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Diffstat (limited to 'webAO/services')
| -rw-r--r-- | webAO/services/request.js | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/webAO/services/request.js b/webAO/services/request.js new file mode 100644 index 0000000..f21f881 --- /dev/null +++ b/webAO/services/request.js @@ -0,0 +1,34 @@ +/** + * Make a GET request for a specific URI. + * @param {string} url the URI to be requested + * @returns response data + * @throws {Error} if status code is not 2xx, or a network error occurs + */ + const request = async url => { + return new Promise((resolve, reject) => { + const xhr = new XMLHttpRequest(); + xhr.responseType = 'text'; + xhr.addEventListener('error', () => { + const err = new Error(`Request for ${url} failed: ${xhr.statusText}`); + err.code = xhr.status; + reject(err); + }); + xhr.addEventListener('abort', () => { + const err = new Error(`Request for ${url} was aborted!`); + err.code = xhr.status; + reject(err); + }); + xhr.addEventListener('load', () => { + if (xhr.status < 200 || xhr.status >= 300) { + const err = new Error(`Request for ${url} failed with status code ${xhr.status}`); + err.code = xhr.status; + reject(err); + } else { + resolve(xhr.response); + } + }); + xhr.open('GET', url, true); + xhr.send(); + }); + } + export default request
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