId);\n    return { user };\n  } catch (error) {\n    return { user: null };\n  }\n}\n\nmodule.exports = context;

// src/schema/resolvers.js\nconst { AuthenticationError, UserInputError } = require('apollo-server');\nconst User = require('../models/User');\nconst Post = require('../models/Post');\nconst Comment = require('../models/Comment');\nconst { generateToken, hashPassword, comparePassword } = require('../utils/auth');\n\nconst resolvers = {\n  Query: {\n    me: async (_, __, { user }) => {\n      if (!user) {\n        throw new AuthenticationError('غير مصادق عليه');\n      }\n      return user;\n    },\n\n    user: async (_, { id }) => {\n      return User.findById(id);\n    },\n\n    users: async () => {\n      return User.find();\n    }\n  },\n\n  Mutation: {\n    register: async (_, { username, email, password, name }) => {\n      // التحقق من وجود المستخدم بالفعل\n      const existingUser = await User.findOne({\n        $or: [{ email }, { username }]\n      });\n\n      if (existingUser) {\n        throw new UserInputError('المستخدم موجود بالفعل');\n      }\n\n      // تشفير كلمة المرور\n      const hashedPassword = await hashPassword(password);\n\n      // إنشاء المستخدم\n      const user = await User.create({\n        username,\n        email,\n        password: hashedPassword,\n        name\n      });\n\n      // توليد الرمز\n      const token = generateToken(user.id);\n\n      return { token, user };\n    },\n\n    login: async (_, { email, password }) => {\n      // العثور على المستخدم\n      const user = await User.findOne({ email });\n\n      if (!user) {\n        throw new AuthenticationError('بيانات اعتماد غير صالحة');\n      }\n\n      // التحقق من كلمة المرور\n      const valid = await comparePassword(password, user.password);\n\n      if (!valid) {\n        throw new AuthenticationError('بيانات اعتماد غير صالحة');\n      }\n\n      // توليد الرمز\n      const token = generateToken(user.id);\n\n      return { token, user };\n    }\n  },\n\n  User: {\n    posts: async (user) => {\n      return Post.find({ author: user.id });\n    }\n  }\n};\n\nmodule.exports = resolvers;

# .env\nMONGODB_URI=mongodb://localhost:27017/graphql-blog\nJWT_SECRET=your-super-secret-jwt-key-change-in-production\nPORT=4000