posts.js
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const Post = require("../../models/Post");
const checkAuth = require("../../util/check-auth");
const { AuthenticationError, UserInputError } = require("apollo-server");
module.exports = {
Query: {
async getPosts() {
console.log("getPosts");
try {
const posts = await Post.find().sort({ createdAt: -1 });
return posts;
} catch (err) {
throw new Error(err);
}
},
async getPost(_, { postId }) {
console.log("getPost");
try {
const post = await Post.findById(postId);
if (post) {
return post;
} else {
throw new Error("Post not found");
}
} catch (err) {
throw new Error(err);
}
}
},
Mutation: {
async createPost(_, { body }, context) {
console.log("createPost");
const user = checkAuth(context);
if (body.trim() === "") {
throw new Error("Post body must not be empty");
}
const newPost = new Post({
body,
username: user.username,
createdAt: new Date().toISOString(),
user: user.id
});
const post = await newPost.save();
return post;
},
async deletePost(_, { postId }, context) {
const user = checkAuth(context);
try {
const post = await Post.findById(postId);
if (user.username === post.username) {
await post.delete();
return "Post deleted successfully";
} else {
throw new AuthenticationError("Action not allowed");
}
} catch (err) {
throw new Error(err);
}
},
async likePost(_, { postId }, context) {
const { username } = checkAuth(context);
const post = await Post.findById(postId);
if (post) {
if (post.likes.find(like => like.username === username)) {
post.likes = post.likes.filter(like => like.username !== username);
} else {
post.likes.push({
username,
createdAt: new Date().toISOString()
});
}
await post.save();
return post;
} else {
throw new UserInputError("Post not found");
}
}
}
};