Validate JSON Against JSON Schemas

The current implementation uses the C++ library 'RapidJSON' to supply the schema functionality, it supports JSON Schema Draft v4. As of 2016-09-09, 'RapidJSON' passed 262 out of 263 tests in JSON Schema Test Suite (JSON Schema draft 4).


An R package for validation of JSON against JSON Schema. There are functions for using JSON file with JSON Schema file, a JSON string with a JSON Schema file and vice-versa, and finally a JSON string with a JSON Schema.

validatejsonr is based on the C++ library RapidJSON (https://github.com/miloyip/rapidjson), which currently supports JSON Schema Draft version 4. RapidJSON pass 262 out of 263 tests in JSON Schema Test Suite (Json Schema draft 4).

Validate a valid JSON file w.r.t Schema

library(validatejsonr)
  > schemafile <- "inst/extdata/schema.json"
  > validate_result <- validate_jsonfile_with_schemafile(validjson, schemafile)
 
  > validate_result$value
  [1] 0
  # 0 => success
  
  > validate_result$message
  [1] "JSON file is valid with respect to Schema"
  
  > validate_result$schema
  [1] "inst/extdata/schema.json"
  
  > validate_result$jsonfile
  [1] "inst/extdata/item-3.json"

Validate a non-well formed JSON file w.r.t Schema

library(validatejsonr)
 
  > validjson <- "inst/extdata/item-1.json"
  > schemafile <- "inst/extdata/schema.json"
  > validate_result <- validate_jsonfile_with_schemafile(validjson, schemafile)
 
  > validate_result$value
  [1] 100
  # 1XX => non-well formed JSON (syntactically incorrect)
  
  > validate_result$message
  [1] "JSON Input is not well-formed JSON. Error(offset 14): Invalid value."
  
  > validate_result$schema
  [1] "inst/extdata/schema.json"
  
  > validate_result$jsonfile
  [1] "inst/extdata/item-1.json"

Validate an in-valid JSON file w.r.t Schema

library(validatejsonr)
 
  > validjson <- "inst/extdata/item-1.json"
  > schemafile <- "inst/extdata/schema.json"
  > validate_result <- validate_jsonfile_with_schemafile(validjson, schemafile)
 
  > validate_result$value
  [1] 200
  # 2XX => invalid JSON with respect to Schema
  
  > validate_result$message
  [1] "Invalid schema point: #Invalid keyword: required Invalid document point: #"
  
  > validate_result$schema
  [1] "inst/extdata/schema.json"
  
  > validate_result$jsonfile
  [1] "inst/extdata/item-2.json"

validatejsonr

Copyright (c) 2016, Leif Jonsson

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Copyright (c) 2006-2013 Alexander Chemeris All rights reserved.

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Reference manual

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install.packages("validatejsonr")

1.0.4 by Leif Jonsson, 5 months ago


Browse source code at https://github.com/cran/validatejsonr


Authors: Leif Jonsson [aut, cre], Milo Yip [aut], Tencent [cph], THL A29 Limited [cph], Alexander Chemeris [aut]


Documentation:   PDF Manual  


BSD_2_clause + file LICENSE license


Imports Rcpp

Suggests knitr, rmarkdown, testthat

Linking to Rcpp

System requirements: GNU make


See at CRAN