PublishSlack 2.3.0¶

BUNDLE¶

org.apache.nifi | nifi-slack-nar

DESCRIPTION¶

Posts a message to the specified Slack channel. The content of the message can be either a user-defined message that makes use of Expression Language orthe contents of the FlowFile can be sent as the message. If sending a user-defined message, the contents of the FlowFile may also be optionally uploaded asa file attachment.

TAGS¶

chat.postMessage, conversation, publish, send, slack, social media, team, text, unstructured, upload, write

INPUT REQUIREMENT¶

REQUIRED

Supports Sensitive Dynamic Properties¶

false

PROPERTIES¶

Property	Description
Access Token	OAuth Access Token used for authenticating/authorizing the Slack request sent by NiFi. This may be either a User Token or a Bot Token. The token must be granted the chat:write scope. Additionally, in order to upload FlowFile contents as an attachment, it must be granted files:write.
Channel	The name or identifier of the channel to send the message to. If using a channel name, it must be prefixed with the # character. For example, #general. This is valid only for public channels. Otherwise, the unique identifier of the channel to publish to must be provided.
Character Set	Specifies the name of the Character Set used to encode the FlowFile contents.
Include FlowFile Content as Attachment	Specifies whether or not the contents of the FlowFile should be uploaded as an attachment to the Slack message.
Max FlowFile Size	The maximum size of a FlowFile that can be sent to Slack. If any FlowFile exceeds this size, it will be routed to failure. This plays an important role because the entire contents of the file must be loaded into NiFi’s heap in order to send the data to Slack.
Message Text	The text of the message to send to Slack.
Methods Endpoint Url Prefix	Customization of the Slack Client. Set the methodsEndpointUrlPrefix. If you need to set a different URL prefix for Slack API Methods calls, you can set the one. Default value: https://slack.com/api/ (https://slack.com/api/)
Publish Strategy	Specifies how the Processor will send the message or file to Slack.
Thread Timestamp	The Timestamp identifier for the thread that this message is to be a part of. If not specified, the message will be a top-level message instead of being in a thread.

RELATIONSHIPS¶

NAME	DESCRIPTION
failure	FlowFiles are routed to ‘failure’ if unable to be sent to Slack for any other reason
rate limited	FlowFiles are routed to ‘rate limited’ if the Rate Limit has been exceeded
success	FlowFiles are routed to success after being successfully sent to Slack

WRITES ATTRIBUTES¶

NAME	DESCRIPTION
slack.channel.id	The ID of the Slack Channel from which the messages were retrieved
slack.ts	The timestamp of the slack messages that was sent; this is used by Slack as a unique identifier

USE CASES¶

Send specific text as a message to Slack, optionally including the FlowFile’s contents as an attached file.

Send the contents of the FlowFile as a message to Slack.

Use Cases Involving Other Components¶

Respond to a Slack message in a thread.