swagger file content is not updating in aws apigateway - swagger

Question

I am working on swagger file, To create the authorizer in aws apigateway.But that time I 'll mention some function and api in swagger file.But it not effecting in the Apigateway.Once I deleted the stack,It will effect the APIgateway.If any changes is did that not effecting the APIgateway.Below I mentioning the template.yml file and swagger file.Please anyone will help to solve this issue.
template.yml file
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: TestApi
Resources:
ApiGateway:
Type: AWS::Serverless::Api
Properties:
StageName: Prod
DefinitionUri: s3://devdeliforcemumbailambda/swagger-json-testapi.json
DriverDeleteF:
Type: AWS::Serverless::Function
Properties:
FunctionName: driver_delete_fun
Handler: index.handler
Runtime: nodejs8.10
CodeUri: build/authorizer.zip
Events:
GetApi:
Type: Api
Properties:
Path: /driver
Method: delete
swagger file content
{
"swagger": "2.0",
"info": {
"title": "demo"
},
"host": "rl0cg75uff.execute-api.ap-south-1.amazonaws.com",
"basePath": "/Prod",
"schemes": [
"https"
],
"paths": {
"/driver": {
"delete": {
"produces": [
"application/json"
],
"responses": {
"200": {
"description": "200 response",
"schema": {
"$ref": "#/definitions/Empty"
}
}
},
"security": [
{
"CognitoAuth": []
}
],
"x-amazon-apigateway-integration": {
"uri": "arn:aws:apigateway:ap-south-1:lambda:path/2015-03-31/functions/arn:aws:lambda:ap-south-1:539977196287:function:driver_delete_fun/invocations",
"responses": {
"default": {
"statusCode": "200"
}
},
"passthroughBehavio r": "when_no_match",
"httpMethod": "POST",
"contentHandling": "CONVERT_TO_TEXT",
"type": "aws"
}
}
},
},
"securityDefinitions": {
"CognitoAuth": {
"type": "apiKey",
"name": "Authorization",
"in": "header",
"x-amazon-apigateway-authtype": "cognito_user_pools",
"x-amazon-apigateway-authorizer": {
"providerARNs": [
"arn:aws:cognito-idp:ap-south-1:539977196287:userpool/ap-south-1_6j7axGXVm"
],
"type": "cognito_user_pools"
}
},
"lambdaAuth":{
"type": "apiKey",
"name": "Authorization",
"in": "header",
"x-amazon-apigateway-authtype": "custom",
"x-amazon-apigateway-authorizer": {
"authorizerUri": "arn:aws:apigateway:ap-south-1:lambda:path/2015-03-31/functions/arn:aws:lambda:ap-south-1:539977196287:function:my-service-dev-hello/invocations",
"authorizerResultTtlInSeconds":1,
"identitySource": "method.request.header.Authorization",
"type": "request"
}
}
},
"definitions": {
"Empty": {
"type": "object",
"title": "Empty Schema"
}
}
}

Answer 1

Cloudformation does not compare the contents of your s3 object when you specify an S3 uri in DefinitionUri. You can instead specify a relative local path and have cloudformation cli upload it for you just as it usually does with function code. Cloudformation will then use your file hash in the s3 object key, hence having different DefinitionUri and CodeUri everytime they contain changes.
Therefore, instead of having these:
DefinitionUri: s3://devdeliforcemumbailambda/swagger-json-testapi.json
CodeUri: build/authorizer.zip
do this:
DefinitionUri: ./swagger-json-testapi.json
CodeUri: ./authorizer-code-directory
What I wrote is applicable to the following: (up to date docs here)
BodyS3Location property for the AWS::ApiGateway::RestApi resource
Code property for the AWS::Lambda::Function resource
CodeUri property for the AWS::Serverless::Function resource
DefinitionUri property for the AWS::Serverless::Api resource
SourceBundle property for the AWS::ElasticBeanstalk::ApplicationVersion resource
TemplateURL property for the AWS::CloudFormation::Stack resource
Deploy your stack as follows:
aws cloudformation package --template-file template.yaml --s3-bucket devdeliforcemumbailambda --output-template-file packaged-template.yaml
aws cloudformation deploy --capabilities CAPABILITY_NAMED_IAM --stack-name test-swagger --template-file packaged-template.yaml