2022-11-16 13:05:09 +01:00
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# Lander
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## The idea
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A URL shortener has always been on my list of things I'd like to write myself.
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It's simple, yet useful.
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for our Algorithms & Datastructures 3 class, we had to implement three
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different tries (Patricia trie, ternary trie, and a custom one). Considering
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these are efficient string-based search trees, this gave me the idea to use it
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as the backend for a URL shortener!
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This implementation currently uses a ternary trie as its search tree. The
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persistence model is very simple; I simply append a line to a text file every
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time a URL is added, and add the lines of this file to the trie on startup. The
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trie is stored completely im memory, and no I/O operations are required when
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requesting a redirect. This makes the server very fast.
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## The name
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I gave up giving my projects original names a long time ago, so now I just use
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the names of my friends ;p
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2023-05-31 20:39:06 +02:00
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## Benchmarking
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I benchmark this tool using the [`wrk2`](https://github.com/giltene/wrk2)
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utility. I've provided two Lua scripts to aid with this. To bench publishing
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redirects, use the following:
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```sh
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wrk2 -s bench/post.lua -t 10 -R 10k -d30s -c32 http://localhost:18080
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```
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And to bench GET requests:
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```sh
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wrk2 -s bench/get.lua -t 10 -R 25k -d30s -c32 http://localhost:18080
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```
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Of course you're free to change the parameters, but the provided Lua files
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generate URLs that can be used in the benchmark.
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