Attachment Upload Strategy "hosted"

[aerobless]

The guide mentions a Upload Strategy called "hosted" but this property doesn't actually exist (relevant code line)

When running it without that property I get:

  composer: {
    placeholder: PLACEHOLDER_INPUT,
    attachments: {
      enabled: true,
      maxCount: 5,
      maxSize: 10485760
    },..

{
  "error": {
    "message": "File uploads are disabled for this session.",
    "type": "invalid_request_error",
    "param": null,
    "code": "chatkit.file_upload_disabled"
  }
}

How to use file uploads with the Open AI hosted backend? Or does it currently only work with a self-hosted backend?

[paulo-coronado]

I am also trying to upload files via the hosted upload strategy, but I am getting a similar error.

This is my composer object:

composer: {
  placeholder: 'Escreva uma mensagem',
    attachments: {
      enabled: true,
      uploadStrategy: { type: 'hosted' },
      accept: {
        'image/*': ['.png', '.jpg', '.jpeg', '.webp', '.gif']
      },
      maxCount: 5,
      maxSize: 10485760, // 10MB
    },
}, ...

When I try to upload a file this client-side error I get:

Uncaught InvalidFrameParamsError: Invalid frame params: ChatKit.create():
✖ Unrecognized key: "uploadStrategy"

This guide suggests us to use uploadStrategy: { type: 'hosted' }, but according to the documentation ComposerOption has no uploadStrategy parameter.

[weedon-openai]

We'll get the docs fixed, in the meantime, the reference is correct - uploadStrategy moved to api and is only required if you are using a custom backend. If you are using hosted ChatKit you need to enable uploads when you create the ChatKitSession. You'll still need to enable them client side as well. We'll see about simplifying that.

[paulo-coronado]

Thanks @weedon-openai!

Quick question — when using the hosted ChatKit, is it possible to fetch an attached file or image through onClientTool?
I tried configuring the agent to send the attachment’s URL or file ID, but couldn’t get it to work.

Is there an easier way to handle file access within onClientTool?