Add ability to adjust the token on the homeserver API.

src/matrix/Session.js

@@ -1094,6 +1094,15 @@ export class Session {
             return body.room_id;
         });
     }
+
+    /**
+     * Updates the access token used by the API. Does NOT
+     * change the token in storage.
+     * @param {string} token 
+     */
+    updateAccessToken(token) {
+        this._hsApi.updateAccessToken(token);
+    }
 }
 
 import {FeatureSet} from "../features";

src/matrix/net/HomeServerApi.ts

@@ -46,7 +46,7 @@ type BaseRequestOptions = {
 
 export class HomeServerApi {
     private readonly _homeserver: string;
-    private readonly _accessToken: string;
+    private _accessToken: string;
     private readonly _requestFn: RequestFunction;
     private readonly _reconnector: Reconnector;
 
@@ -125,6 +125,14 @@ export class HomeServerApi {
         return this._authedRequest("GET", this._url(csPath, options?.prefix || CS_R0_PREFIX), queryParams, body, options);
     }
 
+    /**
+     * Update the access token used by the API.
+     * @param token 
+     */
+    public updateAccessToken(token: string) {
+        this._accessToken = token;
+    }
+
     sync(since: string, filter: string, timeout: number, options?: BaseRequestOptions): IHomeServerRequest {
         return this._get("/sync", {since, timeout, filter}, undefined, options);
     }