template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  Generic SMS Adapter

  SAM Template for the Generic SMS Adapter

Parameters:
  CodeBucketName:
    Type: String
    Default: 'aws-websockets-adaptor'
    Description: (Required) The name of the S3 bucket where the Lambda function code is stored. Minimum 3 characters
 
  ExposeType:
    Type: String
    Default: 'FunctionUrl'
    AllowedValues: ['FunctionUrl', 'ApiGateway']
    Description: (Required) The type of exposure for the API. FunctionUrl or ApiGateway

Conditions:
  IsFunctionUrlAuth: !Equals [!Ref ExposeType, "FunctionUrl"]
  IsApiGatewayAuth: !Equals [!Ref ExposeType, "ApiGateway"]

Resources:
  GenericSmsAdapterApi:
    Type: AWS::ApiGatewayV2::Api
    Properties:
      Name: generic-sms-adapter-api
      ProtocolType: HTTP
    Condition: IsApiGatewayAuth
    
  ProxyRoute:
    Type: AWS::ApiGatewayV2::Route
    Properties:
      ApiId: !Ref GenericSmsAdapterApi
      RouteKey: 'POST /send'
      AuthorizationType: NONE
      OperationName: ApiEndpoints
      Target: !Join
        - '/'
        - - 'integrations'
          - !Ref ProxyRouteAnyMethod
    Condition: IsApiGatewayAuth
    
  ProxyRouteAnyMethod:
    Type: AWS::ApiGatewayV2::Integration
    Properties:
      ApiId: !Ref GenericSmsAdapterApi
      PayloadFormatVersion: '2.0'
      Description: ProxyRoute Integration
      IntegrationType: AWS_PROXY
      IntegrationUri:
        Fn::Sub:
          arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${GenericSmsAdapterApiLambdaFunction.Arn}/invocations
    Condition: IsApiGatewayAuth
  
  Deployment:
    Type: AWS::ApiGatewayV2::Deployment
    DependsOn:
      - ProxyRoute
    Properties:
      ApiId: !Ref GenericSmsAdapterApi
    Condition: IsApiGatewayAuth
    
  Stage:
    Type: AWS::ApiGatewayV2::Stage
    Properties:
      StageName: prod
      Description: Prod Stage
      DeploymentId: !Ref Deployment
      ApiId: !Ref GenericSmsAdapterApi
    Condition: IsApiGatewayAuth
    
  GenericSmsAdapterApiLambdaFunctionPermission:
    Type: AWS::Lambda::Permission
    DependsOn:
      - GenericSmsAdapterApi
    Properties:
      Action: lambda:InvokeFunction
      FunctionName: !Ref GenericSmsAdapterApiLambdaFunction
      Principal: apigateway.amazonaws.com
    Condition: IsApiGatewayAuth
  
  GenericSmsAdapterApiLambdaFunction:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: GenericSmsAdapterApiLambdaFunction
      CodeUri:
        Bucket: !Ref CodeBucketName
        Key: deploy.zip
      Handler: FunctionHandler::FunctionHandler.Entrypoint::Handler
      Role: !GetAtt GenericSmsAdapterApiLambdaFunctionExecutionRole.Arn
      MemorySize: 512
      Timeout: 180
      Runtime: dotnet8
      
  GenericSmsAdapterApiLambdaFunctionUrl:
    Type: AWS::Lambda::Url
    Properties:
      AuthType: NONE
      TargetFunctionArn: !Ref GenericSmsAdapterApiLambdaFunction
    Condition: IsFunctionUrlAuth
  
  GenericSmsAdapterApiLambdaFunctionUrlPermission:
    Type: AWS::Lambda::Permission
    DependsOn:
      - GenericSmsAdapterApiLambdaFunction
    Properties:
      Action: lambda:InvokeFunctionUrl
      FunctionName: !Ref GenericSmsAdapterApiLambdaFunction
      FunctionUrlAuthType: 'NONE'
      Principal: "*"  
  GenericSmsAdapterApiLambdaFunctionLogGroup:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: !Sub "/aws/lambda/GenericSmsAdapterApiLambdaFunction"
      RetentionInDays: 14
  
  GenericSmsAdapterApiLambdaFunctionExecutionRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - lambda.amazonaws.com
            Action:
              - sts:AssumeRole
      Policies:
        - PolicyName: allowLambdaLogs
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Effect: Allow
                Action:
                  - logs:*
                Resource: arn:aws:logs:*:*:*
        - PolicyName: allowParameterStore
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Effect: Allow
                Action:
                  - ssm:GetParameter
                  - ssm:GetParametersByPath
                Resource: '*'

        - PolicyName: allowS3AsAdmin
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Effect: Allow
                Action:
                  - s3:*
                Resource: '*'
  
  
  GenericSmsAdapterApiSettings:
    Type: AWS::SSM::Parameter
    Properties:
      Name: /generic-sms-adapter/Settings
      Type: String
      Value: '{"ApiKey":"api-key","DefaultProvider":"NetGsm","Twilio":{"AccountSid":"account-sid","AuthToken":"auth-token","From":"","IsEnabled":true,"AllowedCountryCodes":[]},"NetGsm":{"BaseUrl":"https://api.netgsm.com.tr/","Username":"","Password":"","IsEnabled":true,"AllowedCountryCodes":[]}}'
      Description: GenericSmsAdapterApiSettings