How to create an API Gateway HTTP Proxy without any lambda function - amazon-web-services

Question

i use the serverless framework and would like to deploy an API Gateway HTTP Proxy but i don't have a Lambda function connected with API Gateway.
I found this in the internet, but this example require one lambda function connected to API Gateway
# ProxyResource:
# Type: AWS::ApiGateway::Resource
# Properties:
# ParentId:
# Fn::GetAtt:
# - ApiGatewayRestApi # our default Rest API logical ID
# - RootResourceId
# PathPart: serverless # the endpoint in your API that is set as proxy
# RestApiId:
# Ref: ApiGatewayRestApi
# ProxyMethod:
# Type: AWS::ApiGateway::Method
# Properties:
# ResourceId:
# Ref: ProxyResource
# RestApiId:
# Ref: ApiGatewayRestApi
# HttpMethod: GET # the method of your proxy. Is it GET or POST or ... ?
# MethodResponses:
# - StatusCode: 200
# Integration:
# IntegrationHttpMethod: POST
# Type: HTTP
# Uri: http://serverless.com # the URL you want to set a proxy to
# IntegrationResponses:
# - StatusCode: 200
If i deploy this i got the error:
The CloudFormation template is invalid: Template format error: Unresolved resource dependencies [ApiGatewayRestApi] in the Resources block of the template
It is possible to deploy just an API Gateway HTTP Proxy ?
Thanks

Answer 1

I figure out how to create an API Gateway if i don't have any lambda function in serverless. I just need to add this to resources and change Ref: ApiGatewayRestApi to Ref: ProxyApi
resources:
Resources:
ProxyApi:
Type: AWS::ApiGateway::RestApi
Properties:
Name: ApiGateway
To fulfill my requirement to use AppSync without any ApiKey - it's possible with these lines:
ProxyApi:
Type: AWS::ApiGateway::RestApi
Properties:
Name: AppSync Graph Proxy
ProxyResource:
Type: AWS::ApiGateway::Resource
Properties:
ParentId:
Fn::GetAtt:
- ProxyApi # our default Rest API logical ID
- RootResourceId
PathPart: graphql # the endpoint in your API that is set as proxy
RestApiId:
Ref: ProxyApi
ProxyMethod:
Type: AWS::ApiGateway::Method
Properties:
ResourceId:
Ref: ProxyResource
RestApiId:
Ref: ProxyApi
AuthorizationType: NONE
HttpMethod: ANY # the method of your proxy. Is it GET or POST or ... ?
MethodResponses:
- StatusCode: 200
Integration:
IntegrationHttpMethod: POST
Type: HTTP
Uri: { Fn::GetAtt: [GraphQlApi, GraphQLUrl] } # the URL you want to set a proxy to
IntegrationResponses:
- StatusCode: 200
RequestParameters:
"integration.request.header.x-api-key": "stageVariables.API_KEY"
ProxyDeployment:
Type: AWS::ApiGateway::Deployment
DependsOn: "ProxyMethod"
Properties:
RestApiId:
Ref: ProxyApi
ProxyStage:
Type: AWS::ApiGateway::Stage
Properties:
StageName: ${opt:stage, self:provider.stage}
RestApiId:
Ref: ProxyApi
DeploymentId:
Ref: ProxyDeployment
Variables:
API_KEY: { Fn::GetAtt: [GraphQlApiKeyDefault, ApiKey] }
For this, you need an working and configured serverless-appsync-plugin in your serverless config