SlackConnector

Posts a message or uploads a file to the Slack group chat service.

Typical Uses

Automating Slack tasks

How does it work?

To use this transformer, an authentication token for the sending Slack user must be provided. These can be obtained from Slack at the URL https://api.slack.com/docs/oauth-test-tokens.

Usage Notes

This transformer is often used to notify recipients of translation status. It is often used downstream from the FeatureWriter to either send translation statistics or the entire translation output, to Slack. The TempPathnameCreator transformer may be useful in such workflows.

Configuration

Input Ports

Output Ports

Parameters

Authorization

Slack Connection

Select or create a Web Connection to connect to Slack.

Message

Message	The content of the message post. Slack formatting can be included in the message as per the description at https://api.slack.com/docs/formatting and https://get.slack.help/hc/en-us/articles/202288908-Formatting-your-messages
Post As	A message may be posted as the user providing the authentication token for the transformer, or as a bot.
Bot Name	When posting as a bot, an arbitrary bot user name must be provided.
Bot Emoji or URL	When posting as a bot, an emoji or URL must be specified as the icon to use for the message. The enclosing colons (:) for the emoji are optional. For example, specifying clap would result in the :clap: emoji being used as the message icon. Specifying https://www.safe.com/wp-content/uploads/2023/02/fme-logo.svg will use Safe Software logos as the message icon.

File Upload

Title	The title of the file being uploaded. This will be displayed in bold above the file in the target Slack channel.
File	The name of an existing file on the host computer. The contents of this file will be uploaded.
Comment	An optional initial comment to add to the file. This will be displayed after the file snippet in the target Slack channel.

Editing Transformer Parameters

Transformer parameters can be set by directly entering values, using expressions, or referencing other elements in the workspace such as attribute values or user parameters. Various editors and context menus are available to assist. To see what is available, click beside the applicable parameter.

How to Set Parameter Values

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters.

Using the Text Editor

The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.

Text Editor

Using the Arithmetic Editor

The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.

Arithmetic Editor

Conditional Values

Set values depending on one or more test conditions that either pass or fail.

Parameter Condition Definition Dialog

Content

Expressions and strings can include a number of functions, characters, parameters, and more.

When setting values - whether entered directly in a parameter or constructed using one of the editors - strings and expressions containing String, Math, Date/Time or FME Feature Functions will have those functions evaluated. Therefore, the names of these functions (in the form @<function_name>) should not be used as literal string values.

Content Types

String Functions	These functions manipulate and format strings.
Special Characters	A set of control characters is available in the Text Editor.
Math Functions	Math functions are available in both editors.
Date/Time Functions	Date and time functions are available in the Text Editor.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	These return primarily feature-specific values.
FME Parameters	FME and workspace-specific parameters may be used.
Creating and Modifying User Parameters	Create your own editable parameters.

Dialog Options - Tables

Table Tools

Transformers with table-style parameters have additional tools for populating and manipulating values.

Row Reordering

Enabled once you have clicked on a row item. Choices include:

Add a row
Remove a row
Move current row up one
Move current row down one
Move current row to top
Move current row to bottom

Cut, Copy, and Paste

Enabled once you have clicked on a row item. Choices include:

Cut a row - delete and copy to clipboard
Copy a row to the clipboard
Paste a row from the clipboard

Cut, copy, and paste may be used within a transformer, or between transformers.

Filter

Start typing a string, and the matrix will only display rows matching those characters. Searches all columns. This only affects the display of attributes within the transformer - it does not alter which attributes are output.

Import

Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers.

Reset/Refresh

Generally resets the table to its initial state, and may provide additional options to remove invalid entries. Behavior varies between transformers.

Note: Not all tools are available in all transformers.

For more information, see Transformer Parameter Menu Options.

Reference

Processing Behavior	Feature-Based
Feature Holding	No
Dependencies
Aliases
History	As of March 11, 2025, File Upload will no longer work for FME versions prior to 2024.1.1.

FME Community

The FME Community has a wealth of FME knowledge with over 20,000 active members worldwide. Get help with FME, share knowledge, and connect with users globally.

Search for all results about the SlackConnector on the FME Community.

Examples may contain information licensed under the Open Government Licence – Vancouver, Open Government Licence - British Columbia, and/or Open Government Licence – Canada.

Channel	The target Slack channel for the message or file upload. The channel may be public or private. A leading # will be prefixed onto the channel name if it was not specified.
Type	The kind of Slack post to make. Either a Message, or a File Upload may be performed. If a message is to be posted, then its contents and the identify of the poster need to be specified. If a file is to be uploaded, then a title, the filename, and an optional comment will be required.