Julia Genie API - handling multiple requests

[cjproud]

Hi,

I’m using Genie.jl as a web server which basically contains some API endpoints that do some calculations using the provided JSON request data. One of these calculations can take up to a minute or two and I’ve noticed when doing simultaneous requests, it will block the running of one of them.

Does Genie support multiprocessing/threading (I assume this is what I’d need to handle this)? I’m not sure whether this behaviour would be correct but I imagine what I want is each time a request is made a new calculation process is spawned, where each calculation process utilises it’s own CPU core?

Thanks for your help

[ndortega]

If pallelism is important for your app, I’d recommend checking out Oxygen.jl to build your web service. It supports multithreading out of the box

Here’s a similar discussion + example:

Implement a REST server in Julia?

Indeed, Oxygen.jl handels this case very well ! And the interface looks very lightweight and pleasant to use. (for reference here is my test code: a call to e.g. /long/1 does not block a call to /short/1 ) # julia is started with # julia -t4 using Oxygen, Dates, HTTP function long(a) t = Dates.now() + Dates.Minute(1) while (t > Dates.now()) a = a+1 end return a end @get "/long/{a}" function(req::HTTP.Request,a::Int) @info "long" return Dict("value" => long(a…