NAME
Mojo::JSON - Minimalistic JSON
SYNOPSIS
my
$bytes
= encode_json {
foo
=> [1, 2],
bar
=>
'hello!'
,
baz
=> \1};
my
$hash
= decode_json
$bytes
;
DESCRIPTION
Mojo::JSON is a minimalistic and possibly the fastest pure-Perl implementation of RFC 8259.
It supports normal Perl data types like scalar, array reference, hash reference and will try to call the TO_JSON
method on blessed references, or stringify them if it doesn't exist. Differentiating between strings and numbers in Perl is hard, depending on how it has been used, a scalar can be both at the same time. The string value has a higher precedence unless both representations are equivalent.
[1, -2, 3] -> [1, -2, 3]
{
"foo"
:
"bar"
} -> {
foo
=>
'bar'
}
Literal names will be translated to and from Mojo::JSON constants or a similar native Perl value.
true -> Mojo::JSON->true
false -> Mojo::JSON->false
null ->
undef
In addition scalar references will be used to generate booleans, based on if their values are true or false.
\1 -> true
\0 -> false
The character /
will always be escaped to prevent XSS attacks.
"</script>"
->
"<\/script>"
For better performance the optional module Cpanel::JSON::XS (4.09+) will be used automatically if possible. This can also be disabled with the MOJO_NO_JSON_XS
environment variable.
FUNCTIONS
Mojo::JSON implements the following functions, which can be imported individually.
decode_json
my
$value
= decode_json
$bytes
;
Decode JSON to Perl value and die if decoding fails.
encode_json
my
$bytes
= encode_json {
i
=>
'♥ mojolicious'
};
Encode Perl value to JSON.
false
my
$false
= false;
False value, used because Perl has no native equivalent.
from_json
my
$value
= from_json
$chars
;
Decode JSON text that is not UTF-8
encoded to Perl value and die if decoding fails.
j
my
$bytes
= j [1, 2, 3];
my
$bytes
= j {
i
=>
'♥ mojolicious'
};
my
$value
= j
$bytes
;
Encode Perl data structure (which may only be an array reference or hash reference) or decode JSON, an undef
return value indicates a bare null
or that decoding failed.
to_json
my
$chars
= to_json {
i
=>
'♥ mojolicious'
};
Encode Perl value to JSON text without UTF-8
encoding it.
true
my
$true
= true;
True value, used because Perl has no native equivalent.