Actions7
Overview
This node integrates with the Line Messaging API to perform various messaging-related operations. Specifically, for the "Get Message Content" operation, it retrieves the binary content of a message given its unique message ID. This is useful when you want to fetch media or file data (such as images, videos, or audio) sent in a Line message.
Common scenarios include:
- Downloading and processing media files sent by users in a chat.
- Archiving message attachments for compliance or backup.
- Triggering workflows based on the content of received messages.
Example: You receive a message containing an image from a user, and you want to download that image to store it or analyze it further in your workflow.
Properties
| Name | Meaning |
|---|---|
| Message ID | The unique identifier of the message whose content you want to retrieve. |
Output
The output contains two main parts:
json: An empty JSON object{}since the actual content is returned as binary data.binary: A binary property nameddatawhich holds the raw content of the message (e.g., image, video, audio). The binary data includes the correct MIME type based on the content retrieved.
This allows downstream nodes to process or save the media content directly.
Dependencies
- Requires an active connection to the Line Messaging API using a valid API authentication token (channel access token).
- The node depends on the official Line SDK's messaging API clients to interact with the service.
- Proper credentials must be configured in n8n to authenticate requests.
Troubleshooting
- No auth provided: If the node throws an error indicating missing authentication, ensure that the API key credential is properly set up and linked to the node.
- Invalid Message ID: Providing an incorrect or non-existent message ID will likely result in an error or empty response. Verify the message ID before use.
- Network issues: Connectivity problems with the Line API endpoint can cause failures; check network settings and API availability.
- Unsupported content types: While the node handles binary data, some uncommon or unsupported media types might not be processed correctly downstream.