jsonata_dart
A pure Dart implementation of JSONata - JSON query and transformation language for querying and transforming JSON data.
0.3.3
48K downloads/mo
#1497 most downloaded on pub.dev
secondlayerco/jsonata
What this package is like to depend on
Last release 6 months ago
19 Feb 2026
Too new to tell
only 2 release windows
Nearly every release is documented
notes for 6 of 6 stable releases
Nothing withdrawn
no release was ever pulled
6 months old
6 releases · first in 2026
6 releases in the last 12 months
see the full history below
Release timeline
6 releases · Feb 2026 to Feb 2026Releases
latest 6-
0.3.319 Feb 2026Release notes
Open source →- Bug fix - Fixed
normalizeResultto preserveMap<String, dynamic>typing instead of stripping it toMap<dynamic, dynamic>, which caused cast failures on dart2js (web) platforms - Fixed static analysis lint warnings in datetime functions
- 727 tests passing (672 suite + 55 unit)
- Bug fix - Fixed
-
0.3.203 Feb 2026Release notes
Open source →- Fixed LICENSE file format for proper OSI license recognition
- Fixed static analysis warnings and applied code formatting
-
0.3.103 Feb 2026Release notes
Open source →- Performance optimizations - Significant performance improvements for common query patterns:
- Fast-path for simple name-only path expressions (
a.b.c) - Fast-path for array index access (positive and negative indices)
- Fast-path for paths with simple numeric index filters (
a.b[0].c[0]) - Fast-path for simple equality filter predicates (
arr[field = 'value']) - Fast-path for array projection in path expressions (
arr.fieldName) - Optimized
normalizeResultto avoid deep traversal of raw JSON - Optimized path evaluation for simple left-side patterns
- Fast-path for simple name-only path expressions (
- Bug fix - Fixed array constructor flattening in path expressions (
arr.[field].next)
- Performance optimizations - Significant performance improvements for common query patterns:
-
0.3.003 Feb 2026Release notes
Open source →- Parent operator (
%) - Reference parent objects in path expressions - Sort operator (
^(...)) - Sort arrays by specified keys with ascending/descending support - Focus operator (
@$var) - Bind current item to a variable while keeping navigation context at parent level - Index bind operator (
#$var) - Bind iteration index to a variable - Fixed contiguous focus steps handling per JSONata specification
- Fixed
$keysto unwrap single-element arrays - 726 tests passing (672 suite + 54 unit)
- Parent operator (
-
0.2.002 Feb 2026Release notes
Open source →- Date/time functions:
$now([picture [, timezone]])- Returns current timestamp in ISO 8601 format or formatted with picture string$millis()- Returns current timestamp as milliseconds since Unix epoch$fromMillis(number [, picture [, timezone]])- Convert milliseconds to formatted string$toMillis(timestamp [, picture])- Parse timestamp string to milliseconds- Full XPath/XQuery picture string support for date/time formatting and parsing
- All component specifiers: Y, M, D, d, F, W, w, X, x, H, h, P, m, s, f, Z, z
- Presentation modifiers: numeric, name, ordinal, roman, words
- Regular expression functions:
$match(string, regex [, limit])- Find regex matches with match objects$replace(string, regex, replacement)- Replace with regex, capture groups, or lambda functions$contains(string, regex)- Test if string matches regex$split(string, regex [, limit])- Split string by regex pattern- Partial application support with
?placeholder
- Transform operator (
~>) - Function chaining with left-associativity - Bug fixes:
- Fixed
~>operator to be left-associative (soa ~> b ~> c=(a ~> b) ~> c)
- Fixed
- Error handling improvements:
- D3132: Unknown component specifier in date/time picture
- D3133: Unsupported name format for component
- D3136: Underspecified date/time (gaps or unsupported formats)
- 661 tests passing (607 suite + 54 unit)
- Date/time functions:
-
0.1.002 Feb 2026Release notes
Open source →- Initial release
- Core JSONata language features:
- Path expressions (
a.b.c,a[0],a.b[c > 0]) - Wildcards (
*,**) - Array/object constructors
- Arithmetic, comparison, and boolean operators
- Conditional expressions (
a ? b : c) - Variable binding (
$x := value) - Lambda expressions (
function($x) { $x * 2 }) - Object grouping operator (
items{category: $sum(price)}) - Range operator (
[1..10])
- Path expressions (
- Built-in functions:
- String:
$string,$length,$substring,$uppercase,$lowercase,$trim,$pad,$split,$join,$contains,$replace - Numeric:
$number,$abs,$floor,$ceil,$round,$power,$sqrt,$random,$sum,$max,$min,$average,$formatNumber,$formatBase,$formatInteger,$parseInteger - Array:
$count,$append,$sort,$reverse,$shuffle,$distinct,$zip,$flatten - Object:
$keys,$values,$spread,$merge,$lookup,$each - Boolean:
$boolean,$not,$exists - Type:
$type - Higher-order:
$map,$filter,$reduce,$single
- String:
- Custom function registration
- Variable binding
- JSONata-compatible error codes