AWS Lambda API网关定义路径参数节点Js-不起作用

Question

I have tried following the documentation to have path parameters filter the dynamodb scan.

I am trying to filter on userID. I have used API gateway to use the path as a parameter {userID} and used lambda to look for the path parameter to filter. When I hardcode a userID in the lambda function it works perfectly so there seems to be a disconnect in the function getting the path parameter.

lambda function:

apigateway path:

Answer 1

usually "$input.params" uses in body mapping templates. You can create a body mapping template in integration request and you can get params inside Lambda function like an event.UserID,

http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html#input-variable-reference