# Android SDK - v7.2 to v7.3

> Android SDK - v7.2 to v7.3 | Embedded Wallets

# Migration guide from v7.2 to v7.3 for Embedded Wallets Android SDK

## Overview

This migration guide provides steps for upgrading from version 7.2(v7.2) to version 7.3(v7.3) of the Embedded Wallets Android SDK. The guide outlines significant changes in the `request` method.

## Changes in detail

### `request` method updates

From v7.2, `loginParams` is removed from the `request` method. To further improve developer experience, developers can now pass the `chainConfig` to request signature for specific chain.

#### Before (v7.2)

```kotlin title="Usage"
val params = JsonArray().apply {
    add("Hello, World!")
    add("<User's Hex address>")
    add("Android")
}

// focus-start
val signMsgCompletableFuture = web3Auth.request(
    loginParams = LoginParams(
        selectedLoginProvider,
        extraLoginOptions = null,
        mfaLevel = MFALevel.NONE,
    ),
    "personal_sign",
    requestParams = params
)
// focus-end

signMsgCompletableFuture.whenComplete { _, error ->
    if (error == null) {
        Log.d("MainActivity_Web3Auth", "Message signed successfully")
    } else {
        Log.d("MainActivity_Web3Auth", error.message ?: "Something went wrong")
    }
}
```

#### After (v7.3)

```kotlin title="Usage"
val params = JsonArray().apply {
    add("Hello, World!")
    add("<User's Hex address>")
    add("Android")
}

// focus-start
val signMsgCompletableFuture = web3Auth.request(
     chainConfig = ChainConfig(
        chainId = "0x1",
        rpcTarget = "https://mainnet.infura.io/v3/$key",
    ),
    "personal_sign",
    requestParams = params
)
// focus-end

signMsgCompletableFuture.whenComplete { _, error ->
    if (error == null) {
        Log.d("MainActivity_Web3Auth", "Message signed successfully")
    } else {
        Log.d("MainActivity_Web3Auth", error.message ?: "Something went wrong")
    }
}
```