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fix(js/testapps/express): Fixed express testapp endpoints #3642

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fix(js/testapps/express): Fixed express testapp endpoints #3642

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fix(js/testapps/express): Fixed express testapp endpoints
Zozman Sep 25, 2025
c0a6b95
fix(js/testapps/express): Fixed express testapp endpoints
Zozman Sep 25, 2025
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30 changes: 15 additions & 15 deletions js/testapps/express/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -39,16 +39,18 @@ const ai = genkit({
],
});

const selectedModel = gemini15Flash;

export const jokeFlow = ai.defineFlow(
{ name: 'jokeFlow', inputSchema: z.string(), outputSchema: z.string() },
async (subject, { context, sendChunk }) => {
if (context!.auth!.username != 'Ali Baba') {
throw new UserFacingError('PERMISSION_DENIED', context!.auth!.username!);
if (context?.auth?.username && context.auth.username !== 'Ali Baba') {
throw new UserFacingError('PERMISSION_DENIED', context.auth.username);
}
return await ai.run('call-llm', async () => {
const llmResponse = await ai.generate({
prompt: `tell me long joke about ${subject}`,
model: gemini15Flash,
model: selectedModel,
config: {
temperature: 1,
},
Expand Down Expand Up @@ -96,18 +98,16 @@ const acls: Record<string, string> = {
jokeFlow: 'Ali Baba',
};

// curl http://localhost:5000/jokeFlow?stream=true -d '{"data": "banana"}' -H "content-type: application/json" -H "authorization: open sesame"
ai.flows.forEach((f) => {
app.post(
`/${f.name}`,
expressHandler(f, { contextProvider: auth(acls[f.name]) })
);
});
// curl http://localhost:8080/jokeFlow?stream=true -d '{"data": "banana"}' -H "content-type: application/json" -H "authorization: open sesame"
app.post(
'/jokeFlow',
expressHandler(jokeFlow, { contextProvider: auth(acls['jokeFlow']) })
);

// curl http://localhost:5000/jokeHandler?stream=true -d '{"data": "banana"}' -H "content-type: application/json"
// curl http://localhost:8080/jokeHandler?stream=true -d '{"data": "banana"}' -H "content-type: application/json"
app.post('/jokeHandler', expressHandler(jokeFlow));

// curl http://localhost:5000/jokeWithFlow?subject=banana
// curl http://localhost:8080/jokeWithFlow?subject=banana
app.get('/jokeWithFlow', async (req: Request, res: Response) => {
const subject = req.query['subject']?.toString();
if (!subject) {
Expand All @@ -117,7 +117,7 @@ app.get('/jokeWithFlow', async (req: Request, res: Response) => {
res.send(await jokeFlow(subject));
});

// curl http://localhost:5000/jokeStream?subject=banana
// curl http://localhost:8080/jokeStream?subject=banana
app.get('/jokeStream', async (req: Request, res: Response) => {
const subject = req.query['subject']?.toString();
if (!subject) {
Expand All @@ -131,7 +131,7 @@ app.get('/jokeStream', async (req: Request, res: Response) => {
});
await ai.generate({
prompt: `Tell me a long joke about ${subject}`,
model: gemini15Flash,
model: selectedModel,
config: {
temperature: 1,
},
Expand All @@ -143,7 +143,7 @@ app.get('/jokeStream', async (req: Request, res: Response) => {
res.end();
});

const port = process.env.PORT || 5000;
const port = process.env.PORT || 8080;
app.listen(port, () => {
console.log(`Example app listening on port ${port}`);
});