Add TigerBeetle Schema Wizard

Author: emschwartz

projects/tigerbeetle-schema-wizard/.gitignore

@@ -0,0 +1,2 @@
+node_modules
+dist

projects/tigerbeetle-schema-wizard/README.md

@@ -0,0 +1,22 @@
+<img src="https://github.com/emschwartz/tigerbeetle-schema-wizard/assets/3262610/046153f4-4657-4109-89b0-cb990b790621" width=200 />
+
+# TigerBeetle Schema Wizard
+
+When using TigerBeetle, you need to model your use case in terms of [ledgers](https://docs.tigerbeetle.com/reference/accounts#ledger), [codes](https://docs.tigerbeetle.com/reference/accounts#code), [accounts](https://docs.tigerbeetle.com/reference/accounts), and [transfers](https://docs.tigerbeetle.com/reference/transfers). That means developers need to first wrap their heads around double-entry bookkeeping in order to take advantage of the power of TigerBeetle.
+
+This project aims to simplify the usage of TigerBeetle by allowing you to define the schema of your business logic in a simple TOML format. It then generates client code in any of the supported languages to make building systems on top of TigerBeetle easy and error-free.
+
+## Contents
+
+- [Schema](./schema.toml)
+- [Generated TypeScript client code\*](./src/generated.ts)
+- [Example usage script](./src/index.ts)
+
+\* Note: the client code is not currently being generated 😋
+
+## Trying it out
+
+1. [Run TigerBeetle on your local machine](https://docs.tigerbeetle.com/quick-start/single-binary)
+2. Clone this repo
+3. `npm install`
+4. Run `npm run dev` to create two accounts, fund them, and send a transfer between them

projects/tigerbeetle-schema-wizard/package-lock.json

@@ -0,0 +1,24 @@
+{
+  "name": "tigerbeetle-schema-wizard",
+  "version": "1.0.0",
+  "description": "",
+  "main": "dist/index.js",
+  "type": "module",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "build": "tsc",
+    "dev": "ts-node ."
+  },
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "@types/node": "^20.9.0",
+    "ts-node": "^10.9.1",
+    "type-fest": "^4.6.0",
+    "typescript": "^5.2.2"
+  },
+  "dependencies": {
+    "tigerbeetle-node": "^0.14.160",
+    "uuidv7": "^0.6.3"
+  }
+}

projects/tigerbeetle-schema-wizard/package.json

@@ -0,0 +1,11 @@
+# This is a simple schema that the TigerBeetle Schema Wizard
+# can use to generate client code to interact with TigerBeetle
+
+[ledgers]
+
+[ledgers.eur]
+type = "simple_bank_accounts"
+
+[ledgers.usd]
+type = "simple_bank_accounts"
+allow_negative = false        # change this and you're going to jail!