# Comments for Test the APIs **URL:** \ **Category:** Chapter Comments\ **Created:** [May 9, 2018, 7:33pm UTC](https://discourse.sst.dev/t/comments-for-test-the-apis/122 "2018-05-09T19:33:16Z")\ **Posts on this page:** 20\ **Page:** 1

**Author:** ![anomalyinnovations](https://yyz2.discourse-cdn.com/flex032/user_avatar/discourse.sst.dev/anomalyinnovations/32/10_2.png) [@anomalyinnovations](https://discourse.sst.dev/u/anomalyinnovations)\ **Post date:** [May 9, 2018, 7:33pm UTC](https://discourse.sst.dev/t/comments-for-test-the-apis/122/1 "2018-05-09T19:33:16Z")

_From @jayair on Wed Jul 19 2017 19:48:19 GMT+0000 (UTC)_ Link to chapter - [http://serverless-stack.com/chapters/test-the-apis.html](http://serverless-stack.com/chapters/test-the-apis.html) _Copied from original issue: [https://github.com/AnomalyInnovations/serverless-stack-com/issues/112](https://github.com/AnomalyInnovations/serverless-stack-com/issues/112)_ ---

_From @yashg5 on Thu Jul 20 2017 08:57:00 GMT+0000 (UTC)_ Can you give us example screen shots to test API with postman using AWS signature? thanks in advance ---

_From @jayair on Thu Jul 20 2017 16:52:50 GMT+0000 (UTC)_ @yashg5 I’m not too familiar with using Postman. Perhaps somebody else can give it a try. ---

_From @marshallbunch on Thu Jul 20 2017 17:35:34 GMT+0000 (UTC)_ First off, thanks a ton for your tutorials. I went through the previous and now the revised. You’re doing great work. For some reason I’m getting an error when testing the apis: ### Error: Invalid UserPoolId format. ``` at new CognitoUserPool (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\CognitoUserPool.js:56:13) at authenticate (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\index.js:70:18) at Object. (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\index.js:155:1) ``` I can’t really think of a reason why I would be experiencing this problem. I’ve had no problems for any of the tests I’ve done so far that used the same user-pool-id. Any chance you could provide a sample apig-test call with actual values? ---

_From @jayair on Thu Jul 20 2017 17:45:00 GMT+0000 (UTC)_ @marshallbunch Here is a sample one that I was using. I altered some of the values around but the format should be like so. ```bash apig-test \ --username='admin@example.com' \ --password='Passw0rd!' \ --user-pool-id='us-east-1_YBhdXYvix' \ --app-client-id='29qwoeorti0ctjkur5h91lkw5g' \ --cognito-region='us-east-1' \ --identity-pool-id='us-east-1:565cc505-5486-4278-bf0f-9736p9apq8m5' \ --invoke-url='https://w5z1hluqmp5.execute-api.us-east-1.amazonaws.com/test' \ --api-gateway-region='us-east-1' \ --path-template='/notes' \ --method='POST' \ --body='{"content":"hello world","attachment":"hello.jpg"}' ``` ---

_From @marshallbunch on Thu Jul 20 2017 18:00:58 GMT+0000 (UTC)_ No cigar. Won’t make it past the user-pool-id. ---

_From @jayair on Thu Jul 20 2017 18:06:22 GMT+0000 (UTC)_ @marshallbunch Hmm can I see the complete output from the command? ---

_From @marshallbunch on Thu Jul 20 2017 18:19:02 GMT+0000 (UTC)_ Sure: ```auto C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\CognitoUserPool.js:56 throw new Error('Invalid UserPoolId format.'); ^ Error: Invalid UserPoolId format. at new CognitoUserPool (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\amazon-cognito-identity-js\lib\CognitoUserPool.js:56:13) at authenticate (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\index.js:70:18) at Object. (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\index.js:155:1) at Module._compile (module.js:571:32) at Object.Module._extensions..js (module.js:580:10) at Module.load (module.js:488:32) at tryModuleLoad (module.js:447:12) at Function.Module._load (module.js:439:3) at Module.runMain (module.js:605:10) at run (bootstrap_node.js:427:7) ``` ---

