Overview
This node, named "Line Messaging Data," is designed to interact with the Line Messaging API to send and receive large amounts of data. Specifically, it supports an operation called "Get Content" that retrieves the content of a message by its ID. This is useful when you want to fetch media or other data attached to a message sent or received via the Line platform.
Common scenarios include:
- Downloading images, videos, or files sent in a Line chat for further processing.
- Archiving message attachments from Line conversations.
- Integrating Line messaging content into other workflows or systems.
For example, if a user sends a photo in a Line chat, this node can retrieve the binary content of that photo using its message ID, allowing subsequent nodes to process or store the image.
Properties
| Name | Meaning |
|---|---|
| Message ID | The unique identifier of the message whose content you want to retrieve. |
| Binary Property | The name of the binary property where the retrieved content will be stored in the output data. |
| Additional Options | Collection of optional settings: - Check Transcoding Status: Whether to verify if content is ready before retrieval (useful for large files). - Retry Count: Number of times to retry if content is still processing. - Retry Interval (Seconds): How long to wait between retries. |
Output
The node outputs the retrieved message content as binary data under the specified binary property name. The json output field typically contains metadata about the message or the content, while the actual media or file data is stored in the binary property.
This allows downstream nodes to access the raw content directly for saving to disk, uploading elsewhere, or further manipulation.
Dependencies
- Requires an active connection to the Line Messaging API using appropriate API authentication credentials.
- The node depends on the Line Messaging API's ability to provide message content by message ID.
- No additional external services are required beyond the Line Messaging API.
Troubleshooting
- Content Not Ready: If the content is large or undergoing transcoding, the node may not retrieve it immediately. Use the "Check Transcoding Status" option with retries configured to handle this scenario.
- Invalid Message ID: Providing an incorrect or non-existent message ID will result in failure to retrieve content. Verify the message ID before running the node.
- Authentication Errors: Ensure the API key or token used for Line Messaging API access is valid and has sufficient permissions.
- Timeouts or Network Issues: Network instability can cause failures; consider increasing retry counts or intervals if intermittent issues occur.