# Go Web Frameworks (Go)

> Gin, Echo, Fiber, Chi, routing, middleware, validation, error handling, best practices

- 20 interview questions
- Mid-Level
- [Interview Questions: Go](https://sharpskill.dev/en/technologies/go/interview-questions.md)

## 1. What primarily distinguishes Gin from other Go web frameworks?

**Answer**

Gin is known for its high performance through its radix tree-based router with zero allocation. It offers a Martini-like API but with up to 40x better performance. Gin also includes built-in JSON validation and robust middleware handling, making it a popular choice for high-performance REST APIs.

## 2. In Gin, how to extract a dynamic route parameter /users/:id?

**Answer**

Gin uses c.Param to extract dynamic route parameters defined with colons. The syntax is simple and straightforward: the parameter name exactly matches the one defined in the route. This method returns a string that must then be converted if needed to the desired type.

## 3. What is the main advantage of Fiber over Gin and Echo?

**Answer**

Fiber is built on Fasthttp instead of standard net/http, which allows it to achieve exceptional performance with a reduced memory footprint. It offers an Express.js-inspired API, familiar to Node.js developers. However, this approach means it's not compatible with standard net/http middleware and requires its own specific middleware.

## 17 more questions available

- How to implement middleware in Gin that executes before all handlers?
- In Echo, what is the difference between echo.GET and echo.Group?

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## Other Go interview topics

- [Go Basics](https://sharpskill.dev/en/technologies/go/interview-questions/go-basics.md): 25 questions, Junior
- [Go Data Structures](https://sharpskill.dev/en/technologies/go/interview-questions/go-data-structures.md): 20 questions, Junior
- [Go Interfaces](https://sharpskill.dev/en/technologies/go/interview-questions/go-interfaces.md): 18 questions, Junior
- [Error Handling](https://sharpskill.dev/en/technologies/go/interview-questions/error-handling.md): 20 questions, Junior
- [Goroutines Basics](https://sharpskill.dev/en/technologies/go/interview-questions/goroutines-basics.md): 20 questions, Junior
- [Channels](https://sharpskill.dev/en/technologies/go/interview-questions/channels.md): 22 questions, Junior
- [Go Modules](https://sharpskill.dev/en/technologies/go/interview-questions/go-modules.md): 18 questions, Mid-Level
- [HTTP Server](https://sharpskill.dev/en/technologies/go/interview-questions/http-server.md): 24 questions, Mid-Level
- [HTTP Client](https://sharpskill.dev/en/technologies/go/interview-questions/http-client.md): 18 questions, Mid-Level
- [JSON Encoding](https://sharpskill.dev/en/technologies/go/interview-questions/json-encoding.md): 20 questions, Mid-Level
- [Database/SQL](https://sharpskill.dev/en/technologies/go/interview-questions/database-sql.md): 22 questions, Mid-Level
- [Context Package](https://sharpskill.dev/en/technologies/go/interview-questions/context-package.md): 20 questions, Mid-Level
- [Testing](https://sharpskill.dev/en/technologies/go/interview-questions/testing.md): 22 questions, Mid-Level
- [Concurrency Patterns](https://sharpskill.dev/en/technologies/go/interview-questions/concurrency-patterns.md): 24 questions, Mid-Level
- [Sync Primitives](https://sharpskill.dev/en/technologies/go/interview-questions/sync-primitives.md): 22 questions, Mid-Level
- [REST API Design](https://sharpskill.dev/en/technologies/go/interview-questions/rest-api-design.md): 20 questions, Mid-Level
- [gRPC](https://sharpskill.dev/en/technologies/go/interview-questions/grpc.md): 22 questions, Mid-Level
- [Reflection](https://sharpskill.dev/en/technologies/go/interview-questions/reflection.md): 20 questions, Senior
- [Memory Management](https://sharpskill.dev/en/technologies/go/interview-questions/memory-management.md): 24 questions, Senior
- [Performance Optimization](https://sharpskill.dev/en/technologies/go/interview-questions/performance-optimization.md): 22 questions, Senior
- [Generics](https://sharpskill.dev/en/technologies/go/interview-questions/generics.md): 20 questions, Senior
- [Go Design Patterns](https://sharpskill.dev/en/technologies/go/interview-questions/design-patterns.md): 24 questions, Senior
- [Microservices](https://sharpskill.dev/en/technologies/go/interview-questions/microservices.md): 24 questions, Senior
- [Security & Authentication](https://sharpskill.dev/en/technologies/go/interview-questions/security-authentication.md): 24 questions, Senior
- [Docker & Containerization](https://sharpskill.dev/en/technologies/go/interview-questions/docker-containerization.md): 20 questions, Senior
- [Kubernetes Basics](https://sharpskill.dev/en/technologies/go/interview-questions/kubernetes-basics.md): 22 questions, Senior
- [Advanced Go](https://sharpskill.dev/en/technologies/go/interview-questions/advanced-go.md): 20 questions, Senior
- [CLI Development](https://sharpskill.dev/en/technologies/go/interview-questions/cli-development.md): 20 questions, Senior

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