Communicate two separated APIs

Question

I want to communicate among two separated APIs(java API). I have a rest API that receives data from a mobile App and i want to send these data to another API. how can i do it? thank you in advance.

Answer 1

There are multiple approaches. Those are the ones that come to my mind:

• For simple forwarding or simple transformation, we can use a framework like Zuul .
• If we are on a microprofile-base project, we can use Microprofile Rest Client .
• If the downstream REST API provides an OpenAPI specification, we can use tools like Swagger Codegen to generate the client code ( tutorial on Baeldung ).
• We can use specialized frameworks, eg Spring RestTemplate (article on baeldung) or OpenFeign .
• For enterprise integration, we can use specialized solutions Spring Integration or Apache Camel