Cadana Milestones API

openapi: 3.0.0
info:
  description: APIs for interacting with Cadana Embedded Consumer Wallets
  version: 1.0.0
  title: Embedded Consumer Wallets Balances Milestones API
  termsOfService: https://cadanapay.com/terms-and-conditions
  contact:
    email: api@cadanapay.com
  license:
    name: Apache 2.0
    url: http://www.apache.org/licenses/LICENSE-2.0.html
servers:
- url: https://api.cadanapay.com
  description: Prod Server
- url: https://dev-api.cadanapay.com
  description: Dev Server
security:
- Authorization: []
tags:
- name: Milestones
  description: APIs for milestone-based contractor pay
paths:
  /v1/persons/{personId}/milestones:
    get:
      summary: List milestones
      description: List a milestone-type contractor's milestones. Set `includeDocuments=true` to receive presigned document download URLs.
      operationId: getPersonMilestones
      tags:
      - Milestones
      parameters:
      - $ref: '#/components/parameters/personId'
      - $ref: '#/components/parameters/XMultiTenantKey'
      - name: includeDocuments
        in: query
        required: false
        description: When true, each milestone's documents are returned as presigned download URLs
        schema:
          type: boolean
          default: false
      responses:
        '200':
          $ref: '#/components/responses/GetMilestonesResponse'
        '400':
          $ref: '#/components/responses/BadRequestError'
        '404':
          $ref: '#/components/responses/NotFoundError'
        5XX:
          $ref: '#/components/responses/InternalError'
      security:
      - Authorization: []
    post:
      summary: Add milestone
      description: Add a milestone (deliverable) to a milestone-type contractor. `documentIds` are file ids from the upload-url flow (POST /v1/files/upload-url with purpose `milestone-document`).
      operationId: addPersonMilestone
      tags:
      - Milestones
      parameters:
      - $ref: '#/components/parameters/personId'
      - $ref: '#/components/parameters/XMultiTenantKey'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AddMilestoneRequest'
      responses:
        '200':
          $ref: '#/components/responses/CreateMilestoneResponse'
        '400':
          $ref: '#/components/responses/BadRequestError'
        '404':
          $ref: '#/components/responses/NotFoundError'
        5XX:
          $ref: '#/components/responses/InternalError'
      security:
      - Authorization: []
  /v1/persons/{personId}/milestones/{milestoneId}:
    put:
      summary: Update milestone
      description: Update a planned milestone. `documentIds` are file ids from the upload-url flow and replace the milestone's documents.
      operationId: updatePersonMilestone
      tags:
      - Milestones
      parameters:
      - $ref: '#/components/parameters/personId'
      - $ref: '#/components/parameters/milestoneId'
      - $ref: '#/components/parameters/XMultiTenantKey'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateMilestoneRequest'
      responses:
        '204':
          description: Milestone updated successfully
        '400':
          $ref: '#/components/responses/BadRequestError'
        '404':
          $ref: '#/components/responses/NotFoundError'
        5XX:
          $ref: '#/components/responses/InternalError'
      security:
      - Authorization: []
    delete:
      summary: Delete milestone
      description: Delete a planned milestone.
      operationId: deletePersonMilestone
      tags:
      - Milestones
      parameters:
      - $ref: '#/components/parameters/personId'
      - $ref: '#/components/parameters/milestoneId'
      - $ref: '#/components/parameters/XMultiTenantKey'
      responses:
        '204':
          description: Milestone deleted successfully
        '400':
          $ref: '#/components/responses/BadRequestError'
        '404':
          $ref: '#/components/responses/NotFoundError'
        5XX:
          $ref: '#/components/responses/InternalError'
      security:
      - Authorization: []
  /v1/persons/{personId}/milestones/{milestoneId}/complete:
    post:
      summary: Complete milestone
      description: Mark a planned or rejected milestone complete. Generates a contractor invoice and returns its `invoiceId`, and moves the milestone to `Submitted`. As that invoice is approved, rejected, or paid, the milestone status updates to match.
