Execution Error

[antonismladenis]

Hi,

I tried to execute the code as an AWS Lambda Function, but I get an error response about the 'async function fetchKeys()'. What am I missing?

//required params
const params = {
  region: '<your-aws-region>',
  userPoolId: '<your-user-pool-id>'
}
 
//optional claims examples
const claims = {
  aud: '<your-app-client-id>',
  email_verified: true,
  auth_time: time => time <= 1524588564,
  'cognito:groups': groups => groups.includes('Admins')
}
 
const Verifier = require('verify-cognito-token');
const verifier = new Verifier(params, claims);
 
verifier.verify(token)
.then(result =>{
  //result will be `true` if token is valid, non-expired, and has matching claims
  //result will be `false` if token is invalid, expired or fails the claims check
})

Response:
{
"errorMessage": "RequestId: 4f8d8756-c097-11e8-8adf-6f88f5e6d44a Process exited before completing request"
}

Request ID:
"4f8d8756-c097-11e8-8adf-6f88f5e6d44a"

Function Logs:
START RequestId: 4f8d8756-c097-11e8-8adf-6f88f5e6d44a Version: $LATEST
2018-09-25T07:47:54.317Z 4f8d8756-c097-11e8-8adf-6f88f5e6d44a /var/task/node_modules/verify-cognito-token/index.js:6
async function fetchKeys() {
^^^^^^^^
SyntaxError: Unexpected token function
at createScript (vm.js:56:10)
at Object.runInThisContext (vm.js:97:10)
at Module._compile (module.js:542:28)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at exports.handler (/var/task/index.js:17:22)
END RequestId: 4f8d8756-c097-11e8-8adf-6f88f5e6d44a
REPORT RequestId: 4f8d8756-c097-11e8-8adf-6f88f5e6d44a Duration: 191.85 ms Billed Duration: 200 ms Memory Size: 128 MB Max Memory Used: 19 MB
RequestId: 4f8d8756-c097-11e8-8adf-6f88f5e6d44a Process exited before completing request

[pianosnake]

The Lambda runtime environment should be set to Node 8.10 or higher to support async functions.

[antonismladenis]

Thanks, now it works.

I guess the verification of token works only for AccessToken and IdToken and not for refreshToken because it has a different format, right?

Do you know how I could verify the refresh token too?