openapi: 3.2.0
info:
  termsOfService: https://iterable.com/terms/
  title: Iterable Subscriptions API
  version: '1.8'
servers:
- url: https://api.iterable.com/
security:
- api_key: []
tags:
- name: subscriptions
paths:
  /api/subscriptions/subscribeToDoubleOptIn:
    post:
      description: 'This endpoint triggers a double opt-in subscription for a user. <br/><br/>Once the user responds to the subscription confirmation message, they will be subscribed to the message types specified in the request body. <br/><br/>This endpoint can only be used with SMS, double opt-in message types. To enable it, contact your customer success manager.<br/><br/>Learn about <a href="https://support.iterable.com/hc/articles/29156459027348">identifying users by <code>userId</code> and <code>email</code></a>.<br/><br/><b>Response Format Notes:</b><ul><li>202 Accepted: Plain text (e.g., ''Request for double opt-in subscription accepted'')</li><li>204 No Content: Returned when user is already subscribed to all requested message types (no body)</li><li>400 Bad Request (JSON parsing error): JSON <code>{error, message, code, data}</code></li><li>400 Bad Request (validation error): Plain text (e.g., ''User not found for userId: X or email: Y'')</li><li>404 Not Found: JSON <code>{msg, code, params}</code> (returned when feature is not enabled)</li><li>500 Internal Server Error: Plain text</li></ul>'
      operationId: subscribeSingleUserToDoubleOptIn
      responses:
        '202':
          description: 'Request accepted (plain text: ''Request for double opt-in subscription accepted'')'
        '204':
          description: No content - user is already subscribed to all requested message types
        '400':
          description: 'Invalid parameters - returns EITHER JSON {error, message, code, data} for request parsing errors OR plain text for validation errors (e.g., ''User not found for userId: X or email: Y'')'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorHttpResponse'
        '401':
          description: 'Invalid API key (JSON: {msg, code, params})'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IterableApiResponse'
        '404':
          description: 'Endpoint not found (JSON: {msg, code, params})'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IterableApiResponse'
        '500':
          description: Internal server error (plain text)
      summary: Trigger a double opt-in subscription flow
      tags:
      - subscriptions
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DoubleOptInSubscriptionsRequest'
        description: Create a double opt-in subscription request
        required: true
  /api/subscriptions/{subscriptionGroup}/{subscriptionGroupId}:
    put:
      description: Subscribes or unsubscribes multiple users to the specified subscription group. In <code>users</code>, list <code>email</code> addresses. In <code>usersByUserId</code>, list <code>userId</code> values. A single request can include both <code>users</code> and <code>usersByUserId</code>. To enable this API, contact your customer success manager.<br/><br/>Learn about <a href="https://support.iterable.com/hc/articles/29156459027348">identifying users by <code>userId</code> and <code>email</code></a>.
      operationId: Bulk subscription action
      parameters:
      - description: 'Subscription group (i.e.: emailList, messageType, messageChannel) [Alphanumeric, case insensitive]'
        in: path
        name: subscriptionGroup
        required: true
        schema:
          type: string
      - description: Subscription Group Id [Numeric]
        in: path
        name: subscriptionGroupId
        required: true
        schema:
          type: integer
          format: int64
      - description: subscribe or unsubscribe
        in: query
        name: action
        required: true
        schema:
          type: string
          default: subscribe
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IterableApiResponse'
        '202':
          description: Accepted a request for bulk subscription actions
        '400':
          description: Invalid parameters
        '401':
          description: Invalid API key
        '404':
          description: Endpoint not found
        '409':
          description: Email/userId conflict
      summary: Bulk subscription action on a list of users
      tags:
      - subscriptions
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BulkSubscriptionActionRequest'
        description: user email
        required: true
  /api/subscriptions/{subscriptionGroup}/{subscriptionGroupId}/byUserId/{userId}:
    delete:
      description: Unsubscribes a user from the specified subscription group. To enable this API, contact your customer success manager.<br/><br/>Learn about <a href="https://support.iterable.com/hc/articles/29156459027348">identifying users by <code>userId</code> and <code>email</code></a>.