      operationId: completePersonMilestone
      tags:
      - Milestones
      parameters:
      - $ref: '#/components/parameters/personId'
      - $ref: '#/components/parameters/milestoneId'
      - $ref: '#/components/parameters/XMultiTenantKey'
      responses:
        '200':
          $ref: '#/components/responses/CreateMilestoneResponse'
        '400':
          $ref: '#/components/responses/BadRequestError'
        '404':
          $ref: '#/components/responses/NotFoundError'
        5XX:
          $ref: '#/components/responses/InternalError'
      security:
      - Authorization: []
components:
  schemas:
    Milestone:
      type: object
      properties:
        id:
          $ref: '#/components/schemas/uuid'
        title:
          type: string
        description:
          type: string
        amount:
          $ref: '#/components/schemas/amount'
        dueDate:
          type: string
        documents:
          type: array
          description: Attached documents (presigned download URL + original file name); present only when includeDocuments=true
          items:
            type: object
            properties:
              url:
                type: string
                description: Presigned download URL (~60-minute TTL)
              fileName:
                type: string
                description: Original upload name, or a generated fallback (e.g. document-1a2b3c4d.pdf) when none was supplied
        status:
          type: string
          enum:
          - Planned
          - Submitted
          - Approved
          - Rejected
          - Paid
        rejectionReason:
          type: string
          description: Why the milestone's invoice was rejected; present only when status is Rejected
        invoiceId:
          $ref: '#/components/schemas/uuid'
        addedBy:
          type: string
          enum:
          - ADMIN
          - CONTRACTOR
        createdTimestamp:
          type: integer
          format: int64
        updatedTimestamp:
          type: integer
          format: int64
    amount:
      type: object
      required:
      - amount
      - currency
      properties:
        amount:
          type: integer
          description: value in lowest denomination
          example: 10000
        currency:
          type: string
          description: currency
          example: USD
    AddMilestoneRequest:
      type: object
      required:
      - title
      - amount
      properties:
        title:
          type: string
          description: Milestone title; also used as the invoice line-item description on completion
          example: Design phase
        description:
          type: string
          description: Optional milestone description; used as the invoice note on completion
        amount:
          $ref: '#/components/schemas/amount'
        dueDate:
          type: string
          description: Optional due date (YYYY-MM-DD)
          example: '2026-09-30'
        documentIds:
          type: array
          description: File ids from POST /v1/files/upload-url (purpose `milestone-document`); resolved to stored documents
          items:
            $ref: '#/components/schemas/uuid'
    UpdateMilestoneRequest:
      type: object
      required:
      - title
      - amount
      properties:
        title:
          type: string
          example: Design phase
        description:
          type: string
        amount:
          $ref: '#/components/schemas/amount'
        dueDate:
          type: string
          example: '2026-09-30'
        documentIds:
          type: array
          description: File ids from POST /v1/files/upload-url (purpose `milestone-document`); replace the milestone's documents
          items:
            $ref: '#/components/schemas/uuid'
    uuid:
      type: string
      format: uuid
      example: 8ef9a712-cdae-4110-b1ea-9ba95abbee6e
    NotFoundError:
      description: Not Found
      allOf:
      - $ref: '#/components/schemas/Error'
      example:
        code: resource_not_found
        message: Requested resource could not be found.
    InternalError:
      description: Internal server error
      allOf:
      - $ref: '#/components/schemas/Error'
      example:
        code: internal_error
        message: An unexpected error occurred. Please try again later.
    BadRequestError:
      description: Bad input provided by client
      allOf:
      - $ref: '#/components/schemas/Error'
      - type: object
        properties:
          params:
            description: A map for meta data around the error that occurred
            type: object
      example:
        code: invalid_request_body
        message: The request body provided is not valid
        params:
          field: Value is invalid.
    Error:
      type: object
      properties:
        code:
          description: A machine parsable error code
          type: string
          enum:
          - invalid_request_body
          - resource_not_found
          - forbidden
          - internal_error
        message:
          description: A human readable message describing the error
          type: string
  parameters:
    personId:
      name: personId
      in: path
      description: The unique identifier for the person
      required: true
      schema:
        type: string
        format: uuid
    milestoneId:
      name: milestoneId
      in: path
      description: The unique identifier for the milestone
      required: true
      schema:
        type: string
        format: uuid
    XMultiTenantKey:
      name: X-MultiTenantKey
      in: header
      required: false
      schema:
        type: string
      description: Required when using a Platform API token. The tenant key identifying which business to operate on.
  responses:
    NotFoundError:
      description: Requested resource was not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/NotFoundError'
    InternalError:
      description: Internal error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/InternalError'
    CreateMilestoneResponse:
      description: milestone created (or completed) response
      content:
        application/json:
          schema:
            type: object
            properties:
              id:
                $ref: '#/components/schemas/uuid'
    BadRequestError:
      description: Bad input provided by client
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/BadRequestError'
    GetMilestonesResponse:
      description: list of a contractor's milestones
      content:
        application/json:
          schema:
            type: array
            items:
              $ref: '#/components/schemas/Milestone'
  securitySchemes:
    Authorization:
      type: http
      scheme: bearer
      bearerFormat: API_SECRET_KEY
x-readme:
  explorer-enabled: true
  proxy-enabled: true
  samples-enabled: true