{
    "AWSTemplateFormatVersion": "2010-09-09",
    "Description": "Creates Lambda function API Gateway CustomResource CloudFormation handler",
      "Parameters": {
        "APIGatewayCustomResourceZipKey": {
          "Description": "Zip file for API Gatway custom resource",
          "Type": "String",
          "Default": "apigatewaycloudformation-V1.1.4.zip"
        }
      },
     "Mappings" : {
        "AWSRegion2Bucket" : {
          "us-east-1"        : {"OpenCode" : "au-com-thinkronicity-opencode-usea1",     "ClientCode" : "au-com-thinkronicity-clientcode-apne1"},
          "us-west-1"        : {"OpenCode" : "au-com-thinkronicity-opencode-uswe1",     "ClientCode" : "au-com-thinkronicity-clientcode-apne1"},
          "eu-west-1"        : {"OpenCode" : "au-com-thinkronicity-opencode-euwe1",     "ClientCode" : "au-com-thinkronicity-clientcode-apne1"},
          "ap-northeast-1"   : {"OpenCode" : "au-com-thinkronicity-opencode-apne1",     "ClientCode" : "au-com-thinkronicity-clientcode-apne1"}
        }
      },
    "Resources": {
        "LambdaBasePolicy": {
            "Type": "AWS::IAM::ManagedPolicy",
            "Properties": {
                "Description" : "managed Policy for API Gateway Lambda function",
                "Path" : "/infrastructure/base/lambda/",
                "PolicyDocument": {
                    "Version" : "2012-10-17",
                    "Statement": [
                        {
                            "Effect": "Allow",
                            "Action": [
                                "logs:CreateLogGroup",
                                "logs:CreateLogStream",
                                "logs:PutLogEvents"
                            ],
                            "Resource": "arn:aws:logs:*:*:*"
                        },
                        {
                            "Effect": "Allow",
                            "Action": [
                                "apigateway:*"
                            ],
                            "Resource": "*"
                        },
                        {
                            "Effect": "Allow",
                            "Action": [
                                "iam:PassRole"
                            ],
                            "Resource": "*"
                        }
                    ]
                }
            }
        },
        "LambdaFunctionRole": {
            "Type": "AWS::IAM::Role",
            "Properties": {
                "AssumeRolePolicyDocument": {
                    "Version": "2012-10-17",
                    "Statement": [
                        {
                            "Effect": "Allow",
                            "Principal": {
                                "Service": "lambda.amazonaws.com"
                            },
                            "Action": "sts:AssumeRole"
                        }
                    ]
                },
                "ManagedPolicyArns": [{ "Ref": "LambdaBasePolicy" }]
            }
        },
        "LambdaFunction": {
            "Type": "AWS::Lambda::Function",
            "Properties": {
                "Code" : {
                  "S3Bucket" : { "Fn::FindInMap" : [ "AWSRegion2Bucket", { "Ref" : "AWS::Region" }, "OpenCode" ]},
                  "S3Key" : {"Ref": "APIGatewayCustomResourceZipKey"}
                },
                "Description": "Api Gateway CloudFormation.",
                "Handler": "lib/index.handler",
                "MemorySize": 256,
                "Role": { "Fn::GetAtt": ["LambdaFunctionRole", "Arn"] },
                "Runtime": "nodejs",
                "Timeout": 30
            }
        }
    },
    "Outputs": {
        "LambdaFunction": {
            "Value": { "Fn::GetAtt": ["LambdaFunction", "Arn"] }
        }
    }
}