Signature Componen from Response Header
To validate a signature in response header, merchant need to see and check these components.
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To validate a signature in response header, merchant need to see and check these components.
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Client-Id
Retrieved from the Request Header
Request-Id
Retrieved from the Request Header
Response-Timestamp
Retrieved from the Response Header
Request-Target
The path of the endpoint that will be hitted e.g: /doku-virtual-account/v2/payment-code.
Digest
Encoded (base64) value of hashed (SHA-256) JSON body. This component only applied for POST Method.
Before validating Signature, merchant need to check all the component required.
Set Client-Id, Request-Id, Response-Timestamp.
Use the Client-Id, Request-Id, Response-Timestamp that is placed on the Response Header.
Set Request-Target
The Request-Target is depending on who is sending the request:
When merchant hits DOKU endpoints: The Request-Target is the path of the DOKU API that merchant hits.
After merchant send request to DOKU and generate signature in request header, DOKU will send response and generate signature in response header. Then merchant can verify this response is coming from DOKU by Signature.
Arrange the signature components to one component and its value per line by adding escape character. Don't add at the end of the string. Sample of the raw format :
This is how merchant will see :
Put encoded value and prepend HMACSHA256= to the Signature. Sample :
Calculate HMAC-SHA256 base64 from all the components above using the