      operationId: unsubscribeSingleUserByUserId
      parameters:
      - description: 'Subscription group (i.e.: emailList, messageType, messageChannel) [Alphanumeric, case insensitive]'
        in: path
        name: subscriptionGroup
        required: true
        schema:
          type: string
      - description: Subscription Group Id [Numeric]
        in: path
        name: subscriptionGroupId
        required: true
        schema:
          type: integer
          format: int64
      - description: User's userId
        in: path
        name: userId
        required: true
        schema:
          type: string
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IterableApiResponse'
        '202':
          description: Accepted a request to unsubscribe
        '400':
          description: Invalid parameters
        '401':
          description: Invalid API key
        '404':
          description: Endpoint not found
        '409':
          description: Email/userId conflict
      summary: Unsubscribe a single user by userId
      tags:
      - subscriptions
    patch:
      description: Subscribes a user to the specified subscription group. To enable this API, contact your customer success manager.<br/><br/>Learn about <a href="https://support.iterable.com/hc/articles/29156459027348">identifying users by <code>userId</code> and <code>email</code></a>.
      operationId: subscribeSingleUserByUserId
      parameters:
      - description: 'Subscription group (i.e.: emailList, messageType, messageChannel) [Alphanumeric, case insensitive]'
        in: path
        name: subscriptionGroup
        required: true
        schema:
          type: string
      - description: Subscription Group Id [Numeric]
        in: path
        name: subscriptionGroupId
        required: true
        schema:
          type: integer
          format: int64
      - description: User's userId
        in: path
        name: userId
        required: true
        schema:
          type: string
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IterableApiResponse'
        '202':
          description: Accepted a request to subscribe
        '400':
          description: Invalid parameters
        '401':
          description: Invalid API key
        '404':
          description: Endpoint not found
        '409':
          description: Email/userId conflict
      summary: Subscribe a single user by their userId
      tags:
      - subscriptions
  /api/subscriptions/{subscriptionGroup}/{subscriptionGroupId}/user/{userEmail}:
    delete:
      description: Unsubscribes a user from the specified subscription group. To enable this API, contact your customer success manager.<br/><br/>Learn about <a href="https://support.iterable.com/hc/articles/29156459027348">identifying users by <code>userId</code> and <code>email</code></a>.
      operationId: unsubscribeSingleUser
      parameters:
      - description: 'Subscription group (i.e.: emailList, messageType, messageChannel) [Alphanumeric, case insensitive]'
        in: path
        name: subscriptionGroup
        required: true
        schema:
          type: string
      - description: Subscription Group Id [Numeric]
        in: path
        name: subscriptionGroupId
        required: true
        schema:
          type: integer
          format: int64
      - description: User's Email [Alphanumeric]
        in: path
        name: userEmail
        required: true
        schema:
          type: string
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IterableApiResponse'
        '202':
          description: Accepted a request to unsubscribe
        '400':
          description: Invalid parameters
        '401':
          description: Invalid API key
        '404':
          description: Endpoint not found
        '409':
          description: Email/userId conflict
      summary: Unsubscribe a single user
      tags:
      - subscriptions
    patch:
      description: Subscribes a user to the specified subscription group. To enable this API, contact your customer success manager.<br/><br/>Learn about <a href="https://support.iterable.com/hc/articles/29156459027348">identifying users by <code>userId</code> and <code>email</code></a>.
      operationId: subscribeSingleUser
      parameters:
      - description: 'Subscription group (i.e.: emailList, messageType, messageChannel) [Alphanumeric, case insensitive]'
        in: path
        name: subscriptionGroup
        required: true
        schema:
          type: string
      - description: Subscription Group Id [Numeric]
        in: path
        name: subscriptionGroupId
        required: true
        schema:
          type: integer
          format: int64
      - description: User's Email [Alphanumeric]
        in: path
        name: userEmail
        required: true
        schema:
          type: string
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IterableApiResponse'
        '202':
          description: Accepted a request to subscribe
        '400':
          description: Invalid parameters
        '401':
          description: Invalid API key
        '404':
          description: Endpoint not found
        '409':
          description: Email/userId conflict
      summary: Subscribe a single user
      tags:
      - subscriptions
components:
  schemas:
    ErrorHttpResponse:
      properties:
        code:
          type: string
        data:
          $ref: '#/components/schemas/JsObject'
        error:
          $ref: '#/components/schemas/ErrorWithStatus'
        message:
          type: string
      required:
      - code
      - data
      - error
      - message
      type: object
    ErrorWithStatus:
      properties:
        status:
          $ref: '#/components/schemas/Status'
      required:
      - status
