ReferenceError: fetch is not defined

[ghost]

I'm following the tutorial at: https://serverless-stack.com/chapters/test-the-apis.html

I'm using node v8.9.4 and the latest packages as of 2/12/2018

I get this error:

apig-test --username [email protected] --password Passw0rd! --user-pool-id us-west-2_xZGqbyKso --app-client-id 4v4l8u687ku8b83lr9cd5irog6 --cognito-region us-west-2 --identity-pool-id us-east-1:b9f7dd39-1216-48bd-8580-132ca7fad875 --invoke-url https://hw9qpley70.execute-api.us-west-2.amazonaws.com/prod --api-gateway-region us-west-2 --path-template /notes --method POST --body "{\"content\":\"hello world\",\"attachment\":\"hello.jpg\"}"
Authenticating with User Pool
C:\Users\Paul\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\Client.js:54
    fetch(this.endpoint, options).then(function (resp) {
    ^

ReferenceError: fetch is not defined
    at Client.request (C:\Users\Paul\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\Client.js:54:5)
    at C:\Users\Paul\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\CognitoUser.js:316:21
    at AuthenticationHelper.getLargeAValue (C:\Users\Paul\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\AuthenticationHelper.js:85:7)
    at CognitoUser.authenticateUserDefaultAuth (C:\Users\Paul\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\CognitoUser.js:294:26)
    at CognitoUser.authenticateUser (C:\Users\Paul\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\CognitoUser.js:257:19)
    at authenticate (C:\Users\Paul\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\index.js:106:15)
    at Object.<anonymous> (C:\Users\Paul\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\index.js:198:1)
    at Module._compile (module.js:643:30)
    at Object.Module._extensions..js (module.js:654:10)
    at Module.load (module.js:556:32)

[jayair]

@paul-tx This seems like an issue with the Cognito JS SDK. Can I see your package.json?

[ghost]

Hi Jay, I’m not sure which project I was doing this for. One thing I know though is that I’m fastidious about always using the latest version of packages.

From: Jay V Sent: Friday, February 16, 2018 4:06 PM To: AnomalyInnovations/aws-api-gateway-cli-test Cc: paul-tx; Mention Subject: Re: [AnomalyInnovations/aws-api-gateway-cli-test] ReferenceError:fetch is not defined (#7)

@paul-tx This seems like an issue with the Cognito JS SDK. Can I see your package.json? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

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[sw-waterford]

I encountered a similar issue in another script I was building using amazon-cognito-identity-js library v2.0.0 on node v6.10.3 I was able to fix it by adding node-fetch npm to the project and setting a global for it. global.fetch = require('node-fetch');

[jayair]

@sw-waterford Did you add this to the index.js https://github.com/AnomalyInnovations/aws-api-gateway-cli-test/blob/master/index.js?

[sw-waterford]

This was in a different project/library if it was added to the index of this project it should be a suitable replacement for the WindowMock library. I have not encountered the issue with this module so I have not tried swapping them out.