Phil Eaton • 7/10/2022

Implementing a simple jq clone in Go, and basics of Go memory profiling

This technical article guides readers through implementing a simplified jq clone in Go, capable of extracting values from JSON objects using a path. It covers creating a control implementation with Go's standard library, then building a custom 600-line parser using 'partial parsing' to reduce memory usage. The post concludes with an introduction to using Go's built-in memory profiler to analyze and improve the parser's performance. All code is provided on GitHub.

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#performance #json #parsing