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How to use WaitForRequestAsync method of PuppeteerSharp.Page class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Page.WaitForRequestAsync

PuppeteerCookieRetriever.cs

Source:PuppeteerCookieRetriever.cs

...70                        page = await browser.NewPageAsync();71                    }72                    await page.GoToAsync("https://www.patreon.com/login");73                    //todo: use another page? home page loading is pretty slow74                    await page.WaitForRequestAsync(request => request.Url == "https://www.patreon.com/home");75                }76                else77                {78                    _logger.Debug("We are logged in");79                    if (_puppeteerEngine.IsHeadless != _isHeadlessBrowser)80                    {81                        browser = await RestartBrowser(_isHeadlessBrowser);82                        page = await browser.NewPageAsync();83                    }84                    loggedIn = true;85                }86            } while (!loggedIn);87            await page.CloseAsync();88        }...

TokenController.cs

Source:TokenController.cs

...86                // Avoiding OPTIONS request from React87                for (var i = 0; i < MaxAttemptNumber; i++)88                {89                    _logger.LogInformation($"Waiting request, attempt {i + 1}");90                    var request = await page.WaitForRequestAsync($"{options.ApiEndpoint}");91                    if (request.Method == HttpMethod.Options)92                        continue;9394                    return ParseToken(request);95                }96            }97            catch (TimeoutException ex)98            {99                throw new Exception($"Can't login the user with following credentials. Reason: {ex.Message}");100            }101            finally102            {103                await factory.Dispose(page);104            }
...

PuppeteerCaptchaSolver.cs

Source:PuppeteerCaptchaSolver.cs

...94                        browser = await RestartBrowser(false);95                        page = await browser.NewPageAsync();96                    }97                    await page.GoToAsync(url);98                    await page.WaitForRequestAsync(request => request.Url == url);99                }100                else101                {102                    _logger.Debug("Captcha was not returned, done");103                    passedCaptcha = true;104                }105            } while (!passedCaptcha);106            await page.CloseAsync();107        }108        public void Dispose()109        {110            _puppeteerEngine?.Dispose();111        }112    }...

WaitForRequestTests.cs

Source:WaitForRequestTests.cs

...14        [Fact]15        public async Task ShouldWork()16        {17            await Page.GoToAsync(TestConstants.EmptyPage);18            var task = Page.WaitForRequestAsync(TestConstants.ServerUrl + "/digits/2.png");19            await Task.WhenAll(20                task,21                Page.EvaluateFunctionAsync(@"() => {22                    fetch('/digits/1.png');23                    fetch('/digits/2.png');24                    fetch('/digits/3.png');25                }")26            );27            Assert.Equal(TestConstants.ServerUrl + "/digits/2.png", task.Result.Url);28        }29        [Fact]30        public async Task ShouldWorkWithPredicate()31        {32            await Page.GoToAsync(TestConstants.EmptyPage);33            var task = Page.WaitForRequestAsync(request => request.Url == TestConstants.ServerUrl + "/digits/2.png");34            await Task.WhenAll(35            task,36            Page.EvaluateFunctionAsync(@"() => {37                fetch('/digits/1.png');38                fetch('/digits/2.png');39                fetch('/digits/3.png');40            }")41            );42            Assert.Equal(TestConstants.ServerUrl + "/digits/2.png", task.Result.Url);43        }44        [Fact]45        public async Task ShouldRespectTimeout()46        {47            await Page.GoToAsync(TestConstants.EmptyPage);48            var exception = await Assert.ThrowsAnyAsync<TimeoutException>(async () =>49                await Page.WaitForRequestAsync(request => false, new WaitForOptions50                {51                    Timeout = 152                }));53            Assert.Contains("Timeout Exceeded: 1ms", exception.Message);54        }55        [Fact]56        public async Task ShouldRespectDefaultTimeout()57        {58            await Page.GoToAsync(TestConstants.EmptyPage);59            Page.DefaultTimeout = 1;60            var exception = await Assert.ThrowsAnyAsync<TimeoutException>(async () =>61                await Page.WaitForRequestAsync(request => false));6263            Assert.Contains("Timeout Exceeded: 1ms", exception.Message);64        }65        [Fact]66        public async Task ShouldProperyStopListeningNewRequests()67        {68            var tcs = new TaskCompletionSource<bool>();69            await Page.GoToAsync(TestConstants.EmptyPage);70            Page.DefaultTimeout = 1;71            var exception = await Assert.ThrowsAnyAsync<TimeoutException>(async () =>72                await Page.WaitForRequestAsync(request =>73                {74                    if (request.Url.Contains("/digits/1.png"))75                    {76                        tcs.TrySetResult(true);77                    }78                    return true;79                }));80            await Page.EvaluateFunctionAsync(@"() => fetch('/digits/1.png')");81            await Assert.ThrowsAnyAsync<TimeoutException>(() => tcs.Task.WithTimeout(1));82        }83        [Fact]84        public async Task ShouldWorkWithNoTimeout()85        {86            await Page.GoToAsync(TestConstants.EmptyPage);87            var task = Page.WaitForRequestAsync(TestConstants.ServerUrl + "/digits/2.png", new WaitForOptions88            {89                Timeout = 090            });91            await Task.WhenAll(92                task,93                Page.EvaluateFunctionAsync(@"() => setTimeout(() => {94                    fetch('/digits/1.png');95                    fetch('/digits/2.png');96                    fetch('/digits/3.png');97                }, 50)")98            );99            Assert.Equal(TestConstants.ServerUrl + "/digits/2.png", task.Result.Url);100        }101    }...

