How do you connect web apps to other systems?

1 Web app architecture

Before we dive into the details of web app integration, let's review some of the basic concepts of web app architecture. A web app typically consists of three main layers: the front-end, the back-end, and the database. The front-end is the part of the web app that the user sees and interacts with, such as the user interface, graphics, and navigation. The back-end is the part of the web app that handles the logic, processing, and functionality of the app, such as authentication, validation, and computation. The database is the part of the web app that stores and retrieves the data that the app uses, such as user profiles, orders, or transactions.

2 Web app integration methods

When connecting web apps to other systems, the type, purpose, and complexity of the integration will determine the most suitable methods. RESTful APIs are a popular choice as they are simple, scalable, and flexible, using HTTP methods such as GET, POST, PUT, and DELETE to exchange data in a standardized format. SOAP APIs are more secure and reliable than RESTful APIs, but more complex and rigid due to XML messages and predefined formats. Webhooks are event-driven web services that use HTTP callbacks to send data from one system to another when a specific event occurs. Lastly, GraphQL is a query language and web service that allows web apps to request and receive data from other systems in an optimized way using a single endpoint; this reduces the amount of data transfer, network requests, and server load.

3 Web app integration challenges

Web developers must consider and overcome several challenges when connecting web apps to other systems, such as data compatibility, integration testing, and integration maintenance. Data compatibility is affected by factors like data format, structure, quality, validation, and security. Web developers must use techniques like data transformation and encryption to ensure the data they send and receive is compatible. Integration testing requires tools such as Postman or SoapUI and best practices such as test automation and coverage. Integration maintenance necessitates constant monitoring, troubleshooting, and updating of the web app and other systems. Tools such as Zapier or Dell Boomi can be used for this purpose, as well as best practices like logging and alerting. Understanding the methods, challenges, and best practices of web app integration is critical for creating powerful, reliable, and user-friendly applications.

4 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?