'Missing required field `prompt`'

Hi, I'm trying to run a function from appwrite dashboard. I've been following the next tutorial:

Then, I've create the next function:

import { HfInference } from '@huggingface/inference';

export default async ({ req, res, log, error }) => { log('Hello, Logs!'); log(req.body); if (!req.body.prompt || typeof req.body.prompt !== 'string') { log('No body'); return res.json({ ok: false, error: 'Missing required field prompt' }, 400); } else{ log(Prompt: ${req.body.prompt}); }

const hf = new HfInference(process.env.HUGGINGFACE_ACCESS_TOKEN);

try {
    const completion = await hf.textGeneration({
        model: 'mistralai/Mistral-7B-Instruct-v0.2',
        inputs: req.body.prompt,
        max_new_tokens: req.body.max_new_tokens || 200,
    });
    return res.json({ ok: true, completion }, 200);
} catch (err) {
    return res.json({ ok: false, error: 'Failed to query model.' }, 500);
}

}

But, at the time to run it from appwrite dashboard, my code run the if statement: if (!req.body.prompt || typeof req.body.prompt !== 'string') { ......... }

The logs I get is:

Hello, Logs! { "prompt": "Write a story about a dragon" } No body

In the appwrite dashboard I run and pass the parameters to the body field as indicated in the tutorial: { "prompt": "Write a story about a dragon" }

but the "req.body.prompt" always is undefined i dont know what this happens.

Thanks in advanced.