chromedp | simpler way to drive browsers | Code Inspection library
kandi X-RAY | chromedp Summary
kandi X-RAY | chromedp Summary
Package chromedp is a faster, simpler way to drive browsers supporting the Chrome DevTools Protocol in Go without external dependencies.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of chromedp
chromedp Key Features
chromedp Examples and Code Snippets
Community Discussions
Trending Discussions on chromedp
QUESTION
I have a Go program that is just simulating a local web page being visited using Surf (gopkg.in/headzoo/surf.v1
) but it seems that the Javascript on the page is not being executed. Just to test I have the web page doing an ajax call to another route on the server that will just output a response on the server side.
ANSWER
Answered 2022-Jan-05 at 21:38Surf does not include a JS runtime. It does support the downloading of scripts, but it will never actually execute them.
QUESTION
I'm trying to implement a Dockerfile to contain both my go binary and also chromedp. I manage to build the image and I can run the image and the go binary runs as expected, all but chromedp.
Thanks in advance!
Error message i recieve:
Error exec: "google-chrome": executable file not found in $PATH running chromedp
ANSWER
Answered 2021-Dec-02 at 02:13Error exec: "google-chrome": executable file not found in $PATH running chromedp
This is because you did not run your go program in chromedp/headless-shell
. You define multi-stage builds
, but with this, only the last stage will be act as the base image of final image.
This means your go program in fact runs in gcr.io/distroless/base-debian11
, not headless-shell
.
To learn how to run your own program in headless-shell
, you could refers to its official document:
When using chromedp/headless-shell as a base image to build an image that runs your own program, You could experience zombie process problem. To reap zombie processeses, use dumb-init or tini on your Dockerfile's ENTRYPOINT
QUESTION
I have implemented a gRPC service, build it into a container, and deployed it using k8s, in particular AWS EKS, as a DaemonSet.
The Pod starts and turns to be in Running status very soon, but it takes very long, typically 300s, for the actual service to be accessible.
In fact, when I run kubectl logs
to print the log of the Pod, it is empty for a long time.
I have logged something at the very starting of the service. In fact, my code looks like
...ANSWER
Answered 2021-Oct-15 at 03:20When you use HTTP_PROXY for your solution, watchout how it may route differently from your underlying cluster network - which often result to unexpected timeout.
QUESTION
I want to automate OTP submission on a bank page. I will get the OTP in my database only after webdriver have clicked confirm on the bank page. After confirming, I need to fetch OTP from the db and then automate OTP submission.
...ANSWER
Answered 2021-Jul-27 at 16:51The solution is to wrap the otp fetch within an Action.Do
call, then return the result of a call to chromdp.SendKeys
to set the HTML input value.
It is required to work that way because the One Time Password does not exist until the page was fetched, thus, its read must happen while manipulating the resource.
Like this
QUESTION
I'm trying to identify that an alert popped up after navigating to a URL using chromedp. I tried using a listener as follows but I'm new to Golang so I'm not sure why it didn't work.
...ANSWER
Answered 2021-Apr-17 at 10:30For your specific URL it helped to wait for the iframe to load to receive the event, otherwise chromedp seems to stop because it is finished with its task list.
QUESTION
This is my code:
...ANSWER
Answered 2021-Apr-15 at 19:56chromedp.Evaluate does not return error. It returns EvaluateAction. It has Do func which accepts context. So you can try this;
QUESTION
I am trying to call Go functions from Java through JNI call. Java compilation is ok. When I try to build the Go shared object (.so) it gives me errors about "multiple definitions" regarding the C function wrappers callable from Java.
This is the Java code:
...ANSWER
Answered 2021-Feb-16 at 23:53The following from the cgo documentation is the problem:
Using //export in a file places a restriction on the preamble: since it is copied into two different C output files, it must not contain any definitions, only declarations. If a file contains both definitions and declarations, then the two output files will produce duplicate symbols and the linker will fail. To avoid this, definitions must be placed in preambles in other files, or in C source files.
Moving the lines
QUESTION
We have tried to add page numbers to our printed html page. But we didn't succeed. Right now the code looks like this.
...ANSWER
Answered 2020-Oct-06 at 11:53Found a solution:
QUESTION
Hey guys I have been trying to automate a task on my browser's machine using chromedp.
I tried examples on the repo however they always fail:
unexpected fault address 0x7f7a36461000 fatal error: fault [signal SIGBUS: bus error code=0x2 addr=0x7f7a36461000 pc=0x53a9d5]
Example's source code am running can be found here.
As I understand chromedp comes with headless pre-compiled version of chrome. I have browsed the API documentation to see if it possible to pass a port on which the dev tools is listening, no success.
However when I tried mafredri/cdp it worked. I came to understand that chromedp is failing to start its embedded chrome. Although, I am not really sure. Why is this happening?
My env:
Google Chrome 85.0.4183.102
Ubuntu 18.04.4 LTS
go version go1.13.5 linux/amd64
Any help would be truly appreciated.
...ANSWER
Answered 2020-Sep-12 at 12:16So, long story short I went to run tests on the chromedp locally installed library through go test
, it failed. I opened an issue on the Github repo. While it was not indicated that it requires Go 1.14+ but it does.
If you encountered this issue, please proceed to first run the tests on the master branch locally installed library. If it is fails with the following log:
github.com/chromedp/chromedp [github.com/chromedp/chromedp.test] ./chromedp_test.go:862:3: t.Cleanup undefined (type *testing.T has no field or method Cleanup) ./chromedp_test.go:948:5: t.Cleanup undefined (type *testing.T has no field or method Cleanup) ./chromedp_test.go:950:5: t.Cleanup undefined (type *testing.T has no field or method Cleanup) FAIL github.com/chromedp/chromedp [build failed]
You need to know that t.Cleanup
was added on Go 1.14 (credits to Oiyoo).
I hope this helps you if you are having the same problem.
QUESTION
I want to assign strings to a variables, after some processes, in chromedp.ActionFunc
.
Refer to below example.
However, chromedp.SendKeys
after chromedp.ActionFunc
couldn't input the variable to a form.
I confirmed the above with chromedp.CaptureScreenshot
.
ANSWER
Answered 2020-Aug-19 at 11:21The first approach doesn't work cause at the moment
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