Struct jsonschema::output::Output

pub struct Output<'a, 'b> { /* private fields */ }

The output format resulting from the application of a schema. This can be converted into various representations based on the definitions in https://json-schema.org/draft/2020-12/json-schema-core.html#rfc.section.12.2

Currently only the “flag” and “basic” output formats are supported

Implementations

impl<'a, 'b> Output<'a, 'b>

pub fn flag(&self) -> bool

Indicates whether the schema was valid, corresponds to the “flag” output format

pub fn basic(&self) -> BasicOutput<'a>

Output a list of errors and annotations for each element in the schema according to the basic output format. BasicOutput implements serde::Serialize in a manner which conforms to the json core spec so one way to use this is to serialize the BasicOutput and examine the JSON which is produced. However, for rust programs this is not necessary. Instead you can match on the BasicOutput and examine the results. To use this API you’ll need to understand a few things:

Regardless of whether the the schema validation was successful or not the BasicOutput is a sequence of OutputUnits. An OutputUnit is some metadata about where the output is coming from (where in the schema and where in the instance). The difference between the BasicOutput::Valid and BasicOutput::Invalid cases is the value which is associated with each OutputUnit. For Valid outputs the value is an annotation, whilst for Invalid outputs it’s an ErrorDescription (a String really).

Examples

let output: BasicOutput = schema.apply(&instance).basic();
match output {
    BasicOutput::Valid(annotations) => {
        for annotation in annotations {
            println!(
                "Value: {} at path {}",
                annotation.value(),
                annotation.instance_location()
            )
        }
    },
    BasicOutput::Invalid(errors) => {
        for error in errors {
            println!(
                "Error: {} at path {}",
                error.error_description(),
                error.instance_location()
            )
        }
    }
}

Trait Implementations

impl<'a, 'b> Clone for Output<'a, 'b>

fn clone(&self) -> Output<'a, 'b>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, 'b> Debug for Output<'a, 'b>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.