YouTube Transcript API for Go

package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"net/url"
	"os"
)

type Segment struct {
	Text     string  `json:"text"`
	Start    float64 `json:"start"`
	Duration float64 `json:"duration"`
}

type TranscriptResponse struct {
	Title      string    `json:"title"`
	Channel    string    `json:"channel"`
	Duration   int       `json:"duration"`
	Transcript []Segment `json:"transcript"`
}

func main() {
	apiKey := os.Getenv("YT_TRANSCRIPTS_API_KEY")
	videoURL := "https://www.youtube.com/watch?v=dQw4w9WgXcQ"

	reqURL := fmt.Sprintf(
		"https://api.youtubetranscripts.co/v1/transcript?url=%s",
		url.QueryEscape(videoURL),
	)

	req, _ := http.NewRequest("GET", reqURL, nil)
	req.Header.Set("x-api-key", apiKey)

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()

	var data TranscriptResponse
	json.NewDecoder(resp.Body).Decode(&data)

	fmt.Printf("Title: %s\nChannel: %s\n", data.Title, data.Channel)
	for _, s := range data.Transcript {
		fmt.Printf("[%.1fs] %s\n", s.Start, s.Text)
	}
}