charles proxy android

How to configure Android device? Firstly, you have to make sure that IP address of your computer is accessible for the device. To ensure that. Debugging HTTP connections from mobile devices – providing a proxy between an iOS or Android device and a remote site, to debug HTTP connections and behavior. I am a software engineer at Runtastic, Austria. I'm interested in both iOS and Android development, currently focused on the Author. Tom.

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Proxyman acts as a man-in-the-middle server that logs the traffic between your applications and SSL Web Charles proxy android has built-in macOS setup, so you can inspect your HTTP/HTTPS Request and Responses in plain text with just one click.

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Narrow down your search with Proxyman's Multiple Filters Tool. You can combine complex filtered criteria such as URL, Request Header, Response Header, Body, Status Code, Method, Color, and Comment to filter your requests/responses more accurately.

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Charles Proxy is a HTTP/HTTPS traffic viewer by which you can view the traffic between your device and the internet. Since the MoPub SDK uses HTTP/HTTPS to request and receive ads, Charles can be used to see what is happening for debugging and testing apps ad request/response.

Install and Register Charles Proxy

  1. Download Charles Proxy here.
  2. On the Charles menu bar, go to Help > Register Charles…. You can also use a trial version with some limitations.

Setup Proxy

  1. Open Charles

    The first time you launch Charles, you will be asked to grant privileges to change your Network Settings. Click “Grant Privileges” and enter your password when prompted.

  2. Enable Proxy ( Proxy > Proxy Settings… > Proxies )

    Enable Proxy Screenshot

  3. Enable SSL Proxying ( SSL Proxy Settings… )

    Add a wildcard host to enable all SSL:

    Enable SSL Proxying Screenshot

    Or explicitly add MoPub host to the list:

  4. Add MoPub host to Focussed Hosts ( View > Focussed Hosts… > Add )

    Add Focussed Hosts Screenshot

Connect Your Devices


  1. Go to Settings > WiFi and connect to the network your computer is connected to

  2. Long press the network until the modal appears, then click Modify Network. Select Advanced Options to reveal proxying options. Configure the following:


  1. Go to Smart Driver Care Pro Crack + License Key Free 2021 > WiFi and connect to the network your computer is connected to
  2. Select “i” next to the network, and scroll down to HTTP Proxy and select Manual. Configure the following:

You should see a prompt when your device successfully connect to your computer, press Allow to complete the connection.

Install SSL Certification on Your Devices

  1. Go to Help > SSL Proxying > Install Charles Root Certificate on a Mobile Device…

  2. On your Android or iOS device, follow the instruction to browse to to download and install the certificate.

  3. Navigate to Settings > General > Profile & Device Management to install and verify the Charles SSL certificate.

  4. Navigate to Settings > General > About > Certificate Trust Settings to mark the Charles Root certificate as trusted.


On Android 7+ :

If Charles is not able to decrypt https traffic, please follow this insturction to add a and modify your in your app.


Note: please remember to revert this before your app goes live.

On iOS 10.3+ :

You have to go to Settings > General > About > Certificate Trust Settings to toggle the full trust of the certificate.

Test and View MoPub Ad Requests/Responses

  1. Launch MoPub Sample App or your own apps that has integrated MoPub SDK.

  2. Go to Charles Files > New Session to start a new recording if need be.

  3. Click on the besom icon to clear the logs, and make sure to enable the recording.

    ![Clear and Record][9]

  4. Trigger ad requests and reproduce any issues you’ve encountered.

  5. You should start seeing the ad requests and responses decrypted as below:

    Ad requests and Responses Screenshot

  6. Click Focused or type ‘mopub’ into the Filter to filter out the traffic that are sent through the MoPub server.


    Below will be exposed in the Charles log if ad requests to MoPub were captured:

    • MoPub ad request:
    • MoPub attempt tracker:
    • MoPub impression tracker:
      • (for Marketplace only)
    • MoPub click tracker:
      • (for Marketplace only)
    • MoPub app opened tracker:
  7. Disable the recording.

Save and Send Session Logs

  1. Ensure your session logs are decrypted.
  2. Recorded sessions can be saved as files, or exported as HTTP Archive (HAR) logs from File > Export Session…
  3. Send the files to your account manager.


Why can’t I see any traffic recorded in Charles?

  • Ensure your Charles Recording toggle is on.
  • Confirm if your mobile and your computer are connecting to the same WiFi.
  • Confirm if the proxy IP is identical with your computer’s IP.
  • Restart your Charles tool on your computer, and reconnect your devices to the WiFi.
  • Disable any Hide my ip crack download - Crack Key For U on your mobile.

