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The ajvr library is a very thin wrapper around the awesome AJV JSON validation library. The essential change between the syntax presented in the official AJV Readme is exchanging JavaScripts dot operator (.) with R’s dollar-sign operator ($).
Note that care must be taken in transforming R objects to JSON, because of R’s everything-is-a-vector philosopy. Hence, for convenience file paths to valid JSON (.json) and YAML (.yml or .yaml) may be used wherever an object is expected.
The fastest validation call:
library('ajv')
var ajv = Ajv() # options can be passed, e.g. list(allErrors= TRUE)
var validate = ajv$compile(schema)
var valid = validate(data)
if (!valid) print(validate$errors)or with less code
# ...
var valid = ajv$validate(schema, data)
if (!valid) print(ajv$errors)
# ...or
# ...
ajv$addSchema(schema, 'mySchema')
var valid = ajv$validate('mySchema', data)
if (!valid) print(ajv$errorsText())
# ...Note that in each of these calls, schema and data arguments may be a valid JSON string, an R object (i.e. list(...)), a connection to a JSON file, or the file name of JSON or YAML file. YAML files are parsed via js-yaml’s safeLoad() method.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.