add prisma config updates

Author: nikolasburk

content/200-orm/500-reference/325-prisma-config-reference.mdx

@@ -67,10 +67,10 @@ export declare type PrismaConfig = {
   // The path to the schema file, or path to a folder that shall be recursively searched for *.prisma files.
   schema?: string;
 
-  // The Driver Adapter used for Prisma CLI.
+  // Configuration for the driver adapter used for Prisma CLI.
   adapter?: () => Promise<SqlMigrationAwareDriverAdapterFactory>;
 
-  // The configuration for Prisma Studio.
+  // Configuration for Prisma Studio.
   studio?: {
     adapter: () => Promise<SqlMigrationAwareDriverAdapterFactory>;
   };
@@ -91,6 +91,15 @@ export declare type PrismaConfig = {
   typedSql?: {
     path: string;
   };
+
+  // Configuration to specify how the CLI should connect to the DB.
+  engine: "classic" | "js";
+
+  // Configuration of your database connection details.
+  datasource: {
+    url: string;
+    shadowDatabaseUrl?: string;
+  };
 };
 ```
 
@@ -331,6 +340,28 @@ Failed to load config file "~" as a TypeScript/JavaScript module. Error: Error:
 
 :::
 
+### `engine`
+
+Determines whether you want to configure the database connection details via the `datasource` or an `adapter`.
+
+| Property | Type                | Required | Default |
+| -------- | ------------------- | -------- | ------- |
+| `engine` | `"classic" \| "js"` | No       | none    |
+
+Note that:
+
+- if you're using `"classic"`, you must specify a `datasource` objedct with a `url`
+- if you're using `"js"`, you must provide an `adapter` function
+
+### `datasource`
+
+Defines the database connection details. Only valid when `engine` is set to `"classic"`.
+
+| Property                       | Type     | Required | Default |
+| ------------------------------ | -------- | -------- | ------- |
+| `datasource.url`               | `string` | Yes      | none    |
+| `datasource.shadowDatabaseUrl` | `string` | No       | none    |
+
 ## Common patterns
 
 ### Setting up your project