Slack: Upload File (Bots)
Upload files to Slack with Bots.
Describing auto-step to post messages to Slack. There are two types of posting method, so let’s use them according to the scene.
Sends an ephemeral message, which is visible only to the assigned user in a specific public channel, private channel, or private conversation. The user should be in the channel specified. SLACK USER is ID of the user who will receive the message.
Uploads files. If you want to share files, specify a comma separated list of channel names or IDs in SLACK CHANNELs.
Sends a message to a channel. SLACK CHANNEL can be an encoded ID, or a name for channel, private group, or IM channel to send message to.