feat(protocol): add typescript interfaces

dev.yml

@@ -87,12 +87,12 @@ check:
 commands:
   # Repo-wide
   codegen:
-    desc: "Generate UCP models. Usage: dev codegen <kotlin|swift>"
-    syntax: "<kotlin|swift>"
+    desc: "Generate UCP models. Usage: dev codegen <kotlin|swift|typescript>"
+    syntax: "<kotlin|swift|typescript>"
     run: |
       case "$1" in
-        kotlin|swift) ./protocol/scripts/generate_models.sh --lang "$1" ;;
-        *) echo "Usage: dev codegen <kotlin|swift>"; exit 1 ;;
+        kotlin|swift|typescript|ts) ./protocol/scripts/generate_models.sh --lang "$1" ;;
+        *) echo "Usage: dev codegen <kotlin|swift|typescript>"; exit 1 ;;
       esac
   apollo:
     subcommands:

platforms/react-native/modules/@shopify/checkout-kit-react-native/package.json

@@ -52,6 +52,7 @@
     "react-native": "*"
   },
   "devDependencies": {
+    "@shopify/checkout-kit-protocol": "workspace:*",
     "react-native-builder-bob": "^0.23.2",
     "typescript": "^5.9.2"
   },

platforms/react-native/pnpm-workspace.yaml

@@ -1,3 +1,4 @@
 packages:
   - sample
   - 'modules/**/*'
+  - '../../protocol/languages/typescript'

protocol/languages/typescript/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "@shopify/checkout-kit-protocol",
+  "version": "0.0.0",
+  "private": true,
+  "license": "MIT",
+  "description": "Generated TypeScript models for the Shopify Checkout Kit protocol.",
+  "types": "src/index.ts",
+  "scripts": {
+    "codegen": "../../scripts/generate_models.sh --lang typescript",
+    "typecheck": "tsc --noEmit"
+  },
+  "files": [
+    "src"
+  ],
+  "devDependencies": {
+    "typescript": "^5.9.2"
+  }
+}