Add function $uuid()

.github/workflows/jsonata.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x, 18.x, 20.x, 22.x]
+        node-version: [20.x, 22.x]
     steps:
       - name: Checkout
         uses: actions/checkout@v3

docs/string-functions.md

@@ -329,3 +329,12 @@ Decodes a Uniform Resource Locator (URL) previously created by encodeUrl.
 __Examples__
 
 - `$decodeUrl("https://mozilla.org/?x=%D1%88%D0%B5%D0%BB%D0%BB%D1%8B")` => `"https://mozilla.org/?x=шеллы"`
+
+## `$uuid()`
+__Signature:__ `$uuid()`
+
+Generates a random universally unique identifer in accordance with the UUIDv4 RFC (https://datatracker.ietf.org/doc/html/rfc9562#name-uuid-version-4)
+
+__Examples__
+
+- `$uuid()` => `"721ae209-7d07-4cda-a1ff-1df536cfc79c"`

package.json

@@ -57,6 +57,6 @@
     "uglify-es": "^3.3.10"
   },
   "engines": {
-    "node": ">= 8"
+    "node": ">= 16"
   }
 }

src/functions.js

@@ -587,6 +587,15 @@ const functions = (() => {
         return atob(str);
     }
 
+    /**
+     * Generate a UUID Version 4 (random)
+     * See https://datatracker.ietf.org/doc/html/rfc9562#name-uuid-version-4
+     * @returns {String} UUIDv4
+     */
+    function uuid() {
+        return crypto.randomUUID();
+    }
+
     /**
      * Encode a string into a component for a url
      * @param {String} str - String to encode
@@ -2064,7 +2073,7 @@ const functions = (() => {
         boolean, not,
         map, zip, filter, single, foldLeft, sift,
         keys, lookup, append, exists, spread, merge, reverse, each, error, assert, type, sort, shuffle, distinct,
-        base64encode, base64decode,  encodeUrlComponent, encodeUrl, decodeUrlComponent, decodeUrl
+        base64encode, base64decode,  encodeUrlComponent, encodeUrl, decodeUrlComponent, decodeUrl, uuid
     };
 })();
 

src/jsonata.js

@@ -1929,6 +1929,7 @@ var jsonata = (function() {
     staticFrame.bind('encodeUrl', defineFunction(fn.encodeUrl, '<s-:s>'));
     staticFrame.bind('decodeUrlComponent', defineFunction(fn.decodeUrlComponent, '<s-:s>'));
     staticFrame.bind('decodeUrl', defineFunction(fn.decodeUrl, '<s-:s>'));
+    staticFrame.bind('uuid', defineFunction(fn.uuid, '<:s>'));
     staticFrame.bind('eval', defineFunction(functionEval, '<sx?:x>'));
     staticFrame.bind('toMillis', defineFunction(datetime.toMillis, '<s-s?:n>'));
     staticFrame.bind('fromMillis', defineFunction(datetime.fromMillis, '<n-s?s?:s>'));

test/test-suite/groups/function-uuid/case000.json

@@ -0,0 +1,6 @@
+{
+    "expr": "$length($uuid())",
+    "data": null,
+    "bindings": {},
+    "result": 36
+}

test/test-suite/groups/function-uuid/case001.json

@@ -0,0 +1,6 @@
+{
+    "expr": "$match($uuid(), /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/).index",
+    "data": null,
+    "bindings": {},
+    "result": 0
+}