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api.go
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api.go
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package main
import (
"encoding/json"
"fmt"
"net/http"
"time"
"github.com/go-chi/chi/v5"
"github.com/go-chi/chi/v5/middleware"
"go.uber.org/zap"
)
type apiHandler struct {
storage *inMemoryStorage
mux *chi.Mux
logger *zap.Logger
}
func newHandler(storage *inMemoryStorage, logger *zap.Logger) *apiHandler {
return &apiHandler{
mux: chi.NewMux(),
storage: storage,
logger: logger,
}
}
func (h *apiHandler) register() {
r := chi.NewRouter()
r.Use(middleware.RequestID)
r.Use(middleware.RealIP)
r.Use(middleware.Recoverer)
r.Use(newLoggerMiddleware(h.logger, &loggerOpts{
WithReferer: true,
WithUserAgent: true,
}))
r.Get("/", h.index)
r.Get("/ping", h.ping)
r.Post("/submit", h.submit)
h.mux.Mount("/", r)
}
func (h *apiHandler) index(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Hi, %s", r.RemoteAddr)
}
func (h *apiHandler) ping(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Server time: %s", time.Now())
}
func (h *apiHandler) submit(w http.ResponseWriter, r *http.Request) {
clientAddr := r.RemoteAddr
timeNow := time.Now()
eventEntries := make([]eventEntry, 0)
d := json.NewDecoder(r.Body)
for d.More() {
var out eventEntry
err := d.Decode(&out)
if err != nil {
h.logger.Error("Can't decode part of the data", zap.Error(err))
continue
}
err = out.checkRequiredFields()
if err != nil {
h.logger.Info("Required check failed", zap.Error(err))
continue
}
out.enrichData(clientAddr, timeNow)
eventEntries = append(eventEntries, out)
}
err := h.storage.addEntries(eventEntries)
if err != nil {
h.logger.Warn("Failed to save in memory storage", zap.Int("entries_count", len(eventEntries)), zap.Error(err))
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusCreated)
}