BitcoinFees for Azure Functions and Slack Bot Integration

bitcoinfees.ps1

# Christopher Jackson
# Generate a range of Bitcoin Transaction fees based on speed
# 1/7/2018

$satoshi = 0.00000001
$size = 226
$btcprice = 16750

$json = $(Invoke-WebRequest -Uri https://bitcoinfees.earn.com/api/v1/fees/list -UseBasicParsing).Content | ConvertFrom-Json
$fees = $json.fees
$length = $($fees | Where maxMinutes -lt 10000).Length
$very_slow = $fees | Where maxMinutes -lt 10000 | Select -First 3 | Sort-Object -Property maxMinutes -Unique -Descending
$slow = $fees | Where maxMinutes -lt 10000 | Select -Skip $($length * 0.2) -First 3 | Sort-Object -Property maxMinutes -Unique -Descending
$medium = $fees | Where maxMinutes -lt 10000 | Select -Skip $($length * 0.5) -First 3 | Sort-Object -Property maxMinutes -Unique -Descending
$fast = $fees | Where maxMinutes -lt 10000 | Select -Skip 6 -Last 3 | Sort-Object -Property maxMinutes -Unique -Descending

# Speed Network Fee (BTC)  Network Fee (USD) Wait time (Hours) 
$Result = ForEach ($speed in @($very_slow, $slow, $medium, $fast)) {
    ForEach ($s in $speed) {
        $s | Select @{N="Network Fee (BTC)";E={"{0:N7}" -f $($s.maxFee * $size * $satoshi)}},
                    @{N="Network Fee (USD)";E={"{0:C2}" -f $($s.maxFee * $size * $satoshi * $btcprice)}},
                    @{N="Wait Time (Hours)";E={"{0:N1}" -f ($s.maxMinutes / 60)}}
    }
}

$request = Get-Content $req -Raw
$request -match "user_name=(\w+)"
$user = $Matches[0]
$user = $user.Split("=")[1]

$body = "{""response_type"": ""in_channel"",""text"":""``````$($Result | Out-String)```````nGood luck @$user""}"
Invoke-WebRequest -Uri https://hooks.slack.com/services/<your service key> -Method POST -ContentType "application/json" -Body $body -UseBasicParsing
#Out-File -Encoding Ascii -FilePath $res -inputObject "$($Result | Out-String)"