Check out my new course Learn you some Lambda best practice for great good! and learn the best practices for performance, cost, security, resilience, observability and scalability.
Stumbled across this question on StackOverflow the other day, definitely one for the interview! The question goes:
How do you convert a string such as “01110100011001010111001101110100” to a byte array then used File.WriteAllBytes such that the exact binary string is the binary of the file. In this case it would be the the text “test”.
Here’s my take on the answer :-)
var binaryStr = "01110100011001010111001101110100"; var byteArray = Enumerable.Range(0, int.MaxValue/8) .Select(i => i*8) // get the starting index of which char segment .TakeWhile(i => i < binaryStr.Length) .Select(i => binaryStr.Substring(i, 8)) // get the binary string segments .Select(s => Convert.ToByte(s, 2)) // convert to byte .ToArray(); File.WriteAllBytes("C:\temp\test.txt", byteArray);
I specialise in rapidly transitioning teams to serverless and building production-ready services on AWS.
Are you struggling with serverless or need guidance on best practices? Do you want someone to review your architecture and help you avoid costly mistakes down the line? Whatever the case, I’m here to help.
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Here is a complete list of all my posts on serverless and AWS Lambda. In the meantime, here are a few of my most popular blog posts.
- Lambda optimization tip – enable HTTP keep-alive
- You are thinking about serverless costs all wrong
- Many faced threats to Serverless security
- We can do better than percentile latencies
- I’m afraid you’re thinking about AWS Lambda cold starts all wrong
- Yubl’s road to Serverless
- AWS Lambda – should you have few monolithic functions or many single-purposed functions?
- AWS Lambda – compare coldstart time with different languages, memory and code sizes
- Guys, we’re doing pagination wrong