Deploy Google Apps Script via REST API

[Rajkumar Gaur]

Having error when deploying the Google Apps Script via this method https://developers.google.com/apps-script/api/reference/rest/v1/projects.deployments/create

Also posted on stackoverflow https://stackoverflow.com/questions/71404526/apps-script-projects-deployments-create-throwing-gaxioserror-requested-entity-w

[Clark Lind]

First, I just wanted to say your code is very clean and easy to read.
Based on what you shared, and not seeing the entire script, try adding   auth: this.auth,  to the deployment request. I don't know if it is required, but it is in your update function. 
Also, it shouldn't matter, but there is an extra comma after  manifestFileName: 'appsscript', <-- delete comma. 

Also consider adding a description (even if blank). 

Also try changing requestBody to resource.  

From the API: 
// Make sure the client is loaded and sign-in is complete before calling this method.

  function execute() {
      return gapi.client.script.projects.deployments.create({
        "resource": {
          "versionNumber": 1,
          "manifestFileName": "appsscript",
          "description": " "
        }
      })

Otherwise, from what I can see, your script should work.

Does it work if you manually try the API? (API)