What is HTTP?

HTTP is a protocol for fetching resources, such as HTML documents.

HTTP follows a classical client-server model: a client opens a connection to make a request, then waits until a response is received from the server.

HTTP is a stateless protocol, meaning that the server does not keep any data (state) between two requests.

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Sources

• MDN Web Docs
• Documenting APIs: A guide for technical writers and engineers by Tom Johnson
• Richardson, L., & Ruby, S. (2013). RESTful web apis.