Chat Bot slots and Lamba

Question

I have created the slots values and the lambda function and this appears on the test: 
Invalid Lambda Response: Received invalid response from Lambda: Cannot construct instance of `IntentResponse`, problem: The validated object is null at [Source: (String)"{"statusCode":200,"body":"\"Hello from Lambda!\""}"; line: 1, column: 50]

Answer

Hi,

It looks like your Lambda function is returning a generic response.  Lex is expecting a specific format after running the function:
https://docs.aws.amazon.com/lexv2/latest/dg/lambda.html#lambda-response-format

You need to modify your Lambda function to return the specific response format.

See also: 
https://repost.aws/questions/QUxVxtLzR1Rp6bLUnk6_MYyw/having-issue-while-sending-lambda-response-to-lex-v-2-error-invalid-lambda-response-can-not-construct-instance-of-intent-response

Chat Bot slots and Lamba

Relevant content