_From @manubhat90 on Thu Jul 20 2017 18:42:01 GMT+0000 (UTC)_ For beginners it might be helpful to specify that YOUR\_API\_GATEWAY\_URL should include the stage-name (prod in the example). “[https://ly55wbovq4.execute-api.us-east-1.amazonaws.com/prod](https://ly55wbovq4.execute-api.us-east-1.amazonaws.com/prod)” ---

_From @marshallbunch on Thu Jul 20 2017 18:45:42 GMT+0000 (UTC)_ did that as well. ---

_From @jayair on Thu Jul 20 2017 18:56:43 GMT+0000 (UTC)_ @marshallbunch Can you show me the full command you used as well? I’m not too familiar with the shell in Windows but let’s take a look. @manubhat90 Good catch. It would work either way but that can be confusing. ---

_From @marshallbunch on Thu Jul 20 2017 19:12:19 GMT+0000 (UTC)_ @jayair It is most definitely a syntax problem for the shell in windows. I got past the “invalid UserPoolId” error by getting rid of all the \ and the = and '. The current error is that it doens’t like the json in the body content. ```auto apig-test --username admin@example.com --password Passw0rd! --user-pool-id us-east-1_HwIVtcRh2 --app-client-id 34bb7b87t6rtc387foiletrldf --cognito-region us-east-1 --identity-pool-id us-east-1:285f61b7-8a95-4596-90ce-7f7e1848c2ed --invoke-url https://6xosj8ww6h.execute-api.us-east-1.amazonaws.com/prod/words --api-gateway-region us-east-1' --path-template /words' --method POST --body {"content":"hello world","attachment":"hello.jpg"} Authenticating with User Pool Getting temporary credentials Making API request C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\aws-sdk\lib\request.js:31 throw err; ^ SyntaxError: Unexpected token c in JSON at position 1 at JSON.parse () at makeRequest (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\index.js:131:19) at C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\index.js:114:5 at C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\aws-sdk\lib\credentials.js:123:23 at Response. (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\aws-sdk\lib\credentials\cognito_identity_credentials.js:258:7) at Request. (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\aws-sdk\lib\request.js:364:18) at Request.callListeners (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\aws-sdk\lib\sequential_executor.js:105:20) at Request.emit (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\aws-sdk\lib\sequential_executor.js:77:10) at Request.emit (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\aws-sdk\lib\request.js:683:14) at Request.transition (C:\Users\proet\AppData\Roaming\npm\node_modules\aws-api-gateway-cli-test\node_modules\aws-sdk\lib\request.js:22:10) ``` ---

_From @jayair on Thu Jul 20 2017 19:15:49 GMT+0000 (UTC)_ @marshallbunch Yeah I think we need to figure out how to format a string as an argument in the command line. And possibly escape the characters properly. ---

