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+//Светофор
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+const delay = ms => new Promise(ok => setTimeout(() => ok(ms), ms))
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+
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+const divLights = document.getElementById('divTraffic')
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+const btn = document.getElementById('btn')
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+
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+async function trafficLight() {
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+ while (true) {
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+ // //включаем зеленый
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+ divLights.classList.remove('red')
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+ divLights.classList.add('green')
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+ await delay(3000)
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+
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+ divLights.classList.remove('green')
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+ divLights.classList.add('yellow')
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+ await delay(1000)
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+
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+ divLights.classList.remove('yellow')
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+ divLights.classList.add('red')
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+ await delay(3000)
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+
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+ }
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+}
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+//trafficLight()
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+
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+//Stage 2
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+async function trafficLightUniversal(divLights, greenRedTime = 3000, yellowTime = 1000) {
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+ while (true) {
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+ // //включаем зеленый
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+ divLights.classList.remove('red')
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+ divLights.classList.add('green')
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+ await delay(greenRedTime)
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+
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+ divLights.classList.remove('green')
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+ divLights.classList.add('yellow')
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+ await delay(yellowTime)
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+
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+ divLights.classList.remove('yellow')
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+ divLights.classList.add('red')
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+ await delay(greenRedTime)
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+
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+
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+ }
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+}
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+//trafficLight(divLights)
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+async function domEventPromise(btn, eventName) {
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+ return new Promise((resolve) => {
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+ btn.addEventListener(eventName, (e) =>
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+ resolve(e)
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+ )
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+ btn.removeEventListener(eventName, (e) =>
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+ resolve(e))
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+
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+ })
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+
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+}
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+//domEventPromise(btn, 'click').then(e => console.log('event click happens', e))
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+//domEventPromise(btn, 'mouseover').then(e => console.log('event mouseover happens', e))
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+async function disabledBtn(btn, btnTime) {
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+
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+ btn.disabled = true
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+ btn.classList.add('disabled')
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+
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+ await delay(btnTime)
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+ btn.disabled = false
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+ btn.classList.remove('disabled')
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+}
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+
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+async function PedestrianTrafficLight(divLights, greeTime = 5000, redTime = 45000, btnTime = 2000) {
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+
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+ while (true) {
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+ divLights.classList.remove('red')
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+ divLights.classList.add('green')
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+ await Promise.race([delay(greeTime), domEventPromise((btn), 'click').then(e => {
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+ disabledBtn(e.target, btnTime)
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+ })])
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+
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+ divLights.classList.remove('green')
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+ divLights.classList.add('red')
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+ await Promise.race([delay(redTime), domEventPromise((btn), 'click').then(e =>
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+ disabledBtn(e.target, btnTime)
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+ )])
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+ }
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+}
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+//PedestrianTrafficLight(divLights)
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+//count - количество повторов
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+//parallel - количество одновременных запросов/промисов в одном повторе
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+//getPromise - функция, которая умеет вернуть нужный Вам промис для тестирования скорости его работы
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+async function speedtest(getPromise, count, parallel = 1) {
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+ const start = new Date().getTime();
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+ try {
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+ let promiseArray = []
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+ for (let countPromise = 0; countPromise < count; countPromise++) {
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+ for (let paralelPromise = 0; paralelPromise < parallel; paralelPromise++) {
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+ promiseArray.push(getPromise())
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+ }
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+
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+ console.log(promiseArray)
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+ await Promise.all(promiseArray)
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+ promiseArray.length = 0
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+ }
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+
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+ } catch (error) {
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+ console.log(new Error(error))
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+ }
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+ const end = new Date().getTime();
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+ let durationTime = (end - start)
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+ let querySpeedTime = (count / durationTime)
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+ let queryDurationTime = (durationTime / count)
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+ let parallelSpeedTime = ((parallel * count) / durationTime)
