jsonexpr

Documentation

Overview

Package jsonexpr provides JSON extractor expression parser.

Index

• Constants
• func Extract(d *jx.Decoder, paths map[logql.Label]Path, extract func(logql.Label, string)) error
• type Path
  • func Parse(input string) (sel Path, _ error)
  • func (p Path) Equal(other Path) bool
• type Selector
  • func IndexSel(i int) Selector
  • func KeySel(k string) Selector
• type SelectorType

Constants

const (
	Index = iota + 1
	Key
)

Functions

func Extract

func Extract(
	d *jx.Decoder,
	paths map[logql.Label]Path,
	extract func(logql.Label, string),
) error

Extract extracts values from given paths using extract callback.

Types

type Path

type Path []Selector

Path is a list of selectors.

func Parse

func Parse(input string) (sel Path, _ error)

Parse parses selector expression.

func (Path) Equal

func (p Path) Equal(other Path) bool

Equal compares p to other.

type Selector

type Selector struct {
	Type  SelectorType
	Index int
	Key   string
}

Selector is a JSON field/element selector.

func IndexSel

func IndexSel(i int) Selector

IndexSel creates new index Selector.

func KeySel

func KeySel(k string) Selector

KeySel creates new key Selector.

type SelectorType

type SelectorType int

SelectorType is a Selector type.