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What is Kong?

Kong is a scalable, open source API Layer (also known as an API Gateway, or API Middleware). Kong controls layer 4 and 7 traffic and is extended through Plugins, which provide extra functionality and services beyond the core platform.
Kong is a tool in the Microservices Tools category of a tech stack.
Kong is an open source tool with 24.2K GitHub stars and 3.1K GitHub forks. Here鈥檚 a link to Kong's open source repository on GitHub

Who uses Kong?

Companies
77 companies reportedly use Kong in their tech stacks, including Checkr, Policygenius, and Decision6.

Developers
127 developers on StackShare have stated that they use Kong.

Kong Integrations

nginx, Docker, PostgreSQL, Vagrant, and Cassandra are some of the popular tools that integrate with Kong. Here's a list of all 14 tools that integrate with Kong.

Why developers like Kong?

Here鈥檚 a list of reasons why companies and developers use Kong
Kong Reviews

Here are some stack decisions, common use cases and reviews by companies and developers who chose Kong in their tech stack.

Kong
Kong

I use Kong because it reliably proxies traffic quickly with an assortment of pluggable features. The engineers behind the product are of the highest quality. The Company has cultivated the largest active open source community of any API gateway. They generally squash bugs in hours or days not weeks/months. Company engineers help community members through social avenues as well as supporting large enterprise. They heavily value their product and individuals as opposed to just solely growing enterprise license fees.

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Al Tsang
Al Tsang
CEO at LunchBadger | 4 upvotes 42.2K views
atLunchBadgerLunchBadger
Tyk Cloud
Tyk Cloud
Kong
Kong
ExpressJS
ExpressJS
Express Gateway
Express Gateway
#Gateway
#OAuth2
#JWT
#APIs
Problem/Challenge

We needed a lightweight and completely customizable #microservices #gateway to be able to generate #JWT and introspect #OAuth2 tokens as well. The #gateway was going to front all #APIs for our single page web app as well as externalized #APIs for our partners.

Contenders

We looked at Tyk Cloud and Kong. Kong's plugins are all Lua based and its core is NGINX and OpenResty. Although it's open source, it's not the greatest platform to be able to customize. On top of that enterprise features are paid and expensive. Tyk is Go and the nomenclature used within Tyk like "sessions" was bizarre, and again enterprise features were paid.

Decision

We ultimately decided to roll our own using ExpressJS into Express Gateway because the use case for using ExpressJS as an #API #gateway was tried and true, in fact - all the enterprise features that the other two charge for #OAuth2 introspection etc were freely available within ExpressJS middleware.

Outcome

We opened source Express Gateway with a core set of plugins and the community started writing their own and could quickly do so by rolling lots of ExpressJS middleware into Express Gateway

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Kong
Kong

I use Kong because of the strong support and community that surrounds it . It is trusted by respectable tech companies,and so far has performed great

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Anas MOKDAD
Anas MOKDAD
Software Architect | 2 upvotes 41.8K views
Kong
Kong
Istio
Istio

As for the new support of service mesh pattern by Kong, I wonder how does it compare to Istio?

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Kong
Kong
nginx
nginx

I use Kong because of following reasons. (1) reliability (2) great community supports (3) ease of using plugins (4) surfaced free benefits of nginx

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Vincent Vermersch
Vincent Vermersch
Kong
Kong

And if developper can also code the load balancer ? Add plugin, dynamically change backend, Kong give this versatility Kong

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Kong's Features

  • Logging: Log requests and responses to your system over TCP, UDP or to disk
  • OAuth2.0: Add easily an OAuth2.0 authentication to your APIs
  • Monitoring: Live monitoring provides key load and performance server metrics
  • IP-restriction: Whitelist or blacklist IPs that can make requests
  • Authentication: Manage consumer credentials query string and header tokens
  • Rate-limiting: Block and throttle requests based on IP or authentication
  • Transformations: Add, remove or manipulate HTTP params and headers on-the-fly
  • CORS: Enable cross-origin requests to your APIs that would otherwise be blocked
  • Anything: Need custom functionality? Extend Kong with your own Lua plugins

Kong Alternatives & Comparisons

What are some alternatives to Kong?
Istio
Istio is an open platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Istio's control plane provides an abstraction layer over the underlying cluster management platform, such as Kubernetes, Mesos, etc.
Jersey
It is open source, production quality, framework for developing RESTful Web Services in Java that provides support for JAX-RS APIs and serves as a JAX-RS (JSR 311 & JSR 339) Reference Implementation. It provides it鈥檚 own API that extend the JAX-RS toolkit with additional features and utilities to further simplify RESTful service and client development.
linkerd
linkerd is an out-of-process network stack for microservices. It functions as a transparent RPC proxy, handling everything needed to make inter-service RPC safe and sane--including load-balancing, service discovery, instrumentation, and routing.
Express Gateway
A cloud-native microservices gateway completely configurable and extensible through JavaScript/Node.js built for ALL platforms and languages. Enterprise features are FREE thanks to the power of 3K+ ExpressJS battle hardened modules.
Azure Service Fabric
Azure Service Fabric is a distributed systems platform that makes it easy to package, deploy, and manage scalable and reliable microservices. Service Fabric addresses the significant challenges in developing and managing cloud apps.
See all alternatives

Kong's Followers
258 developers follow Kong to keep up with related blogs and decisions.
NiGHtmaSTeR24
Minh Nguyen
Quang Nguyen
NaveenRamaling
lukeon kim
rizky ramadhan
Alex Lui
Rudolf Harmse
Trinh Nguyen
navaganeshr