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feat: Added chapter 3 and 4

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This commit is contained in:
syrell 2024-10-16 21:34:04 +02:00
parent c93e88b2fe
commit 141e1df0cb
3 changed files with 86 additions and 7 deletions
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71
chirp.go Normal file
View File

@ -0,0 +1,71 @@
package main
import (
"encoding/json"
"log"
"net/http"
"strings"
)
func decode(w http.ResponseWriter, r *http.Request) {
type parameters struct {
Content string `json:"body"`
}
type returnVals struct {
Data string `json:"cleaned_body"`
}
decoder := json.NewDecoder(r.Body)
params := parameters{}
err := decoder.Decode(&params)
if err != nil {
log.Printf("Error decoding parameters: %s", err)
w.WriteHeader(500)
return
} else if len(params.Content) > 140 {
type errorVals struct {
Data string `json:"error"`
}
respBody := errorVals{
Data: "Chirp is too long",
}
dat, err := json.Marshal(respBody)
if err != nil {
log.Printf("Error marshalling JSON: %s", err)
w.WriteHeader(500)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(400)
w.Write(dat)
} else {
cleanedData := cleanText(params.Content)
respBody := returnVals{
Data: cleanedData,
}
dat, err := json.Marshal(respBody)
if err != nil {
log.Printf("Error marshalling JSON: %s", err)
w.WriteHeader(500)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(200)
w.Write(dat)
}
}
func cleanText(s string) string {
splittedString := strings.Split(s, " ")
for idx, element := range splittedString {
switch strings.ToLower(element) {
case
"kerfuffle",
"sharbert",
"fornax":
splittedString[idx] = "****"
}
}
return strings.Join(splittedString, " ")
}

12
main.go
View File

@ -12,16 +12,16 @@ type apiConfig struct {
func main() { func main() {
apiCfg := &apiConfig{} apiCfg := &apiConfig{}
mux := http.NewServeMux() mux := http.NewServeMux()
fileServer := http.FileServer(http.Dir(".")) fsHandler := apiCfg.middlewareMetricsInc(http.StripPrefix("/app", http.FileServer(http.Dir("."))))
mux.Handle("/app", apiCfg.middlewareMetricsInc(http.StripPrefix("/app", fileServer))) mux.Handle("/app/", fsHandler)
mux.Handle("/app/assets/", http.StripPrefix("/app/assets/", http.FileServer(http.Dir("./assets/")))) mux.HandleFunc("GET /api/healthz", func(w http.ResponseWriter, req *http.Request) {
mux.HandleFunc("GET /healthz", func(w http.ResponseWriter, req *http.Request) {
req.Header.Set("Content-Type", "text/plain; charset=utf-8") req.Header.Set("Content-Type", "text/plain; charset=utf-8")
w.WriteHeader(http.StatusOK) w.WriteHeader(http.StatusOK)
w.Write([]byte("OK")) w.Write([]byte("OK"))
}) })
mux.Handle("GET /metrics", http.HandlerFunc(apiCfg.serveMetrics)) mux.Handle("GET /admin/metrics", http.HandlerFunc(apiCfg.serveMetrics))
mux.Handle("POST /reset", http.HandlerFunc(apiCfg.serveReset)) mux.Handle("POST /admin/reset", http.HandlerFunc(apiCfg.serveReset))
mux.HandleFunc("POST /api/validate_chirp", decode)
server := &http.Server{ server := &http.Server{
Addr: ":8080", Addr: ":8080",

10
metrics.go
View File

@ -13,6 +13,14 @@ func (cfg *apiConfig) middlewareMetricsInc(next http.Handler) http.Handler {
} }
func (cfg *apiConfig) serveMetrics(w http.ResponseWriter, r *http.Request) { func (cfg *apiConfig) serveMetrics(w http.ResponseWriter, r *http.Request) {
w.Header().Add("Content-Type", "text/html")
hits := cfg.fileserverHits.Load() hits := cfg.fileserverHits.Load()
fmt.Fprintf(w, "Hits: %d", hits) template := `
<html>
<body>
<h1>Welcome, Chirpy Admin</h1>
<p>Chirpy has been visited %d times!</p>
</body>
</html>`
fmt.Fprintf(w, template, hits)
} }