如何为连接到它的每个前端应用程序提供相同的后端但使用不同的数据库

Question

I'm looking to deploy my backend on a server and to have multiple frontend apps connected to it, but for every one to have different database, is there any way to handle this? I am using Node, express, mongoose, mongodb. The logic of the backend should be the same, but I need different db for every frontend app connected to backend.

Thanks and I hope this is appropriate to ask in this forum, otherwise please do let me know where I can find more information about this.

Answer 1

You can find the domain that the client tried to access in the request's Host header. If every app connects to a different domain, you can use that to differentiate them. Otherwise, you could just send a query parameter containing the app name or identifier, and differentiate them through that.

Then, when you start the application, you could have something like an object with the application name or identifier as the key and a database connection as the value, and choose the database connection to interact with based on the application that made the request.