add some changes

javascript/hw.js

@@ -1 +1,111 @@
 'use strict';
+
+const getGQL = (url) => async (query, variables) => {
+	try {
+		const token = localStorage.getItem('token');
+		const Authorization = token ? `Bearer ${token}` : '';
+		const res = await fetch(url, {
+			method: 'POST',
+			headers: {
+				'Content-Type': 'application/json',
+				Authorization,
+			},
+			body: JSON.stringify({ query, variables }),
+		});
+		return res.json();
+	} catch (e) {
+		console.error(e);
+	}
+};
+
+const gql = getGQL('http://shop-roles.asmer.fs.a-level.com.ua/graphql');
+
+const loginGQL = async (login, password) => {
+	try {
+		const { data } = await gql(
+			`
+query log($login:String, $password:String){
+        login(login:$login, password:$password)
+    }`,
+			{ login, password }
+		);
+		const token = data.login;
+		if (token) localStorage.setItem('token', token);
+		return token;
+	} catch (e) {
+		console.error(e);
+	}
+};
+
+const registerGQL = async (login, password) => {
+	try {
+		const { data } = await gql(
+			`mutation register($login:String, $password:String){
+        UserUpsert(user: {login:$login, password:$password}){
+			_id,login
+		}
+    }`,
+			{ login, password }
+		);
+		return data.UserUpsert;
+	} catch (e) {
+		console.log(e);
+	}
+};
+
+const categoriesGQL = async () => {
+	try {
+		const { data } = await gql(
+			`query allCategories{
+		CategoryFind(query:"[{}]"){
+          _id,
+          name,
+		  createdAt
+		}
+	}`,
+			{}
+		);
+		return data.CategoryFind;
+	} catch (e) {
+		console.log(e);
+	}
+};
+
+const categoryById = async (_id) => {
+	try {
+		const data = await gql(
+			`query categoryById($id:String){
+		CategoryFindOne(query:$id){
+			name
+		}
+	}`,
+			{ id: JSON.stringify([{ _id }]) }
+		);
+		return data.data.CategoryFindOne;
+	} catch (e) {
+		console.error(e);
+	}
+};
+
+const goodById = async (_id) => {
+	try {
+		const data = await gql(
+			`query GoodFindOne($id:String){
+		CategoryFindOne(query:$id){
+			name,
+			_id
+		}
+	}`,
+			{ id: JSON.stringify([{ _id }]) }
+		);
+		return data.data.CategoryFindOne;
+	} catch (e) {
+		console.error(e);
+	}
+};
+
+console.log(await loginGQL('test2021121', 'test2021121'), 'loginGQL');
+console.log(await registerGQL('1234332121', '123'), 'registerGQL');
+console.log(await categoriesGQL(), 'categoriesGQL');
+console.log(await categoryById('5dc458985df9d670df48cc47'), 'categoryById');
+console.log(await goodById('5dc458985df9d670df48cc47'), 'goodById');