Add promo code support to billing API

migrations/20261013000000-create-promo-code-collections.js

@@ -0,0 +1,36 @@
+/**
+ * Create promo code collections and prevent repeated use by a user or workspace.
+ * MongoDB creates the collections when their indexes are created.
+ */
+module.exports = {
+  async up(db) {
+    await db.collection('promoCodes').createIndex({
+      value: 1,
+    }, {
+      name: 'promoCode',
+      unique: true,
+    });
+
+    await db.collection('promoCodeRedemptions').createIndex({
+      promoCodeId: 1,
+      userId: 1,
+    }, {
+      name: 'promoCodeUser',
+      unique: true,
+    });
+
+    await db.collection('promoCodeRedemptions').createIndex({
+      promoCodeId: 1,
+      workspaceId: 1,
+    }, {
+      name: 'promoCodeWorkspace',
+      unique: true,
+    });
+  },
+
+  async down(db) {
+    await db.collection('promoCodeRedemptions').dropIndex('promoCodeWorkspace');
+    await db.collection('promoCodeRedemptions').dropIndex('promoCodeUser');
+    await db.collection('promoCodes').dropIndex('promoCode');
+  },
+};

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hawk.api",
-  "version": "1.5.16",
+  "version": "1.6.0",
   "main": "index.ts",
   "license": "BUSL-1.1",
   "scripts": {