I want to set values to the fields @requestId in lambda executions because logs outputted explicitly inside the source code does not contain the @requestId field value.
I've read an article and tried to output logs like the below but the @requestId did not to be filled.
fmt.Print(`{"requestId":"come on!!"}`)
Neither the below code.
fmt.Print(`{"@requestId":"come on!!"}`)
Are system fields protected?
When an AWS Lambda function is triggered, a context element is passed to the function.
From AWS Lambda Function Handler in Go - AWS Lambda:
func HandleRequest(ctx context.Context, name MyEvent) (string, error) {
return fmt.Sprintf("Hello %s!", name.Name ), nil
}
From AWS Lambda Context Object in Go - AWS Lambda:
Context Properties
AwsRequestID– The identifier of the invocation request.
Therefore, you can retrieve the Request ID from the context. Then, anything that your function prints will be captured in CloudWatch Logs. So, include the Request ID in your print statement.