diff --git a/.github/workflows/publish_swift_package.yml b/.github/workflows/publish_swift_package.yml
index 0be89cf1..7d2013e8 100644
--- a/.github/workflows/publish_swift_package.yml
+++ b/.github/workflows/publish_swift_package.yml
@@ -44,7 +44,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download directory with swift package
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: swiftpackage
           path: swiftpackage
diff --git a/samples/android/app/build.gradle.kts b/samples/android/app/build.gradle.kts
index 6f0f9e7d..ef1554c9 100644
--- a/samples/android/app/build.gradle.kts
+++ b/samples/android/app/build.gradle.kts
@@ -59,11 +59,19 @@ dependencies {
     implementation(libs.androidx.ui.graphics)
     implementation(libs.androidx.ui.tooling.preview)
     implementation(libs.androidx.material3)
+
+    implementation(platform(libs.koin.bom))
+    implementation(libs.koin.android)
+
+    implementation("io.github.victorkabata:daraja-multiplatform:0.9.6")
+
     testImplementation(libs.junit)
+
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
     androidTestImplementation(platform(libs.androidx.compose.bom))
     androidTestImplementation(libs.androidx.ui.test.junit4)
+
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
 }
\ No newline at end of file
diff --git a/samples/android/app/src/main/AndroidManifest.xml b/samples/android/app/src/main/AndroidManifest.xml
index 5885a0c1..1408c004 100644
--- a/samples/android/app/src/main/AndroidManifest.xml
+++ b/samples/android/app/src/main/AndroidManifest.xml
@@ -2,7 +2,10 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET"/>
+
     <application
+        android:name=".DarajaAndroidApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
diff --git a/samples/android/app/src/main/java/com/vickbt/daraja/android/DarajaAndroidApplication.kt b/samples/android/app/src/main/java/com/vickbt/daraja/android/DarajaAndroidApplication.kt
new file mode 100644
index 00000000..3494d953
--- /dev/null
+++ b/samples/android/app/src/main/java/com/vickbt/daraja/android/DarajaAndroidApplication.kt
@@ -0,0 +1,20 @@
+package com.vickbt.daraja.android
+
+import android.app.Application
+import com.vickbt.daraja.android.di.appModule
+import org.koin.android.ext.koin.androidContext
+import org.koin.core.context.startKoin
+
+class DarajaAndroidApplication:Application() {
+
+    override fun onCreate() {
+        super.onCreate()
+
+        startKoin {
+            androidContext(this@DarajaAndroidApplication)
+            modules(appModule)
+        }
+
+    }
+
+}
\ No newline at end of file
diff --git a/samples/android/app/src/main/java/com/vickbt/daraja/android/di/AppModule.kt b/samples/android/app/src/main/java/com/vickbt/daraja/android/di/AppModule.kt
new file mode 100644
index 00000000..26e938f6
--- /dev/null
+++ b/samples/android/app/src/main/java/com/vickbt/daraja/android/di/AppModule.kt
@@ -0,0 +1,16 @@
+package com.vickbt.daraja.android.di
+
+import com.vickbt.darajakmp.Daraja
+import org.koin.dsl.module
+
+val appModule = module {
+    // Provide a single instance of Daraja
+    single {
+        Daraja.Builder()
+            .setConsumerKey("consumer_key")
+            .setConsumerSecret("consumer_secret")
+            .setPassKey("pass_key")
+            .isSandbox()
+            .build()
+    }
+}
\ No newline at end of file
diff --git a/samples/android/app/src/main/java/com/vickbt/daraja/android/ui/screen/MpesaExpressScreen.kt b/samples/android/app/src/main/java/com/vickbt/daraja/android/ui/screen/MpesaExpressScreen.kt
index 95d67737..e40ce14c 100644
--- a/samples/android/app/src/main/java/com/vickbt/daraja/android/ui/screen/MpesaExpressScreen.kt
+++ b/samples/android/app/src/main/java/com/vickbt/daraja/android/ui/screen/MpesaExpressScreen.kt
@@ -2,9 +2,11 @@
 
 package com.vickbt.daraja.android.ui.screen
 
+import android.util.Log
+import android.widget.Toast
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.wrapContentSize
@@ -12,7 +14,7 @@ import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.rounded.Send
-import androidx.compose.material.icons.rounded.Send
+import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.FloatingActionButton
 import androidx.compose.material3.FloatingActionButtonDefaults
@@ -29,23 +31,29 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.res.colorResource
-import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import com.vickbt.daraja.android.ui.theme.DarajaAndroidTheme
+import com.vickbt.darajakmp.Daraja
+import com.vickbt.darajakmp.utils.DarajaTransactionType
+import com.vickbt.darajakmp.utils.onFailure
+import com.vickbt.darajakmp.utils.onSuccess
+import org.koin.compose.koinInject
 
