# expressgateway/express-gateway **Attribution required: if you use, quote, or summarise this content, you must credit and link back to [awesome-repositories.com](https://awesome-repositories.com/repository/expressgateway-express-gateway).** 3,035 stars · 353 forks · JavaScript · Apache-2.0 ## Links - GitHub: https://github.com/ExpressGateway/express-gateway - Homepage: https://www.express-gateway.io - awesome-repositories: https://awesome-repositories.com/repository/expressgateway-express-gateway.md ## Topics `api-gateway` `endpoints` `express-gateway` `express-middleware` `expressjs` `javascript` `microservice` `microservices` `oauth2` `oauth2-server` `security` `service-discovery` ## Description Express Gateway is a centralized API gateway built on the Express.js framework, designed to serve as a single entry point for microservices architectures. It manages incoming network traffic by routing requests to backend services based on defined path-based rules while enforcing security policies and authentication protocols at the edge. The system distinguishes itself through a configuration-driven approach that utilizes a centralized definition file to dictate routing logic and policy application. It features a hot-reloading engine that allows for real-time updates to routing rules and security policies without interrupting active network connections or requiring service restarts. Developers can extend the gateway's functionality by injecting custom logic through a plugin-based architecture that integrates directly into the standard middleware execution flow. The platform provides comprehensive tools for managing API consumers, including client registration and credential validation via API keys or token-based authentication. It also supports distributed system observability by integrating with tracing tools to monitor request flows and identify performance bottlenecks across complex service environments. Administrative control is facilitated through a command-line interface that enables system management and the automation of deployment workflows. The gateway is designed for portability and can be deployed within containerized environments across public clouds and private infrastructure. ## Tags ### Networking & Communication - [Traffic Routing](https://awesome-repositories.com/f/networking-communication/traffic-routing.md) — Directs incoming network requests to appropriate backend microservices using path-based routing rules. ([source](http://www.express-gateway.io/)) - [Centralized API Gateways](https://awesome-repositories.com/f/networking-communication/centralized-api-gateways.md) — Acts as a single entry point for distributed microservices to consolidate authentication, traffic management, and request tracing. - [Gateway-Based Request Routings](https://awesome-repositories.com/f/networking-communication/network-infrastructure-routing/network-routing-traffic-management/request-routing/internal-microservice-request-routings/gateway-based-request-routings.md) — Forwards incoming network requests to backend services based on defined path-based routing rules. ([source](http://www.express-gateway.io/getting-started)) - [Middleware-Based Request Pipelines](https://awesome-repositories.com/f/networking-communication/communication-protocols-architectures/request-processing-architectures/request-processing/middleware-based-request-pipelines.md) — Processes incoming network requests through a sequential chain of modular functions that handle routing, security, and data transformation. - [Edge Traffic Management](https://awesome-repositories.com/f/networking-communication/network-infrastructure-routing/network-routing-traffic-management/network-routing/edge-traffic-management.md) — Directs incoming network requests to backend services while applying authentication and authorization controls at the edge. ### Web Development - [API Gateway Utilities](https://awesome-repositories.com/f/web-development/node-js-backend-services/api-gateway-utilities.md) — Provides a centralized entry point for microservices that routes traffic, enforces security, and manages consumers using Express.js middleware. ### Security & Cryptography - [API Access Management](https://awesome-repositories.com/f/security-cryptography/api-access-management.md) — Provides comprehensive tools for registering API consumers and managing their credentials to control access levels. ([source](https://github.com/expressgateway/express-gateway#readme)) - [Key Authentication Enforcers](https://awesome-repositories.com/f/security-cryptography/api-key-authentication/key-authentication-enforcers.md) — Enforces access control by validating API keys in incoming request headers to prevent unauthorized access. ([source](http://www.express-gateway.io/getting-started)) - [API Request Authentication](https://awesome-repositories.com/f/security-cryptography/identity-access-management/authentication-strategies/machine-and-protocol-identity/api-machine-authentication/api-request-authentication.md) — Validates incoming traffic using token-based protocols to ensure only authorized clients access protected backend resources. ([source](http://www.express-gateway.io/docs)) ### Development Tools & Productivity - [CLI Gateways](https://awesome-repositories.com/f/development-tools-productivity/cli-gateways.md) — Provides a command-line interface for executing administrative tasks and automating deployment workflows. ([source](https://github.com/expressgateway/express-gateway#readme)) - [Dynamic Configuration](https://awesome-repositories.com/f/development-tools-productivity/dynamic-configuration.md) — Supports real-time updates to routing rules and security policies without requiring service restarts. ([source](https://github.com/expressgateway/express-gateway#readme)) ### DevOps & Infrastructure - [API Management Platforms](https://awesome-repositories.com/f/devops-infrastructure/api-service-management/api-management/api-documentation-publishing/api-management-platforms.md) — Registers clients, validates API keys, and monitors usage patterns across distributed service architectures. - [Containerized Deployments](https://awesome-repositories.com/f/devops-infrastructure/containerized-deployments.md) — Runs within portable container images to ensure consistent performance and reliable operation across diverse infrastructure. ([source](http://www.express-gateway.io/)) - [CLI Control Interfaces](https://awesome-repositories.com/f/devops-infrastructure/control-planes/cli-control-interfaces.md) — Provides a command-line interface to manage system settings and automate deployment workflows. - [Dynamic Configuration Management](https://awesome-repositories.com/f/devops-infrastructure/dynamic-configuration-management.md) — Updates routing rules and security policies in real time without interrupting active traffic or requiring service restarts. - [Multi-Environment Deployments](https://awesome-repositories.com/f/devops-infrastructure/multi-environment-deployments.md) — Supports deployment across diverse cloud and private infrastructure, integrating with orchestration and service mesh tooling. ([source](https://www.express-gateway.io/)) ### Software Engineering & Architecture - [Custom Middleware Implementations](https://awesome-repositories.com/f/software-engineering-architecture/middleware/custom-middleware-implementations.md) — Integrates custom logic or third-party modules using standard middleware patterns to adapt request processing. ([source](https://github.com/expressgateway/express-gateway#readme)) - [Plugin-Based Extensibility](https://awesome-repositories.com/f/software-engineering-architecture/plugin-based-extensibility.md) — Allows developers to inject custom logic into the request lifecycle by registering external modules within the middleware execution flow. ### System Administration & Monitoring - [Configuration-Driven Routing Logic](https://awesome-repositories.com/f/system-administration-monitoring/administrative-operations/linux-system-administration/networking/proxy-management-systems/traffic-routing-controllers/configuration-driven-routing-logic.md) — Maps external traffic to backend services using a centralized definition file that dictates routing logic. - [Configuration Hot-Reloading](https://awesome-repositories.com/f/system-administration-monitoring/configuration-hot-reloading.md) — Monitors and parses updated policy files in memory to apply system changes instantly without interrupting active network connections. - [Distributed Tracing](https://awesome-repositories.com/f/system-administration-monitoring/monitoring-and-observability/observability-platforms/distributed-tracing-execution-analysis/distributed-tracing.md) — Integrates with distributed tracing systems to monitor request flows and identify performance bottlenecks across microservices. ([source](http://www.express-gateway.io/docs)) ### Part of an Awesome List - [API Gateways](https://awesome-repositories.com/f/awesome-lists/devops/api-gateways.md) — Microservices gateway built on the Node.js ecosystem. - [API Gateways and Proxies](https://awesome-repositories.com/f/awesome-lists/devtools/api-gateways-and-proxies.md) — API gateway built on the ExpressJS framework.