integration - When do we need to integrate WSO2 API Manager with WSO2 G-registry? -

i have done through wso2 documentation , webinar on integrating wso2 api manager wso2 g-registry. still i'm not clear during business scenario or solve business problem need integrate these 2 products?

i kindly request please give me valuable ideas.

basically need go solution integration of apim , greg cater below requirements.

1. assume there different types of assets in organization such wsdls, services, endpoints, apis, etc want govern central point. have requirement allow explored in central store. can achieved greg + apim integration can use central publisher govern assets , use store explore artifacts. same time apim capabilities there expose managed apis.
2. assume have multiple apim environments such dev, qa, prod, etc. want manage api in environments single publisher. can achieved solution can define multiple endpoints same api asset , push them relevant environment using lefecycle executors.