Provided by: libjson-schema-modern-perl_0.611-1_all 
NAME
JSON::Schema::Modern::Result - Contains the result of a JSON Schema evaluation
VERSION
version 0.611
SYNOPSIS
use JSON::Schema::Modern;
my $js = JSON::Schema::Modern->new;
my $result = $js->evaluate($data, $schema);
my @errors = $result->errors;
my $result_data_encoded = encode_json($result); # calls TO_JSON
# use in numeric and boolean context
say sprintf('got %d %ss', $result, ($result ? 'annotation' : 'error'));
# use in string context
say 'full results: ', $result;
# combine two results into one:
my $overall_result = $result1 & $result2;
DESCRIPTION
This object holds the complete results of evaluating a data payload against a JSON Schema using
JSON::Schema::Modern.
OVERLOADS
The object contains a string overload, which evaluates to a potentially multi-line string summarizing the
errors within (if any); this is intended to be used as a user-oriented error message that references data
locations, but not schema locations.
The object also contains a bitwise AND overload ("&"), for combining two results into one (the result is
valid iff both inputs are valid; annotations and errors from the second argument are appended to those of
the first in a new Result object).
ATTRIBUTES
valid
A boolean. Indicates whether validation was successful or failed.
errors
Returns an array of JSON::Schema::Modern::Error objects.
annotations
Returns an array of JSON::Schema::Modern::Annotation objects.
output_format
One of: "flag", "basic", "strict_basic", "terse", "data_only". Defaults to "basic".
• "flag" returns just the result of the evaluation: either "{"valid": true}" or "{"valid": false}".
• "basic" adds the list of "errors" or "annotations" to the boolean evaluation result.
"instance_location" and "keyword_location" are always included, as JSON pointers, describing the path
to the evaluation location; "absolute_keyword_location" is added (as a resolved URI) whenever it is
known and different from "keyword_location".
• "strict_basic" is like "basic" but follows the draft-2019-09 specification precisely, including
replicating an error fixed in the next draft, in that "instance_location" and "keyword_location"
values are provided as fragment-only URI references rather than JSON pointers.
• "terse" is not described in any specification; it is like "basic", but omits some redundant errors
(for example the one for the "allOf" keyword that is added when any of the subschemas under "allOf"
failed evaluation).
• "data_only" returns a string, not a data structure: it contains a list of errors identified only by
their "instance_location" and error message (or "keyword_location", when the error occurred while
loading the schema itself). This format is suitable for generating errors when the schema is not
published, or for describing errors with the schema itself. This is not an official specification
format and may change slightly over time, as it is tested in production environments.
formatted_annotations
A boolean flag indicating whether "format" should include annotations in the output. Defaults to true.
exception
Indicates that evaluation stopped due to a severe error.
recommended_response
A tuple, consisting of "[ integer, string ]", indicating the recommended HTTP response code and string to
use for this result (if validating an HTTP request). This could exist for things like a failed
authentication check in OpenAPI validation, in which case it would contain "[ 401, 'Unauthorized' ]".
Only populated when there are errors; when not explicitly set by an evaluator, defaults to "[ 500,
'Internal Server Error' ]" if any errors indicate an exception, and "[ 400, <first error string> ]"
otherwise. The exact error string is hidden in the case of 500 errors because you should not leak
internal issues with your application, but you may also wish to obfuscate normal validation errors, in
which case you should check for 400 and change the string to 'Bad Request'.
METHODS
format
Returns a data structure suitable for serialization; requires one argument specifying the output format
to use, which corresponds to the formats documented in
<https://json-schema.org/draft/2019-09/json-schema-core.html#rfc.section.10.4>. The only supported
formats at this time are "flag", "basic", "strict_basic", and "terse".
TO_JSON
Calls "format" with the style configured in "output_format".
count
Returns the number of annotations when the result is true, or the number of errors when the result is
false.
combine
When provided with another result object, returns a new object with the combination of all results. See
"&" at "OVERLOADS".
dump
Returns a JSON string representing the result object, using the requested "format", according to the
draft2019-09 specification <https://json-schema.org/draft/2019-09/json-schema-core.html#rfc.section.10>
and the draft2020-12 specification <https://json-schema.org/draft/2020-12/json-schema-core#section-12>.
SERIALIZATION
Results (and their contained errors and annotations) can be serialized in a number of ways.
Results have defined "output_format"s, which can be generated as nested unblessed hashes/arrays and are
suitable for serializing using a JSON encoder for use in another application. A JSON string of the result
can be obtained directly using "dump".
If it is preferable to omit direct references to the schema (for example in an application where the
schema is not published), but still convey some semantic information about the nature of the errors,
stringify the object directly. This also means that result objects can be thrown as exceptions, or
embedded in error messages.
If you are embedding the full result inside another data structure, perhaps to be serialized to JSON (or
another format) later on, use "TO_JSON" or "format".
SUPPORT
Bugs may be submitted through <https://github.com/karenetheridge/JSON-Schema-Modern/issues>.
I am also usually active on irc, as 'ether' at "irc.perl.org" and "irc.libera.chat".
You can also find me on the JSON Schema Slack server <https://json-schema.slack.com> and OpenAPI Slack
server <https://open-api.slack.com>, which are also great resources for finding help.
AUTHOR
Karen Etheridge <ether@cpan.org>
COPYRIGHT AND LICENCE
This software is copyright (c) 2020 by Karen Etheridge.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5
programming language system itself.
Some schema files have their own licence, in share/LICENSE.
perl v5.40.1 2025-05-31 JSON::Schema::Modern::Result(3pm)