src/util/connections/RefreshableConnection.ts


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import { ConnectedAccount } from "../entities";
import { ConnectedAccountCommonOAuthTokenResponse } from "../interfaces";
import Connection from "./Connection";

/**
 * A connection that can refresh its token.
 */
export default abstract class RefreshableConnection extends Connection {
	refreshEnabled = true;
	/**
	 * Refreshes the token for a connected account.
	 * @param connectedAccount The connected account to refresh
	 */
	abstract refreshToken(
		connectedAccount: ConnectedAccount,
	): Promise<ConnectedAccountCommonOAuthTokenResponse>;

	/**
	 * Refreshes the token for a connected account and saves it to the database.
	 * @param connectedAccount The connected account to refresh
	 */
	async refresh(
		connectedAccount: ConnectedAccount,
	): Promise<ConnectedAccountCommonOAuthTokenResponse> {
		const tokenData = await this.refreshToken(connectedAccount);
		connectedAccount.token_data = { ...tokenData, fetched_at: Date.now() };
		await connectedAccount.save();
		return tokenData;
	}
}