Fix client headers

src/api.ts

@@ -136,7 +136,7 @@ export class TribufuApi {
      * Get the default headers for the Tribufu API.
      * @returns HeaderMap
      */
-    private static defaultHeaders(): HttpHeaders {
+    protected static defaultHeaders(): HttpHeaders {
         const headers = new HttpHeaders();
         headers.set("X-Tribufu-Language", "javascript");
         headers.set("X-Tribufu-Version", TRIBUFU_VERSION);

src/client.ts

@@ -126,6 +126,22 @@ export class TribufuClient extends TribufuApi {
         return headers;
     }
 
+    /**
+     * Get current headers with the api key or access token.
+     * @returns HeaderMap
+     */
+    protected override getHeaders(): HttpHeaders {
+        let headers = TribufuClient.defaultHeaders();
+        headers.set("Authorization", `Basic ${Buffer.from(`${this.clientId}:${this.clientSecret}`, "binary").toString("base64")}`);
+
+        if (this.options.accessToken) {
+            headers.set("Authorization", `Bearer ${this.options.accessToken}`);
+            return headers;
+        }
+
+        return headers;
+    }
+
     /**
      * Get the client id.
      * @returns string