56 lines
1.5 KiB
TypeScript
56 lines
1.5 KiB
TypeScript
export interface Response {
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status: number,
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text: string,
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json: () => Promise<any>,
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}
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export interface Options {
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body: FormData|string,
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headers?: any,
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onUploadProgress?: (ev: ProgressEvent<XMLHttpRequestEventTarget>) => any,
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}
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const request = async (
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method: string,
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url: string,
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options: Options
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): Promise<Response> => {
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return new Promise((resolve, reject) => {
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const xhr = new window.XMLHttpRequest()
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xhr.open(method, url, true)
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xhr.withCredentials = true
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for (const k in options.headers || {}) {
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xhr.setRequestHeader(k, options.headers[k])
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}
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xhr.addEventListener('load', function (ev: ProgressEvent<XMLHttpRequestEventTarget>
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) {
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resolve({
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status: this.status,
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text: this.responseText,
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json: async () => JSON.parse(this.responseText),
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})
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})
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xhr.addEventListener('error', function (ev: ProgressEvent<XMLHttpRequestEventTarget>) {
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reject(new Error('xhr error'))
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})
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if (xhr.upload && options.onUploadProgress) {
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xhr.upload.addEventListener('progress', function (ev: ProgressEvent<XMLHttpRequestEventTarget>) {
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// typescript complains without this extra check
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if (options.onUploadProgress) {
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options.onUploadProgress(ev)
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}
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})
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}
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xhr.send(options.body)
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})
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}
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export default {
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request,
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get: (url: string, options: any): Promise<Response> => {
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return request('get', url, options)
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},
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post: (url: string, options: any): Promise<Response> => {
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return request('post', url, options)
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},
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}
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