Public/Chat/Send-SlackMessage.ps1
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function Send-SlackMessage { [cmdletbinding()] param( [parameter(Mandatory)] [string] $token, [parameter(Mandatory)] [string] $channel, [ValidateLength(1, 4000)] [string] $text, [switch] $as_user, [pscustomobject[]] $attachments, [pscustomobject[]] $blocks, [ValidateScript( { $_.StartsWith(":") -and $_.EndsWith(":") })] [string] $icon_emoji, [string] $icon_url, [switch] $link_names, [bool] $mrkdwn = $true, [string] $parse = "none", [switch] $reply_broadcast, [string] $thread_ts, [switch] $unfurl_links, [bool] $unfurl_media = $true, [string] $username ) $Headers = @{ Authorization = "Bearer $token" } # Construct the Body based on parameters $Body = [PSCustomObject]@{ channel = $channel text = "placeholder text" } if ($text) { $Body.text = $text } if ($as_user -and !$username) { $Body | Add-Member -NotePropertyName "as_user" -NotePropertyValue $true } elseif ($as_user -and $username) { Write-Error "as_user cannot be set with a username." } if ($attachments) { $Body | Add-Member -NotePropertyName "attachments" -NotePropertyValue $attachments } if ($blocks) { $Body | Add-Member -NotePropertyName "blocks" -NotePropertyValue $blocks } if ($icon_emoji -and !$as_user) { $Body | Add-Member -NotePropertyName "icon_emoji" -NotePropertyValue $icon_emoji } elseif ($icon_emoji -and $as_user) { Write-Error "icon_emoji cannot be used with as_user set to true" } if($icon_url -and !$as_user){ $Body | Add-Member -NotePropertyName "icon_url" -NotePropertyValue $icon_url } elseif ($icon_url -and $as_user){ Write-Error } if ($username -and !$as_user) { $Body | Add-Member -NotePropertyName "username" -NotePropertyValue $username } elseif($username -and $as_user) { Write-Error "Username cannot be set with as_user set to true." } Invoke-RestMethod -Method Post -Uri 'https://slack.com/api/chat.postMessage' -Headers $Headers -ContentType 'application/json;charset=iso-8859-1' -Body ($Body | ConvertTo-Json -Depth 100) } |