34 lines
1.6 KiB
TypeScript
34 lines
1.6 KiB
TypeScript
export type RequestResult = { body: string; status: number };
|
|
|
|
// Special implementation using the legacy XMLHttpRequest API that provides callbacks to get:
|
|
// - Calls with the percent progress uploading the request to the server
|
|
// - Calls when downloading the result from the server, after the server has begun streaming back the response data
|
|
// It returns a tuple of the promise as well as the XHR which can be used to call the `.abort()` method on it.
|
|
export function requestWithUploadDownloadProgress(
|
|
url: string,
|
|
method: "GET" | "HEAD" | "POST" | "PUT" | "DELETE" | "CONNECT" | "OPTIONS" | "TRACE" | "PATCH",
|
|
body: string,
|
|
uploadProgress: (progress: number) => void,
|
|
downloadOccurring: () => void,
|
|
): [Promise<RequestResult>, XMLHttpRequest | undefined] {
|
|
let xhrValue: XMLHttpRequest | undefined;
|
|
const promise = new Promise<RequestResult>((resolve, reject) => {
|
|
const xhr = new XMLHttpRequest();
|
|
xhr.upload.addEventListener("progress", (e) => uploadProgress(e.loaded / e.total));
|
|
xhr.addEventListener("progress", () => downloadOccurring());
|
|
xhr.addEventListener("load", () => resolve({ status: xhr.status, body: xhr.responseText }));
|
|
xhr.addEventListener("abort", () => resolve({ status: xhr.status, body: xhr.responseText }));
|
|
xhr.addEventListener("error", () => reject(new Error("Request error")));
|
|
xhr.open(method, url, true);
|
|
xhr.setRequestHeader("accept", "*/*");
|
|
xhr.setRequestHeader("accept-language", "en-US,en;q=0.9");
|
|
xhr.setRequestHeader("content-type", "application/json");
|
|
|
|
xhrValue = xhr;
|
|
|
|
xhr.send(body);
|
|
});
|
|
|
|
return [promise, xhrValue];
|
|
}
|