generated: '2026-07-17'
method: searched
docs: https://developers.doku.com/accept-payments/direct-api/snap/integration-guide/get-token-api/b2b
source: openapi/doku-openapi.yml + developers.doku.com
summary:
  types:
  - apiKey
  - http
  notes: >-
    DOKU runs two distinct request-signing models. (1) Non-SNAP (Checkout and
    legacy Direct API): request-level HMAC-SHA256 signature carried in a
    Signature header alongside Client-Id, Request-Id, and Request-Timestamp.
    (2) Bank Indonesia SNAP: an asymmetric SHA256withRSA signature to obtain a
    15-minute Bearer access token, then a symmetric HMAC-SHA512 signature per
    transaction. No credentials are ever placed in the URL; all traffic is
    HTTPS/TLS to region hosts.
schemes:
- name: checkout_signature
  type: apiKey
  in: header
  headerName: Signature
  companionHeaders:
  - Client-Id
  - Request-Id
  - Request-Timestamp
  algorithm: HMAC-SHA256
  format: 'Signature: HMACSHA256=<base64(hmacSha256(clientSecret, componentString))>'
  componentString: >-
    Client-Id:<v>\nRequest-Id:<v>\nRequest-Timestamp:<v>\nRequest-Target:<path>\nDigest:<sha256-of-body>
  scope: DOKU Checkout API and legacy non-SNAP Direct API
  sources:
  - https://developers.doku.com/accept-payments/doku-checkout/integration-guide/backend-integration
- name: snap_asymmetric_token
  type: apiKey
  in: header
  headerName: X-SIGNATURE
  companionHeaders:
  - X-CLIENT-KEY
  - X-TIMESTAMP
  algorithm: SHA256withRSA (asymmetric)
  stringToSign: '<clientId>|<X-TIMESTAMP>'
  endpoint: POST /authorization/v1/access-token/b2b
  scope: SNAP access-token issuance (B2B and B2B2C)
  tokenTtlSeconds: 900
  sources:
  - https://developers.doku.com/accept-payments/direct-api/snap/integration-guide/get-token-api/b2b
- name: snap_bearer
  type: http
  scheme: bearer
  bearerFormat: JWT
  headerName: Authorization
  scope: All SNAP transaction endpoints (Virtual Account, Direct Debit / e-Wallet, QRIS, Kirim payout)
  sources:
  - https://developers.doku.com/accept-payments/direct-api/snap/integration-guide/get-token-api/b2b
- name: snap_symmetric_signature
  type: apiKey
  in: header
  headerName: X-SIGNATURE
  companionHeaders:
  - X-PARTNER-ID
  - X-EXTERNAL-ID
  - X-TIMESTAMP
  - CHANNEL-ID
  algorithm: HMAC-SHA512 (symmetric)
  stringToSign: >-
    <HTTPMethod>:<EndpointUrl>:<AccessToken>:Lowercase(HexEncode(SHA-256(minified-body))):<X-TIMESTAMP>
  scope: SNAP transaction signing per request
  sources:
  - https://developers.doku.com/accept-payments/direct-api/snap/integration-guide/virtual-account/bca-virtual-account