      type: object
    Cookie:
      properties:
        asJava:
          $ref: '#/components/schemas/Cookie'
        domain:
          type: string
        httpOnly:
          type: boolean
        maxAge:
          type: object
        name:
          type: string
        path:
          type: string
        sameSite:
          $ref: '#/components/schemas/SameSite'
        secure:
          type: boolean
        value:
          type: string
      required:
      - asJava
      - httpOnly
      - name
      - path
      - secure
      - value
      type: object
    Status:
      properties:
        attrs:
          $ref: '#/components/schemas/TypedMap'
        body:
          $ref: '#/components/schemas/HttpEntity'
        header:
          $ref: '#/components/schemas/ResponseHeader'
        newCookies:
          items:
            $ref: '#/components/schemas/Cookie'
          type: array
        newFlash:
          $ref: '#/components/schemas/Flash'
        newSession:
          $ref: '#/components/schemas/Session'
      required:
      - attrs
      - body
      - header
      - newCookies
      type: object
    Flash:
      properties:
        asJava:
          $ref: '#/components/schemas/Flash'
        data:
          additionalProperties:
            type: string
          type: object
        empty:
          type: boolean
      required:
      - asJava
      - data
      - empty
      type: object
    Session:
      properties:
        asJava:
          $ref: '#/components/schemas/Session'
        data:
          additionalProperties:
            type: string
          type: object
        empty:
          type: boolean
      required:
      - asJava
      - data
      - empty
      type: object
    BulkSubscriptionActionRequest:
      properties:
        users:
          description: Users to subscribe/unsubscribe, identified by <code>email</code>.
          items:
            type: string
          type: array
        usersByUserId:
          description: Users to subscribe/unsubscribe, identified by <code>userId</code>.
          items:
            type: string
          type: array
      type: object
    DoubleOptInSubscriptionsRequest:
      properties:
        brandName:
          description: 'To provide context, every double opt-in confirmation message includes a brand name. The value to use for this brand name is determined by (in priority order): the <code>brandName</code> included in the request body (if specified), the default brand name associated with the specified message types (if those message types all have the same default brand name), or a comma-separated, de-duplicated list of default brand names associated with the specified message types (if those message types have different default brand names).'
          type: string
        email:
          description: An email address that identifies a user profile in Iterable. Provide an <code>email</code> or a <code>userId</code> (but not both), depending on <a href="https://support.iterable.com/hc/articles/29156459027348">how your project identifies users</a>.
          type: string
        messageTypeIds:
          description: List of SMS, double opt-in message type IDs to which the user should be subscribed.
          items:
            type: object
          type: array
        phoneNumber:
          description: The <code>phoneNumber</code> to set on the specified user's profile.
          type: string
        userId:
          description: A user ID that identifies a user profile in Iterable. Provide an <code>email</code> or a <code>userId</code> (but not both), depending on <a href="https://support.iterable.com/hc/articles/29156459027348">how your project identifies users</a>.
          type: string
      required:
      - messageTypeIds
      type: object
    JsObject:
      properties:
        underlying:
          additionalProperties:
            $ref: '#/components/schemas/JsValue'
          type: object
      required:
      - underlying
      type: object
    SameSite:
      properties:
        value:
          type: string
      required:
      - value
      type: object
    ResponseHeader:
      properties:
        headers:
          additionalProperties:
            type: string
          type: object
        reasonPhrase:
          type: string
        status:
          format: int32
          type: integer
      required:
      - headers
      - status
      type: object
    JsValue:
      type: object
    IterableApiResponse:
      properties:
        code:
          enum:
          - Success
          - BadApiKey
          - BadAuthorizationHeader
          - BadJsonBody
          - BadParams
          - BatchTooLarge
          - DatabaseError
          - EmailAlreadyExists
          - ExternalKeyConflict
          - Forbidden
          - ForbiddenParamsError
          - ForgottenUserError
          - GenericError
          - InvalidEmailAddressError
          - InvalidJwtPayload
          - InvalidUserIdError
          - JwtUserIdentifiersMismatched
          - NotFound
          - QueueEmailError
          - RateLimitExceeded
          - RequestFieldsTypesMismatched
          - Unauthorized
          - UniqueFieldsLimitExceeded
          - UnknownEmailError
          - UnknownUserIdError
          - UserIdAlreadyExists
          type: string
        msg:
          description: Response description
          type: string
        params:
          description: Additional info
          type: object
      required:
      - code
      - msg
      type: object
    HttpEntity:
      properties:
        knownEmpty:
          type: boolean
      required:
      - knownEmpty
      type: object
    TypedMap:
      type: object
  securitySchemes:
    api_key:
      in: header
      name: Api-Key
      type: apiKey