@inquisitive/serverless-apigateway-service-proxy

This is a fork of the serverless-operations/serverless-apigateway-service-proxy project that fixes compatibility with Serverless Framework v4 (issue #170).

What is this plugin?

The Serverless API Gateway Service Proxy plugin enables direct integration between Amazon API Gateway and various AWS services without requiring Lambda functions as intermediaries. This allows you to:

• Create more cost-effective and lower-latency API endpoints
• Reduce complexity by eliminating unnecessary Lambda functions
• Connect API Gateway directly to services like Kinesis, SQS, SNS, S3, DynamoDB, and EventBridge

Installation

npm install @inquisitive/serverless-apigateway-service-proxy

Usage

Add the plugin to your serverless.yml file:

plugins:
  - '@inquisitive/serverless-apigateway-service-proxy'

Then define your service proxies under the custom.apiGatewayServiceProxies section.

Supported AWS Services

This plugin supports direct API Gateway integration with:

• Kinesis Streams
• SQS
• S3
• SNS
• DynamoDB
• EventBridge

Configuration Examples

Kinesis Example

custom:
  apiGatewayServiceProxies:
    - kinesis:
        path: /kinesis
        method: post
        streamName: { Ref: 'YourStream' }
        cors: true

resources:
  Resources:
    YourStream:
      Type: AWS::Kinesis::Stream
      Properties:
        ShardCount: 1

SQS Example

custom:
  apiGatewayServiceProxies:
    - sqs:
        path: /sqs
        method: post
        queueName: { 'Fn::GetAtt': ['SQSQueue', 'QueueName'] }
        cors: true

resources:
  Resources:
    SQSQueue:
      Type: 'AWS::SQS::Queue'

S3 Example

custom:
  apiGatewayServiceProxies:
    - s3:
        path: /s3/{key}
        method: post
        action: PutObject
        bucket:
          Ref: S3Bucket
        key:
          pathParam: key
        cors: true

resources:
  Resources:
    S3Bucket:
      Type: 'AWS::S3::Bucket'

SNS Example

custom:
  apiGatewayServiceProxies:
    - sns:
        path: /sns
        method: post
        topicName: { 'Fn::GetAtt': ['SNSTopic', 'TopicName'] }
        cors: true

resources:
  Resources:
    SNSTopic:
      Type: AWS::SNS::Topic

DynamoDB Example

custom:
  apiGatewayServiceProxies:
    - dynamodb:
        path: /dynamodb/{id}
        method: put
        tableName: { Ref: 'YourTable' }
        hashKey:
          pathParam: id
          attributeType: S
        action: PutItem
        cors: true

resources:
  Resources:
    YourTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: YourTable
        AttributeDefinitions:
          - AttributeName: id
            AttributeType: S
        KeySchema:
          - AttributeName: id
            KeyType: HASH
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1

EventBridge Example

custom:
  apiGatewayServiceProxies:
    - eventbridge:
        path: /eventbridge
        method: post
        source: 'custom_source'
        detailType: 'custom_detail_type'
        eventBusName: { Ref: 'YourBusName' }
        cors: true

resources:
  Resources:
    YourBus:
      Type: AWS::Events::EventBus
      Properties:
        Name: YourEventBus

Common Features

Enabling CORS

Add CORS support to any endpoint:

custom:
  apiGatewayServiceProxies:
    - kinesis:
        path: /kinesis
        method: post
        streamName: { Ref: 'YourStream' }
        cors: true # Enable CORS with default settings

For more granular control:

cors:
  origin: '*'
  headers:
    - Content-Type
    - X-Amz-Date
    - Authorization
    - X-Api-Key
  allowCredentials: false

Adding Authorization

custom:
  apiGatewayServiceProxies:
    - sqs:
        path: /sqs
        method: post
        queueName: { 'Fn::GetAtt': ['SQSQueue', 'QueueName'] }
        authorizationType: 'AWS_IAM' # Options: 'NONE', 'AWS_IAM', 'CUSTOM', 'COGNITO_USER_POOLS'

Why This Fork?

The original project has compatibility issues with Serverless Framework v4, specifically:

• In Serverless v4, the internal path structure changed, causing the error: Cannot find module 'serverless/lib/plugins/aws/package/compile/events/api-gateway/lib/rest-api'
• This fork updates the dependencies and fixes these compatibility issues to work with the latest version of the Serverless Framework (v4+)

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT