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User sessions

By default, AlchemySigner user sessions are cached in localStorage for 15 minutes.

You can customize session length by passing a sessionConfig to your AlchemySigner constructor.

You can check if the user has an active session with the following command:

import { signer } from "./signer";
// NOTE: this method throws if there is no authenticated user
// so we return null in the case of an error
const user = await signer.getAuthDetails().catch(() => null);

If there is an existing session, then your signer is ready for use! If not, see the section above for logging users in.