AWS ChatBot in Slack: Lambda invoke unmarshal error-CodePudding

I am trying to invoke my lambda function by passing some parameter through AWS ChatBot integrated in slack channel but getting an unmarshal error

I tried to implement the command below in my slack channel integrated with AWS chatbot

@aws lambda invoke  --function-name Sk-Bot --payload "{\"Tag\": \"CDMS\"}" response.json --region ap-south-1

I got an error as like below

ExecutedVersion: $LATEST
FunctionError: Unhandled
StatusCode: 200
Payload:
{
    "errorMessage" : "Unable to unmarshal input: Extra data: line 1 column 23 - line 1 column 36 (char 22 - 35)",
    "errorType" : "Runtime.UnmarshalError",
    "requestId" : "2cf8ae8f-1da4-480d-b76b-96f06a09c45f",
    "stackTrace" : [ ]
}

my lambda code is below

def lambda_handler(event, context):
    if "Tag" in event:
       tag_value = event['Tag']
       print(tag_value)
    else:
       tag_value = None
       print("Error in Value")

I would like to pass the parameter to lambda function through the aws chatbot integrated with my slack channel. can anyone help me on these?

CodePudding user response：

If you are trying to invoke the lambda function from a Slack message (and not from the CLI) then you can do it in this way:

@aws lambda invoke  --function-name Sk-Bot --payload {"Tag": "CDMS"} --region ap-south-1

Note that there is no response.json parameter as the response won't be saved into a file. Also note how the payload is declared.