Implementing api gateway with ocelot in asp net core

**what is an api gateway?**

an api gateway acts as a single entry point for clients to access various microservices or backend apis. it decouples the client from the backend services, providing benefits like:

* **centralized routing:** directs client requests to the appropriate backend service.
* **request transformation:** modifies requests before forwarding them (e.g., adding headers, modifying payload).
* **response aggregation:** combines responses from multiple backend services into a single response for the client.
* **authentication & authorization:** handles authentication and authorization logic, ensuring security.
* **rate limiting:** controls the number of requests from a client, preventing overload.
* **monitoring & logging:** provides a central point for monitoring and logging api usage.
* **caching:** caches responses to reduce load on backend services and improve performance.

**why ocelot?**

ocelot is a lightweight, open-source api gateway built specifically for .net. it offers:

* **ease of use:** configuration-driven, making it simple to set up and manage.
* **flexibility:** supports various routing, request transformation, and middleware integrations.
* **performance:** designed for high performance and scalability.
* **extensibility:** allows you to customize and extend its functionality with custom middleware.

**prerequisites:**

* .net 7.0 or later sdk installed
* a code editor (e.g., visual studio, vs code)

**project setup:**



2. **install ocelot nuget package:**



3. **create backend apis (sim ...

#APIGateway #Ocelot #numpy
Ocelot
API Gateway
ASP.NET Core
Microservices
Routing
Load Balancing
Service Discovery
Authentication
Authorization
Middleware
Configuration
Gateway Aggregation
Rate Limiting
Caching
HTTP Requests