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package main
import (
"fmt"
"io"
"log"
"net/http"
)
const youtubeAPI = "https://www.googleapis.com/youtube/v3/"
/* function to make an api request */
func apiRequest(w http.ResponseWriter, r *http.Request, endpoint string, videoIdParam string, part string) {
videoID := r.URL.Query().Get("id")
if videoID == "" {
msg := "Missing ?id=VIDEO_ID parameter"
http.Error(w, msg, http.StatusBadRequest)
return
}
if apiKey == "" {
msg := "API_KEY environment variable not set"
http.Error(w, msg, http.StatusInternalServerError)
log.Println(msg)
return
}
url := fmt.Sprintf("%s?part=%s&%s=%s&key=%s", youtubeAPI + endpoint, part, videoIdParam, videoID, apiKey)
resp, err := http.Get(url)
if err != nil {
msg := "Failed to fetch video info: " + err.Error()
http.Error(w, msg, http.StatusInternalServerError)
log.Println(msg)
return
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
msg := "YouTube API error: " + resp.Status
http.Error(w, msg, http.StatusBadGateway)
log.Println(msg)
return
}
w.Header().Set("Content-Type", "application/json")
io.Copy(w, resp.Body)
}
/* routes */
func setupRoutesAPI() {
http.HandleFunc("/api/details", func(w http.ResponseWriter, r *http.Request) {
apiRequest(w, r, "videos", "id", "snippet,statistics,topicDetails")
})
http.HandleFunc("/api/comments", func(w http.ResponseWriter, r *http.Request) {
apiRequest(w, r, "commentThreads", "videoId", "snippet,replies&maxResults=100")
})
}
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