_From @tsdorsey on Fri Jul 21 2017 22:56:33 GMT+0000 (UTC)_ Hey guys. Great walkthrough. Everything went smoothly until it was time to test the API. I’m getting 502 bad gateway back from API Gateway. I looked in the CloudWatch logs and found that it can’t import modules. ```auto Unable to import module 'create': Error at Function.Module._resolveFilename (module.js:469:15) at Function.Module._load (module.js:417:25) at Module.require (module.js:497:17) at require (internal/module.js:20:19) at Object. (/var/task/create.js:76:18) at __webpack_require__ (/var/task/create.js:20:30) at Object. (/var/task/create.js:171:20) ``` I dug into this more by running the `get` lambda from the API gateway console dashboard using the test command. I got this: ```auto Endpoint response body before transformations: { "errorMessage": "Cannot find module 'babel-runtime/regenerator'", "errorType": "Error", "stackTrace": [ "require (internal/module.js:20:19)", "Object. (/var/task/list.js:76:18)", " __webpack_require__ (/var/task/list.js:20:30)", "Object. (/var/task/list.js:176:20)", " __webpack_require__ (/var/task/list.js:20:30)", "/var/task/list.js:63:18", "Object. (/var/task/list.js:66:10)" ] } ``` This led me to look into the file being uploaded to S3 by `serverless deploy` and found that they didn’t include webpack. I’ve attached a screenshot of the unzipped file sent to S3 and the files built by using `serverless webpack`. As you can see, the node\_modules folder is very different between them. ![screenshot 2017-07-21 15 41 29](https://canada1.discourse-cdn.com/flex032/uploads/serverless_stack/original/1X/67f5a59a2ae2957a6574003209a2a9e10e8ae477.png) Some of the results of `serverless deploy`: ```auto $ serverless deploy Serverless: Bundling with Webpack... Time: 1698ms Asset Size Chunks Chunk Names create.js 7.54 kB 0 [emitted] create update.js 7.41 kB 1 [emitted] update list.js 7.11 kB 2 [emitted] list get.js 7.06 kB 3 [emitted] get delete.js 6.84 kB 4 [emitted] delete handler.js 3.35 kB 5 [emitted] handler [0] external "babel-runtime/core-js/json/stringify" 42 bytes {0} {1} {2} {3} {4} {5} [not cacheable] [1] external "babel-runtime/regenerator" 42 bytes {0} {1} {2} {3} {4} [not cacheable] [2] external "babel-runtime/helpers/asyncToGenerator" 42 bytes {0} {1} {2} {3} {4} [not cacheable] [3] ./lib/dynamodb-lib.js 652 bytes {0} {1} {2} {3} {4} [built] [4] external "aws-sdk" 42 bytes {0} {1} {2} {3} {4} [not cacheable] [5] ./lib/response-lib.js 721 bytes {0} {1} {2} {3} {4} [built] [6] ./create.js 2.99 kB {0} [built] [7] external "uuid" 42 bytes {0} [not cacheable] [8] ./delete.js 2.37 kB {4} [built] [9] ./get.js 2.58 kB {3} [built] [10] ./handler.js 696 bytes {5} [built] [11] ./list.js 2.61 kB {2} [built] [12] ./update.js 2.9 kB {1} [built] Serverless: Packing external modules: babel-runtime@6.23.0, uuid@3.1.0 Serverless: Packaging service... Serverless: Uploading CloudFormation file to S3... Serverless: Uploading artifacts... Serverless: Uploading service .zip file to S3 (14.28 KB)... Serverless: Validating template... Serverless: Updating Stack... Serverless: Checking Stack update progress... ...................................... Serverless: Stack update finished... Service Information service: notes-app-api stage: prod region: us-west-2 api keys: None endpoints: --- functions: create: notes-app-api-prod-create list: notes-app-api-prod-list get: notes-app-api-prod-get update: notes-app-api-prod-update delete: notes-app-api-prod-delete ``` Any help would be very much appreciated. ---

_From @jayair on Fri Jul 21 2017 23:19:33 GMT+0000 (UTC)_ @tsdorsey Thanks for the details. As a quick sanity check, can I see your `package.json` and `serverless.yml`? ---

_From @tsdorsey on Sat Jul 22 2017 01:13:48 GMT+0000 (UTC)_ @jayair I should have done this before I posted. > **[tsdorsey/sls-notes-app](https://github.com/tsdorsey/sls-notes-app)** > > serverless-stack.com walkthrough test. Contribute to tsdorsey/sls-notes-app development by creating an account on GitHub. I have `serverless-dynamodb-local` and `serverless-offline` in my package file but I’m not using them at the moment. I planned to do that later. ---

_From @marshallbunch on Sat Jul 22 2017 01:39:06 GMT+0000 (UTC)_ @tsdorsey Good catch. It appears I’m experiencing the same issue. ---

_From @tsdorsey on Sat Jul 22 2017 03:00:28 GMT+0000 (UTC)_ @marshallbunch and @jayair I’m newish to webpack. Do you think you could point me in a direction so I could try to help figure this out? Got any gut feelings? ---

_From @tsdorsey on Sat Jul 22 2017 03:24:15 GMT+0000 (UTC)_ Ok, so I watched the folders as I ran `serverless package` and the `.webpack` folder is created with the dependencies in the `node_modules` folder as expected. Then the zip file is made and the `.webpack` folder is cleaned up. I have been reading through the package plugin; I’m suspect of the excludes directive but the aren’t logged… ☹ ---

_From @navinkumarr on Sat Jul 22 2017 11:52:12 GMT+0000 (UTC)_ Getting 403 response ```bash Authenticating with User Pool Getting temporary credentials Making API request { status: 403, statusText: 'Forbidden', data: { message: 'Forbidden' } } ``` [Next page](https://discourse.sst.dev/t/comments-for-test-the-apis/122.md?page=2)