arazzo: 1.0.1
info:
  title: Amazon Keyspaces Update Table Schema
  summary: Add columns to an existing table and wait for it to return to ACTIVE.
  description: >-
    Safely evolves the schema of an existing Amazon Keyspaces table. The
    workflow first reads the table to confirm it is ACTIVE before mutating it,
    issues an UpdateTable request to add new columns, then polls GetTable until
    the service reports the table is ACTIVE again. Amazon Keyspaces uses the AWS
    JSON 1.0 wire protocol, so the write step inlines the documented
    X-Amz-Target header and an application/x-amz-json-1.0 body. The underlying
    OpenAPI description declares no request body schemas, so the payload fields
    follow the canonical AWS Keyspaces UpdateTable request contract.
  version: 1.0.0
sourceDescriptions:
- name: keyspacesApi
  url: ../openapi/amazon-keyspaces-openapi.yml
  type: openapi
workflows:
- workflowId: update-table-schema
  summary: Add columns to a table and poll until the table is ACTIVE again.
  description: >-
    Confirms the table is ACTIVE, adds columns via UpdateTable, then polls
    GetTable until the status returns to ACTIVE.
  inputs:
    type: object
    required:
    - keyspaceName
    - tableName
    - addColumns
    properties:
      keyspaceName:
        type: string
        description: The keyspace that owns the table.
      tableName:
        type: string
        description: The table whose schema is being updated.
      addColumns:
        type: array
        description: >-
          The list of column definitions to add, as defined by the Amazon
          Keyspaces UpdateTable request.
        items:
          type: object
  steps:
  - stepId: confirmActive
    description: >-
      Read the table and confirm it is ACTIVE before applying a schema change.
    operationId: GetTable
    parameters:
    - name: keyspaceName
      in: path
      value: $inputs.keyspaceName
    - name: tableName
      in: path
      value: $inputs.tableName
    - name: X-Amz-Target
      in: header
      value: KeyspacesService.GetTable
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.status == "ACTIVE"
      type: jsonpath
    outputs:
      status: $response.body#/status
  - stepId: addColumns
    description: >-
      Add the supplied columns to the table.
    operationId: UpdateTable
    parameters:
    - name: keyspaceName
      in: path
      value: $inputs.keyspaceName
    - name: tableName
      in: path
      value: $inputs.tableName
    - name: X-Amz-Target
      in: header
      value: KeyspacesService.UpdateTable
    requestBody:
      contentType: application/x-amz-json-1.0
      payload:
        keyspaceName: $inputs.keyspaceName
        tableName: $inputs.tableName
        addColumns: $inputs.addColumns
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      tableArn: $response.body#/resourceArn
  - stepId: waitForActive
    description: >-
      Poll the table until the schema change settles and the service reports the
      status as ACTIVE again. While the status is UPDATING the step loops back
      on itself.
    operationId: GetTable
    parameters:
    - name: keyspaceName
      in: path
      value: $inputs.keyspaceName
    - name: tableName
      in: path
      value: $inputs.tableName
    - name: X-Amz-Target
      in: header
      value: KeyspacesService.GetTable
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
      tableArn: $response.body#/resourceArn
    onSuccess:
    - name: stillUpdating
      type: goto
      stepId: waitForActive
      criteria:
      - context: $response.body
        condition: $.status == "UPDATING"
        type: jsonpath
    - name: settled
      type: end
      criteria:
      - context: $response.body
        condition: $.status == "ACTIVE"
        type: jsonpath
  outputs:
    tableArn: $steps.waitForActive.outputs.tableArn
    status: $steps.waitForActive.outputs.status