Add ERD

README.md

@@ -0,0 +1 @@
+[ERD](./prisma/README.md)

package.json

@@ -38,6 +38,7 @@
     "nodemon": "^3.0.1",
     "prettier": "3.0.3",
     "prisma": "^5.3.1",
+    "prisma-markdown": "^1.0.0",
     "typescript": "^5.2.2"
   }
 }

prisma/README.md

@@ -0,0 +1,60 @@
+# Messenger
+
+> Generated by [`prisma-markdown`](https://github.com/samchon/prisma-markdown)
+
+- [default](#default)
+
+## default
+
+```mermaid
+erDiagram
+User {
+    Int id PK
+    String username UK
+    String email UK
+    String password
+    DateTime createdAt
+}
+Message {
+    Int id PK
+    String content
+    Int senderId FK
+    Int chatId FK
+    DateTime createdAt
+}
+Chat {
+    Int id PK
+    String name "nullable"
+    DateTime createdAt
+}
+Message }|--|| User : sender
+Message }|--|| Chat : chat
+```
+
+### `User`
+
+**Properties**
+
+- `id`:
+- `username`:
+- `email`:
+- `password`:
+- `createdAt`:
+
+### `Message`
+
+**Properties**
+
+- `id`:
+- `content`:
+- `senderId`:
+- `chatId`:
+- `createdAt`:
+
+### `Chat`
+
+**Properties**
+
+- `id`:
+- `name`:
+- `createdAt`:

prisma/schema.prisma

@@ -34,3 +34,9 @@ model Chat {
   messages  Message[]
   createdAt DateTime  @default(now())
 }
+
+generator markdown {
+  provider = "prisma-markdown"
+  output   = "./README.md"
+  title    = "Messenger"
+}