How to make openapi server implementation revisable? #118

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1. tanmaykm commented on Sep 19, 2026

   

   tanmaykm

   on Sep 19, 2026

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   Revise should work, but it needs you to use invokelatest on your side. Revise does update your handler. The problem is the running server uses the method version that the server task started with. HTTP.jl 1.x hid this by calling every handler through Base.invokelatest whereas HTTP.jl 2.x, which OpenAPI.jl 1.x uses, does not.

   The right way to do it now it to wrap the generated handlers with Base.invokelatest for register!. It is not the default anymore because Base.invokelatest cannot be compiled with Julia's --trim option, and we want generated servers to stay usable there.

   using Revise
   includet("Handlers.jl")
   include("ExampleServer.jl")
   
   router = HTTP.Router()
   ExampleServer.register!(router, Handlers;
       middleware = h -> (request -> Base.invokelatest(h, request)))
   server = HTTP.serve!(router, "127.0.0.1", 8080)
2. krynju

   closed this as completedin #133on Oct 2, 2026