in sample-apps/nodejs-apig/function/index.js [18:31]
var formatResponse = function(body){
var response = {
"statusCode": 200,
"headers": {
"Content-Type": "application/json"
},
"isBase64Encoded": false,
"multiValueHeaders": {
"X-Custom-Header": ["My value", "My other value"],
},
"body": body
}
return response
}