NAME

Mojo::JSON::Pointer - JSON Pointers

SYNOPSIS

  use Mojo::JSON::Pointer;

  my $pointer = Mojo::JSON::Pointer->new({foo => [23, 'bar']});
  say $pointer->get('/foo/1');
  say 'Contains "/foo".' if $pointer->contains('/foo');

DESCRIPTION

Mojo::JSON::Pointer is a relaxed implementation of RFC 6901.

ATTRIBUTES

Mojo::JSON::Pointer implements the following attributes.

data

  my $data = $pointer->data;
  $pointer = $pointer->data({foo => 'bar'});

Data to be processed.

METHODS

Mojo::JSON::Pointer inherits all methods from Mojo::Base and implements the following new ones.

contains

  my $bool = $pointer->contains('/foo/1');
  my $bool = $pointer->contains($data, '/foo/1');

Check if data structure contains a value that can be identified with the given JSON Pointer, defaults to using "data".

  # True
  $pointer->contains({'♥' => 'mojolicious'}, '/♥');
  $pointer->contains({foo => 'bar', baz => [4, 5, 6]}, '/foo');
  $pointer->contains({foo => 'bar', baz => [4, 5, 6]}, '/baz/2');

  # False
  $pointer->contains({'♥' => 'mojolicious'}, '/☃');
  $pointer->contains({foo => 'bar', baz => [4, 5, 6]}, '/bar');
  $pointer->contains({foo => 'bar', baz => [4, 5, 6]}, '/baz/9');

get

  my $value = $pointer->get('/foo/bar');
  my $value = $pointer->get($data, '/foo/bar');

Extract value identified by the given JSON Pointer, defaults to using "data".

  # "mojolicious"
  $pointer->get({'♥' => 'mojolicious'}, '/♥');

  # "bar"
  $pointer->get({foo => 'bar', baz => [4, 5, 6]}, '/foo');

  # "4"
  $pointer->get({foo => 'bar', baz => [4, 5, 6]}, '/baz/0');

  # "6"
  $pointer->get({foo => 'bar', baz => [4, 5, 6]}, '/baz/2');

new

  my $pointer = Mojo::JSON::Pointer->new;
  my $pointer = Mojo::JSON::Pointer->new({foo => 'bar'});

Build new Mojo::JSON::Pointer object.

SEE ALSO

Mojolicious, Mojolicious::Guides, http://mojolicio.us.