About Obtaining All Request Headers in an HTTP Request

[ctinkong]

About Obtaining All Request Headers in an HTTP Request

[canstand]

If you just need cookies, page.Context().Cookies() should work. If you need request headers, request.AllHeaders() should work.

Note, do not block request:

	chanReq := make(chan playwright.Request, 1)
	page.OnRequest(func(r playwright.Request) {
		// do not block request
		go func() {
			chanReq <- r
		}()
	})

	// handle request in another goroutine
	go func() {
		req := <-chanReq
		headers, err := req.AllHeaders()
		if err != nil {
			log.Print(err)
		} else {
			log.Print(headers)
		}
	}()

[ctinkong]

OK,I get it.The way I used is problematic.

request.AllHeaders() will block

page.OnRequest(func(r playwright.Request) {
// r.AllHeaders() is blocking
headers, _ := r.AllHeaders()
})

Am I right? Thank you.

如果您只需要 cookie，应该可以工作。如果您需要请求标头，应该可以工作。page.Context().Cookies()``request.AllHeaders()

请注意，不要阻止请求：

	chanReq := make(chan playwright.Request, 1)
	page.OnRequest(func(r playwright.Request) {
		// do not block request
		go func() {
			chanReq <- r
		}()
	})

	// handle request in another goroutine
	go func() {
		req := <-chanReq
		headers, err := req.AllHeaders()
		if err != nil {
			log.Print(err)
		} else {
			log.Print(headers)
		}
	}()

If you just need cookies, page.Context().Cookies() should work. If you need request headers, request.AllHeaders() should work.

Note, do not block request:

	chanReq := make(chan playwright.Request, 1)
	page.OnRequest(func(r playwright.Request) {
		// do not block request
		go func() {
			chanReq <- r
		}()
	})

	// handle request in another goroutine
	go func() {
		req := <-chanReq
		headers, err := req.AllHeaders()
		if err != nil {
			log.Print(err)
		} else {
			log.Print(headers)
		}
	}()

OK,I get it.The way I used is problematic.

request.AllHeaders() will block

page.OnRequest(func(r playwright.Request) {
// r.AllHeaders() is blocking
headers, _ := r.AllHeaders()
})

Am I right? Thank you.

[canstand]

right, currently all OnSomeEvent may have the same issue (playwrigh-go only). Hope it can be solved later.

[ctinkong]

right, currently all OnSomeEvent may have the same issue (playwrigh-go only). Hope it can be solved later.

I tried, but unfortunately, req.AllHeaders() blocked.

	chanReq := make(chan playwright.Request, 1)
	page.OnRequest(func(r playwright.Request) {
		// do not block request
		go func() {
			chanReq <- r
		}()
	})

	// handle request in another goroutine
	go func() {
		req := <-chanReq
		headers, err := req.AllHeaders() // Here is blocked.
		if err != nil {
			log.Print(err)
		} else {
			log.Print(headers)
		}
	}()

[reginaldl]

I haven't had the time to dig more but when calling AllHeaders in a goroutine there be might a race in ActualHeaders. At least I get a lot of complaints when running with -race.

[ctinkong]

use page.Context().Cookies(url) to fix it. thanks.