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+ let parallelDurationTime = (durationTime / (parallel * count))
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+ return {
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+ duration: durationTime,
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+ querySpeed: querySpeedTime,
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+ queryDuration: queryDurationTime,
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+ parallelSpeed: parallelSpeedTime,
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+ parallelDuration: parallelDurationTime
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+ }
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+
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+}
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+//speedtest(() => delay(1000), 10, 10).then(result => console.log(result))
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+// {duration: 10000,
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+// querySpeed: 0.001, //1 тысячная запроса за миллисекунду
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+// queryDuration: 1000, //1000 миллисекунд на один реальный запрос в среднем
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+// parallelSpeed: 0.01 // 100 запросов за 10000 миллисекунд
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+// parallelDuration: 100 // 100 запросов за 10000 миллисекунд
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+//speedtest(() => fetch('http://swapi.dev/api/people/1').then(res => res.json()), 10, 5)
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+
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+
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+const getGQL = url =>
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+ (query, variables) => fetch(url, {
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+ //метод
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+ method: 'POST',
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+ headers: {
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+ //заголовок content-type
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+ "Content-Type": "application/json",
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+ ...(localStorage.authToken ? { "Authorization": "Bearer " + localStorage.authToken } : {})
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+ },
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+ body: JSON.stringify({ query, variables })
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+ //body с ключами query и variables
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+ }).then(res => res.json())
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+ .then(data => {
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+ if (data.data) {
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+ return Object.values(data.data)[0]
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+ } else throw new Error(JSON.stringify(data.errors))
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+ })
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+
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+//const gql = getGQL('http://shop-roles.asmer.fs.a-level.com.ua/graphql');
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+const backendURL = 'http://shop-roles.asmer.fs.a-level.com.ua'
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+
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+const gql = getGQL(backendURL + '/graphql')
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+ //написать тестовых запросов:
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+ //логин
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+async function queryLogin() {
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+ return await gql(` query login($login:String, $password:String){
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+ login(login:$login, password:$password)
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+ } `, { login: "LenaKyrylenko", password: "Litana13lank" }).then(res => console.log("login:", res))
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+}
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+queryLogin()
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+ //2 вариант
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+async function gqlLogin(login, password) {
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+ return await gql(` query login($login:String, $password:String){
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+ login(login:$login, password:$password)
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+ } `, { login: login, password: password }).then(res => console.log("login:", res))
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+}
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+gqlLogin("LenaKyrylenko", "Litana13lank")
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+ //регистрация
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+async function mutationrRegister() {
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+ return await gql(`mutation register($login: String, $password: String) {
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+ UserUpsert(user: {login: $login, password: $password, nick: $login}) {
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+ _id login
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+ }
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+ }`, { login: "Lena", password: "12345" }).then(res => console.log(res))
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+}
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+//mutationrRegister()
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+
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+//все категории
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+async function queryAllCats() {
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+ return await gql(`query allCats {
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+ CategoryFind(query: "[{}]"){
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+ _id name goods { _id name description price images{url}}}
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+ }`).then(res => console.log("All categories:", res))
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+}
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+queryAllCats()
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+ //категория по id
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+async function queryCatById(idCategory) {
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+ return await gql(`query catById($q: String){
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+ CategoryFindOne(query: $q){
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+ _id name goods {
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+ _id name price images {
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+ url
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+ }
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+ }
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+ }
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+}`, { q: idCategory }).then(res => console.log("Category by id:", res))
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+}
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+let categoryId = "[{\"_id\": \"5dc458985df9d670df48cc47\"}]"
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+queryCatById(categoryId)
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+ //товар по id
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+async function queryGoodById(idGood) {
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+ return await gql(`query goodById($good: String){
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+ GoodFindOne(query: $good){
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+ _id name description price
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+ categories{_id name owner{_id login nick}}images{url}}
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+ }`, { good: idGood }).then(res => console.log("Good by id:", res))
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+ //.then(myToken => localStorage.authToken = myToken)
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+}
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+let goodId = "[{\"_id\": \"5e1f396856d8f720513e6cae\"}]"
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+queryGoodById(goodId)
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+
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+//console.log("localStorage = ", localStorage)
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