AWS API Gateway Add a Method and Redeploy

arazzo: 1.0.1
info:
  title: AWS API Gateway Add a Method and Redeploy
  summary: Verify a REST API exists, attach a method to one of its resources, and publish a fresh deployment.
  description: >-
    A common iteration on an existing Amazon API Gateway V1 REST API. The
    workflow confirms the REST API exists, lists its resources to pick a target
    resource, puts a new HTTP method on that resource, and then creates a fresh
    deployment so the change is reflected on a stage. Every step spells out its
    request inline so the flow can be read and executed without opening the
    underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: apiGatewayV1
  url: ../openapi/aws-api-gateway-v1-openapi.yml
  type: openapi
workflows:
- workflowId: add-method-and-redeploy
  summary: Attach a method to an existing REST API resource and redeploy.
  description: >-
    Confirms the REST API, resolves a resource, puts a method, and creates a
    deployment to publish the change.
  inputs:
    type: object
    required:
    - restApiId
    - httpMethod
    - stageName
    properties:
      restApiId:
        type: string
        description: Identifier of the existing REST API.
      resourceId:
        type: string
        description: Optional explicit resource id; when omitted the first listed resource is used.
      httpMethod:
        type: string
        description: HTTP verb to add to the resource.
      authorizationType:
        type: string
        description: Authorization type for the method.
      apiKeyRequired:
        type: boolean
        description: Whether the method requires an API key.
      stageName:
        type: string
        description: Stage to publish the redeployment to.
  steps:
  - stepId: confirmRestApi
    description: Confirm the target REST API exists before modifying it.
    operationId: getRestApi
    parameters:
    - name: restapi_id
      in: path
      value: $inputs.restApiId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      restApiId: $response.body#/id
  - stepId: listResources
    description: List the resources for the REST API to obtain a target resource id.
    operationId: getResources
    parameters:
    - name: restapi_id
      in: path
      value: $inputs.restApiId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      firstResourceId: $response.body#/items/0/id
  - stepId: putMethod
    description: Add the requested HTTP method to the resolved resource.
    operationId: putMethod
    parameters:
    - name: restapi_id
      in: path
      value: $inputs.restApiId
    - name: resource_id
      in: path
      value: $steps.listResources.outputs.firstResourceId
    - name: http_method
      in: path
      value: $inputs.httpMethod
    requestBody:
      contentType: application/json
      payload:
        authorizationType: $inputs.authorizationType
        apiKeyRequired: $inputs.apiKeyRequired
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      methodHttpMethod: $response.body#/httpMethod
  - stepId: redeploy
    description: Create a deployment so the new method is published to the stage.
    operationId: createDeployment
    parameters:
    - name: restapi_id
      in: path
      value: $inputs.restApiId
    requestBody:
      contentType: application/json
      payload:
        stageName: $inputs.stageName
        description: Redeployment after adding a method.
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      deploymentId: $response.body#/id
  outputs:
    methodHttpMethod: $steps.putMethod.outputs.methodHttpMethod
    deploymentId: $steps.redeploy.outputs.deploymentId