What exactly is JAMStack ?

jamstack web application javascript

What is JAMStack?

JAMStack, which stands for JavaScript, APIs, and Markup, is a modern web development architecture that separates the frontend and backend of a web application. It is based on the idea of building websites and web applications using static files that are generated at build time, rather than using dynamic pages generated by a server at runtime.

JAMStack is a way of building web applications that are fast, scalable, and secure, by leveraging the power of modern frontend JavaScript frameworks and APIs. It is a flexible and cost-effective approach that has gained popularity in recent years due to its many benefits.

Here are a few examples of JAMStack architectures:

  • A static website built with a static site generator (e.g. Gatsby, Next.js, Nuxt.js) and hosted on a CDN (e.g. GitHub Pages, Netlify, AWS S3)

  • A single-page application (SPA) built with a JavaScript framework (e.g. React, Vue.js, Angular) and hosted on a CDN, with the backend API hosted on a separate server (e.g. Heroku, AWS Lambda)

  • A serverless backend built with a cloud provider's Functions-as-a-Service (FaaS) offering (e.g. AWS Lambda, Google Cloud Functions, Azure Functions) and a static frontend hosted on a CDN, with the two components connected via API Gateway or similar

Pros of JAMStack

  • Performance: Since JAMStack applications are built using static files that are served directly from a CDN, they can be extremely fast and performant. There is no need to wait for a server to generate dynamic pages, which can lead to faster page load times and a better user experience.

  • Scalability: JAMStack applications are highly scalable, since they do not rely on a server to generate dynamic pages. This means that they can handle a large volume of traffic without experiencing any performance degradation.

  • Security: JAMStack applications are more secure, since they do not have a server-side component that can be vulnerable to attacks. This makes them less susceptible to common web application vulnerabilities such as SQL injection and cross-site scripting (XSS).

  • Development simplicity: JAMStack applications are relatively simple to develop, since they do not require a complex backend infrastructure. This makes them well-suited for small teams and solo developers who want to build applications quickly and efficiently.

  • Cost-effective: JAMStack applications are cost-effective to host, since they do not require a server and can be served directly from a CDN. This means that they can be hosted on a platform like GitHub Pages or Netlify for free, or on a low-cost cloud hosting provider like AWS S3 or Google Cloud Storage.

Cons of JAMStack

  • Limited functionality: JAMStack applications are limited in terms of the functionality they can provide, since they do not have a server-side component. This means that they cannot perform tasks such as server-side rendering, data processing, or real-time communication.

  • Limited integration with existing systems: JAMStack applications may be difficult to integrate with existing systems that rely on server-side logic, such as legacy databases or monolithic applications. This can make it challenging to migrate from a traditional server-side architecture to JAMStack.

  • Limited offline support: JAMStack applications do not have a server-side component, which means that they do not have access to server-side storage. This can make it difficult to provide offline support or to store data persistently on the client-side.

  • Limited accessibility: JAMStack applications are not always accessible to users with disabilities, since they do not have a server-side component that can generate pages with proper accessibility attributes. This can make it difficult to meet accessibility requirements and standards.

Conclusion

JAMStack is a modern web development architecture that separates the frontend and backend of a web application. It is a fast, scalable, and secure approach that has many benefits, including simplicity, cost-effectiveness, and performance. However, it also has some limitations, including limited functionality, integration with existing systems, offline support, and accessibility.