Hi, I'm newbie in reactive world.
A question: ho do you experience integration between (micro)services implemented using reactive streams with (legacy?) services that don't? Or if you implement your own service using reactive but including third-party libs that don't ?
Integration between microservices should be no different. Reactive Streams are used internally to handle concurrency.
When you're using third-party libraries the main thing to take into consideration is if each method call is blocking or non-blocking and thread safety. When using Reactive Streams typically you can specify a different Scheduler based on if the call causes I/O (network traffic for example) or is CPU heavy (image processing in memory for example).
You need to keep track of whether or not a library is thread-safe. Usually they will say this upfront in the docs, but if not then it probably isn't. If it's not just make sure multiple threads don't modify the same resource at the same time.
Thank for the question,
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