Accept decorator throws an error when response is handled manually (#4)

* ci: switch to main

* fix: do not write headers when headers are already sent

* chore: patch version

Author: jkoenig134

.github/workflows/publish.yml

@@ -2,7 +2,7 @@ name: Publish
 
 on:
   push:
-    branches: [master]
+    branches: [main]
 
 jobs:
   run-checks:

.github/workflows/test.yml

@@ -3,7 +3,7 @@ name: Test
 on:
   pull_request:
   push:
-    branches: [master]
+    branches: [main]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.ref_name }}

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@nmshd/typescript-rest",
-  "version": "3.1.1",
+  "version": "3.1.2",
   "description": "A Library to create RESTFul APIs with Typescript",
   "keywords": [
     "API",

package.json

@@ -75,7 +75,11 @@ export class ServiceInvoker {
         if (this.postProcessors.length) {
             await this.runPostProcessors(context);
         }
-        this.processResponseHeaders(context);
+
+        if (!context.response.headersSent) {
+            this.processResponseHeaders(context);
+        }
+
         await this.sendValue(result, context);
     }