DaddyIsHere•4d ago

thread.`generateText/streamText` returns a validator error

Heya guys, I'm new! I am building a small chat app with Convex Agents and I've encountered an error that I don't seem to be able to solve:

const response = await thread.generateText(
  {
    prompt: `# From Notes:\n\n ${contextText}\n\n---\n\n# User Prompt:\n\n"""${message}\n"""`,
  },
);

const response = await thread.generateText(
  {
    prompt: `# From Notes:\n\n ${contextText}\n\n---\n\n# User Prompt:\n\n"""${message}\n"""`,
  },
);

const response = await thread.streamText(
    {
        prompt: `# From Notes:\n\n ${contextText}\n\n---\n\n# User Prompt:\n\n"""${message}\n"""`,
    },
    {
        saveStreamDeltas: true, // PROBLEMATIC LINE
    },
);
await response.consumeStream();

const response = await thread.streamText(
    {
        prompt: `# From Notes:\n\n ${contextText}\n\n---\n\n# User Prompt:\n\n"""${message}\n"""`,
    },
    {
        saveStreamDeltas: true, // PROBLEMATIC LINE
    },
);
await response.consumeStream();

These functions (even with just {message} and not the whole prompt) are giving me the errors in the screenshots, ONLY if I actually save the message in the database. If I pass saveMessages: "none" and/or saveStreamDeltas: false the problem goes away (but streaming doesn't work and the whole flow is generally slower). Can you help me understand what the problem is? 🙏🏽 (I can give you more context if needed!)

1 Reply

ampp•3d ago

#agents its hard to tell exactly without seeing a lot of code, but there are many examples in the agents folder that should show nearly everything. #2 is passing a array when expecting a string looks like. so you could pass the first item in the array to see what you get etc.

thread.`generateText/streamText` returns a validator error

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