:100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
Mergo: merging Go structs and maps since 2013.
Quick and dirty debugging output for tired Go programmers
The exponential backoff algorithm in Go
Staticcheck - The advanced Go linter
Simple error handling primitives
Circuit Breaker implemented in Go
Golang plugin system over RPC.
[Go] Package of validators and sanitizers for strings, numerics, slices and structs