Manage Wallets

Provides the abilities to allow users to create and manage their own secure wallets
A wallet manages the user's DI data, such as DIDs, their metadata and endpoints, and records. Essential wallet management capabilities are described below.
Creating a Wallet
To effectively manage a user's DI data, a wallet must be created to securely store that data.
Each wallet must be created with a unique id along with a secure passphrase. To create a new wallet on the user's device, call the createWallet method with those parameters. The chosen unique id should be saved in consuming apps, as it is required to open the wallet. 
The SDK will dispatch the createWallet call on a background thread by default.
Swift
Kotlin
let client: SudoDIWalletClient = // Instantiated client
let walletId: String = // Unique wallet identifier
​
do {
    try await client.createWallet(withId: walletId, passphrase: "[email protected]!")
} catch {
    // Handle error
}
val client: SudoDIWalletClient = // Instantiated client
val walletId: String = // Unique wallet identifier
​
launch {
    try {
        client.createWallet(walletId, "[email protected]!")
    } catch (e: DIWalletException) {
        // Handle/notify user of exception
    }
}
Opening a Wallet
To access and manage the data within a wallet, it must first be opened successfully by calling openWallet with the correct id and passphrase used when the wallet was created. If the wallet is not successfully opened, an exception/error will be thrown.
The SDK will dispatch the openWallet call on a background thread by default.
Swift
Kotlin
let client: SudoDIWalletClient = // Instantiated client
let walletId: String = // Existing wallet identifier
​
do {
    try await client.openWallet(withId: walletId, passphrase: "[email protected]!")
} catch {
    // Handle error
}
val client: SudoDIWalletClient = // Instantiated client
val walletId: String = // Existing wallet identifier
​
launch {
    try {
        client.openWallet(walletId, "[email protected]!")
    } catch (e: DIWalletException) {
        // Handle/notify user of exception
    }
}
Check if a Wallet is Open
A wallet must be open prior to performing operations inside the wallet. To check whether a wallet is open, call walletOpened with the unique identifier for the wallet, id. This can be used to ensure wallet data is accessible or that the wallet may be deleted if closed.
The SDK will dispatch the walletOpened call on a background thread by default.
Swift
Kotlin
let client: SudoDIWalletClient = // Instantiated client
let walletId: String = // Existing wallet identifier 
​
do {
    let opened: Bool = try await client.walletOpened(withId: walletId)
    if opened {
        // Handle wallet being open
    } else {
        // Handle wallet being closed
    }
} catch {
    // Handle error
}
val client: SudoDIWalletClient = // Instantiated client
val walletId: String = // Existing wallet identifier
​
launch {
    try {
        val opened: Boolean = client.walletOpened(walletId)
        if (opened) {
            // Handle wallet being open
        } else {
            // Handle wallet being closed
        }
    } catch (e: DIWalletException) {
        // Handle/notify user of exception
    }
}
Closing a Wallet
An opened wallet can be closed by calling closeWallet with the id of the wallet used for creation via the createWallet API. Closing a wallet will disallow read and write operations to the wallet until it is subsequently opened again. A wallet may be deleted once closed via the deleteWallet API. 
The SDK will dispatch the closeWallet call on a background thread by default.
Swift
Kotlin
let client: SudoDIWalletClient = // Instantiated client
let walletId: String = // Wallet identifier of an open wallet
​
do {
    try await client.closeWallet(withId: walletId)
} catch {
    // Handle error
}
val client: SudoDIWalletClient = // Instantiated client
val walletId: String = // Wallet identifier of an open wallet
​
launch {
    try {
        client.closeWallet(walletId)
    } catch (e: DIWalletException) {
        // Handle/notify user of exception
    }
}
Deleting a Wallet
To delete a wallet from storage on the user's device, call deleteWallet with the id and passphrase that was used to originally create the wallet. Deleting the wallet will erase all of the user's DI data within that wallet. The wallet must be closed before deleting it.
The SDK will dispatch the deleteWallet call on a background thread by default.
Swift
Kotlin
let client: SudoDIWalletClient = // Instantiated client
let walletId: String = // Existing wallet identifier
​
do {
    try await client.deleteWallet(withId: walletId, passphrase: "[email protected]!")
} catch {
    // Handle error
}
val client: SudoDIWalletClient = // Instantiated client
val walletId: String = // Existing wallet identifier
​
launch {
    try {
        client.deleteWallet(walletId, "[email protected]!")
    } catch (e: DIWalletException) {
        // Handle/notify user of exception
    }
}
Check if a Wallet Exists
The existence of a wallet identified by id can be checked using walletExists.
The SDK will dispatch the walletExists call on a background thread by default.
Swift
Kotlin
let client: SudoDIWalletClient = // Instantiated client
let walletId: String = // Wallet identifier
​
do {
    let exists: Bool = try await client.walletExists(withId: walletId)
    if exists {
        // Handle wallet existing
    } else {
        // Handle wallet not existing
    }
} catch {
    // Handle error
}
val client: SudoDIWalletClient = // Instantiated client
val walletId: String = // Wallet identifier
​
launch {
    try {
        val exists: Boolean = client.walletExists(walletId)
        if (exists) {
            // Handle wallet existing
        } else {
            // Handle wallet not existing
        }
    } catch (e: DIWalletException) {
        // Handle/notify user of exception
    }
}
Integrate the Wallet SDK
Manage DIDs
Last modified 8mo ago