Weird moments in Elixir




Calling Erlang external libraries.

Say you have the huge bunch of erlang libaries goodies from here, how do you call it?  Well, fire up your iex and then run the following command :

:inet.gethostname()

And you get the output.


Map data stucture : creating a map using %{}

map = %{:a => 1, 2 => :b}

Pipe operator |>



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The specified initialization vector (IV) does not match the block size for this algorithm

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If you're getting  exception when trying to assigned key to a symmetric key and getting error message below :- The specified initialization vector (IV) does not match the block size for this algorithm And your code probably look like something below :- Then you need to go into debug mode and start looking into the supported size for IV as shown in diagram below :- As you can see, IV is 16 bytes, so you need to provide 16 bytes. The same goes for Key field too, if you're adding anything to it. As long as you provide a valid key size, then we're good and you're code will be ready.
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