Update Function App Settings and Confirm Them

arazzo: 1.0.1
info:
  title: Update Function App Settings and Confirm Them
  summary: Read the current app settings, write a merged set, and list them back to confirm.
  description: >-
    A safe configuration-update flow for a function app's application settings.
    The workflow first reads the current app settings via the list action, then
    writes the caller-supplied settings as a full StringDictionary replacement,
    and finally lists the settings again to confirm the new values are in place.
    Because the settings PUT is a full replacement, the initial read gives the
    caller the prior values to merge against. Every step spells out its ARM
    request inline — including the required api-version query parameter and the
    {properties:{...}} StringDictionary envelope — so the flow can be read and
    executed without opening the underlying OpenAPI description. All requests are
    authorized with the azure_auth OAuth2 bearer token carried by the Azure
    Resource Manager endpoint.
  version: 1.0.0
sourceDescriptions:
- name: azureFunctionsApi
  url: ../openapi/azure-functions-management-api.json
  type: openapi
workflows:
- workflowId: update-app-settings
  summary: Read, replace, and confirm a function app's application settings.
  description: >-
    Lists current app settings, replaces them with the supplied StringDictionary,
    and lists them again to confirm the update.
  inputs:
    type: object
    required:
    - subscriptionId
    - resourceGroupName
    - name
    - settings
    properties:
      subscriptionId:
        type: string
        description: The Azure subscription identifier (GUID).
      resourceGroupName:
        type: string
        description: The resource group that contains the function app.
      name:
        type: string
        description: The name of the function app.
      settings:
        type: object
        description: The complete map of app setting name/value pairs to write (full replacement).
      apiVersion:
        type: string
        description: The ARM api-version to use for all requests.
        default: "2024-11-01"
  steps:
  - stepId: readCurrentSettings
    description: >-
      List the current application settings before overwriting them so the caller
      retains the prior values for merging.
    operationId: WebApps_ListApplicationSettings
    parameters:
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: subscriptionId
      in: path
      value: $inputs.subscriptionId
    - name: resourceGroupName
      in: path
      value: $inputs.resourceGroupName
    - name: name
      in: path
      value: $inputs.name
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      previousSettings: $response.body#/properties
    onSuccess:
    - name: write
      type: goto
      stepId: writeSettings
  - stepId: writeSettings
    description: >-
      Replace the application settings with the supplied StringDictionary. This
      is a full replacement, so the payload must contain all settings to retain.
    operationId: WebApps_UpdateApplicationSettings
    parameters:
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: subscriptionId
      in: path
      value: $inputs.subscriptionId
    - name: resourceGroupName
      in: path
      value: $inputs.resourceGroupName
    - name: name
      in: path
      value: $inputs.name
    requestBody:
      contentType: application/json
      payload:
        properties: $inputs.settings
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      writtenSettings: $response.body#/properties
    onSuccess:
    - name: confirm
      type: goto
      stepId: confirmSettings
  - stepId: confirmSettings
    description: >-
      List the application settings again to confirm the new values are in place.
    operationId: WebApps_ListApplicationSettings
    parameters:
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: subscriptionId
      in: path
      value: $inputs.subscriptionId
    - name: resourceGroupName
      in: path
      value: $inputs.resourceGroupName
    - name: name
      in: path
      value: $inputs.name
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      currentSettings: $response.body#/properties
  outputs:
    previousSettings: $steps.readCurrentSettings.outputs.previousSettings
    currentSettings: $steps.confirmSettings.outputs.currentSettings