The ‘chat.PostMessage’ method has mandatory requirements to specify the token, channel and text arguments. The protocol ‘https’ is specified as all methods must be called using this protocol. The function uses the Invoke-WebRequest cmdlet to send a request to the URL ‘ ‘ and provide the arguments for generating the message that will be posted to the specified Slack channel. Currently, this method for authenticatin is not supported within the function. If you plan to authenticate several users, it is recommended to use OAuth2 by registering your application. In order to provide authentication to the API this can be achieved by a bearer token to identify a single user which uses a generated full-access token, see ‘ ‘ for more details and to generate/retrieve your bearer token information.
The Slack Web API allows you to build applications that interact with Slack in more complex ways than the integrations we provide out of the box.Ĭurrently, my requirement is only to post messages and therefore the function only provides support for the chat.PostMessage method to posts a message to a public channel, private group, or IM channel. Therefore, I created a Windows PowerShell function that would post a message to a specified slack channel using the Web API methods available, which according to Slack: One use case was to send messages to channels within Slack when certain steps in an automated workflow were triggered and to provide notification of the status upon completion. As previously commented I had been exploring the use of Slack and integration with other tools.
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