fix code (#17761)

Author: elithrar

src/content/docs/workflows/get-started/guide.mdx

@@ -46,32 +46,67 @@ This will create a new folder called `workflows-starter`.
 Open the `src/index.ts` file in your text editor. This file contains the following code, which is the most basic instance of a Workflow definition:
 
 ```ts title="src/index.ts"
-// Import the Workflow definition
-import { WorkflowEntrypoint, WorkflowEvent, WorkflowStep } from "cloudflare:workers"
+import { WorkflowEntrypoint, WorkflowStep, WorkflowEvent } from 'cloudflare:workers';
 
-type Params = {}
+type Env = {
+	// Add your bindings here, e.g. Workers KV, D1, Workers AI, etc.
+	MY_WORKFLOW: Workflow;
+};
 
-// Create your own class that implements a Workflow
-export class MyWorkflow extends WorkflowEntrypoint {
-    // Define a run() method
-    async run(event: WorkflowEvent<Params>, step: WorkflowStep) {
-        // Define one or more steps that optionally return state.
-      	const state = await step.do('my first step', async () => {
-            return {}
+// User-defined params passed to your workflow
+type Params = {
+	email: string;
+	metadata: Record<string, string>;
+};
+
+export class MyWorkflow extends WorkflowEntrypoint<Env, Params> {
+	async run(event: WorkflowEvent<Params>, step: WorkflowStep) {
+		// Can access bindings on `this.env`
+		// Can access params on `event.params`
+
+		const files = await step.do('my first step', async () => {
+			// Fetch a list of files from $SOME_SERVICE
+			return {
+				inputParams: event,
+				files: [
+					'doc_7392_rev3.pdf',
+					'report_x29_final.pdf',
+					'memo_2024_05_12.pdf',
+					'file_089_update.pdf',
+					'proj_alpha_v2.pdf',
+					'data_analysis_q2.pdf',
+					'notes_meeting_52.pdf',
+					'summary_fy24_draft.pdf',
+				],
+			};
+		});
+
+		const apiResponse = await step.do('some other step', async () => {
+			let resp = await fetch('https://api.cloudflare.com/client/v4/ips');
+			return await resp.json<any>();
 		});
 
 		await step.sleep('wait on something', '1 minute');
 
 		await step.do(
 			'make a call to write that could maybe, just might, fail',
+			// Define a retry strategy
+			{
+				retries: {
+					limit: 5,
+					delay: '5 second',
+					backoff: 'exponential',
+				},
+				timeout: '15 minutes',
+			},
 			async () => {
-				// Do stuff here, with access to 'state' from the previous step
+				// Do stuff here, with access to the state from our previous steps
 				if (Math.random() > 0.5) {
 					throw new Error('API call to $STORAGE_SYSTEM failed');
 				}
-			}
+			},
 		);
-    }
+	}
 }
 ```
 
@@ -104,7 +139,7 @@ import { WorkflowEntrypoint, WorkflowEvent, WorkflowStep } from "cloudflare:work
 type Params = {}
 
 // Create your own class that implements a Workflow
-export class MyWorkflow extends WorkflowEntrypoint {
+export class MyWorkflow extends WorkflowEntrypoint<Env, Params> {
     // Define a run() method
     async run(event: WorkflowEvent<Params>, step: WorkflowStep) {
         // Define one or more steps that optionally return state.
@@ -188,13 +223,18 @@ We have a very basic Workflow definition, but now need to provide a way to call
 Return to the `src/index.ts` file we created in the previous step and add a `fetch` handler that _binds_ to our Workflow. This binding allows us to create new Workflow instances, fetch the status of an existing Workflow, pause and/or terminate a Workflow.
 
 ```ts title="src/index.ts"
-// This can be in the same file as our Workflow definition
+// This is in the same file as your Workflow definition
 
 export default {
 	async fetch(req: Request, env: Env): Promise<Response> {
-		let id = new URL(req.url).searchParams.get('instanceId');
+		let url = new URL(req.url);
+
+		if (url.pathname.startsWith('/favicon')) {
+			return Response.json({}, { status: 404 });
+		}
 
 		// Get the status of an existing instance, if provided
+		let id = url.searchParams.get('instanceId');
 		if (id) {
 			let instance = await env.MY_WORKFLOW.get(id);
 			return Response.json({
@@ -210,7 +250,6 @@ export default {
 		});
 	},
 };
-;
 ```
 
 The code here exposes a HTTP endpoint that generates a random ID and runs the Workflow, returning the ID and the Workflow status. It also accepts an optional `instanceId` query parameter that retrieves the status of a Workflow instance by its ID.
@@ -297,9 +336,14 @@ export class MyWorkflow extends WorkflowEntrypoint<Env, Params> {
 
 export default {
 	async fetch(req: Request, env: Env): Promise<Response> {
-		let id = new URL(req.url).searchParams.get('instanceId');
+		let url = new URL(req.url);
+
+		if (url.pathname.startsWith('/favicon')) {
+			return Response.json({}, { status: 404 });
+		}
 
 		// Get the status of an existing instance, if provided
+		let id = url.searchParams.get('instanceId');
 		if (id) {
 			let instance = await env.MY_WORKFLOW.get(id);
 			return Response.json({