Sign error

[srirammoorthyziffity]

i am getting the below error any idea?

{
"errorMessage": "Not a string or buffer",
"errorType": "TypeError",
"stackTrace": [
"Hash.update (crypto.js:240:17)",
"Object.util.crypto.hash (/var/task/node_modules/aws-sdk/lib/util.js:509:24)",
"Object.sha256 (/var/task/node_modules/aws-sdk/lib/util.js:461:26)",
"V4.hash as hexEncodedHash",
"V4.hexEncodedBodyHash (/var/task/node_modules/aws-sdk/lib/signers/v4.js:195:19)",
"V4.canonicalString (/var/task/node_modules/aws-sdk/lib/signers/v4.js:140:21)",
"V4.stringToSign (/var/task/node_modules/aws-sdk/lib/signers/v4.js:127:41)",
"V4.signature (/var/task/node_modules/aws-sdk/lib/signers/v4.js:109:56)",
"V4.authorization (/var/task/node_modules/aws-sdk/lib/signers/v4.js:86:36)",
"V4.addAuthorization (/var/task/node_modules/aws-sdk/lib/signers/v4.js:36:12)"
]
}

[srisub-amzn]

Can you elaborate on what you were trying to do?
And, is this during ingestion from Kinesis or from S3?

[danieleorler]

@srirammoorthyziffity I had the same problem, the solution (for me) was to "JSON.stringify" the document I want to save.

[srisub-amzn]

@danieleorler, thanks for pitching in. Could you provide some details on when this problem occurs, so that I can check and fix the code? Thank you.

[danieleorler]

@srisub-amzn, I think the code works just fine, I was only using a variation of the function

postDocumentToES(doc, context) 

doc should be a string but I was providing an object, which the signer cannot sign

[thesmart]

I would have assumed what @danieleorler assumed -- that AWS.HttpRequest would take an Object and not a json String. Reading this saved me some time.

[anjushetty]

I am seeing the same issue even after JSON.stringify doc, please suggest me if anything else need to take care?