fix(issue-640): adding headers in task request samples (#642)

* fix: adding headers in task request

refactor: updating readme with same fix

* refactor: lint fixes

* fix: switch content-type expected

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Averi Kitsch <[email protected]>

Author: 3 people

cloud-tasks/createHttpTask.js

@@ -51,6 +51,9 @@ function main(
 
     const task = {
       httpRequest: {
+        headers: {
+          'Content-Type': 'text/plain',
+        },
         httpMethod: 'POST',
         url,
       },

cloud-tasks/createHttpTaskWithToken.js

@@ -51,6 +51,9 @@ function main(
 
     const task = {
       httpRequest: {
+        headers: {
+          'Content-Type': 'text/plain',
+        },
         httpMethod: 'POST',
         url,
         oidcToken: {

cloud-tasks/createTask.js

@@ -48,6 +48,9 @@ function main(
 
     const task = {
       appEngineHttpRequest: {
+        headers: {
+          'Content-Type': 'text/plain',
+        },
         httpMethod: 'POST',
         relativeUri: '/log_payload',
       },
@@ -66,12 +69,14 @@ function main(
 
     console.log('Sending task:');
     console.log(task);
+
     // Send create task request.
     const request = {parent: parent, task: task};
     const [response] = await client.createTask(request);
     const name = response.name;
     console.log(`Created task ${name}`);
   }
+
   createTask();
   // [END cloud_tasks_appengine_create_task]
 }