How to call axios/api call in Nativescript application

I tested the exact same project you have shared in Github with Android 8.0, it works perfectly fine. The axios call hits the error block as the response status (error.response.status) is 401 and data (error.response.data) returns the exact same response you see from Postman.

If you are using Android 9 or later it might fail as you haven't enabled useCleartextTraffic on your application tag in the AndroidManifest.xml.

<application 
        android:usesCleartextTraffic="true"
        android:name="com.tns.NativeScriptApplication"

With iOS also it would fail as you haven't enabled app transport security. Just to allow all Http communication within your app, you have to add the following key to your info.plist

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>

In case if you want to allow only specific domains, then use NSExceptionDomains key and list the endpoints.

The problem has to do with how axios is imported. Try:

import axios from 'axios/dist/axios'

this also solves the Module not found: Error: Can't resolve 'net' in... error.

When importing the package normally my requests failed, returning the error

Error in v-on handler (Promise/async): "Error: Request failed with status code null"