August 2025
Intermediate to advanced
272 pages
6h 14m
English
Content preview from Network Programming in Elixir and ErlangBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Designing a Simple Chat Protocol
Having a well-defined protocol is a must in network systems, and you’ll stumble upon a lot of these specifications when working with existing networking code. If you’re curious, there are a few official protocol specifications you can check out to get an idea of what a real-world, detailed protocol spec looks like:
- The Redis Serialization Protocol (RESP) specification[28]
- The spec for the HPACK header serialization protocol used in HTTP/2[29]
- The header format of TCP itself (section 3 of the original spec from 1981)[30]
In this section, we’ll define our simple chat protocol and talk a bit more about protocols in general. One of the most important protocol distinctions we can make is between binary and textual protocols, ...
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