 @Composable
-fun MpesaExpressScreen(modifier: Modifier = Modifier) {
+fun MpesaExpressScreen(modifier: Modifier = Modifier, daraja: Daraja = koinInject()) {
+
+    val context = LocalContext.current
 
     val tillNumber by remember { mutableStateOf("174379") }
     var amount by remember { mutableIntStateOf(1) }
     var phoneNumber by remember { mutableStateOf("") }
 
+    var isLoading by remember { mutableStateOf(false) }
+
     Column(
         modifier = modifier.wrapContentSize(),
         verticalArrangement = Arrangement.spacedBy(
@@ -68,6 +76,7 @@ fun MpesaExpressScreen(modifier: Modifier = Modifier) {
             label = { Text(text = "Amount") },
             colors = TextFieldDefaults.outlinedTextFieldColors(focusedBorderColor = MaterialTheme.colorScheme.primary),
             keyboardOptions = KeyboardOptions.Default.copy(keyboardType = KeyboardType.Number),
+            //keyboardActions = KeyboardOptions.Default.copy(imeAction = ImeAction.Next)
         )
 
         OutlinedTextField(
@@ -84,30 +93,53 @@ fun MpesaExpressScreen(modifier: Modifier = Modifier) {
             label = { Text(text = "Phone Number") },
             colors = TextFieldDefaults.outlinedTextFieldColors(focusedBorderColor = MaterialTheme.colorScheme.primary),
             keyboardOptions = KeyboardOptions.Default.copy(keyboardType = KeyboardType.Phone),
+            // keyboardActions = KeyboardOptions.Default.copy(imeAction = ImeAction.Done)
         )
 
-        FloatingActionButton(
-            modifier = Modifier,
-            shape = CircleShape,
-            containerColor = MaterialTheme.colorScheme.primary,
-            contentColor = MaterialTheme.colorScheme.onPrimary,
-            elevation = FloatingActionButtonDefaults.elevation(),
-            onClick = {},
-        ) {
-            Icon(
-                modifier = Modifier.size(28.dp),
-                imageVector = Icons.AutoMirrored.Rounded.Send,
-                contentDescription = "Pay"
-            )
+        Log.e("VicKbt", "Is loading: $isLoading")
+
+        Box(modifier = Modifier){
+            FloatingActionButton(
+                modifier = Modifier.align(Alignment.Center),
+                shape = CircleShape,
+                containerColor = MaterialTheme.colorScheme.primary,
+                contentColor = MaterialTheme.colorScheme.onPrimary,
+                elevation = FloatingActionButtonDefaults.elevation(),
+                onClick = {
+                    isLoading = true
+
+                    daraja.mpesaExpress(
+                        businessShortCode = tillNumber,
+                        amount = amount,
+                        phoneNumber = phoneNumber,
+                        transactionType = DarajaTransactionType.CustomerPayBillOnline,
+                        transactionDesc = "Empty transaction to test SDK",
+                        callbackUrl = "https://mydomain.com",
+                        accountReference = "CompanyX"
+                    ).onSuccess {
+                        Toast.makeText(context, "Success: $it", Toast.LENGTH_SHORT).show()
+                    }.onFailure {
+                        Toast.makeText(context, "Error: ${it.errorMessage}", Toast.LENGTH_SHORT).show()
+                    }
+
+                },
+            ) {
+                Icon(
+                    modifier = Modifier.size(28.dp),
+                    imageVector = Icons.AutoMirrored.Rounded.Send,
+                    contentDescription = "Pay"
+                )
+            }
+
+            if (isLoading){
+                CircularProgressIndicator(modifier = Modifier.align(Alignment.Center), trackColor = MaterialTheme.colorScheme.onPrimary)
+            }
         }
     }
-
 }
 
 @Composable
 @Preview(showBackground = true)
 fun MpesaExpressScreenPreview() {
-    DarajaAndroidTheme(darkTheme = true) {
-        MpesaExpressScreen()
-    }
+    MpesaExpressScreen()
 }
\ No newline at end of file
diff --git a/samples/android/gradle/libs.versions.toml b/samples/android/gradle/libs.versions.toml
index d4d4d6c2..eddd3b74 100644
--- a/samples/android/gradle/libs.versions.toml
+++ b/samples/android/gradle/libs.versions.toml
@@ -8,6 +8,7 @@ espressoCore = "3.6.1"
 lifecycleRuntimeKtx = "2.8.4"
 activityCompose = "1.9.1"
 composeBom = "2024.04.01"
+koinBom = "3.5.6"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
@@ -25,6 +26,9 @@ androidx-ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-man
 androidx-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
 androidx-material3 = { group = "androidx.compose.material3", name = "material3" }
 
+koin-bom = { module = "io.insert-koin:koin-bom", version.ref = "koinBom" }
+koin-android = { module = "io.insert-koin:koin-androidx-compose" }
+
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
 jetbrains-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }