Defer

.alexrc

@@ -1,18 +1,19 @@
 {
-  "allow": [
-    "black",
-    "hook",
-    "hooks",
-    "failure",
-    "period",
-    "execute",
-    "executed",
-    "executes",
-    "execution",
-    "reject",
-    "special",
-    "primitive",
-    "invalid",
-    "failed"
-  ]
+	"allow": [
+		"black",
+		"hook",
+		"hooks",
+		"failure",
+		"period",
+		"execute",
+		"executed",
+		"executes",
+		"execution",
+		"reject",
+		"special",
+		"primitive",
+		"invalid",
+		"failed",
+		"crash"
+	]
 }

.github/workflows/e2e-tests.yml

@@ -0,0 +1,43 @@
+name: 🎭 E2E Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+    paths:
+      - "e2e/**"
+      - ".github/workflows/e2e-tests.yml"
+
+jobs:
+  e2e-tests:
+    name: 🎭 Run E2E Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
+      - name: Install dependencies
+        run: |
+          cd e2e
+          bun install
+
+      - name: Install Playwright browsers
+        run: |
+          cd e2e
+          bunx playwright install --with-deps
+
+      - name: Run Playwright tests
+        run: |
+          cd e2e
+          bun test
+
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: playwright-report
+          path: e2e/playwright-report/
+          retention-days: 30

e2e/.gitattributes

@@ -0,0 +1 @@
+*.graphql.ts auto eol=lf

e2e/.gitignore

@@ -0,0 +1,29 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+!src/lib/
+
+playwright-report/
+test-results/

e2e/README.md

@@ -0,0 +1,54 @@
+# React + TypeScript + Vite
+
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+
+Currently, two official plugins are available:
+
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
+
+```js
+export default tseslint.config({
+  extends: [
+    // Remove ...tseslint.configs.recommended and replace with this
+    ...tseslint.configs.recommendedTypeChecked,
+    // Alternatively, use this for stricter rules
+    ...tseslint.configs.strictTypeChecked,
+    // Optionally, add this for stylistic rules
+    ...tseslint.configs.stylisticTypeChecked,
+  ],
+  languageOptions: {
+    // other options...
+    parserOptions: {
+      project: ['./tsconfig.node.json', './tsconfig.app.json'],
+      tsconfigRootDir: import.meta.dirname,
+    },
+  },
+})
+```
+
+You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
+
+```js
+// eslint.config.js
+import reactX from 'eslint-plugin-react-x'
+import reactDom from 'eslint-plugin-react-dom'
+
+export default tseslint.config({
+  plugins: {
+    // Add the react-x and react-dom plugins
+    'react-x': reactX,
+    'react-dom': reactDom,
+  },
+  rules: {
+    // other rules...
+    // Enable its recommended typescript rules
+    ...reactX.configs['recommended-typescript'].rules,
+    ...reactDom.configs.recommended.rules,
+  },
+})
+```

e2e/app.py

@@ -0,0 +1,45 @@
+import asyncio  # noqa: INP001
+
+import strawberry
+from strawberry.schema.config import StrawberryConfig
+
+
+@strawberry.type
+class Comment:
+    id: strawberry.ID
+    content: str
+
+
+@strawberry.type
+class BlogPost:
+    id: strawberry.ID
+    title: str
+    content: str
+
+    @strawberry.field
+    async def comments(self) -> list[Comment]:
+        await asyncio.sleep(2)
+        return [
+            Comment(id=strawberry.ID("Comment:1"), content="Great post!"),
+            Comment(id=strawberry.ID("Comment:2"), content="Thanks for sharing!"),
+        ]
+
+
+@strawberry.type
+class Query:
+    @strawberry.field
+    async def hello(self, delay: float = 0) -> str:
+        await asyncio.sleep(delay)
+        return "Hello, world!"
+
+    @strawberry.field
+    async def blog_post(self, id: strawberry.ID) -> BlogPost:
+        return BlogPost(id=id, title="My Blog Post", content="This is my blog post.")
+
+
+schema = strawberry.Schema(
+    query=Query,
+    config=StrawberryConfig(
+        enable_experimental_incremental_execution=True,
+    ),
+)

