Use JMeter Proxy against specific Proxy to record requests - proxy

I have an Electron App which should be started through Proxy Proxy_A. I Would like to make a Loadtest to the Backend. To my basic understanding when I want to record the request using JMeter, I should configure a script recorder which creates a proxy Proxy_B on its own. I should then use JMeter proxy as a proxy to my app so that the traffic could be recorded. Now I am little bit lost. How could I tell JMeter to accepts and forwards the request from my Proxy_A to JMeter Proxy Proxy_B?
Edit thanks to Dmitri T
What I am trying to do is described as per the attached screenshot
When I start JMeter with the proxy as per
jmeter -E https -H ACTUAL_PROXY_URL -P ACTUAL_PROXY_PORT
and I start the JMeter Proxy to record requests from localhost:9000
Then I can not record requests when I start recording. When I point my browser to localhost:9000 I become the error
500 Internal server error

In order to be able to record traffic from the Electron app to the backend you need to pass JMeter between the Electron app and the backend, for example:
Electron App -> JMeter -> Proxy_A -> Backend
or Electron App -> Proxy_A -> JMeter -> Backend
Exact instructions will differ depending on the approach and the software you use, i.e. if it's possible to configure the proxy server for the Electron app you can set it to use JMeter and configure JMeter to use Proxy_A as the upstream proxy
If it's possible to configure Proxy_A to use some upstream proxy just point it to JMeter's host/port combination.
Also you might need to perform the following steps:
Import JMeter's self-signed certificate to your proxy or OS so JMeter would be able to decrypt secure traffic
Set up proxy on OS level
If you will be running the Electron app and JMeter on the same physical Windows machine you might need to install loopback adapter
More information on the above steps: How to Run Performance Tests of Desktop Applications Using JMeter

Related

Jmeter: Mobile Internet not working after configuring with system's IP & port as per Recording Controller

I am trying to do performance testing of an android app. I have initiated the steps by adding a recording controller, put a port number, used the manual proxy on mobile as per the system's IP but when I try to use the browser, I cannot access the internet. It says no connectivity. I have installed Jmeterrootca certificate as well. Any suggestions folks?
Why would you need the browser if you need to capture the network footprint of the other application?
When you set JMeter's HTTP(S) Test Script Recorder as the proxy for the whole operating system you need to ensure that JMeter is capable of reaching the Internet (or at least the backend for the application which traffic you want to simulate). Check if you can open a web page using JMeter's HTTP Request sampler and if is not successful you will need to fix this first.
You will need to take some extra steps in order to be able to record secure traffic, check out Network security configuration and Configure Android Devices for Proxy Recording articles for more details if needed.

No Recording in jmeter

I am trying to record blazedemo.com with my Jmeter.
Steps that i have performed:
I Am using JMeter 5.1.1
Certificate Authority generated and imported into Chrome.
I am using jmeter in my office so it runs behind proxy and hence Checked that the port # in the HTTP(S) Test Script Recorder matches that in the proxy server set up in chrome.
Have added a Recording Controller to my Thread Group.
Have added Cache and Cookie Managers to my Thread Group.
When I try to start the HTTP Test Script Recorder it does not record anything in the recording controller.
I have ensured that the selected Target Controller in the HTTP(S) Test Script Recorder is a recording controller I've added to my Thread Group.
No Sampler/Requests are being added under the Recording Controller.
HTTP Request shows 200K.
You don't understand the concept and the network traffic flow.
Configure Chrome browser (however I would rather recommend to use Mozilla Firefox as it has separate proxy configuraiton) to use JMeter as the proxy, to wit:
proxy host: localhost or 127.0.0.1
proxy port: 8888
Configure JMeter to use your corporate proxy
This way the browser will use JMeter as the proxy so JMeter will be able to intercept and record requests and JMeter will use your corporate proxy in order to access the Internet.
An easier option could be using JMeter Chrome Extension, in this case you will not have to worry about proxies and SSL certificates.

jmeter and unknown host exception

Please guide me what all are the settings needs to be done in jmeter while recording an https request through jmeter. I am getting unknown host exception while doing the same.
Thanks
Assumption 1: you have misconfigured JMeter and/or browser. You can get JMeter configured for recording in a couple of clicks using Templates feature.
From JMeter's main menu select File -> Templates -> Recording -> Create
Configure your browser to use the following proxy:
Proxy host: hostname or IP address where JMeter is running
Proxy port: 8888
Use proxy for all protocols (if available) - check
Bypass proxy for local addresses (or equivalent) - uncheck
Assumption 2: you (or your company) are using corporate proxy to access Internet and/or intranet. In that case you need to pass proxy details to JMeter startup script like:
jmeter -H proxy_host -P proxy_port ...
See Using JMeter behind a proxy guide for more information on the domain.
You can also consider an alternative solution which allows recording JMeter test right from browser without having to configure proxies, worry about SSL certificates, etc. Check out JMeter Chrome Extension
For unknown host exception, you should add the domain name and ip address pair in hosts file. For windows, this file is present at C:\Windows\System32\driver\etc\.
For example:
102.54.94.97 rhino.acme.com
For recording HTTP requests through JMeter, you have to configure some elements in your system. Steps are :
1.Add thread to test plan.
2.Add recording controller to plan
3.Add Http Proxy Server to Work Bench
4.address 127.0.0.1 port is 8888
5.Start proxy server
6.go on the recording when finished stop proxy server.
You have to configure your browser setting or install Certificates to record through JMeter. For step by step JMeter Proxy setting follow this PDF Step by step JMeter HTTP(S) Test Script Recorder Configuration

How to record a script using jmeter for capturing the webservice requests that occurs between two applications?

How to record a script using jmeter for capturing the webservice requests that occurs between two applications ?
Check out https://www.digitalocean.com/community/tutorials/how-to-use-jmeter-to-record-test-scenarios. Specifically, the information on how to set up the proxy for Firefox. You have to make requests through a proxy at 127.0.0.1:8080 or localhost:8080.
Configure both applications or underlying application server, or underlying Java Virtual Machine or underlying operating system to use host, running JMeter as a proxy and it will record all the requests between applications.
You can use Load Testing Mobile Apps. But Made Easy guide as a reference.
For more information on JMeter Proxy Server configuration see:
HTTP(S) Test Script Recorder User Manual Entry
JMeter Proxy Step by Step PDF guide

Charles proxy session export to test

I'm intercepting traffic of my mobile app using charles proxy. I've saved the session as a .chls file. Is there any way to convert this chls into a file which can be readed by jmeter or some other test application?
It would be great if I can build a test case using intercepted data.
And is there some way to export a Postman file to jmeter or similar?
You can use JMeter to capture your mobile traffic. Just
Switch your mobile device to use WiFi connection rather than cellular data
Make sure that your workstation running JMeter and mobile device are under the same subnet
Configure you mobile device to user JMeter's proxy (IP address of your machine and
either port 8080 if you use standalone HTTP(S) Test Script Recorder
or port 8888 if you're using Recording template from File -> Templates menu
For more information and step-by-step configuration instructions see Load Testing Mobile Apps. But Made Easy. guide
If you really want to use Charles Proxy, you can export into HAR format instead. You can then reimport into Gatling with the recorder in HAR mode. Just beware that you might see some additional CONNECT requests over HTTPS, as Charles records traffic from its own standpoint: a proxy.
You can also export in HAR format from tools such as Google Chrome Dev Tool, without this CONNECT requests shortcoming.
Then, you can also use the Recorder in standard proxy mode.

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