payload-authjs/dist/authjs/withPayload.js

A Payload CMS 3 plugin for Auth.js 5

import { deepCopyObjectSimple, getPayload } from "payload";
import { PayloadAdapter } from "./PayloadAdapter";
/**
 * Wraps the Auth.js configuration
 *
 * @example
 * import { config } from "./auth.config";
 *
 * export const { handlers, signIn, signOut, auth } = NextAuth(
 *   withPayload(config, { payloadConfig }),
 * );
 */ export function withPayload(authjsConfig, { updateUserOnSignIn, events, ...options }) {
    authjsConfig = {
        ...authjsConfig
    };
    // Set default session strategy to "jwt"
    authjsConfig.session = {
        ...authjsConfig.session,
        strategy: authjsConfig.session?.strategy || "jwt"
    };
    // Register the Payload adapter for authjs
    authjsConfig.adapter = PayloadAdapter(options);
    /**
   * Update the user profile after every sign in
   * This is useful when you add new fields to the user collection (e.g. roles)
   * @see https://authjs.dev/guides/role-based-access-control#with-database
   */ if (updateUserOnSignIn === true) {
        const { signIn, ...callbacks } = authjsConfig.callbacks ?? {};
        async function updateUserOnSignInWrapper(params) {
            // Call the original signIn callback
            if (await signIn?.(params) === false) {
                return false;
            }
            // Try to update the user profile
            try {
                if (params.user.id && params.profile) {
                    await authjsConfig.adapter?.updateUser?.({
                        // eslint-disable-next-line @typescript-eslint/no-explicit-any
                        ...params.profile,
                        id: params.user.id
                    });
                }
            } catch  {
            // If user signed in the first time, the user is not found in the database and an error is thrown
            }
            return true;
        }
        authjsConfig.callbacks = {
            ...callbacks,
            // Prevent injecting the same wrapper multiple times
            signIn: signIn?.name !== "updateUserOnSignInWrapper" ? updateUserOnSignInWrapper : signIn
        };
    }
    // Forward all events from authjs and enrich them with additional parameters
    const originalEvents = deepCopyObjectSimple(authjsConfig.events ?? {});
    authjsConfig.events = Object.entries(events ?? {}).reduce((result, [key, customEvent])=>{
        const originalEvent = result[key];
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        result[key] = async (message)=>{
            // Call the original event
            await originalEvent?.(message);
            // Call the custom event
            await customEvent?.({
                ...message,
                // Add the adapter to the event
                adapter: authjsConfig.adapter,
                // Add payload to the event
                payload: options.payload ? await options.payload : options.payloadConfig ? await getPayload({
                    config: options.payloadConfig
                }) : undefined
            });
        };
        return result;
    }, originalEvents);
    return authjsConfig;
}

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