API Design Strategy Best Practices

The API design of NBFC ecosystem uses the RESTful principle to design the programming interfaces that each of the stakeholders, viz. the FIP, the AA, and the FIU need to host to facilitate the account aggregation functionality. The following HTTP methods are used in the design of AA ecosystem.

HTTP Method	Description	Request has body	Response has body	Idempotent	Cacheable
GET	Requests the representation of a resource. The primary information retrieval mechanism.	No	Yes	Yes	Yes
POST	Requests server processing of an attached payload according to its own semantics. Can be used to submit a form, post a message, or add items to a database.	Yes	Yes	No	Yes
DELETE	Requests server removal of a specified resource. It is up to the server to archive or actually delete information.	No	Yes	Yes	No