node.js - How to verify AWS Cognito Access Token on NodeJS -


i found example on how verify cognito access tokens python. how do same nodejs? there no sdk function this?

so far have 

authorizecognitojwt(token) {     const cognito_pool_id = 'ap-southeast-1_xxx'     const cognito_jwt_set = {     'keys': [         {         'alg': 'rs256',         'e': 'aqab',         'kid': 'chkv+...=',         'kty': 'rsa',         'n': 'tkjexs...johc5q',         'use': 'sig'         },         {         'alg': 'rs256',         'e': 'aqab',         'kid': 've...eb8dw6y=',         'kty': 'rsa',         'n': 'hw19h...0c9q',         'use': 'sig'         }     ]     }     const decodedjwt = jwt.decode(token, {complete: true})     console.log(decodedjwt)      if (decodedjwt.payload.iss !== `https://cognito-idp.us-east-1.amazonaws.com/${cognito_pool_id}`) {     return 'invalid_issuer'     }      if (decodedjwt.payload.token_use !== 'access') {     return 'invalid_token_use'     }      var jwtkey = cognito_jwt_set.keys.find(k => k.kid === decodedjwt.header.kid)     if (!jwtkey) {     return 'invalid_token_kid'     }      var verifiedkey = jwt.verify(token, /* how key? */)      return 'valid' }

but stuck @ how keys cognito_jwt_set

you can cognito_jwt_set using this url.

refer blog post integrating amazon cognito user pools api gateway in aws mobile blog complete example code.


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