I'm not sure which part of backend you're asking about specifically (since even the Tour goes into some detail on common backend processes, concurrency, and relatively common modules), but the Tour also references web application tutorials at the end, as a jumping-off point, which in turn can be tested on the Playground to an extent.
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Is there any website like Tour of Go but for backend ?, If that exist that might be very helpful, Thanks for the tip btw :)
I'm not sure which part of backend you're asking about specifically (since even the Tour goes into some detail on common backend processes, concurrency, and relatively common modules), but the Tour also references web application tutorials at the end, as a jumping-off point, which in turn can be tested on the Playground to an extent.