Updated the example. Added uuid.

beau.yml

@@ -1,12 +1,23 @@
-endpoint: https://webhook.site/
+endpoint: https://httpbin.org/
 
 plugins:
   - std:
       date:
         format: 'YYYY-MM-DD'
 
-POST /8806bba7-d947-47bf-9445-cccc73e92bb8:
+POST /anything:
-  alias: test
+  alias: date
   payload:
     today: $[now(`YYYY`)]
     someDay: $[date(2018, 5, 17)]
+
+POST /anything?1:
+  alias: uuid
+  payload:
+    uuid: $[uuid()]
+
+POST /anything?2:
+  alias: upload
+  formdata:
+    file: $[createReadStream('./LICENSE')]
+  

lib/index.js

@@ -1,13 +1,14 @@
 const date = require('./plugins/date');
-const fileSystem = require('./plugins/fileSystem.js');
+const fileSystem = require('./plugins/fileSystem');
+const uuid = require('./plugins/uuid');
 
 class STD {
-	constructor(
+    constructor(registry, settings) {
-		registry,
+        const defaults = { date: { format: 'YYYY-MM-DDTHH:mm:ss.SSSZ' } };
-		settings = { date: { format: 'YYYY-MM-DDTHH:mm:ss.SSSZ' } }
+        settings = Object.assign({}, defaults, settings);
-	) {
+
-		[date, fileSystem].forEach(plugin => plugin(registry, settings));
+        [date, fileSystem, uuid].forEach(plugin => plugin(registry, settings));
-	}
+    }
 }
 
 module.exports = STD;

lib/plugins/date.js

@@ -1,13 +1,13 @@
 const format = require('date-fns/format');
 
 module.exports = (registry, settings) => {
-	registry.defineDynamicValue('now', (fmt = settings.date.format) =>
+    registry.defineDynamicValue('now', (fmt = settings.date.format) =>
-		format(Date.now(), fmt)
+        format(Date.now(), fmt)
-	);
+    );
 
-	registry.defineDynamicValue(
+    registry.defineDynamicValue(
-		'date',
+        'date',
-		(year, month, day, fmt = settings.date.format) =>
+        (year, month, day, fmt = settings.date.format) =>
-			format(new Date(year, month - 1, day), fmt)
+            format(new Date(year, month - 1, day), fmt)
-	);
+    );
 };

lib/plugins/uuid.js

@@ -0,0 +1,3 @@
+const uuid = require('uuid/v4');
+
+module.exports = registry => registry.defineDynamicValue('uuid', uuid);

package-lock.json

@@ -8,6 +8,11 @@
       "version": "1.29.0",
       "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-1.29.0.tgz",
       "integrity": "sha512-lbTXWZ6M20cWH8N9S6afb0SBm6tMk+uUg6z3MqHPKE9atmsY3kJkTm8vKe93izJ2B2+q5MV990sM2CHgtAZaOw=="
+    },
+    "uuid": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.2.1.tgz",
+      "integrity": "sha512-jZnMwlb9Iku/O3smGWvZhauCf6cvvpKi4BKRiliS3cxnI+Gz9j5MEpTz2UFuXiKPJocb7gnsLHwiS05ige5BEA=="
     }
   }
 }

package.json

@@ -18,7 +18,8 @@
     },
     "homepage": "https://github.com/seich/beau-std#readme",
     "dependencies": {
-        "date-fns": "^1.29.0"
+        "date-fns": "^1.29.0",
+        "uuid": "^3.2.1"
     },
     "devDependencies": {}
 }