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rails-authentication-from-scratch
A step-by-step guide on how to build your own authentication system in Rails from scratch.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
The owasp cheatsheet is probably the best resource https://cheatsheetseries.owasp.org/cheatsheets/Authentication_Cheat_Sheet.html, there's also this rails tutorial https://stevepolito.design/blog/rails-authentication-from-scratch that incorporates some (but not all) good practices that covers implementation details, but are broadly applicable to any language and framework
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