Microsoft Entra Rotate Application Secret

arazzo: 1.0.1
info:
  title: Microsoft Entra Rotate Application Secret
  summary: Add a fresh client secret to an app, then remove the old one.
  description: >-
    Performs a zero-downtime client secret rotation for an application
    registration in Microsoft Entra ID. A new password credential is added
    first (the response carries the secretText that is only ever returned at
    creation time), and only then is the previous secret removed by keyId so
    callers always have at least one valid credential during the swap. Every
    request is written inline so the rotation reads end to end.
  version: 1.0.0
sourceDescriptions:
- name: graphIdentityApi
  url: ../openapi/microsoft-entra-graph-identity-openapi.yml
  type: openapi
workflows:
- workflowId: rotate-application-secret
  summary: Add a new client secret then revoke the prior secret by keyId.
  description: >-
    Adds a new password credential to an application and removes the old
    credential, ensuring continuous coverage during the rotation.
  inputs:
    type: object
    required:
    - accessToken
    - applicationId
    - newSecretDisplayName
    - oldKeyId
    properties:
      accessToken:
        type: string
        description: OAuth 2.0 bearer token with Application.ReadWrite.All.
      applicationId:
        type: string
        description: Object id of the application (not the appId).
      newSecretDisplayName:
        type: string
        description: Friendly name for the new password credential.
      endDateTime:
        type: string
        description: Expiry timestamp for the new secret (ISO 8601 date-time).
        default: "2027-01-15T10:30:00Z"
      oldKeyId:
        type: string
        description: keyId of the existing password credential to remove.
  steps:
  - stepId: addSecret
    description: >-
      Add a new password credential to the application and capture the
      one-time secretText from the response.
    operationId: addApplicationPassword
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: application-id
      in: path
      value: $inputs.applicationId
    requestBody:
      contentType: application/json
      payload:
        displayName: $inputs.newSecretDisplayName
        endDateTime: $inputs.endDateTime
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      newKeyId: $response.body#/keyId
      secretText: $response.body#/secretText
  - stepId: removeOldSecret
    description: >-
      Remove the prior password credential by keyId now that the replacement
      is in place.
    operationId: removeApplicationPassword
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: application-id
      in: path
      value: $inputs.applicationId
    requestBody:
      contentType: application/json
      payload:
        keyId: $inputs.oldKeyId
    successCriteria:
    - condition: $statusCode == 204
    outputs:
      removeStatus: $statusCode
  outputs:
    newKeyId: $steps.addSecret.outputs.newKeyId
    secretText: $steps.addSecret.outputs.secretText