budibase/packages/builder/src/api.js

import {
  createAPIClient,
  CookieUtils,
  Constants,
} from "@budibase/frontend-core"
import { store } from "./builderStore"
import { get } from "svelte/store"
import { auth } from "./stores/portal"

export const API = createAPIClient({
  attachHeaders: headers => {
    // Attach app ID header from store
    let appId = get(store).appId
    if (appId) {
      headers["x-budibase-app-id"] = appId
    }

    // Add csrf token if authenticated
    const user = get(auth).user
    if (user?.csrfToken) {
      headers["x-csrf-token"] = user.csrfToken
    }
  },

  onError: error => {
    const { url, message, status, method, handled } = error || {}

    // Log any errors that we haven't manually handled
    if (!handled) {
      console.error("Unhandled error from API client", error)
      return
    }

    // Log all errors to console
    console.warn(`[Builder] HTTP ${status} on ${method}:${url}\n\t${message}`)

    // Logout on 403's
    if (status === 403) {
      // Remove cookies
      CookieUtils.removeCookie(Constants.Cookies.Auth)

      // Reload after removing cookie, go to login
      if (!url.includes("self") && !url.includes("login")) {
        location.reload()
      }
    }
  },
})