DOKU Access Token API

openapi: 3.0.3
info:
  title: DOKU Payment Access Token API
  description: DOKU (PT Nusa Satu Inti Artha) payment APIs for Indonesia. Includes the non-SNAP hosted Checkout API and Bank Indonesia SNAP (Standar Nasional Open API Pembayaran) endpoints for Virtual Account, e-Wallet / Direct Debit, QRIS, and Kirim payout. Checkout uses Client-Id + Request-Id + Request-Timestamp + HMAC-SHA256 Signature headers; SNAP uses an asymmetric SHA256withRSA access token followed by HMAC-SHA512 transaction signatures.
  version: '1.0'
  contact:
    name: DOKU Developer Support
    url: https://developers.doku.com/
  termsOfService: https://www.doku.com/en-us/terms-and-conditions
servers:
- url: https://api.doku.com
  description: Production
- url: https://api-sandbox.doku.com
  description: Sandbox
tags:
- name: Access Token
  description: SNAP B2B / B2B2C access-token issuance.
paths:
  /authorization/v1/access-token/b2b:
    post:
      operationId: getAccessTokenB2B
      tags:
      - Access Token
      summary: Get SNAP B2B access token
      description: Mints a 15-minute Bearer access token. The X-SIGNATURE header is an asymmetric SHA256withRSA signature over "clientId|X-TIMESTAMP".
      security:
      - SnapAsymmetric: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - grantType
              properties:
                grantType:
                  type: string
                  example: client_credentials
      responses:
        '200':
          description: Token issued
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccessTokenResponse'
  /authorization/v1/access-token/b2b2c:
    post:
      operationId: getAccessTokenB2B2C
      tags:
      - Access Token
      summary: Get SNAP B2B2C access token
      description: Mints a customer-scoped B2B2C access token from an auth code.
      security:
      - SnapAsymmetric: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - grantType
              properties:
                grantType:
                  type: string
                  example: authorization_code
                authCode:
                  type: string
      responses:
        '200':
          description: Token issued
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccessTokenResponse'
components:
  schemas:
    AccessTokenResponse:
      type: object
      properties:
        responseCode:
          type: string
        responseMessage:
          type: string
        accessToken:
          type: string
        tokenType:
          type: string
          example: Bearer
        expiresIn:
          type: string
          example: '900'
  securitySchemes:
    CheckoutSignature:
      type: apiKey
      in: header
      name: Signature
      description: Non-SNAP scheme. Send Client-Id, Request-Id, Request-Timestamp and Signature headers. Signature = "HMACSHA256=" + base64(HMAC-SHA256( clientSecret, componentString )) where the component string joins Client-Id, Request-Id, Request-Timestamp, Request-Target and Digest (SHA-256 of the JSON body).
    SnapAsymmetric:
      type: apiKey
      in: header
      name: X-SIGNATURE
      description: SNAP access-token signature. Asymmetric SHA256withRSA over "clientId|X-TIMESTAMP" using the merchant private key. Sent with X-CLIENT-KEY and X-TIMESTAMP.
    SnapSymmetric:
      type: apiKey
      in: header
      name: X-SIGNATURE
      description: SNAP transaction signature. Symmetric HMAC-SHA512 over "HTTPMethod:EndpointUrl:AccessToken:Lowercase(HexEncode(SHA-256(minified body))):X-TIMESTAMP" using the client secret.
    SnapBearer:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: SNAP B2B access token from /authorization/v1/access-token/b2b.