Screenshot API for Go

Capture website screenshots in Go without headless Chrome or any browser dependency. One HTTP call. Get back an image.

package main

import (
    "fmt"
    "io"
    "net/http"
    "net/url"
    "os"
)

func main() {
    params := url.Values{
        "url":    {"https://stripe.com"},
        "format": {"png"},
        "width":  {"1280"},
        "frame":  {"macbook"},
        "key":    {"YOUR_API_KEY"},
    }

    resp, err := http.Get("https://grabshot.dev/v1/screenshot?" + params.Encode())
    if err != nil { panic(err) }
    defer resp.Body.Close()

    f, _ := os.Create("screenshot.png")
    defer f.Close()
    io.Copy(f, resp.Body)
    fmt.Println("Saved screenshot.png")
}

func screenshotHandler(w http.ResponseWriter, r *http.Request) {
    target := r.URL.Query().Get("url")
    params := url.Values{
        "url": {target}, "format": {"png"},
        "width": {"1280"}, "key": {os.Getenv("GRABSHOT_KEY")},
    }

    resp, err := http.Get("https://grabshot.dev/v1/screenshot?" + params.Encode())
    if err != nil { http.Error(w, "capture failed", 500); return }
    defer resp.Body.Close()

    w.Header().Set("Content-Type", "image/png")
    w.Header().Set("Cache-Control", "public, max-age=3600")
    io.Copy(w, resp.Body)
}