add an example of how to configure transaction properties

Author: luffy1727

modules/ROOT/pages/driver-configuration.adoc

@@ -143,6 +143,44 @@ await startStandaloneServer(server, {
 
 ----
 
+==== Transaction configuration in context
+
+[source, javascript, indent=0]
+----
+import { ApolloServer } from "@apollo/server";
+import { startStandaloneServer } from "@apollo/server/standalone";
+import { Neo4jGraphQL } from "@neo4j/graphql";
+import neo4j from "neo4j-driver";
+
+const typeDefs = `#graphql
+    type User @node {
+        name: String
+    }
+`;
+
+const driver = neo4j.driver(
+    "bolt://localhost:7687",
+    neo4j.auth.basic("username", "password")
+);
+const session = driver.session();
+const transactionConfig = {
+    timeout: 60 * 1000,
+    metadata: {
+        "my-very-own-metadata": "is very good!"
+    }
+};
+
+const neoSchema = new Neo4jGraphQL({ typeDefs, driver });
+
+const server = new ApolloServer({
+    schema: await neoSchema.getSchema(),
+});
+
+await startStandaloneServer(server, {
+    context: async ({ req }) => ({ req, transaction: transactionConfig }),
+});
+----
+
 [[driver-configuration-database-compatibility]]
 == Database compatibility