The Decision to use dedicated API for clients is a controversial decision. It causes many questions, such as:

  • Why do we need to create a dedicated API for clients?
  • Why do you want to write and support so much code?
  • Why do you wouldn’t to use a single API for all clients?

Let’s do it fast and simple. Our motivation is pretty simple:

  • We want to have less code.
  • We want to keep code simple.
  • We want to have less work to support and develop API.

But for some reason, we decided that:

  • We are unable to create a single model for all clients.
  • Generalized API could be too complex for some clients.

So that way is our choice, and we know that it will not be easy.

In the next sections I will skip minuses of this approach, because they are pretty obvious. Instead, I will focus on the benefits of this approach.

We Know that We Know Nothing

Let say that we’re developing an application that aimed to be some integration hub for many other systems. But we have no enough information on how these systems work.

Cons of Dedicated API for Clients

Onboarding Hiccups for New Clients

When new clients come on board, they might find themselves at a standstill. Before they can begin, the team needs to create new endpoints tailored specifically to them. This could potentially delay the integration process. Increased Development Workload

Customization always demands more resources. Each client having their distinct API means additional development work to ensure everything runs smoothly. When it comes to functionality and bug fixes, these need to be addressed per client. This could spread resources thin and could increase the time it takes to roll out updates. Pros of a Dedicated API for Clients

A Custom-Tailored Experience

The main selling point of a dedicated API is that it caters precisely to the client’s needs. This paves the way for a better understanding of what the client requires. Another advantage is the concealment of the internal service logic. Clients only see what they need to see, ensuring a cleaner and more straightforward experience. The contract becomes client-driven, which often results in more efficient and relevant processes. Streamlined Versioning

With a dedicated API, versions are created based on the needs of the individual client. There isn’t a one-size-fits-all update, which means clients get features that are relevant to them. Clients have a vested interest in migrating to newer versions because these versions cater specifically to their evolving needs. Such a model also promotes a high level of isolation from other systems. If one client’s system experiences issues, it doesn’t ripple out to affect others. Simplification and Reduced Communication Overhead

A significant advantage of not generalizing the API means the design process is often more straightforward. Tailoring solutions for individual clients can cut out unnecessary features and bloat. Problem-solving becomes more efficient, as issues can be addressed on a per-client basis. Similarly, new functionalities are added based on individual client requirements. This reduces the amount of back-and-forth communication. In Conclusion

Adopting a dedicated API for clients can offer a more personalized, efficient, and streamlined experience. While the development overhead might increase, the benefits in terms of customization, versioning, and simplified design can make it a worthy investment for many businesses.

Before diving in, businesses should weigh these pros and cons carefully, considering their resources, client base, and long-term goals. A dedicated API strategy, when implemented thoughtfully, can lead to more satisfied clients and a smoother operational process.