doc: add example of secret key base usage #136
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While reading through the
1.8.0
and2.0.0-rc1
docs, I was trying to understand what exactly thehandler
function'ssecret_key_base
parameter would be responsible of signing and encrypting.After scanning the example pages, I could see that it is at least used for Cookie Signing.
Would it be worth to include that info in the HexDocs as done in this PR or do you consider this an implementation detail?
What other areas is the
secret_key_base
used in, if any? I would update the PR accordingly