Client development (API)
Official BW client
Currently there is no official BizWebs client library available. However GraphQL is open standard with multiple open-source implementations of GQL in various languages available.
Testing queries
Postman is a handy tool to test and debug your queries with ability to save multiple – no user account required: https://www.postman.com/downloads/
Sandbox feature is in development.
Worth looking at
PHP example: