将 Tsheets api 连接到 Google 应用程序脚本时出错

Question

When running the script below from the GAS environment, I get the error message: "Attribute provided with invalid value: Header:Host"

 function fetch() {var settings = { "async": true, "crossDomain": true, "method": "GET", "headers": { "Authorization": "Bearer "+token, "User-Agent": "PostmanRuntime/7.20.1", "Accept": "*/*", "Cache-Control": "no-cache", "Postman-Token": postman_token, "Host": "rest.tsheets.com", "Accept-Encoding": "gzip, deflate", "Connection": "keep-alive", "cache-control": "no-cache" } } var now = new Date(); var day = now.getDate()>9? now.getDate():'0'+now.getDate(); var date = now.getFullYear()+'-'+now.getMonth()+'-'+day; var url = organization+'/timesheets?start_date='+date; Logger.log(url); var response = UrlFetchApp.fetch(url,settings); Logger.log(response); }

The original code was generated using Postman and works with no issues but I translated it from AJAX syntax to GAS and it doesn't work from the GAS environment.

Answer 1

Delete the Host from the header fields, it gets specified automatically and fetch from Apps Script won't allow you to specify it, just delete it, because it is what is rising the error.

About the rest:

Postman-token is useless here, you can delete it also. Same with user-agent , I believe it will be overwritten, so it can be safely ignored.

Finally, parameters as crossDomain and async although they won't rise any exception, they are also ignored, so you can just suppress them.

On here you'll find documentation about the allowed parameters for the Class UrlFetchApp , and on here you'll find the w3c documentation on the header field definitions.

This should do:

var settings = {
    "method": "GET",
    "headers": {
      "Authorization": "Bearer "+token,
      "Accept": "*/*",
      "Cache-Control": "no-cache",
      "Accept-Encoding": "gzip, deflate",
      "Connection": "keep-alive",
      "cache-control": "no-cache"
    }