Why is my https logs are encrypted?

  • Ensure your SSL Proxying is enabled and already allowlisting correct host name.
  • Redo the steps in the secton: “Install SSL Certification on Your Devices”.
  • Restart your Charles tool on your computer, and reconnect your devices to the WiFi.

s/ [8]: /assets/images/tools/Charles-050.png [9]: /assets/images/tools/Charles-060.png

Last updated September 14, 2021

TWITTER, MOPUB, and the Bird logo are trademarks of Twitter, Inc. or its affiliates. All third party logos and trademarks included are the property of their respective owners.

© 2021 MoPub (a division of Twitter, Inc.)


I mainly use breakpoints to modify API calls that are passed through Charles Proxy. This is used when I need to test certain back end functionality, error messages or when I’m just too lazy to build the full api call in Postman.

Breakpoints basically enable me to stop the API request or response before it goes through Charles and modify it to match my testing needs. The simplest example could be modifying an error message copy (coming in the back end response) to see if the app UI can handle long messages.

A more sophisticated test case could be the following. Imagine your app enables a user to withdraw their money from their savings account (product). Since a user can have multiple products, the app should pass Product ID and Withdrawal Amount in the API request. There is, however, a back end logic that says if the Product ID is not passed then take the Main Product ID (saved somewhere in DB) and withdraw from there.

Since the app is built to always pass the Product ID and Withdrawal Amount, I need to modify the call, erase the Product ID element from the request and then check that the withdrawal request has been saved with Main Product Id in the DB.

Enabling breakpoints in Charles Proxy

Finally, when we have the above test case in mind, let’s take a look on how to enable breakpoints in Charles Proxy!

  1. Right click on the desired endpoint
    The easiest way to enable breakpoint for a particular endpoint is to actually record your application when it makes a call to the desired endpoint and then simply right click that endpoint and tick “Breakpoints” from the menu.
  2. The other way how to enable Breakpoints is through the top menu in Charles. Go to Proxy -> Breakpoints Settings
    On the dialog, tick “Enable Breakpoints” and click on “Add” to add new breakpoint.
    Now you can add the full URL of the endpoint you’d like to intercept.
    If there were any nested endpoints helicon focus pro 7.6 3 crack /withdrawal you could also charles proxy android up the breakpoint to capture all of them by entering the path ” /withdrawal/* “. That would mean that if there exists e.g. a “/withdrawal/partial” endpoint for partial withdrawals and a “/withdrawal/full” for full withdrawals, they both would be captured by the breakpoint. The ‘*’ sign simply means “all”.You know that your endpoints are active when the red hexagon is enabled and also in the bottom right corner there’s a label reading “Breakpoints”.

How to modify API calls with breakpoints

Now when you have your breakpoints set up, you can run the test application and navigate to the area that triggers the endpoint captured by your breakpoints. In our test scenario it would be ““.

If you enabled breakpoints for both request and response, Charles will stop/break the request at the moment when the call to the endpoint is made by the application. Now it’s time to modify the request for your test purposes! Go to “Edit Request”:
and modify the JSON. In my test case I want to delete the ProductId bit of the JSON.
When we then execute the modified request we should get some response back. The response could look somewhat like the one below. You could modify the api response as well but you should know what kind of impact it will have on your application as it might misbehave or crash when it doesn’t get the correct information it’s expecting to receive.


Cookies Heading Help Text

Recently we faced an "interesting" problem: We received seemingly random reports for failing logins to our customer's website. Only after a lot of experimenting we could narrow the problem down to specific mobile devices. This forced us to go a level deeper and investigate the problem on the protocol level.

While I do know my share of TCP and HTTP, I am not hacking into mobile traffic on a day-to-day basis. So I had to put on my hacker-hat and start some research on how to intercept HTTP packets coming from my phone. As usual it took quite some time and experiments to follow Softany WordToHelp 3.24 Free Download with Crack on the internet, sort out the obsolete/expired information, and put together all the puzzle pieces to a complete working end-to-end picture. To hopefully save you time, this post sums up my findings and describes possible ways and necessary steps to view and analyse your mobile traffic (valid at the time of this writing in April 2020).

Possible Options To View Mobile Traffic

The biggest challenge for intercepting any traffic is end to end encryption charles proxy android hopefully everyone is using by now, except maybe TikTok ). In order to decrypt HTTPS traffic, one must be in possession of the correct key, which ultimately only the server knows (also hopefully).

