Files
automatisch/packages/backend/src/helpers/http-client/index.js

66 lines
1.9 KiB
JavaScript

import HttpError from '../../errors/http.js';
import axios from '../axios-with-proxy.js';
// Mutates the `toInstance` by copying the request interceptors from `fromInstance`
const copyRequestInterceptors = (fromInstance, toInstance) => {
// Copy request interceptors
fromInstance.interceptors.request.forEach(interceptor => {
toInstance.interceptors.request.use(
interceptor.fulfilled,
interceptor.rejected,
{
synchronous: interceptor.synchronous,
runWhen: interceptor.runWhen
}
);
});
}
export default function createHttpClient({ $, baseURL, beforeRequest = [] }) {
const instance = axios.create({
baseURL,
});
// 1. apply the beforeRequest functions from the app
instance.interceptors.request.use((requestConfig) => {
const result = beforeRequest.reduce((newConfig, beforeRequestFunc) => {
return beforeRequestFunc($, newConfig);
}, requestConfig);
return result;
});
// 2. inherit the request inceptors from the parent instance
copyRequestInterceptors(axios, instance);
instance.interceptors.response.use(
(response) => response,
async (error) => {
const { config, response } = error;
// Do not destructure `status` from `error.response` because it might not exist
const status = response?.status;
if (
// TODO: provide a `shouldRefreshToken` function in the app
(status === 401 || status === 403) &&
$.app.auth &&
$.app.auth.refreshToken &&
!$.app.auth.isRefreshTokenRequested
) {
$.app.auth.isRefreshTokenRequested = true;
await $.app.auth.refreshToken($);
// retry the previous request before the expired token error
const newResponse = await instance.request(config);
$.app.auth.isRefreshTokenRequested = false;
return newResponse;
}
throw new HttpError(error);
}
);
return instance;
}