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Memoization in Go
(en.wikipedia.org)
In applications where I’ve needed this, I’ve taken a manual approach. Structure the function to return a single Result struct (including an error field), develop a convention for mapping function inputs to a string, then add reads & writes to a map[string]*Result which allows me to return cached values as a shortcut. No idea if it’s the most efficient way, I’ve not actually considered finding a package to handle the process.
Edit: For more advanced behavior, what are your thoughts on the official memoize package?