aws api gateway integration request mapping template for aws lambda

req-mapping.json

{
  "method": "$context.httpMethod",
  "resourcePath": "$context.resourcePath",
  "querystring": {
    #foreach($key in $input.params().querystring.keySet())
    "$key": "$input.params().querystring.get($key)"#if($foreach.hasNext),#end
    #end
  },
  "path": {
    #foreach($key in $input.params().path.keySet())
    "$key": "$input.params().path.get($key)"#if($foreach.hasNext),#end
    #end
  },
  "header": {
    #foreach($key in $input.params().header.keySet())
    "$key": "$input.params().header.get($key)"#if($foreach.hasNext),#end
    #end
  }
}