This hook gives you control over when you create an embedded wallet for any given user, the ability to check if a user currently has an embedded wallet, the ability to create and validate user sessions, and other helpful methods.

You can also utilize the methods in combination with each other to create a fully headless implementation of embedded wallet onboarding flows, check out the headless embedded guides for more.

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Usage

import { useEmbeddedWallet } from “@dynamic-labs/sdk-react-core”

 // component declaration and all other logic you might need
const { createEmbeddedWallet,
    createOrRestoreSession,
    createPasskey,
    getPasskeys,
    isLoadingEmbeddedWallet,
    isSessionActive,
    sendOneTimeCode,
    userHasEmbeddedWallet } = useEmbeddedWallet();

const oneTimeCodeSent = useRef(false);

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Create embedded wallet

Create an embedded wallet at any point.

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Method Signature

webAuthnAttestation argument only available from V2.1.0-alpha.9 of the SDK
createEmbeddedWallet( chains?: ChainEnum[], options?: { webAuthnAttestation: WebAuthnAttestation }): Promise<Wallet | undefined>

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Example

const onClick = async () => {
    if(!userHasEmbeddedWallet()) {
      try {
        const walletId = await createEmbeddedWallet();
        // do whatever you want with that Id
      } catch(e) {
        // handle error
      }
    }
}

return (
    <button onClick={() => onClick()}>Create Wallet</button>
)

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Create session

Create an embedded wallet session whenever you need to validate the user authenticity to perform transactions without the need to prompt user confirmation every single time.

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Steps

  1. First you need to trigger the sending of a one-time code for authenticity validation, the sendOneTimeCode method handles this.
  2. Once the user enters the one-time code, the createOrRestoreSession method will initiate a session as long as the code is valid.
const onSendOneTimeCodeHandler = async () => {
    if(!isSessionActive) {
      try {
        await sendOneTimeCode();
        oneTimeCodeSent.current = true;
        // do whatever you want with that Id
      } catch(e) {
        // handle error
      }
    }
}

const onCreateSessionHandler: FormEventHandler<HTMLFormElement> = async (event) => {
    try {
      event.stopPropagation();
      event.preventDefault();

      if (!primaryWallet || !userHasEmbeddedWallet()) return;

      const otc = event.currentTarget.otc.value;

      await createOrRestoreSession({ oneTimeCode: otc })
        .then((result) => setResult(result))
        .catch((error) => setResult(JSON.stringify(error, null, 2)));
    } catch (err) {
      logger.error(err);
    }
  };

return (
  <>
    {!oneTimeCodeSent.current && <button onClick={onSendOneTimeCodeHandler}>Start session</button>}
    {oneTimeCodeSent.current && (
      <form onSubmit={onCreateSessionHandler} className='create-session-method'>
      <Typography>
        Enter one-time code sent to email to create a session
      </Typography>

      <input required name='otc' type='text' placeholder='One-time code' />
      <br />
      <Button type='submit'>Create session</Button>

    </form>
    )}
  </>
)

​
Create passkey

Create a passkey whenever you need to validate the user authenticity to perform a transaction or to access a specific feature as well as to handle cases where the user lost access to their device.

​
Steps

  1. If the user is not in an active session, we first need to send them a one-time code for authenticity validation.
  2. Once the user enters the one-time code, the createPasskey method will validate it and create a passkey.
const onSendOneTimeCodeHandler = async () => {
    if(!isSessionActive) {
      try {
        await sendOneTimeCode();
        oneTimeCodeSent.current = true;
        // do whatever you want with that Id
      } catch(e) {
        // handle error
      }
    }
}

const onCreatePasskeyHandler: FormEventHandler<HTMLFormElement> = async (event) => {
    try {
      event.stopPropagation();
      event.preventDefault();

      if (!primaryWallet || !userHasEmbeddedWallet() || !isSessionActive) return;

      const otc = event.currentTarget.otc.value;

      await createPasskey({ oneTimeCode: otc })
        .then((result) => setResult(result))
        .catch((error) => setResult(JSON.stringify(error, null, 2)));
    } catch (err) {
      logger.error(err);
    }
  };

return (
  <>
    {!oneTimeCodeSent.current && <button onClick={onSendOneTimeCodeHandler}>Start passkey creation</button>}
    {oneTimeCodeSent.current && (
      <form onSubmit={onCreatePasskeyHandler} className='create-session-method'>
      <Typography>
        Enter one-time code sent to email to create a new passkey
      </Typography>

      <input required name='otc' type='text' placeholder='One-time code' />
      <br />
      <Button type='submit'>Create passkey</Button>

    </form>
    )}
  </>
)

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Return Values

  • createEmbeddedWallet returns a promise which will resolve to a wallet ID once the creation flow has been successful.
  • createOrRestoreSession returns a promise which will resolve to a string session_created or session_restored if the session has been created or restored successfully.
  • createPasskey returns a promise which will resolve to a passkey data (attestation, challenge, displayName) once the creation flow has been successful.
  • getPasskeys returns a promise which will resolve to an array of passkeys info.
  • isLoadingEmbeddedWallet returns a boolean which will be true if the embedded wallet is being created.
  • isSessionActive returns a boolean which will be true if the user has an active session.
  • sendOneTimeCode returns a promise which will resolve to a string code_sent if the code has been sent successfully.
  • userHasEmbeddedWallet returns a boolean which will be true if the user has an embedded wallet at that time.

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