System Design Knowledge 2 - Client Server Communication - Part I

Описание: In this video, we explained how client-server communication works, starting with how a client finds the server's IP address via DNS, then sends HTTP requests like GET and POST using REST API where request data goes in the body; the client and server need to agree on communication protocols and formats to interact correctly.

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How a Client Finds the Server (00:00 - 04:00)
To send a request, the client needs the server's IP address.
It gets this by sending a DNS request to a DNS server, which returns the IP address of the domain.

Communication Protocols (04:00 - 05:53)
The client and server communicate using protocols like HTTP/HTTPS which define the "language" they speak.

REST API (05:53 - 14:02)
REST API is commonly used for web apps to communicate with servers.
GET request - Get data from server, specify resource in URL.
PUT request - Write new data to server, data is in request body.
POST request - Update existing data on server.
DELETE request - Delete data on server.

Conclusion (14:02 - 14:19)


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