There are three places where we can tap into the mobile traffic: on the client, where the traffic is encrypted, on the server, where the traffic is decrypted, and/or on the line in between:


1. Intercept traffic on the mobile client

In this case the traffic gets captured right where it is generated, but before it gets encrypted. This requires installing an app (e.g. HTTP Canary ) on the phone, which will then hook into the phone's network stack. There are a few downsides to this approach:

  1. Most apps require root access in order to capture traffic

  2. The traffic will be captured on the phone, thus you need to run your analysis directly on the phone or send the recorded data off your phone before being able to analyse it.

  3. It is rather invasive as the application messes with your network stack. Also, obviously you need to really, really trust the application's author.

2. Intercept traffic on the server

We could instead intercept the traffic on the server. However, for this we need to tap into the request processing pipeline charles proxy android the request content is decrypted. This also comes with some downsides:

  1. Unless we also put special filters in place, this will affect every request, not only the specific requests we want to inspect more closely. This may cause several concerns, namely performance and legal (GDPR).

  2. Making debugging modifications on a production system might not be to everyone's liking.

  3. It may open the server up for additional vulnerabilities or have unintended side-effects

3. Intercept traffic on the line

Last but not least we could listen in on the transport channel. However, traffic on the transport channel is encrypted so we can't just easily check network packets. Instead, we must perform what is known as a Man-In-The-Middle (MITM) attack by inserting our own HTTP proxy, presenting our own server certificate to the client and log the traffic before re-encrypting and relaying the request to the original server.


This is our weapon of choice: it captures real traffic on the line, affects only the specific device who's traffic we want to inspect, and does not require any modifications of the server software and/or -configuration.

In the following we take a look at the tools and configurations we can use in order to set up such a proxy-based MITM configuration (I will be using a Mac for this). For this example we need:

Install Tools

Charles Web Debugging Proxy

Installing Charles Proxy is straightforward. Just follow their installation instructions

Note: MacOS users can use Homebrew to install Charles Web Debugging Proxy

GenyMotion Desktop

GenyMotion is a great Android emulator, based on VirtualBox. Installation of GenyMotion charles proxy android also rather straightforward and will not be covered here. Please follow the installation steps as described in their documentation.

Note: MacOS users can use Homebrew to install VirtualBox and GenyMotion

Initial testing our Setup

Now that we have both tools installed, it's time to launch our emulated Android instance and test our proxy setup. For this example, I choose "Samsung Galaxy S9" template to create my instance in GenyMotion, leaving all settings at their default:


Once installed, we can start the instance and change the network configuration to use our proxy. The emulator routes all requests through the host network. Assuming we are running the GenyMotion and Charles on the same machine, the gateway IP address points to our machine. In "network details" check the IP address of "gateway". This is the proxy IP address we need to set, by default Charles is listening on port 8888:


Finally we can open the browser and open We should see this traffic in Charles:


Install CA Certificate on Mobile Devices

Before we can intercept HTTPS traffic, we need to "spoof" the server's certificate. Charles automatically generates a server certificate on-the-fly for each target server to intercept. For this to work though, we need to get our device to trust Charles Proxy's certificate authority. Otherwise it will rightfully reject the spoofed server certificate.

There are a bunch of instructions around how to debug Mobile traffic with Charles Proxy and install the necessary CA certificate on the devices. Charles proxy android the section about iOS is quite accurate and easy to follow, the Android documentation is rather thin. Starting with Android 7, user-installed CA certificates will not be trusted by default, which makes it impossible for Charles Proxy to proxy HTTPS traffic.

For Android >=7 you have only two choices if the application you want to test is not under your control:

a) decompile an existing APKchange the "Network Security Configuration" and recompile

b) on rooted devices, install the CA certificate into the trusted system CA location

The steps below show in detail how to do b) with GenyMotion Android Emulator as an example.


Make sure to perform this step before doing any webrequests on your device! This is because some sites use "certificate pinning" and once you hit the website for the first time, the OS caches the certificate key for this site, which will cause the browser to reject Charles Proxy's generated certificates!

1. Download Charles Proxy CA certificate


Select format "Binary Certificate (.cer)" filetype and save to filename "charlesproxy-ca_certificate":


2. Install certificate to GenyMotion instance

a) Drag & Drop charles proxy android certificate file onto the GenyMotion instance.


b) Open "Files" app and click on the certificate to install it


Click on the certificate file to install it. Enter a descriptive name and click OK:


This will install the certificate into the "User Certificates".

