Reverse Proxy vs API Gateway vs Load Balancer 

My understanding is that a reverse proxy is a generic service sitting between clients and servers, effectively hiding the server's address. On top of it, if this service can also balance load across different servers, then it becomes a load balancer. On top of this, adding features like auth, monitoring and API management, you get an API gateway. So essentially an API gateway can also act as a load balancer and reverse proxy. For example, Kong, an API gateway, is built on top of nginx, a reverse proxy.

The most interesting thing in this video is the responsibilities, which was quickly mentioned but I think it deserves to be in the schematic. While all the items send requests to a particular backend server, they are responsible for the following: - Reverse proxy - security (hide identity of backend service/endpoint), load distribution, SSL termination, compression & caching. - API gateway - single point of entry for a collection of micro-services (different APIs/RPCs), routing requests, Authn/Authz, Monitoring & rate-limiting - Load balancer - high availability & reliability by scaling a single service dynamically (up/down) depending on traffic, Implement routing algos - round robin/least connections/ip hash The part that I think most people are confused normally is considering a system (e.g., NginX) and considering that it's only a reverse proxy. The video does a great job explaining that it may serve as both Reverse proxy as well as Load balancer.

I dropped all the programming subscriptions except for this one. You guys are making some really good explanations. Please go on.

Wonderful explained ! Kudos

You made amazing work! Thank you

Your animations are great! Do you do it all yourself or hire out for it?

Which software do you use for making animated slides?

I watch ByteByteGo video frequently i impressed with graphics, also read book High level system design, i am very curios to know how you made this graphics ?

I learned that the three concepts here are not mutually exclusive ideas. Rather, they refer to the different roles of a server placed between the client and the application server(s). Reverse proxy is the name of this server that sits between the client and app servers, acting as the "face." API gateway handles the correct use and distribution of API requests. Load balancer means this server is managing many app servers by monitoring their health and availability. Learning something new today.

Thank you for yet another great and informative tutorial! I absolutely love your content and please keep it coming for as long as possible! Be well, be safe and Cheers!!

How do we make presentations like these? Are these created via PowerPoint or any other tool?

Nginx can also route different routes to other services -> see usage as ingress in k8s

Isn't API Gateway a reverse proxy too? Yes, usually API Gateway comes with more features such as auth, rate limiting, etc. But, fundamentally, API Gateway is a reverse proxy, right?

Thanks

Thank you!

hello sir, Can you help me know what software help you made a interesting animation like that.

finally one of the better designed videos

Been years since I have seen a new project use nginx, as the Azure and AWS SaaS offerings provide the same features - or better in some cases.

I wrote my own reverse proxy in javascript.. It's not as feature rich as nginx, but it does what I need it to do.. I still want to implement websockets correctly, but that is Future Colin's problem.

They all are same, the name dictates where is it used. LB is generally provided by Service provider. Reverse proxy is a server that you install and manage. API gateway is just fancy LB with more control over headers and http configs. It generally paired with serverless functions etc etc

Adding Ingress controller aswell which is reverse proxy of kubernetes universe

so those three does the same thing (being in the middle) but they are called different names based on the services/task that they do

In my mind : - Reverse proxy forward requests to the right server according to the hostname in the request - API gateway forward requests to the right server according to the path of the request - Load balancer forward requests to the right server according to criterias of the server (aliveness, latency, requests previously sent, ...)

Big brain

I've never been this early to a video 🧐

Thank you for great explanation, but I still misderstading in terminology "Reverse" is it because of callback ? May I call this service just a proxy?

still don't see their difference from here

Can someone explain in 2:28 how can all 3 servers use same port

I thought vs would mean highlighting the differences, meaning how one is better useful than other.

400th Like (at two hours)! 😎✌️

all of these things are reverse proxies. api gateway is also a reverse proxy by definition, just with advanced functionality. also reverse proxy can and often is layer 7 load balancer , as well as reverse proxy. third example is layer 4 load balancer, but all of these can be reverse proxies or load balancers, it depends on architecture of application and context or perspective from which you are looking at the component, this video is not very accurate.

Fun fact, A Reverse proxy is a load balancer and still an API gateway😅😅. Depending on how its built tho