json_path: Apply JSONPath to a json object

In blmoore/rjsonpath: JSONPath implementation in R

Description

Takes a JSON object as loaded via the read_json function and applies a JSONPath query.

Usage

json_path(json, path, strict = TRUE, zero_index = TRUE, simplify = TRUE)

Arguments

json	a JSON object loaded by read_json
path	a JSONPath expression string, see details
strict	require JSONPath starts with '$.'
zero_index	numeric indices start from 0 rather than 1
simplify	convert simple list results to vectors

Details

JSONPath is an XPath-like language for querying JSON data, see http://goessner.net/articles/JsonPath/ for details.

Value

a list or vector of JSONPath results

Examples

## Not run: 
json <- read_json("bookstore.json")
authors <- json_path(json, "$.store.books[*].author")
# [1] "Nigel Rees"       "Evelyn Waugh"     "Herman Melville"  "J. R. R. Tolkien"

## End(Not run)

blmoore/rjsonpath documentation built on May 21, 2019, 2:21 p.m.