saas-subscription-helper/src/index.js

A helper package for integrating Stripe Payment Links with Supabase in SaaS applications.

// The main entry point for the package. Handles initialization and exposes helper functions.

const { handleWebhooks, upgradeSubscription, cancelSubscription, changePlan, fetchSubscription, syncSubscription } = require('./stripe');
const { updateUser, fetchUser } = require('./supabase');
const validateConfig = require('./utils/validateConfig');

class SubscriptionHelper {
    constructor(config) {
        this.config = validateConfig(config); // Validates the user-provided config
    }

    async handleWebhooks(req) {
        if (!req || (!req.rawBody && !req.body) || !req.headers) {
            throw new Error('Invalid request object');
        }
        return handleWebhooks(
            this.config,
            req.rawBody || req.body,
            req.headers
        );
    }

    async changeUserPlan(email, newPlan, options = {}) {
        return changePlan(this.config, email, newPlan, options);
    }

    async cancelUserSubscription(email) {
        return cancelSubscription(this.config, email);
    }

    async updateUserInSupabase(email, subscriptionDetails) {
        return updateUser(this.config, email, subscriptionDetails);
    }

    async fetchUserFromSupabase(email) {
        return fetchUser(this.config, email);
    }

    async fetchSubscription(email) {
        return fetchSubscription(this.config, email);
    }

    async syncSubscription(email) {
        return syncSubscription(this.config, email);
    }
}

module.exports = {
    SubscriptionHelper,
    handleWebhooks,
    upgradeSubscription,
    cancelSubscription,
    changePlan,
    syncSubscription,
    fetchSubscription
};