0.1.8: Adding support for streaming COMET-style hanging GETs to Simpl…

…eWebRequest
microsoft · Aug 2, 2018 · 43f7349 · 43f7349
1 parent f7e57ef
commit 43f7349
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "simplerestclients",
-  "version": "0.1.7",
+  "version": "0.1.8",
   "description": "A library of components for accessing RESTful services with javascript/typescript.",
   "author": "David de Regt <[email protected]>",
   "scripts": {

diff --git a/src/SimpleWebRequest.ts b/src/SimpleWebRequest.ts
@@ -111,6 +111,8 @@ export interface WebRequestOptions {
     // Overrides all other headers.
     augmentHeaders?: Headers;
 
+    streamingDownloadProgress?: (responseText: string) => void;
+
     onProgress?: (progressEvent: XMLHttpRequestProgressEvent) => void;
 
     customErrorHandler?: (webRequest: SimpleWebRequestBase, errorResponse: WebErrorResponse) => ErrorHandlingType;
@@ -274,6 +276,10 @@ export abstract class SimpleWebRequestBase<TOptions extends WebRequestOptions =
                 onLoadErrorSupportStatus = FeatureSupportStatus.Detecting;
             }
             this._xhr.onreadystatechange = (e) => {
+                if (this._xhr!!!.readyState === 3 && this._options.streamingDownloadProgress) {
+                    this._options.streamingDownloadProgress(this._xhr!!!.responseText);
+                }
+
                 if (this._xhr!!!.readyState !== 4) {
                     // Wait for it to finish
                     return;