inst/doc/jsonvalidate.R

In jsonvalidate: Validate 'JSON' Schema

## ----echo = FALSE, results = "hide"-------------------------------------------
knitr::opts_chunk$set(error = FALSE)

## -----------------------------------------------------------------------------
schema <- '{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "Product",
    "description": "A product from Acme\'s catalog",
    "type": "object",
    "properties": {
        "id": {
            "description": "The unique identifier for a product",
            "type": "integer"
        },
        "name": {
            "description": "Name of the product",
            "type": "string"
        },
        "price": {
            "type": "number",
            "minimum": 0,
            "exclusiveMinimum": true
        },
        "tags": {
            "type": "array",
            "items": {
                "type": "string"
            },
            "minItems": 1,
            "uniqueItems": true
        }
    },
    "required": ["id", "name", "price"]
}'

## -----------------------------------------------------------------------------
v <- jsonvalidate::json_validator(schema)

## -----------------------------------------------------------------------------
path <- tempfile()
writeLines(schema, path)
v <- jsonvalidate::json_validator(path)

## ----include = FALSE----------------------------------------------------------
file.remove(path)

## -----------------------------------------------------------------------------
v("{}")

## -----------------------------------------------------------------------------
v("{}", verbose = TRUE)

## ----error = TRUE-------------------------------------------------------------
v("{}", error = TRUE)

## -----------------------------------------------------------------------------
v("{}", verbose = TRUE, greedy = TRUE)

## -----------------------------------------------------------------------------
v('{
    "id": 1,
    "name": "A green door",
    "price": 12.50,
    "tags": ["home", "green"]
}')

## -----------------------------------------------------------------------------
v('{
    "id": 1,
    "name": "A green door",
    "price": -1,
    "tags": ["home", "green"]
}', verbose = TRUE)

## -----------------------------------------------------------------------------
v('{
    "id": 1,
    "name": "A green door",
    "price": 12.50,
    "tags": ["home", "home"]
}', verbose = TRUE)

## -----------------------------------------------------------------------------
v('{
    "id": "identifier",
    "name": 1,
    "price": -1,
    "tags": ["home", "home", 1]
}', verbose = TRUE)

## -----------------------------------------------------------------------------
json <- '{
    "id": 1,
    "name": "A green door",
    "price": 12.50,
    "tags": ["home", "green"]
}'
jsonvalidate::json_validate(json, schema)