jsonpath

Minimalistic implementation of jsonpath, based on http://goessner.net/articles/JsonPath/.

But a better grammar definition is here.

Documentation

https://godoc.org/github.com/gobs/jsonpath

Usage

Install:

go get github.com/gobs/jsonpath

And use it as a library:

package main

import "github.com/gobs/jsonpath"
import "fmt"

func main() {
    jsonpathexpr := "$.items[3].stuff"

    p := jsonpath.NewProcessor()
    if !p.Parse(jsonpathexpr) {
        return
    }

    // loaded from JSON
    input := map[string]interface{}{
        "name": "joe",
        "items": []interface{}{
            "zero",
            "one",
            "two",
            map[string]interface{}{
                "stuff": "three",
            },
        },
    }

    ret := p.Process(input, jsonpath.Default)
    fmt.Println(ret)
}

Or install the command:

go get github.com/gobs/jsonpath/cmd/jsonpath

And run it:

jsonpath "$.items[3].stuff" input.json