use of the sys.files variable on other nodes

[G81192]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

My issue is similar to #7260. I see that issue #7260 has been closed, but I find that the problem still exists. I am unable to use the sys.files variable on other nodes, and I'm not sure if this is due to my configuration or if this feature is still unsupported.

2. Additional context or comments

No response

3. Can you help us with this feature?

• I am interested in contributing to this feature.

[G81192]

and I’m currently using the latest version (0.10.2)

[dosubot]

I found a similar discussion and issue related to using the sys.files variable in workflow nodes. The issue was addressed by ensuring that the isShowVisionConfig condition is true, which allows the vision configuration, including sys.files, to be available. This is controlled by the following code:

const isShowVisionConfig = !!currModel?.features?.includes(ModelFeatureEnum.vision);

Make sure isShowVisionConfig is set to true in your configuration. Additionally, ensure that the image upload function is enabled in the 'Features' section of the application orchestration page. The workflow should be configured to handle file variables properly by fetching files from the variable pool using the _fetch_files method and converting tool messages to include files using the _convert_tool_messages method ^[1][2].

If you are still experiencing issues, it might be worth checking if your configuration aligns with these requirements.

To continue talking to Dosu, mention @dosu.

[G81192]

I have a scenario where I need to create a custom tool to recognize QR code information from uploaded images. How can I access the uploaded image file in the tool?

[dosubot]

To access the uploaded image file in a custom tool for recognizing QR code information, you can use the ToolFileMessageTransformer class to transform the tool invoke messages. When the message type is ToolInvokeMessage.MessageType.IMAGE, the image is downloaded, and a URL is generated for it. You can then use this URL to access the image file.

Here's a relevant code snippet:

if message.type == ToolInvokeMessage.MessageType.IMAGE and isinstance(message.message, str):
    try:
        file = ToolFileManager.create_file_by_url(
            user_id=user_id, tenant_id=tenant_id, conversation_id=conversation_id, file_url=message.message
        )

        url = f'/files/tools/{file.id}{guess_extension(file.mimetype) or ".png"}'
        result.append(
            ToolInvokeMessage(
                type=ToolInvokeMessage.MessageType.IMAGE_LINK,
                message=url,
                save_as=message.save_as,
                meta=message.meta.copy() if message.meta is not None else {},
            )
        )
    except Exception as e:
        logger.exception(e)
        result.append(
            ToolInvokeMessage(
                type=ToolInvokeMessage.MessageType.TEXT,
                message=f"Failed to download image: {message.message}, please try to download it manually.",
                meta=message.meta.copy() if message.meta is not None else {},
                save_as=message.save_as,
            )
        )

This code attempts to download the image using the URL provided in the message and then constructs a new URL to access the image file. You can use this URL to access the image for QR code recognition ^[1].

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[crazywoola]

Currently, I don't think we can do this, all images's preview are presigned and they will be outdated in a very short time. I have already talk to our dev team regarding this issue. I suggest you can use HTTP to upload to other OSS storage and return a url instead.

[G81192]

Currently, I don't think we can do this, all images's preview are presigned and they will be outdated in a very short time. I have already talk to our dev team regarding this issue. I suggest you can use HTTP to upload to other OSS storage and return a url instead.

@crazywoola Okay, I see that the HTTP request node can use the sys.files variable and upload files, which should solve my problem. Thank you