Pay-as-you-go, A Flexible Approach to Managing Multiple Offers Simultaneously for a user
Published: 2023-10-11 19:59:59

# A Flexible Approach to Managing Multiple Offers Simultaneously

Hey there, I'm Zied Hamdi, the creator behind [UserCredits](https://github.com/ziedHamdi/UserCredits), and I'm excited to introduce you to the new approach for managing multiple offers and subscriptions simultaneously. As a developer, I understand the importance of flexibility and customization, and I'm here to show you how I've made it a reality.

## The Old Way

In the [original model](https://dev.to/zhamdi/a-pay-as-you-go-library-is-born-38jn), users were restricted to a single subscription plan. This meant that if you wanted to subscribe to different services or enjoy multiple offers, you were out of luck. That one-size-fits-all approach would have been limiting and frustrating for both users and developers.

## The New Approach

The innovation introduces the concept of "offer groups" to give users the flexibility they need. Here's how it works:

### Offer Groups

- Each offer is associated with an "offer group." An offer group is a way to categorize related offers. For example, you might have an offer group for "Mobile TV."

```typescript
interface IOffer<K extends object> {
  offerGroup: string; // e.g., "Mobile TV"
  // ...
}
```

### Multiple Subscriptions

- With this new approach, users can subscribe to multiple offers and services independently.

```typescript
interface ISubscription<K extends object> {
  offerGroup: string; // e.g., "Mobile TV"
  // ...
}
```

### Personalization

- Users can customize their subscription experience to suit their needs. Whether it's mixing and matching different offers or choosing different durations, the power is in the user's hands.

```typescript
const mobileTvSubscription: ISubscription<ObjectId> = {
  offerGroup: "Mobile TV",
  // ...
};

const phoneAppSubscription: ISubscription<ObjectId> = {
  offerGroup: "Phone App",
  // ...
};
```

### Tracking Expiry Dates and Tokens

- Each offer group has its own set of expiry dates and tokens. This ensures that your "Mobile TV" subscription doesn't interfere with your "Phone App" subscription.

```typescript
const existingOffer: IActivatedOffer | undefined = userCredits.offers.find(
  (offer) => offer.offerGroup === order.offerGroup
);
```

### Enhanced User Experience

- This new approach offers an enhanced user experience. It simplifies the management of subscriptions and allows users to enjoy various services with pay-as-you-go balance real time monitoring.

## Advantages

The advantages of this new approach are crystal clear:

1. **Flexibility**: Users can subscribe to multiple offers and services simultaneously, tailoring their experience to their preferences.

2. **Customization**: The ability to mix and match offers and durations ensures a personalized subscription experience.

3. **Simplified Management**: Offer groups make it easy to keep track of various subscriptions, tokens, and expiry dates.

4. **Enhanced User Experience**: Users have the freedom to enjoy a diverse range of services without constraints.

## Get Started

I invite you to explore this new approach and discover the difference it can make for your users. You can check out the full code and implementation details on [UserCredits](https://github.com/ziedHamdi/UserCredits) on GitHub.

Feel free to customize and contribute to the project, as I welcome any input and collaboration.

Happy coding!

**Zied Hamdi**