14 - Generate SQL Migration Files from Drizzle Kit

Author: codingforentrepreneurs

drizzle.config.js

@@ -0,0 +1,6 @@
+const config = {
+    schema: './src/db/schemas.js',
+    out: './src/migrations'
+}
+
+export default config

package.json

@@ -6,7 +6,8 @@
     "dev": "serverless offline --stage dev",
     "info": "serverless info --stage prod --region us-east-2",
     "deploy": "serverless deploy --stage prod --region us-east-2",
-    "remove": "serverless remove --stage prod --region us-east-2"
+    "remove": "serverless remove --stage prod --region us-east-2",
+    "generate": "drizzle-kit generate:pg --config=drizzle.config.js"
   },
   "dependencies": {
     "@aws-sdk/client-ssm": "^3.499.0",

src/db/schemas.js

@@ -4,7 +4,7 @@ const { text, timestamp, pgTable } = require("drizzle-orm/pg-core");
 const LeadTable = pgTable('leads', {
   id: serial('id').primaryKey().notNull(),
   email: text('email').notNull(),
-  description: text('description').default('This is my comment'),
+  // description: text('description').default('This is my comment'),
   createdAt: timestamp('created_at').defaultNow(),
 });
 

src/migrations/0000_common_wolfpack.sql

@@ -0,0 +1,5 @@
+CREATE TABLE IF NOT EXISTS "leads" (
+	"id" serial PRIMARY KEY NOT NULL,
+	"email" text NOT NULL,
+	"created_at" timestamp DEFAULT now()
+);

src/migrations/meta/0000_snapshot.json

@@ -0,0 +1,44 @@
+{
+  "id": "eec47f4c-84dc-47a7-883a-ae05d7ac5e1b",
+  "prevId": "00000000-0000-0000-0000-000000000000",
+  "version": "5",
+  "dialect": "pg",
+  "tables": {
+    "leads": {
+      "name": "leads",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "serial",
+          "primaryKey": true,
+          "notNull": true
+        },
+        "email": {
+          "name": "email",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false,
+          "default": "now()"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {}
+    }
+  },
+  "enums": {},
+  "schemas": {},
+  "_meta": {
+    "columns": {},
+    "schemas": {},
+    "tables": {}
+  }
+}

src/migrations/meta/_journal.json

@@ -0,0 +1,13 @@
+{
+  "version": "5",
+  "dialect": "pg",
+  "entries": [
+    {
+      "idx": 0,
+      "version": "5",
+      "when": 1706213535629,
+      "tag": "0000_common_wolfpack",
+      "breakpoints": true
+    }
+  ]
+}