Serverless Programming Cookbook

Mapping requests

The expected request structure for our Lambda, based on the request POJO, is as follows:

{ "name" : "Heartin", "time" : "Morning"}

The request payload sent from the client via the POST request is as follows:

{ "user" : { "name" : "Heartin" }, "greeting" : { "time" : "Morning" }}

We can map the request payload to the expected JSON format by using the following mapping template:

{ "name" : $input.json('$.user.name'), "time" : $input.json('$.greeting.time')}