Send Message to Slack via PowerShell

slackbot_client.psm1

<#
.SYNOPSIS
Method to send webhook into Slack.

.DESCRIPTION
Method to set message into Slack.

.PARAMETER webhookUrl
Url of the webhook

.PARAMETER text
Text to be sent

.PARAMETER channel
Name of the channel

.PARAMETER botName
Name of the bot, default "webhookbot"

.PARAMETER emoji
Emoji icon, default ":ghost:"


.EXAMPLE
Send message to general channel: SendMesssageToSlack "https://hooks.slack.com/services/*" "Hi!" "#general"
Send message to general channel with botname: SendMesssageToSlack "https://hooks.slack.com/services/*" "Build failed!" "#general" "Build watcher"
Send message to general channel with botname and its emoji: SendMesssageToSlack "https://hooks.slack.com/services/*" "Build failed!" "#general" "Build watcher" ":rage:"

#>
Function SendMesssage ([string] $webhookUrl, [string] $text,[string] $channel, [string] $botName="webhookbot", [string] $emoji=":ghost:") {


    $body = @{
        channel = $channel;
        username = $botName;
        text = $text;
        icon_emoji = $emoji
    }

    $result = (Invoke-RestMethod -Method Post -Uri $webhookUrl -Body (ConvertTo-Json $body))
    Write-Host $result

}