Strict Middleware Cannot Access Response Status Code #2111
Description
Problem
When using oapi-codegen generated strict middleware (StrictMiddlewareFunc), the response status code is not available during middleware execution.
Expected Behavior
func Telemetry(f v1.StrictHandlerFunc, operationName string) v1.StrictHandlerFunc {
return func(ctx *gin.Context, request interface{}) (interface{}, error) {
result, err := f(ctx, request)
statusCode := ctx.Writer.Status() // Should return actual status (200, 404, etc.)
// ... telemetry collection
return result, err
}
}Actual Behavior
ctx.Writer.Status() always returns 0 because the response hasn't been written yet when strict middleware executes.
Root Cause
The oapi-codegen generated handlers write the response after all middleware has executed:
// Generated handler pattern
for _, middleware := range sh.middlewares {
handler = middleware(handler, "OperationName") // Middleware runs here
}
response, err := handler(ctx, request)
// Response writing happens AFTER middleware execution
if err != nil {
ctx.Status(http.StatusInternalServerError) // Status set here
}Request
Could oapi-codegen provide a way for strict middleware to access the final response status code?