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Basic WebSocket mock in AWS ApiGateway using CloudFormation in AWS
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AWSTemplateFormatVersion: '2010-09-09' | |
Description: | | |
AWS CloudFormation template for Mock WebSocket API Gateway. When deploying this stack please remember to check the option: | |
- I acknowledge that AWS CloudFormation might create IAM resources. | |
This template can help you to solve issues like: | |
- CloudWatch Logs role ARN must be set in account settings to enable logging | |
- Execution failed due to configuration error: statusCode should be an integer which defined in request template | |
- This custom domain name cannot map to WEBSOCKET protocol APIs | |
- Error during WebSocket handshake: Unexpected response code: 500 | |
Resources: | |
ApiGwAccountConfig: | |
Type: "AWS::ApiGateway::Account" | |
Properties: | |
CloudWatchRoleArn: !GetAtt "ApiGatewayLoggingRole.Arn" | |
ApiGatewayLoggingRole: | |
Type: "AWS::IAM::Role" | |
Properties: | |
AssumeRolePolicyDocument: | |
Version: "2012-10-17" | |
Statement: | |
- Effect: Allow | |
Principal: | |
Service: | |
- "apigateway.amazonaws.com" | |
Action: "sts:AssumeRole" | |
Path: "/" | |
ManagedPolicyArns: | |
- !Sub "arn:${AWS::Partition}:iam::aws:policy/service-role/AmazonAPIGatewayPushToCloudWatchLogs" | |
WebSocketMock: | |
Type: AWS::ApiGatewayV2::Api | |
Properties: | |
Name: WebSocketMock | |
ProtocolType: WEBSOCKET | |
RouteSelectionExpression: "$request.body.message" | |
Description: "Mock WebSocket API Gateway." | |
ConnectRoute: | |
Type: AWS::ApiGatewayV2::Route | |
Properties: | |
ApiId: !Ref WebSocketMock | |
RouteKey: $connect | |
RouteResponseSelectionExpression: '$default' | |
AuthorizationType: NONE | |
ApiKeyRequired: false | |
OperationName: ConnectRoute | |
Target: !Join | |
- '/' | |
- - 'integrations' | |
- !Ref ConnectInteg | |
ConnectInteg: | |
Type: AWS::ApiGatewayV2::Integration | |
Properties: | |
ApiId: !Ref WebSocketMock | |
Description: Connect Integration | |
IntegrationType: MOCK | |
RequestTemplates: | |
"200" : '{"statusCode" : 200}' | |
TemplateSelectionExpression: '200' | |
PassthroughBehavior: 'WHEN_NO_MATCH' | |
ConnectIntegResp: | |
Type: AWS::ApiGatewayV2::IntegrationResponse | |
Properties: | |
ApiId: !Ref WebSocketMock | |
IntegrationId: !Ref ConnectInteg | |
IntegrationResponseKey: '$default' | |
ResponseTemplates: | |
"200" : '{"statusCode" : 200}' | |
ConnectRouteResponse: | |
Type: AWS::ApiGatewayV2::RouteResponse | |
Properties: | |
RouteId: !Ref ConnectRoute | |
ApiId: !Ref WebSocketMock | |
RouteResponseKey: $default | |
DisconnectRoute: | |
Type: AWS::ApiGatewayV2::Route | |
Properties: | |
ApiId: !Ref WebSocketMock | |
RouteKey: $disconnect | |
RouteResponseSelectionExpression: '$default' | |
AuthorizationType: NONE | |
OperationName: DisconnectRoute | |
Target: !Join | |
- '/' | |
- - 'integrations' | |
- !Ref DisconnectInteg | |
DisconnectInteg: | |
Type: AWS::ApiGatewayV2::Integration | |
Properties: | |
ApiId: !Ref WebSocketMock | |
Description: Disconnect Integration | |
IntegrationType: MOCK | |
RequestTemplates: | |
"200" : '{"statusCode" : 200}' | |
TemplateSelectionExpression: '200' | |
PassthroughBehavior: 'WHEN_NO_MATCH' | |
DisconnectIntegResp: | |
Type: AWS::ApiGatewayV2::IntegrationResponse | |
Properties: | |
ApiId: !Ref WebSocketMock | |
IntegrationId: !Ref DisconnectInteg | |
IntegrationResponseKey: '$default' | |
ResponseTemplates: | |
"200" : '{"statusCode" : 200}' | |
DisconnectRouteResponse: | |
Type: AWS::ApiGatewayV2::RouteResponse | |
Properties: | |
RouteId: !Ref DisconnectRoute | |
ApiId: !Ref WebSocketMock | |
RouteResponseKey: $default | |
DefaultRoute: | |
Type: AWS::ApiGatewayV2::Route | |
Properties: | |
ApiId: !Ref WebSocketMock | |
RouteKey: $default | |
RouteResponseSelectionExpression: '$default' | |
AuthorizationType: NONE | |
OperationName: DefaultRoute | |
Target: !Join | |
- '/' | |
- - 'integrations' | |
- !Ref DefaultInteg | |
DefaultInteg: | |
Type: AWS::ApiGatewayV2::Integration | |
Properties: | |
ApiId: !Ref WebSocketMock | |
Description: Default Integration | |
IntegrationType: MOCK | |
RequestTemplates: | |
"200" : '{"statusCode" : 200}' | |
TemplateSelectionExpression: '200' | |
DefaultIntegResp: | |
Type: AWS::ApiGatewayV2::IntegrationResponse | |
Properties: | |
ApiId: !Ref WebSocketMock | |
IntegrationId: !Ref DefaultInteg | |
IntegrationResponseKey: $default | |
ResponseTemplates: | |
"200" : '{"statusCode" : 200, "connectionId" : "$context.connectionId"}' | |
TemplateSelectionExpression: '200' | |
DefaultRouteResponse: | |
Type: AWS::ApiGatewayV2::RouteResponse | |
Properties: | |
RouteId: !Ref DefaultRoute | |
ApiId: !Ref WebSocketMock | |
RouteResponseKey: $default | |
Deployment: | |
Type: AWS::ApiGatewayV2::Deployment | |
DependsOn: | |
- ConnectRoute | |
- DisconnectRoute | |
- DefaultRoute | |
Properties: | |
ApiId: !Ref WebSocketMock | |
Stage: | |
Type: AWS::ApiGatewayV2::Stage | |
Properties: | |
StageName: LATEST | |
Description: One and only Stage | |
DeploymentId: !Ref Deployment | |
ApiId: !Ref WebSocketMock | |
DefaultRouteSettings: | |
DetailedMetricsEnabled: true | |
LoggingLevel: INFO | |
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Thanks @maatthc! This Gist helped answering a lot of questions I had when trying to add Response Integration and Route