Add upload progress notification

Author: hubjac1

src/execute.ts

@@ -27,6 +27,8 @@ export default function execute<T>(request: httpclient.Request): Promise<httpcli
 		const xhr = new XMLHttpRequest()
 		xhr.withCredentials = request.withCredentials
 		xhr.timeout = request.timeout
+		xhr.upload.onloadstart = request.upload.onloadstart
+		xhr.upload.onprogress = request.upload.onprogress
 
 		// This internal method takes the xml request and retrieves headers from it
 		const parseResponseHeaders = function(request: XMLHttpRequest): httpclient.Headers {

src/index.ts

@@ -75,6 +75,10 @@ export namespace httpclient {
 	}
 	// Contains every parameter needed for a request as properties
 	export class Request {
+		upload: {
+			onprogress: { (event: Event): void }
+			onloadstart: { (event: Event): void }
+		}
 		url: string
 		contentType: string = 'application/json; charset=UTF-8'
 		// A way to declare an enumeration (can be anything because of the string but the IDE will suggest the 4 first verbs)
@@ -117,6 +121,10 @@ export namespace httpclient {
 			if (timeout) {
 				this.timeout = timeout
 			}
+			this.upload = {
+				onprogress: () => void 0,
+				onloadstart: () => void 0
+			}
 		}
 
 		// sets the properties (like a constructor for changes)