Merge pull request #15 from exaroton/content-type

Fix setting content type header in Request.getBody()

Author: JulianVennen

src/Client.js

@@ -113,16 +113,18 @@ export default class Client {
         /** @type {RequestInit} */
         const options = {
             method: request.method,
-            headers: Object.assign({
-                "authorization": "Bearer " + this.#apiToken,
-                "user-agent": this.#userAgent
-            }, request.headers)
         }
 
         if (request.hasBody()) {
             options.body = request.getBody();
         }
 
+        // Set headers after body to allow content-type overrides
+        options.headers = Object.assign({
+            "authorization": "Bearer " + this.#apiToken,
+            "user-agent": this.#userAgent
+        }, request.headers);
+
         let response;
         try {
             response = await fetch(url, options);