egutierrez
02226d61f6
Seis funciones de servidor HTTP con tests usando httptest: - HTTPJSONResponse: escribe JSON con Content-Type y status code - HTTPErrorResponse: escribe HTTPError como JSON estructurado - HTTPParseBody: decode JSON con limite de bytes y campos estrictos - HTTPLoggerMiddleware: loguea method/path/status/duration a io.Writer - HTTPRouter: crea ServeMux con rutas Go 1.22+ (METHOD /path) - HTTPServe: ListenAndServe con graceful shutdown por contexto 23 tests pasando, solo stdlib net/http. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
35 lines
915 B
Go
35 lines
915 B
Go
package infra
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import (
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"fmt"
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"io"
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"net/http"
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"time"
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)
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// responseWriter captura el status code escrito al ResponseWriter.
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type responseWriter struct {
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http.ResponseWriter
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status int
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}
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func (rw *responseWriter) WriteHeader(status int) {
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rw.status = status
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rw.ResponseWriter.WriteHeader(status)
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}
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// HTTPLoggerMiddleware retorna un Middleware que loguea metodo, path, status y duracion de cada request.
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// El formato de cada linea es: METHOD /path STATUS DURACIONms
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func HTTPLoggerMiddleware(logger io.Writer) Middleware {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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start := time.Now()
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rw := &responseWriter{ResponseWriter: w, status: http.StatusOK}
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next.ServeHTTP(rw, r)
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duration := time.Since(start)
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fmt.Fprintf(logger, "%s %s %d %dms\n",
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r.Method, r.URL.Path, rw.status, duration.Milliseconds())
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})
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}
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}
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