How to set up WebSockets in Pedestal?

Pedestal provides first-class WebSocket support through its libraries; you can define WebSocket endpoints using interceptors and handlers, with examples in the documentation on real-time features. It integrates seamlessly with the asynchronous request handling for efficient real-time communication.

Pedestal vs Ring for Clojure web development

Pedestal excels with built-in asynchronous handling and real-time support, making it better for scalable, real-time applications. Ring is simpler and more minimalist, ideal for traditional request-response cycles without the overhead of Pedestal's features. Choose Pedestal for performance-critical or real-time needs, and Ring for straightforward APIs.

Does Pedestal support GraphQL?

Pedestal does not include built-in GraphQL support; you would need to integrate third-party Clojure libraries like Lacinia or graphql-clj. Its extensible design allows for such integrations, but it requires additional setup and dependencies.

How to deploy a Pedestal app on Kubernetes?

Deploy Pedestal apps on Kubernetes by containerizing them with tools like Docker, using the embedded Jetty or Http-Kit servers. The documentation provides guidance on production configuration, including setting environment variables and optimizing resource usage for cloud deployments.

Is Pedestal good for building microservices?

Yes, Pedestal's asynchronous design and integrated observability make it well-suited for microservices, enabling scalable and monitorable services. However, its Clojure dependency might limit interoperability in polyglot microservices architectures compared to more language-agnostic frameworks.

How to add authentication to a Pedestal application?

Pedestal doesn't have built-in authentication modules; you need to use third-party Clojure libraries like buddy or implement custom interceptors. The extensible architecture allows for integrating security layers, but it requires manual configuration and testing.

Pedestal — Clojure Server-Side Application Suite

What is Pedestal?

Pedestal is a suite of Clojure libraries for server-side development that enables building secure, extensible, and high-performance web applications. It simplifies creating asynchronous services with built-in support for real-time features like Server-Sent Events and WebSockets, while integrating logging, metrics, and tracing out of the box.

Target Audience

Clojure developers building scalable server-side applications, APIs, or real-time web services who value simplicity, security, and extensibility in their tech stack.

Value Proposition

Developers choose Pedestal for its Clojure-native design, which brings the language's elegance to server-side development, along with robust defaults, asynchronous capabilities, and seamless integration with popular servers like Jetty and Http-Kit.

The Pedestal Server-side Libraries

Use Cases

Best For

Building real-time web applications with WebSockets or Server-Sent Events
Creating secure and scalable RESTful APIs in Clojure
Developing asynchronous server-side services that require non-blocking I/O
Implementing observability with integrated logging, metrics, and tracing
Prototyping server applications quickly with extensible defaults
Deploying Clojure services on Jetty or Http-Kit servers

Not Ideal For

Projects not using Clojure or teams unfamiliar with functional programming paradigms
Simple REST APIs that don't require asynchronous handling or real-time features
Applications needing extensive third-party middleware or a large plugin ecosystem
Teams looking for a full-stack framework with built-in client-side rendering or templating

Pros & Cons

Pros

Secure by Default

Built-in security practices protect against common vulnerabilities, as emphasized in the features list, ensuring applications are protected out of the box.

Asynchronous Efficiency

Manages requests without blocking, improving performance for scalable applications, which is a core feature highlighted in the README.

Real-Time Ready

Native support for Server-Sent Events and WebSockets as first-class citizens, making it ideal for building real-time web services directly from the library.

Integrated Observability

Comes with logging, metrics, and tracing built-in for monitoring application health, as stated in the key features, reducing setup overhead.

Server Flexibility

Default integration with Jetty 12 and Http-Kit allows for versatile deployment options, providing choice and adaptability for different environments.

Cons

Clojure Ecosystem Dependency

Limited to the Clojure community and libraries, which has a smaller ecosystem compared to more popular languages, potentially restricting tooling and support.

Configuration Overhead

While quick to start with a few lines of code, scaling to production requires extensive setup and tuning, as implied by the design to grow with the application.

Documentation Fragmentation

Relies on external documentation at pedestal.io, which might not be as integrated or frequently updated as inline docs, complicating learning and troubleshooting.

Java Version Constraints

Requires Java 17 or later, as noted in the README, which could be a barrier for teams operating on older Java versions or legacy systems.

What is Pedestal?

Target Audience

Clojure developers building scalable server-side applications, APIs, or real-time web services who value simplicity, security, and extensibility in their tech stack.

Value Proposition

Use Cases

Best For

Building real-time web applications with WebSockets or Server-Sent Events
Creating secure and scalable RESTful APIs in Clojure
Developing asynchronous server-side services that require non-blocking I/O
Implementing observability with integrated logging, metrics, and tracing
Prototyping server applications quickly with extensible defaults
Deploying Clojure services on Jetty or Http-Kit servers

Not Ideal For

Projects not using Clojure or teams unfamiliar with functional programming paradigms
Simple REST APIs that don't require asynchronous handling or real-time features
Applications needing extensive third-party middleware or a large plugin ecosystem
Teams looking for a full-stack framework with built-in client-side rendering or templating

Pros & Cons

Pros

Secure by Default

Built-in security practices protect against common vulnerabilities, as emphasized in the features list, ensuring applications are protected out of the box.

Asynchronous Efficiency

Manages requests without blocking, improving performance for scalable applications, which is a core feature highlighted in the README.

Real-Time Ready

Native support for Server-Sent Events and WebSockets as first-class citizens, making it ideal for building real-time web services directly from the library.

Integrated Observability

Comes with logging, metrics, and tracing built-in for monitoring application health, as stated in the key features, reducing setup overhead.

Server Flexibility

Default integration with Jetty 12 and Http-Kit allows for versatile deployment options, providing choice and adaptability for different environments.

Cons

Clojure Ecosystem Dependency

Limited to the Clojure community and libraries, which has a smaller ecosystem compared to more popular languages, potentially restricting tooling and support.

Configuration Overhead

While quick to start with a few lines of code, scaling to production requires extensive setup and tuning, as implied by the design to grow with the application.

Documentation Fragmentation

Relies on external documentation at pedestal.io, which might not be as integrated or frequently updated as inline docs, complicating learning and troubleshooting.

Java Version Constraints

Requires Java 17 or later, as noted in the README, which could be a barrier for teams operating on older Java versions or legacy systems.

Pedestal

What is Pedestal?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?

Pedestal

What is Pedestal?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?