SolidJS is a declarative JavaScript UI library emphasizing performance through fine-grained reactivity. It compiles to real DOM nodes and uses explicit reactive primitives, avoiding the virtual DOM overhead common in other frameworks. This approach results in efficient updates, minimal memory usage, and excellent performance, particularly for complex and dynamic applications. SolidJS also offers features like JSX templating, server-side rendering, and a compact API, making it a powerful and efficient alternative for building user interfaces.
This blog post explores using a Backend for Frontend (BFF) pattern with Keycloak to secure an Angular application. It advocates for abstracting Keycloak's complexities from the frontend by placing a Node.js BFF between the Angular application and Keycloak. The BFF handles authentication and authorization, retrieving user roles and access tokens from Keycloak and forwarding them to the Angular client. This simplifies the Angular application's logic and improves security by keeping Keycloak configuration details on the server-side. The post demonstrates how the BFF can obtain an access token using a client credential flow and how the Angular application can then utilize this token for secure communication with backend services, promoting a cleaner separation of concerns and enhanced security.
Hacker News users discuss the complexity and potential overhead introduced by using Keycloak and a Backend-for-Frontend (BFF) pattern with Angular. Several commenters question the necessity of a BFF in simpler applications, suggesting Keycloak could integrate directly with the Angular frontend. Others highlight the benefits of a BFF for abstracting backend services and handling complex authorization logic, especially in larger or microservice-based architectures. The discussion also touches on alternative authentication solutions like Auth0 and FusionAuth, with some users preferring their perceived simplicity. Overall, the comments suggest a balanced view, acknowledging the trade-offs between simplicity and scalability when choosing an architecture involving authentication and authorization.
Summary of Comments ( 137 )
https://news.ycombinator.com/item?id=43734911
Hacker News commenters generally expressed positive sentiment towards SolidJS, praising its performance, small bundle size, and resemblance to React's functional components with JSX. Several pointed out its efficient use of fine-grained reactivity, comparing it favorably to Svelte's compiled approach and noting its potential for better performance in complex updates. Some questioned its relatively smaller community and ecosystem compared to React or Vue, but acknowledged its growing popularity. A few experienced users shared positive anecdotes about using Solid in production, highlighting its speed and ease of debugging. Some discussion revolved around its similarity to KnockoutJS, with some suggesting Solid as a modern successor. There was also interest in its server-side rendering capabilities and potential for broader adoption.
The Hacker News thread linked discusses SolidJS, a reactive JavaScript library for building user interfaces. The discussion is fairly active with a variety of perspectives on the framework.
Several commenters praise Solid's performance, often comparing it favorably to React, Vue, and Svelte. One commenter highlights Solid's efficient use of fine-grained reactivity, arguing that it leads to better performance, especially in complex applications. They appreciate that updates are very targeted and don't cause unnecessary re-renders. Another user echoes this sentiment, emphasizing Solid's ability to surgically update the DOM, which they see as a key advantage. This theme of performance and efficiency appears repeatedly in the thread, establishing it as a core strength perceived by many commenters.
Some discussion revolves around the learning curve of Solid. While some find it relatively easy to grasp, particularly those coming from a React background, others note the need to adjust to its unique reactivity model. One commenter mentions the initial hurdle of understanding Signals, Solid's core reactive primitive, but emphasizes that the effort pays off in terms of performance gains. Another user points out the potential confusion stemming from Solid's use of JSX, which while similar to React's, has subtle differences in how it handles reactivity.
The topic of developer tooling and ecosystem maturity also comes up. One commenter expresses a desire for better debugging tools tailored specifically for Solid's reactive system. Others acknowledge that while the ecosystem is smaller than React's or Vue's, it is growing steadily. There's a mention of Solid's relatively small bundle size, which is seen as a benefit for performance and initial load times.
A few comments touch upon the comparison between Solid and Svelte. One user highlights the difference in their compilation strategies, noting that Svelte compiles components into highly optimized vanilla JavaScript, while Solid relies on its runtime reactivity system. Another commenter suggests that Solid's approach might offer more flexibility in certain scenarios.
Several users appreciate Solid's commitment to staying small and focused, contrasting it with the larger, more feature-rich frameworks like React. They see this as a positive aspect, believing it leads to a more maintainable and understandable codebase. Finally, the creator of SolidJS, Ryan Carniato, actively participates in the thread, answering questions and addressing concerns raised by commenters. His involvement is appreciated by the community and contributes to a productive discussion.