Go / General helpers
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Staticcheck – a collection of static analysis tools for working with Go code
:100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
A Golang blocking leaky-bucket rate limit implementation
[Go] Package of validators and sanitizers for strings, numerics, slices and structs
Simple error handling primitives
Efficient token-bucket-based rate limiter package.
A modern Go utility library which provides helpers (map, find, contains, filter, ...)
a thread-safe concurrent map for go
Arbitrary expression evaluation for golang