WebPage.cs

Source:WebPage.cs

...37        public async Task<string> GetContentAsync()38        {39            return await _page.GetContentAsync();40        }41        public async Task<IWebRequest> WaitForRequestAsync(Func<Request, bool> predicate, WaitForOptions options = null)42        {43            await ConfigurePage();44            Request request = await _page.WaitForRequestAsync(predicate, options);45            IWebRequest webRequest = new WebRequest(request);46            return webRequest;47        }48        public async Task<CookieParam[]> GetCookiesAsync(params string[] urls)49        {50            return await _page.GetCookiesAsync(urls);51        }52        public async Task CloseAsync(PageCloseOptions options = null)53        {54            await _page.CloseAsync(options);55        }56        /// <summary>57        /// Perform required configuration for a page. (avoid cloudflare triggering, do not load images, etc)58        /// </summary>...

BrowserCloseTests.cs

Source:BrowserCloseTests.cs

...15            using (var browser = await Puppeteer.LaunchAsync(TestConstants.DefaultBrowserOptions()))16            using (var remote = await Puppeteer.ConnectAsync(new ConnectOptions { BrowserWSEndpoint = browser.WebSocketEndpoint }))17            {18                var newPage = await remote.NewPageAsync();19                var requestTask = newPage.WaitForRequestAsync(TestConstants.EmptyPage);20                var responseTask = newPage.WaitForResponseAsync(TestConstants.EmptyPage);21                await browser.CloseAsync();22                var exception = await Assert.ThrowsAsync<TargetClosedException>(() => requestTask);23                Assert.Contains("Target closed", exception.Message);24                Assert.DoesNotContain("Timeout", exception.Message);25                exception = await Assert.ThrowsAsync<TargetClosedException>(() => responseTask);26                Assert.Contains("Target closed", exception.Message);27                Assert.DoesNotContain("Timeout", exception.Message);28            }29        }30    }31}...

IWebPage.cs

Source:IWebPage.cs

...12        bool IsClosed { get; }13        Task<IWebResponse> GoToAsync(string url, int? timeout = null, WaitUntilNavigation[] waitUntil = null);14        Task SetUserAgentAsync(string userAgent);15        Task<string> GetContentAsync();16        Task<IWebRequest> WaitForRequestAsync(Func<Request, bool> predicate, WaitForOptions options = null);17        Task<CookieParam[]> GetCookiesAsync(params string[] urls);18        Task CloseAsync(PageCloseOptions options = null);19    }20}...

WaitForOptions.cs

Source:WaitForOptions.cs

...3{4    /// <summary>5    /// Optional waiting parameters.6    /// </summary>7    /// <seealso cref="Page.WaitForRequestAsync(Func{Request, bool}, WaitForOptions)"/>8    /// <seealso cref="Page.WaitForRequestAsync(string, WaitForOptions)"/>9    /// <seealso cref="Page.WaitForResponseAsync(string, WaitForOptions)"/>10    /// <seealso cref="Page.WaitForResponseAsync(Func{Response, bool}, WaitForOptions)"/>11    public class WaitForOptions12    {13        /// <summary>14        /// Maximum time to wait for in milliseconds. Defaults to 30000 (30 seconds). Pass 0 to disable timeout.15        /// </summary>16        public int Timeout { get; set; } = 30_000;17    }18}...

WaitForRequestAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2var page = await browser.NewPageAsync();3var page = await browser.NewPageAsync();4var page = await browser.NewPageAsync();5var page = await browser.NewPageAsync();6var page = await browser.NewPageAsync();7var page = await browser.NewPageAsync();8var page = await browser.NewPageAsync();

WaitForRequestAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2Console.WriteLine(request.Url);3var page = await browser.NewPageAsync();4Console.WriteLine(response.Url);5var page = await browser.NewPageAsync();6Console.WriteLine(request.Url);7var page = await browser.NewPageAsync();8Console.WriteLine(response.Url);9var page = await browser.NewPageAsync();10Console.WriteLine(request.Url);11var page = await browser.NewPageAsync();12Console.WriteLine(response.Url);13var page = await browser.NewPageAsync();14await page.GoToAsync("

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