javascript - "Error: Cannot find module 'handler'nRequire stack:n- varruntimeindex.mjs" - Stac

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I tried to deploy a simple function using AWS Lambda. However, I got this error even though I set the handler correctly. P/s: I did not use the serverless.yml nor CLI. I deployed it using AWS Lambda interface.

Lambda Handler: functions/fetchNest/handler.fetch

Error:

"errorType": "Runtime.ImportModuleError",
    "errorMessage": "Error: Cannot find module 'handler'\nRequire stack:\n- /var/runtime/index.mjs",
    "stack": [
        "Runtime.ImportModuleError: Error: Cannot find module 'handler'",
        "Require stack:",
        "- /var/runtime/index.mjs",
        "    at _loadUserApp (file:///var/runtime/index.mjs:951:17)",
        "    at async Object.UserFunction.js.module.exports.load (file:///var/runtime/index.mjs:976:21)",
        "    at async start (file:///var/runtime/index.mjs:1137:23)",
        "    at async file:///var/runtime/index.mjs:1143:1"
    ]

handler.js

module.exports.fetch = async event => {

  // Get SSM creds.

folder structure

I tried to deploy a simple function using AWS Lambda. However, I got this error even though I set the handler correctly. P/s: I did not use the serverless.yml nor CLI. I deployed it using AWS Lambda interface.

Lambda Handler: functions/fetchNest/handler.fetch

Error:

"errorType": "Runtime.ImportModuleError",
    "errorMessage": "Error: Cannot find module 'handler'\nRequire stack:\n- /var/runtime/index.mjs",
    "stack": [
        "Runtime.ImportModuleError: Error: Cannot find module 'handler'",
        "Require stack:",
        "- /var/runtime/index.mjs",
        "    at _loadUserApp (file:///var/runtime/index.mjs:951:17)",
        "    at async Object.UserFunction.js.module.exports.load (file:///var/runtime/index.mjs:976:21)",
        "    at async start (file:///var/runtime/index.mjs:1137:23)",
        "    at async file:///var/runtime/index.mjs:1143:1"
    ]

handler.js

module.exports.fetch = async event => {

  // Get SSM creds.

folder structure

• javascript
• node.js
• amazon-web-services
• aws-lambda

Share Improve this question Follow edited Oct 20, 2022 at 21:32 John Rotenstein 271k2828 gold badges448448 silver badges532532 bronze badges asked Oct 20, 2022 at 20:53 Lucas.PhelinyLucas.Pheliny 12511 gold badge22 silver badges99 bronze badges 2

• Start with the sample code provided by Amazon and build from there. I bet your handler should be something much simpler like "handler" instead of what you're using – Jader Dias Commented Oct 20, 2022 at 21:06
• It should be judging by the code I provide which it didn't work. Not that passing the code from Amazon would make it work. – Lucas.Pheliny Commented Oct 20, 2022 at 21:17

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 2

Don't use Compress FileName in MacOS, else you'll end up zipping your files with chaos. Use mand zip instead. For example:

zip testFile.zip index.js node_modules utils

This will create the zip file contains all your required sub files and folders. After that you can config your Handler in Lambda like this

testFile/index.hander

I tried to deploy a simple function using AWS Lambda. However, I got this error even though I set the handler correctly. P/s: I did not use the serverless.yml nor CLI. I deployed it using AWS Lambda interface.

Lambda Handler: functions/fetchNest/handler.fetch

Error:

"errorType": "Runtime.ImportModuleError",
    "errorMessage": "Error: Cannot find module 'handler'\nRequire stack:\n- /var/runtime/index.mjs",
    "stack": [
        "Runtime.ImportModuleError: Error: Cannot find module 'handler'",
        "Require stack:",
        "- /var/runtime/index.mjs",
        "    at _loadUserApp (file:///var/runtime/index.mjs:951:17)",
        "    at async Object.UserFunction.js.module.exports.load (file:///var/runtime/index.mjs:976:21)",
        "    at async start (file:///var/runtime/index.mjs:1137:23)",
        "    at async file:///var/runtime/index.mjs:1143:1"
    ]

handler.js

module.exports.fetch = async event => {

  // Get SSM creds.

folder structure

I tried to deploy a simple function using AWS Lambda. However, I got this error even though I set the handler correctly. P/s: I did not use the serverless.yml nor CLI. I deployed it using AWS Lambda interface.

Lambda Handler: functions/fetchNest/handler.fetch

Error:

"errorType": "Runtime.ImportModuleError",
    "errorMessage": "Error: Cannot find module 'handler'\nRequire stack:\n- /var/runtime/index.mjs",
    "stack": [
        "Runtime.ImportModuleError: Error: Cannot find module 'handler'",
        "Require stack:",
        "- /var/runtime/index.mjs",
        "    at _loadUserApp (file:///var/runtime/index.mjs:951:17)",
        "    at async Object.UserFunction.js.module.exports.load (file:///var/runtime/index.mjs:976:21)",
        "    at async start (file:///var/runtime/index.mjs:1137:23)",
        "    at async file:///var/runtime/index.mjs:1143:1"
    ]

handler.js

module.exports.fetch = async event => {

  // Get SSM creds.

folder structure

• javascript
• node.js
• amazon-web-services
• aws-lambda

Share Improve this question Follow edited Oct 20, 2022 at 21:32 John Rotenstein 271k2828 gold badges448448 silver badges532532 bronze badges asked Oct 20, 2022 at 20:53 Lucas.PhelinyLucas.Pheliny 12511 gold badge22 silver badges99 bronze badges 2

• Start with the sample code provided by Amazon and build from there. I bet your handler should be something much simpler like "handler" instead of what you're using – Jader Dias Commented Oct 20, 2022 at 21:06
• It should be judging by the code I provide which it didn't work. Not that passing the code from Amazon would make it work. – Lucas.Pheliny Commented Oct 20, 2022 at 21:17

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 2

Don't use Compress FileName in MacOS, else you'll end up zipping your files with chaos. Use mand zip instead. For example:

zip testFile.zip index.js node_modules utils

This will create the zip file contains all your required sub files and folders. After that you can config your Handler in Lambda like this

testFile/index.hander

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