Today I Learned

A Hashrocket project

Compute md5 Hash Of A String

To compute the md5 digest of a string, we can use Erlang’s top-level md5 function.

> :erlang.md5("#myelixirstatus")
<<145, 148, 139, 99, 194, 176, 105, 18, 242, 246, 37, 69, 142, 69, 226, 199>>

This, however, gives us the result in the raw binary representation. We would like it in a base 16 encoding, as md5 digests tend to be.

We can wrap (or pipe) this with Base.encode16 to get the result we are looking for.

> Base.encode16(:erlang.md5("#myelixirstatus"), case: :lower)
"91948b63c2b06912f2f625458e45e2c7"

source

Looking for help? Elixir is quickly gaining momentum for web applications that need concurrency, performance, and the ability to connect to many different clients. The developers at Hashrocket are learning along with the rest of the development community that Elixir and Phoenix are viable Rails alternatives for the right application. Check out the source code for Today I Learned, written in Elixir, and contact us if you need help with your Elixir project.