Skip to main content

How to handle SSL certificates with Fast Networking Library in Kotlin Android

How to handle SSL certificates with Fast Networking Library in Kotlin Android.

Here's a detailed step-by-step tutorial on how to handle SSL certificates with Fast Networking Library in Kotlin for Android:

Step 1: Add Fast Networking Library to your project​

To begin, you need to add the Fast Networking Library to your Android project. Open your project's build.gradle file and add the following dependency:

dependencies {
    implementation 'com.amitshekhar.android:android-networking:1.0.2'
    // Add other dependencies if required
}

Once you have added the dependency, sync your project with Gradle.

Step 2: Create a custom TrustManager​

Next, you need to create a custom TrustManager that will handle SSL certificates. Create a new Kotlin class file and name it CustomTrustManager.

import javax.net.ssl.*;

class CustomTrustManager : X509TrustManager {
    override fun checkClientTrusted(chain: Array<out X509Certificate>?, authType: String?) {
        // Implement your custom logic here
    }

    override fun checkServerTrusted(chain: Array<out X509Certificate>?, authType: String?) {
        // Implement your custom logic here
    }

    override fun getAcceptedIssuers(): Array<X509Certificate> {
        // Implement your custom logic here
    }
}

In this class, you need to implement the X509TrustManager interface. The checkClientTrusted and checkServerTrusted methods are responsible for verifying the trustworthiness of the SSL certificates. You can implement your custom logic inside these methods. The getAcceptedIssuers method returns the list of accepted issuers.

Step 3: Configure Fast Networking Library with custom TrustManager​

Once you have created the custom TrustManager, you need to configure the Fast Networking Library to use it. In your Kotlin class where you make network requests, add the following code:

import com.androidnetworking.AndroidNetworking
import com.androidnetworking.common.ConnectionQuality
import com.androidnetworking.interceptors.HttpLoggingInterceptor

val sslSocketFactory = SSLSocketFactory.getDefault() as SSLSocketFactory
val trustManager = CustomTrustManager()

val sslContext = SSLContext.getInstance("TLS")
sslContext.init(null, arrayOf<TrustManager>(trustManager), null)

val okHttpClient = OkHttpClient.Builder()
    .sslSocketFactory(sslContext.socketFactory, trustManager)
    .hostnameVerifier { _, _ -> true }
    .build()

AndroidNetworking.initialize(context, okHttpClient)

In this code, we create an SSLSocketFactory using the default SSL socket factory. Then, we create an instance of our custom TrustManager. Next, we create an SSLContext and initialize it with our custom TrustManager. Finally, we create an OkHttpClient instance and set the SSL socket factory and hostname verifier to allow all connections.

Step 4: Make network requests using Fast Networking Library​

Now that you have configured the Fast Networking Library with the custom TrustManager, you can make network requests using it. Here's an example of how to make a GET request:

AndroidNetworking.get("https://example.com/api/data")
    .build()
    .getAsJSONObject(object : JSONObjectRequestListener {
        override fun onResponse(response: JSONObject?) {
            // Handle response
        }

        override fun onError(anError: ANError?) {
            // Handle error
        }
    })

In this example, we make a GET request to https://example.com/api/data. You can replace this URL with your own API endpoint. The getAsJSONObject method is used to specify the response type, and you can handle the response or error in the onResponse and onError methods respectively.

That's it! You have successfully configured SSL certificate handling with Fast Networking Library in Kotlin for Android. You can now make secure network requests using your custom TrustManager.