My understanding is that API gateway pattern is like a proxy to all microservices. So client calls the API gateway which takes care of further routing. BFF is a specific case of API gateway pattern where we have a routing mechanism for each type of client. Am I right?
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3Chris Richardson explains the relation on his web site: http://microservices.io/patterns/apigateway.html – Paulo Merson Jul 23 '18 at 18:00
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Yes, it is a specific case of API Gateway. For me this comment was helpful for understanding. It says you may think about the following cases when we are talking about API Gateway - Client relationships:
- A single API gateway providing a single API for all clients.
- A single API gateway provides an API for each kind of client.
- A per-client API gateway providing each client with an API. This is the BFF pattern.
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