Create an account via web form

In this tutorial, we will create a userform for adding a new account right in your web UI.

To work with accounts, we will need the Accounts object and a provider, such as KeyringLocalProvider, which saves accounts in a secure store using the @polkadot/ui-keyring package.

First of all, we need to initialize the provider:

import { Accounts } from '@unique-nft/accounts';
import { KeyringLocalProvider } from '@unique-nft/accounts/keyring-local';


const options: KeyringLocalOptions = {
  type: 'sr25519', // 
  passwordCallback: async (keyring: KeyringPair) => {
	... // here you need to ask the user to enter a password to sign the transaction and return it from this callback

const provider = new KeyringLocalProvider(options);
await provider.init();

Next, we need to associate it with the Accounts instance:

const accounts = new Accounts();
await accounts.addProvider(provider);

Finally, let’s create a web form which will use this code. Please find below a code sample on React. The user interface contains two fields: a mnemonic phrase and a password that must be filled. Optionally, you can offer to fill in the account name.

<form onSubmit={onSubmit} className='create-account-form'>
    <label htmlFor="mnemonic">Mnemonic phrase*</label>
    <input id={'mnemonic'} value={mnemonicPhrase} onChange={(e) => setMnemonicPhrase(}/>
    <label htmlFor="name">Account name</label>
    <input id={'name'} value={name} onChange={(e) => setName(} />
    <label htmlFor="password">Password*</label>
    <input id={'password'} value={password} onChange={(e) => setPassword(} />
  <button type='submit' onClick={onSubmit} >Create</button>

Using the mnemonicGenerate method from the @polkadot/util-crypto library, you can generate a new mnemonic:

const newMnemonicPhrase = mnemonicGenerate();

In the onSubmit function, we will add an account through a provider this way:

const onSubmit = () => {
  provider.addUri(mnemonicPhrase, password, { name });

After that, the account will be added to the local storage and it will be possible to get it through the getAccounts method:

const accountsList = await accounts.getAccounts();