Friendly API to hijack requests about rod

[ysmood]

The final design I think will be like:

func main () {
	router := browser.HijackRequests("a.com", "b.com")
	defer router.Stop()

	router.Host("a.com").
	GET("/user/:id", func(ctx rod.ProxyContext) {
		if ctx.Param("id") != "abc" {
			ctx.Next()
			return
		}

		ctx.JSON(mock_user_data)
	}).
	DELETE("/user/:id", func(ctx rod.ProxyContext) {
		ctx.Write(200, "OK")
	})

	router.POST("/upload", func(ctx rod.ProxyContext) {
		fmt.Println(ctx.Form())
		ctx.Next()
	})

	go router.Run()
}

I will try to use https://github.com/gin-gonic/gin directly if it's not too much work.

[NormalPunch]

	browser.Hijack(`https://*/*`, func(ctx Context) (pass_to_browser bool) {
		// deal with specific page
		if Equal(ctx.Page, browser.Pages()[0]) {
			switch ctx.Request.Host {
			case "api.example.com":
				{
					switch ctx.Request.Path {
					case "/status":
						{
							// mock
							ctx.JSON(200, rod.H{
								"message": "ok",
							})
							return false
						}
					case "/check":
						{
							// modify a header and pass to browser to continue the request
							ctx.Request.Header.Set("Token", "my token")
							return true
						}
					}
				}
			case "npmjs.com":
				{
					// modify the host and pass to browser to continue the request
					ctx.Request.Host = "cdn.jsdelivr.net"
					return true
				}
			}
		}

		return true
	})

I don't know if this is possible with CDP but I think hijack api like this will be very useful and, powerful.

[ysmood]

Usually, we don't design like pass_to_browser, we use middleware like interface:

go browser.Hijack("/user/:id", func(ctx rod.ProxyContext) (stop bool) {
    ctx.Next()
    return false
})