Uploaded an app to play store but network calls are not working

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I have uploaded an app to play store. On launching the app login page is shown but the web-service that does the login is not working. I have tested the app locally and everything works fine.
What could be have possibly gone wrong.

My web service uses http protocol so i added network_config_xml_file like this

<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">webservices.mydomain.com/vidyaMandir.svc</domain>
    </domain-config>
</network-security-config>

and added this property in manifest file as

android:networkSecurityConfig="@xml/network_security_config"

What I have tried:

Launched app to play store but web-service is returning null

Posted 2-Apr-20 3:36am

Rahul Ramakrishnan

Updated 27-May-20 18:42pm

v2

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Richard MacCutchan 2-Apr-20 10:21am

Any one of a million things could have gone wrong. But no one here could guess without some proper details.

3 solutions

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MadMyche · Answer 1 · 2020-04-02T04:23:00

Solution 1

Most likely you have a configuration problem.

If you expect more help... you actually are going to tell us more.

If this was my problem; I would start off by trying to call that webservice from a browser or by using a tool such as SoapUI or Postman.

If the web-service is not working, then fixing that should take care of your app as well.
If the web-service is working, then you need to make sure that your app has the correct pointer to the webservice, and not to something on your home network

Posted 2-Apr-20 4:23am

MadMyche

Comments

Rahul Ramakrishnan 2-Apr-20 11:28am

The web-service is working fine in Postman and chrome too. Its also working in my emulator and locally in my android device.

MadMyche 2-Apr-20 11:49am

Where is the webservice located> In House or hosted elsewhere

Rahul Ramakrishnan 2-Apr-20 11:57am

In house

MadMyche 2-Apr-20 12:02pm

Try accessing the webservice from outside of the house... i am guessing it is not publicly accessible

Rahul Ramakrishnan 2-Apr-20 12:12pm

it is publicly accessible

Richard Deeming · Answer 2 · 2020-04-02T06:06:00

Quote:
My web service uses http protocol ...

That's a likely culprit. Passing user credentials over an unsecured network protocol is an extremely bad idea, and is likely to be blocked.

Update your web service to use HTTPS instead. Depending on where and how it's hosted, you may even be able to use a free certificate from Let's Encrypt[^], so it won't cost you anything.

NB: If it's hosted with a company that won't let you use a free certificate, then you should take your business elsewhere.

Rahul Ramakrishnan · Answer 3 · 2020-05-27T18:44:00

Solution 4

I added the following code to the proguard-rules-pro file

Java

-keepclassmembers,allowobfuscation class * {
    @com.google.gson.annotations.SerializedName <fields>;
  }
-keep,allowobfuscation @interface com.google.gson.annotations.SerializedName

Now it works

Posted 27-May-20 18:44pm