PowerShell module to send log to ElasticSearch

mod_eslog.psm1

###############################
# YOUR LOGS TO ELASTIC SEARCH #
###############################

function Get-ESConfig () {
    [xml] $log4netConfig = Get-Content -Path $env:CONFIG_LOGGER_FILE

    return $log4netConfig.log4net.appender | Where-Object { $_.name -eq "ElasticSearchAppender" }
}

$ESConfig = Get-ESConfig

function Get-ESBaseUri () {    
    $esServer = $ESConfig.Server
    $esPort = $ESConfig.Port
    $esProtocol = if ($esPort -eq "443") { "https" } else { "http" }

    return "${esProtocol}://${esServer}:${esPort}"
}

$ESBaseUri = Get-ESBaseUri

function Get-ESIndexPrefix () {
    return $ESConfig.IndexName.Split("%")[0]
}

$ESIndexPrefix = Get-ESIndexPrefix

function Get-ESIndexUri (
    [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
    [ValidateNotNullOrEmpty()]
    [String]
    $IndexSuffix
) {  
    return "$ESBaseUri/${ESIndexPrefix}${IndexSuffix}/_doc"
}

function Send-ESLog (
    [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
    [ValidateNotNullOrEmpty()]
    [String]
    $IndexUri,
    [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
    [ValidateNotNullOrEmpty()]
    [String]
    $Body
) {
    return Invoke-RestMethod -Method Post `
                             -Uri $IndexUri `
                             -ContentType: 'application/json' `
                             -Body $Body
}

function Get-ESLog (
    [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
    [ValidateNotNullOrEmpty()]
    [String]
    $IndexUri,
    [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
    [ValidateNotNullOrEmpty()]
    [String]
    $DocId
) {
    return Invoke-RestMethod -Method Get -Uri $IndexUri/$DocId
}

function Search-ESLog (
    [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
    [ValidateNotNullOrEmpty()]
    [String]
    $IndexUri
) {
    return Invoke-RestMethod -Method Get -Uri $IndexUri/_search
}