export async function fetch_from_api(endpoint_name, params, callback) {
var api_url = generate_nominatim_api_url(endpoint_name, params);
- // For the test suite:
- // If httpbin_status URL parameter is set we call https://httpbin.org/#/Status_codes
- var tmp_params = new URLSearchParams(window.location.search);
- if (tmp_params && tmp_params.get('httpbin_status')) {
- api_url = 'https://httpbin.org/status/' + parseInt(tmp_params.get('httpbin_status'), 10);
- }
+ const mock_api_error = (new URLSearchParams(window.location.search)).get('mock_api_error');
api_request_progress('start');
if (endpoint_name !== 'status') last_api_request_url_store.set(null);
try {
await fetch(api_url, { headers: Nominatim_Config.Nominatim_API_Endpoint_Headers || {} })
.then(async (response) => {
- if (!((response.status >= 200 && response.status < 300) || response.status === 404)) {
+ if ((!((response.status >= 200 && response.status < 300) || response.status === 404))
+ || mock_api_error === 'fetch'
+ ) {
error_store.set(`Error fetching data from ${api_url} (${response.statusText})`);
return undefined;
}
// errors.
var data;
try {
- data = await response.json();
+ if (mock_api_error === 'parse') {
+ data = JSON.parse('{');
+ } else {
+ data = await response.json();
+ }
} catch (err) {
// e.g. 'JSON.parse: unexpected non-whitespace character after JSON data at line 1'
error_store.set(`Error parsing JSON data from ${api_url} (${err})`);