feat: GraphQL resolver for comment entity

Author: dhyeythumar

src/resolvers/Comment.js

@@ -0,0 +1,5 @@
+export default {
+ commentId: (parent, args, context) => {
+ return parent.id;
+ },
+};

src/resolvers/Post.js

@@ -1,5 +1,12 @@
+import { sort } from "../utils/common";
+import { fetchPostComments } from "../utils/fetchPostData";
+
 export default {
- postId: async (parent, args, context) => {
+ postId: (parent, args, context) => {
  return parent.id;
  },
+ comments: async (parent, args, context) => {
+ const comments = await fetchPostComments(parent.id);
+ return sort(comments, "asc");
+ },
 };

src/resolvers/Query.js

@@ -1,6 +1,11 @@
 import { sort } from "../utils/common";
-import { fetchUsers, fetchUser } from "../utils/fetchUserData";
-import { fetchPosts, fetchPost, fetchUserPosts } from "../utils/fetchPostData";
+import { fetchUsers, fetchUser, fetchUserPosts } from "../utils/fetchUserData";
+import {
+ fetchPosts,
+ fetchPost,
+ fetchPostComments,
+} from "../utils/fetchPostData";
+import { fetchComments, fetchComment } from "../utils/fetchCommentData";
 
 // 'parent' parameter carries the return value of the previous resolver execution level
 export default {
@@ -45,4 +50,25 @@ export default {
  throw new Error(err);
  }
  },
+ comments: async (parent, args, context) => {
+ try {
+ let comments;
+ if (args.postId) comments = await fetchPostComments(args.postId);
+ else comments = await fetchComments();
+
+ return sort(comments, args.sort ? args.sort : "asc");
+ } catch (err) {
+ console.log(err);
+ throw new Error(err);
+ }
+ },
+ comment: async (parent, args, context) => {
+ try {
+ const comment = await fetchComment(args.commentId);
+ return comment;
+ } catch (err) {
+ console.log(err);
+ throw new Error(err);
+ }
+ },
 };

src/resolvers/index.js

@@ -2,10 +2,12 @@ import Query from "./Query";
 import Mutation from "./Mutation";
 import User from "./User";
 import Post from "./Post";
+import Comment from "./Comment";
 
 export default {
  Query,
  Mutation,
  User,
  Post,
+ Comment,
 };

src/utils/fetchCommentData.js

@@ -0,0 +1,23 @@
+import { jsonPlaceholder } from "../base-axios";
+
+//* fetch all Comments
+export const fetchComments = async () => {
+ try {
+ const comments = await jsonPlaceholder.get(`/comments`);
+ return comments.data;
+ } catch (err) {
+ console.log(err);
+ throw new Error(err);
+ }
+};
+
+//* fetch a single Comment
+export const fetchComment = async (commentId) => {
+ try {
+ const comment = await jsonPlaceholder.get(`/comments/${commentId}`);
+ return comment.data;
+ } catch (err) {
+ console.log(err);
+ throw new Error(err);
+ }
+};

src/utils/fetchPostData.js

@@ -22,12 +22,12 @@ export const fetchPost = async (postId) => {
  }
 };
 
-//* fetch User's all Posts
+//* fetch Post's all Comments
 //! returns [] if no data
-export const fetchUserPosts = async (userId) => {
+export const fetchPostComments = async (postId) => {
  try {
- const post = await jsonPlaceholder.get(`/posts?userId=${userId}`);
- return post.data;
+ const comments = await jsonPlaceholder.get(`/posts/${postId}/comments`);
+ return comments.data;
  } catch (err) {
  console.log(err);
  throw new Error(err);