Building Custom Integrations: 7 Best Practices

Custom integrations help bridge the gap between disparate applications, allowing seamless communication and data sharing. Building the best custom integrations requires a strategic approach. Here are seven best practices to guide your integration projects:

1. Start Small and Deliver Value Early

In an ideal world, all projects start with clear goals and detailed plans. But real-world integrations are often messier. Focus on developing a minimum viable product (MVP) that solves a specific problem and delivers early wins. This iterative approach gets user feedback and showcases the integration’s value, helping secure stakeholder support for future enhancements.

2. Choose an Application Integration Platform

For managing high volumes of customer-facing integration requests, consider using an application integration solution. Such a platform offers advantages like drag-and-drop development tools and prebuilt connectors, catering to both technical and nontechnical users. This empowers you to accelerate development, simplify integration testing and efficiently manage your integration landscape.

3. Leverage Prebuilt APIs

If you have decided to use an application integration tool, prioritize those with extensive libraries of prebuilt connectors. These connectors significantly reduce development time by streamlining the process of accessing and interacting with various applications’ APIs. Look for solutions with connectors that cover both popular and niche applications to cater to a variety of integration needs.

4. Prioritize Robust Error Handling — but Test in Stages

While comprehensive error handling is key, extensive testing of every single rare situation at the MVP stage can delay initial delivery. Focus on catching major errors that would stop the integration from working at all. As you use and improve the integration, you can add more advanced error handling based on real-world experience and feedback from users. Empower this agile approach by focusing on critical errors first and incorporating more advanced error-handling routines as you go.

5. Design for Maintainability, but Keep It Simple Initially 

Keep things simple at first, but plan for future growth. Modular design principles are essential for future expansion. Imagine building your integration with easy-to-understand pieces, like building blocks. This makes it clear and easy to improve later. While fancy structures are great in the long run, at the MVP stage it’s best to prioritize simplicity over complex architecture. Focus on building clear, well-documented code that facilitates future maintenance. You can always add more complexity as you need new features.

6. Prioritize Security Based on Data Sensitivity

Robust security measures are essential to protect sensitive data. However, in the initial stages, prioritize securing only the most critical data exchanged in your MVP. This targeted approach balances security needs with development speed. As the integration evolves and handles more sensitive data, you can strengthen security protocols to address growing risks.

7. Continuously Monitor and Gather User Feedback

Don’t let your MVP be the end of the story. Once it is deployed, actively monitor performance and gather user feedback. Use analytics tools to identify bottlenecks and track key performance indicators (KPIs). Actively ask for feedback from users to understand their pain points and identify opportunities for further improvement. Continuously improve your integration using analytics from your application integration platform that provide insights into performance, highlighting bottlenecks and areas for optimization. By iterating based on real-world data and user insights, you can continuously refine the integration and ensure it delivers long-term value.

These tips help you build custom integrations quickly and keep them useful. Think of it like building something one step at a time, focusing on what matters most now. This lets you deliver improvements quickly and adapt the integration to your business as it grows and changes.

Benefits of Custom Integrations

Unlike prebuilt solutions, custom integrations are 100% tailored to your specific integration requirements, offering significant benefits:

• Streamlined workflows: Automate manual tasks and data exchange between applications, boosting efficiency and productivity.
• Enhanced customer experience: Personalize interactions and deliver a smooth user journey across all touchpoints.
• Data-driven decisions: Gain a holistic view of your data, enabling informed decision making.
• Competitive advantage: Stay ahead of the curve by using technology to its fullest potential.

To build custom integrations efficiently, the best option is to use an integration platform equipped with a toolkit dedicated to developers and integration specialists. Here are some of the advantages of using such a toolkit:

• Streamlined development: Use intuitive drag-and-drop and prebuilt connectors to Software-as-a-Service (SaaS) applications to minimize coding. Rely on built-in data transformation tools to handle filtering, aggregation, routing and more.
• Enhanced collaboration: Work together on projects, avoiding conflicts and delays. Take advantage of skill-based development that employs visual mapping or code editors to cater to diverse developer skill sets. Stay on the same page with the latest flow details with integrated documentation tools.
• Robust testing and debugging: More easily inject test messages and visualize flows. Validate data against bespoke models and pinpoint errors with step-by-step debugging. Run unit tests on individual nodes or entire flows in thousandths of a second.
• Simplified deployment: Deploy integrations across environments — on premises, cloud or hybrid.

Start Fast and Iterate as You Grow

These tips can help you build custom integrations quickly and keep them useful. Think of it like building something one step at a time, focusing on what matters most now. This lets you deliver improvements quickly and adapt the integration to your business as it grows and changes.

Ready to build powerful custom integrations? Watch this on-demand webinar or book a live demo to learn more about how the IBM App Connect Enterprise Toolkit can help you achieve your integration goals. Want to know more? Learn about new functions in IBM App Connect Enterprise 12.0, or get started by following detailed, step-by-step instructions for IBM App Connect Enterprise for Developers.