123 lines
3.0 KiB
JavaScript
123 lines
3.0 KiB
JavaScript
import _ from 'lodash';
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import { browserHistory } from 'react-router';
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import stores from 'stores';
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import constants from '../constants';
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const isIterable = object =>
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object != null && typeof object[Symbol.iterator] === 'function';
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const cacheResponse = (data) => {
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if (isIterable(data)) {
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stores.cache.cacheList(data);
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} else {
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stores.cache.cacheWithId(data.id, data);
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}
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};
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class ApiClient {
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constructor(options = {}) {
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this.baseUrl = options.baseUrl || constants.API_BASE_URL;
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this.userAgent = options.userAgent || constants.API_USER_AGENT;
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}
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fetch = (path, method, data, options = {}) => {
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let body;
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let modifiedPath;
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if (method === 'GET') {
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modifiedPath = `${path}?${this.constructQueryString(data)}`;
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} else if (method === 'POST' || method === 'PUT') {
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body = JSON.stringify(data);
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}
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// Construct headers
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const headers = new Headers({
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Accept: 'application/json',
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'Content-Type': 'application/json',
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'User-Agent': this.userAgent,
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});
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if (stores.user.authenticated) {
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headers.set('Authorization', `Bearer ${stores.user.token}`);
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}
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// Construct request
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const request = fetch(this.baseUrl + (modifiedPath || path), {
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method,
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body,
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headers,
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redirect: 'follow',
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});
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// Handle request promises and return a new promise
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return new Promise((resolve, reject) => {
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request
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.then((response) => {
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// Handle successful responses
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if (response.status >= 200 && response.status < 300) {
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return response;
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}
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// Handle 404
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if (response.status === 404) {
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return browserHistory.push('/404');
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}
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// Handle 401, log out user
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if (response.status === 401) {
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stores.user.logout();
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}
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// Handle failed responses
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let error;
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try {
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// Expect API to return JSON
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error = JSON.parse(response);
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} catch (e) {
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// Expect call to fail without JSON response
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error = { error: response.statusText };
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}
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error.statusCode = response.status;
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error.response = response;
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return reject(error);
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})
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.then((response) => {
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return response.json();
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})
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.then((json) => {
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// Cache responses
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if (options.cache) {
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cacheResponse(json.data);
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}
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resolve(json);
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})
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.catch(() => {
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reject({ error: 'Unknown error' });
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});
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});
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}
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get = (path, data, options) => {
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return this.fetch(path, 'GET', data, options);
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}
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post = (path, data, options) => {
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return this.fetch(path, 'POST', data, options);
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}
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// Helpers
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constructQueryString = (data) => {
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return _.map(data, (v, k) => {
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return `${encodeURIComponent(k)}=${encodeURIComponent(v)}`;
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}).join('&');
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};
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}
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export default ApiClient;
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// In case you don't want to always initiate, just import with `import { client } ...`
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const client = new ApiClient();
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export { client, cacheResponse };
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