e2e/app.ts

@@ -0,0 +1,134 @@
+import {
+	buildSchema,
+	experimentalExecuteIncrementally,
+	GraphQLObjectType,
+	GraphQLString,
+	GraphQLID,
+	GraphQLNonNull,
+	GraphQLList,
+	GraphQLFloat,
+	GraphQLSchema,
+	GraphQLDirective,
+	GraphQLBoolean,
+	GraphQLInt,
+	DirectiveLocation,
+} from "graphql";
+import { createHandler } from "graphql-http/lib/use/express";
+import express from "express";
+import cors from "cors";
+
+// Simulate async delay
+const delay = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms));
+
+// Define directives
+const DeferDirective = new GraphQLDirective({
+	name: "defer",
+	locations: [
+		DirectiveLocation.FRAGMENT_SPREAD,
+		DirectiveLocation.INLINE_FRAGMENT,
+	],
+	args: {
+		if: { type: GraphQLBoolean },
+		label: { type: GraphQLString },
+	},
+});
+
+const StreamDirective = new GraphQLDirective({
+	name: "stream",
+	locations: [DirectiveLocation.FIELD],
+	args: {
+		if: { type: GraphQLBoolean },
+		label: { type: GraphQLString },
+		initialCount: { type: GraphQLInt, defaultValue: 0 },
+	},
+});
+
+// Define types using GraphQLObjectType
+const CommentType = new GraphQLObjectType({
+	name: "Comment",
+	fields: {
+		id: { type: new GraphQLNonNull(GraphQLID) },
+		content: { type: new GraphQLNonNull(GraphQLString) },
+	},
+});
+
+const BlogPostType = new GraphQLObjectType({
+	name: "BlogPost",
+	fields: {
+		id: { type: new GraphQLNonNull(GraphQLID) },
+		title: { type: new GraphQLNonNull(GraphQLString) },
+		content: { type: new GraphQLNonNull(GraphQLString) },
+		comments: {
+			type: new GraphQLNonNull(
+				new GraphQLList(new GraphQLNonNull(CommentType)),
+			),
+			resolve: async () => {
+				await delay(4000);
+				return [
+					{ id: "1", content: "Great post!" },
+					{ id: "2", content: "Thanks for sharing!" },
+				];
+			},
+		},
+	},
+});
+
+const QueryType = new GraphQLObjectType({
+	name: "Query",
+	fields: {
+		hello: {
+			type: new GraphQLNonNull(GraphQLString),
+			args: {
+				delay: { type: GraphQLFloat, defaultValue: 0 },
+			},
+			resolve: async (_: unknown, { delay: delayMs }: { delay: number }) => {
+				await delay(delayMs * 1000);
+				return "Hello, world!";
+			},
+		},
+		blogPost: {
+			type: new GraphQLNonNull(BlogPostType),
+			args: {
+				id: { type: GraphQLID },
+			},
+			resolve: (_: unknown, { id }: { id: string }) => {
+				return {
+					id,
+					title: "My Blog Post",
+					content: "This is my blog post.",
+				};
+			},
+		},
+	},
+});
+
+// Create the schema
+const schema = new GraphQLSchema({
+	query: QueryType,
+	directives: [DeferDirective, StreamDirective],
+});
+
+const app = express();
+
+// Enable CORS for all routes
+app.use(
+	cors({
+		origin: "http://localhost:5173", // Allow requests from your frontend
+		methods: ["GET", "POST", "OPTIONS"], // Allow these HTTP methods
+		allowedHeaders: ["Content-Type", "Authorization"], // Allow these headers
+		credentials: true, // Allow credentials (cookies, authorization headers, etc.)
+	}),
+);
+
+// Create and use the GraphQL handler.
+app.all(
+	"/graphql",
+	createHandler({
+		schema,
+		execute: experimentalExecuteIncrementally,
+	}),
+);
+
+app.listen(4000, () => {
+	console.log("Server is running on port 4000");
+});