If you haven't yet, the system will require you to configure a security PIN first:


you will then find the certificate in

"Settings" -> "Security & Location" -> "Enccryption & Credentials" - "Trusted credentials" -> "User"


3. Copy user certificate to trusted system CA location

Using the "adb" tool, log into your device instance. For GenyMotion, you can use the following command:

Inside the shell, run the following commands:

This lists your installed user-certificates. The filename is the hash-value of the certificate ( see this blog for more details).

Now we need to copy this certificate over to the trusted system location:

E voilà! Now you can see the certificate in your trusted system certificate store:


With the Charles CA Certificate trusted by the system, we now can successfully call HTTPS endpoints and see the contents of those requests in Charles:


Finally we can capture the traffic between our mobile device and the server!

Running ARM Apps on x86 Emulator

Of course the built-in browser is not sufficient and we might want to trace traffic caused by a specific app. Here's the catch: a lot of apps are compiled for the ARM processor architecture, but our emulator is running on x86. The solution is to charles proxy android an "ARM Translator" which you can find here. There's no explicit translator for Android >=9 yet, but I used the one for 8, which works fine. Download the package for your Android version and drag&drop it onto your emulator window. A dialog will pop up asking you to install the package. Confirm & restart the emulator instance as instructed:


Now we can install & run ARM packages on our x86 emulator. One source for apk packages is apkmirror. As an example lets install WeChat, a popular IM client in China. I downloaded the suitable apk (armeabi-v7a in our case) and drag&drop it again onto our emulator. The package will be installed and started automatically and we've got our app under test successfully up & running:


Final Notes & Tips

Now we've got all the ingredients for a successful debugging session. Here are some tips that hopefully make your hacking life easier:

  • With some GenyMotion templates I had troubles entering text via keyboard. This seems to depend on the templates. With the Samsung Galaxy S9 template I had the least problems.
  • Ditto for performance. Some templates are dead slow, some are ok. Again, the Samsung Galaxy S9 template seems to work fine.
  • Touch Gestures in GenyMotion can be simulated via left-mouseclick (e.g. press long in a textbox to bring up copy&paste context menu)
  • By default, Charles automatically registers itself as system proxy. You may want to turn this off:
  • You will often find requests to a ton of different hosts in Charles. One way to filter this is to use the "Focused Hosts" feature:

Being able to see the actual traffic between a specific mobile app and a server without hooking into the server application and being able to test different mobile OS versions/devices turned out to be a huge lifesaver! The above hopefully gave you enough information in one single place to set up your own environment to get started. Happy debugging!


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Last modified on Tue 17 Mar 2020

Charles is an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and charles proxy android information).

It is very helpful when we debug api calls. Let's show one use case.

You are debugging a call which gives you the response model called User that looks like this:

There is a restriction request which says that users under age of 18 cannot use the app. You have implemented the logic for restricting young user from entering the app and you want to test it out. But there is only one test user available and it has value of age parameter set to 45.

This is the case where Charles becomes very handy. You can set a breakpoint to intercept this call. After Charles does the interception, you can manually change the value of model's charles proxy android Charles on Android

There are six steps to follow in order to setup Charles.

  1. Build the App in Debug flavor and install it on your device. In Charles go to Proxy > Proxy Settings > Mac OS X and disable it if activated.

  2. Connect the device to the same network as your laptop is on (not a network which blocks proxies).

  3. Modify the the WiFi connection on your device to use a proxy. It differs from device to device but it can go something like this: Long press on your wifi connection > Change/Adjust wifi > Show advanced settings > Proxy > Video editing software free download full version with key - Crack Key For U There you need to set yor proxy host IP address (which is your laptop IP address, on Charles - Help > Local IP address) and you need to set the port number (for example 8888)

  4. In Charles go to Proxy > SSL Proxying Settings > Add your host and port .

Set your host

  1. On the phone use Chrome to navigate to This page and install the certificate.

  2. Traffic should now be shown in Charles. Put a filter to your project to get rid of all the other traffic from your phone. If Charles shows "Unknown" label for all the calls from target api you can right click on it and select "Enable SSL proxying"

Adjust traffic

How to use breakpoints

Breakpoints are very useful feature in Charles. You can use them doing following steps:

Right click on a wanted call and then select "Breakpoints".

Select breakpoints

After that execute the call and wait for Charles to intercept it. It will also intercept request (You can adjust this in settings). Just click on execute and continue to response. When response is shown, select JSON Text and simply change wanted value. When finished, click execute. And it is simple as that!

Debug breakpoints


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