2 replies

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}{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"saveMessages: "none" and/or saveStreamDeltas: falsesaveStreamDeltas: 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!)

Convex Community•14mo ago•

2 replies

DaddyIsHere

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();

(I can give you more context if needed!)

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