Certificate Signing request or CSR is a message sent from an applicant to a certificate authority in order to apply for a digital identity certificate. It usually contains the public key for which the certificate should be issued, identifying information (such as a domain name) and integrity protection (more detail). Partner will receive the certificate file from SCB after completing the onboarding process as agreed.
The sandbox version of the listed APIs do not require a CSR (Certificate Signing Request) whereas production APIs do. Following code snippet shows an example of calling an API using CSR.
curl -E <path-to-certificate> -X POST \
https://api-sandbox.partners.scb/<endpoint>/\
-H 'Content-Type: application/json' \
-d '{
<Key>: <Value>
}