Public/Send-SlackWebMessage.ps1
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function Send-SlackWebMessage { Param ( [Parameter(ParameterSetName = 'ChannelName', Mandatory)] [string]$ChannelName, [Parameter(ParameterSetName = 'ChannelID', Mandatory)] [string[]]$ChannelID, [Parameter(ParameterSetName = 'ChannelName', Mandatory)] [Parameter(ParameterSetName = 'ChannelID', Mandatory)] [string]$Text ) if (-not $ChannelID) { $ChannelID = (Get-Channel -Name $ChannelName).id } foreach ($CID in $ChannelID) { $FormData = @{ channel = $CID ts = (ConvertTo-UNIXTime -Date (Get-Date)) # current time. The original client increments the low part by one. type = 'message' xArgs = '{{}}' unfurl = '[]' blocks = ('[{{{{"type":"rich_text","elements":[{{{{"type":"rich_text_section","elements":[{{{{"type":"text","text":"{0}"}}}}]}}}}]}}}}]' -f $Message) include_channel_perm_error = 'true' client_msg_id = [guid]::NewGuid().Guid token = '' # This property is filled by Invoke-ApiRequest _x_reason = 'webapp_message_send' } Invoke-ApiRequest -FormData $FormData -Method 'chat.postMessage' } } |