feat(examples): add load-and-edit workflow SDK example in Python and TypeScript (#441)

Closes #370

examples/typescript/load_and_edit_workflow.ts

@@ -0,0 +1,63 @@
+// Load an existing workflow, edit a node prompt, and save it as a draft.
+//
+// Requirements:
+//   npm install @dograh/sdk
+//
+// Environment variables:
+//   DOGRAH_API_ENDPOINT  - Dograh API base URL (e.g. http://localhost:8000)
+//   DOGRAH_API_TOKEN     - API token sent as X-API-Key
+//
+// Run:
+//   npx tsx load_and_edit_workflow.ts
+
+import { DograhClient } from "@dograh/sdk";
+
+// Replace with the numeric ID of an existing agent in your Dograh account.
+const WORKFLOW_ID = 0;
+
+// Sentence appended to the startCall node's prompt when the script runs.
+const PROMPT_SUFFIX = " Please be concise — keep all responses under two sentences.";
+
+async function main(): Promise<void> {
+    const apiEndpoint = process.env.DOGRAH_API_ENDPOINT ?? "http://localhost:8000";
+    const apiToken = process.env.DOGRAH_API_TOKEN;
+
+    if (!apiToken) throw new Error("DOGRAH_API_TOKEN is required");
+    if (WORKFLOW_ID === 0) throw new Error("Set WORKFLOW_ID at the top of this file to an existing workflow ID");
+
+    const client = new DograhClient({
+        baseUrl: apiEndpoint,
+        apiKey: apiToken,
+    });
+
+    const existing = await client.getWorkflow(WORKFLOW_ID);
+    console.log(`Loaded workflow ${existing.id}: ${JSON.stringify(existing.name)} (status=${existing.status})`);
+
+    const definition = structuredClone(existing.workflow_definition) as {
+        nodes?: Array<{ type?: string; data?: Record<string, unknown> }>;
+    };
+
+    for (const node of definition.nodes ?? []) {
+        if (node.type === "startCall") {
+            node.data = node.data ?? {};
+            node.data.prompt = ((node.data.prompt as string) ?? "") + PROMPT_SUFFIX;
+            break;
+        }
+    }
+
+    const result = await client.updateWorkflow(WORKFLOW_ID, {
+        body: {
+            name: existing.name,
+            workflow_definition: definition as Record<string, unknown>,
+        },
+    });
+    console.log(
+        `Saved draft for workflow ${result.id}: ${JSON.stringify(result.name)} ` +
+        `(version=${result.version_number}, status=${result.version_status})`,
+    );
+}
+
+main().catch((err) => {
+    console.error(err);
+    process.exit(1);
+});

examples/typescript/package.json

@@ -5,7 +5,8 @@
   "type": "module",
   "scripts": {
     "call": "tsx --env-file=.env fetch_workflow_and_call.ts",
-    "create": "tsx --env-file=.env create_workflow.ts"
+    "create": "tsx --env-file=.env create_workflow.ts",
+    "edit": "tsx --env-file=.env load_and_edit_workflow.ts"
   },
   "dependencies": {
     "@dograh/sdk": "latest"