Start Umbau zu postgres

bizmatch-server/src/drizzle/drizzle.module.ts

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+import { Module } from '@nestjs/common';
+import { drizzle } from 'drizzle-orm/node-postgres';
+import pkg from 'pg';
+const { Pool } = pkg;
+import * as schema from './businesses_json.model.js';
+import { ConfigService } from '@nestjs/config';
+import { jsonb, varchar } from 'drizzle-orm/pg-core';
+import { PG_CONNECTION } from './schema.js';
+@Module({
+  providers: [
+    {
+      provide: PG_CONNECTION,
+      inject: [ConfigService],
+      useFactory: async (configService: ConfigService) => {
+        const connectionString = configService.get<string>('DATABASE_URL');
+        const pool = new Pool({
+          connectionString,
+          // ssl: true,
+        });
+
+        return drizzle(pool, { schema });
+      },
+    },
+  ],
+  exports: [PG_CONNECTION],
+})
+export class DrizzleModule {}