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1
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package httpserver |
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2
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3
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import ( |
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4
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"bytes" |
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5
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"github.com/arazmj/gerdu/cache" |
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6
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"github.com/gorilla/mux" |
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7
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"github.com/prometheus/client_golang/prometheus/promhttp" |
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8
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"log" |
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9
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"net/http" |
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10
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"strconv" |
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11
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) |
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12
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13
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func httpServe(httpPort int, gerdu cache.UnImplementedCache, verbose bool) (host string, router *mux.Router) { |
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host = ":" + strconv.Itoa(httpPort) |
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15
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router = mux.NewRouter() |
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16
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router.HandleFunc("/cache/{key}", func(w http.ResponseWriter, r *http.Request) { |
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getHandler(w, r, gerdu, verbose) |
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18
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}).Methods(http.MethodGet) |
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19
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router.HandleFunc("/cache/{key}", func(w http.ResponseWriter, r *http.Request) { |
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putHandler(w, r, gerdu, verbose) |
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}).Methods(http.MethodPut) |
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router.Handle("/metrics", promhttp.Handler()) |
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return host, router |
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} |
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func HttpServe(httpPort int, gerdu cache.UnImplementedCache, verbose bool) { |
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host, router := httpServe(httpPort, gerdu, verbose) |
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log.Printf("Gerdu started listening HTTP on %d port\n", httpPort) |
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log.Fatal(http.ListenAndServe(host, router)) |
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} |
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32
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func HttpServeTLS(httpPort int, tlsCert, tlsKey string, gerdu cache.UnImplementedCache, verbose bool) { |
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host, router := httpServe(httpPort, gerdu, verbose) |
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log.Printf("Gerdu started listening HTTPS TLS on %d port\n", httpPort) |
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log.Fatal(http.ListenAndServeTLS(host, tlsCert, tlsKey, router)) |
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} |
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func putHandler(w http.ResponseWriter, r *http.Request, gerdu cache.UnImplementedCache, verbose bool) { |
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vars := mux.Vars(r) |
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key := vars["key"] |
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buf := new(bytes.Buffer) |
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_, err := buf.ReadFrom(r.Body) |
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if err != nil { |
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log.Fatal(err.Error()) |
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return |
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} |
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value := buf.String() |
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48
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49
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created := gerdu.Put(key, value) |
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if verbose { |
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51
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if !created { |
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log.Printf("HTTP UPDATE Key: %s Value: %s\n", key, value) |
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53
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} else { |
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log.Printf("HTTP INSERT Key: %s Value: %s\n", key, value) |
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} |
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} |
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if created { |
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w.WriteHeader(http.StatusCreated) |
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} else { |
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w.WriteHeader(http.StatusNoContent) |
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} |
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} |
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64
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func getHandler(w http.ResponseWriter, r *http.Request, gerdu cache.UnImplementedCache, verbose bool) { |
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vars := mux.Vars(r) |
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key := vars["key"] |
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if value, ok := gerdu.Get(key); ok { |
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if verbose { |
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log.Printf("HTTP RETREIVED Key: %s Value: %s\n", key, value) |
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} |
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w.WriteHeader(http.StatusOK) |
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_, _ = w.Write([]byte(value)) |
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} else { |
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if verbose { |
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log.Printf("HTTP MISSED Key: %s \n", key) |
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} |
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w.WriteHeader(http.StatusNotFound) |
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} |
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79
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} |
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80
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arazmj /
gerdu
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