openapi: 3.0.3
info:
  title: Tropic Contracts Requests API
  description: The Tropic public API enables organizations to connect Tropic with other software in their stack, creating a connected spend and procurement ecosystem. The API supports building custom integrations for tools that do not have pre-built connectors, including contract management, supplier management, procurement requests, and webhook configuration.
  version: 1.0.0
  contact:
    name: Tropic Support
    url: https://help.tropicapp.io
  termsOfService: https://www.tropicapp.io/terms
servers:
- url: https://api.tropicapp.io/v1
  description: Tropic Production API
security:
- BearerAuth: []
tags:
- name: Requests
  description: Manage procurement requests and approvals
paths:
  /requests:
    get:
      summary: List Requests
      description: Returns a paginated list of procurement requests.
      operationId: listRequests
      tags:
      - Requests
      parameters:
      - name: page
        in: query
        schema:
          type: integer
          default: 1
      - name: per_page
        in: query
        schema:
          type: integer
          default: 25
      - name: status
        in: query
        description: Filter by request status
        schema:
          type: string
          enum:
          - draft
          - pending_approval
          - approved
          - rejected
          - cancelled
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/ProcurementRequest'
                  meta:
                    $ref: '#/components/schemas/PaginationMeta'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      summary: Create Request
      description: Creates a new procurement request.
      operationId: createRequest
      tags:
      - Requests
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ProcurementRequestCreate'
      responses:
        '201':
          description: Request created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProcurementRequest'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /requests/{id}:
    get:
      summary: Get Request
      description: Returns a single procurement request by ID.
      operationId: getRequest
      tags:
      - Requests
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProcurementRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /requests/{id}/approve:
    post:
      summary: Approve Request
      description: Approves a pending procurement request.
      operationId: approveRequest
      tags:
      - Requests
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                notes:
                  type: string
                  description: Approval notes
      responses:
        '200':
          description: Request approved
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProcurementRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /requests/{id}/reject:
    post:
      summary: Reject Request
      description: Rejects a pending procurement request.
      operationId: rejectRequest
      tags:
      - Requests
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                reason:
                  type: string
                  description: Rejection reason
      responses:
        '200':
          description: Request rejected
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProcurementRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    ProcurementRequestCreate:
      type: object
      required:
      - title
      - amount
      properties:
        title:
          type: string
        description:
          type: string
        supplier_id:
          type: string
        amount:
          type: number
        currency:
          type: string
          default: USD
        category:
          type: string
    PaginationMeta:
      type: object
      properties:
        total:
          type: integer
        page:
          type: integer
        per_page:
          type: integer
        total_pages:
          type: integer
    ProcurementRequest:
      type: object
      properties:
        id:
          type: string
          description: Unique request identifier
        title:
          type: string
          description: Request title
        description:
          type: string
        requester_id:
          type: string
          description: User ID of requester
        supplier_id:
          type: string
        status:
          type: string
          enum:
          - draft
          - pending_approval
          - approved
          - rejected
          - cancelled
        amount:
          type: number
          description: Requested amount in USD
        currency:
          type: string
          default: USD
        category:
          type: string
          description: Spend category
        approver_id:
          type: string
        approved_at:
          type: string
          format: date-time
        rejected_at:
          type: string
          format: date-time
        rejection_reason:
          type: string
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
  responses:
    BadRequest:
      description: Bad request - invalid parameters
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
              details:
                type: object
    Unauthorized:
      description: Unauthorized - invalid or missing API key
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: API key issued from the Tropic settings panel