Send alerts to Opsgenie using PowerShell

Opsgenie.ps1

function New-OpsgenieAlert {

    param (
        [parameter(Mandatory=$true)][string]$ApiKey,
        [parameter(Mandatory=$true)][string]$Message,
        [parameter(Mandatory=$false)][string]$Alias,
        [parameter(Mandatory=$false)][string]$Description,
        [parameter(Mandatory=$false)][PSCustomObject[]]$Responders,
        [parameter(Mandatory=$false)][PSCustomObject[]]$VisibleTo,
        [parameter(Mandatory=$false)][string[]]$Actions,
        [parameter(Mandatory=$false)][string[]]$Tags,
        [parameter(Mandatory=$false)][PSCustomObject[]]$Details,
        [parameter(Mandatory=$false)][string]$Entity = "PowerShell",
        [parameter(Mandatory=$false)][string]$Source,
        [parameter(Mandatory=$false)][string]$Priority,
        [parameter(Mandatory=$false)][string]$User,
        [parameter(Mandatory=$false)][string]$Note
    )

    $params = @{
        "message"=$Message;
        "alias"=$Alias;
        "description"=$Description;
        "responders"=$Responders;
        "visibleTo"=$VisibleTo;
        "actions"=$Actions;
        "tags"=$Tags;
        "details"=$Details;
        "entity"=$Entity;
        "source"=$Source;
        "priority"=$Priority;
        "user"=$User;
        "note"=$Note;
    }
    
    Invoke-RestMethod -Uri "https://api.opsgenie.com/v2/alerts" `
        -ContentType "application/json" `
        -Method POST `
        -Body ($params|ConvertTo-Json) `
        -Headers @{"Authorization"="GenieKey $ApiKey"}

}

# Usage:
# New-OpsgenieAlert `
#    -ApiKey $OpsgenieKey `
#    -Message "Failed to do a thing." `
#    -Description "So I created this alert." `
#    -Priority "P3"