Get-Nutrient composition of Food Items using Powershell

If you’re Calorie Conscious or by any chance nerd? Then this one is for you 🙂 So how about getting the Nutritional value of a food item from Powershell 😀

HOW IT WORKS :

To make it work we are simply making calls to a REST API of “United States Department of Agriculture” to search your food item and some data wrangling to get the nutrition report.

NOTE : You’ve to just register for a API subscription key from here under ‘gaining access’ section of the page. Once you’re subscribed, place the key in the script (Line-15) and you’ll be able to get-nutrients like in the following animation

SCRIPT : 

	Function Get-Nutrient
	{
	[cmdletbinding()]
	[Alias("Nutrient")]
	Param
	(
	[Parameter(Mandatory=$True)] [String] $Query
	)
	$Script:i=0
	Write-Verbose "Searching `"$Query`" in Nutrient database.."
	# Send Web request to the REST API to Search items with the user given Query/Item
	$result = (Invoke-RestMethod -Uri "http://api.nal.usda.gov/ndb/search/?format=json&q=$Query&sort=n&offset=0&api_key=YOURSUBSCRIPTIONKEYGOESHERE").list.item |`
	select @{n='Choice';e={$Script:i=$Script:i+1;$Script:i}},`
	@{n='Name';e={(Get-Culture).textinfo.totitlecase(($_.name -split ", UPC: ")[0].ToLower())}},`
	@{n='Category';e={$_.Group}},@{n='12DigitBarCode';e={$barcode=($_.name -split "UPC: ")[1];If($barcode){$barcode}else{"NA"}}},
	@{n='NutrientDBNo';e={$_.Ndbno}}
	# Display results from the Search and Get the Choice from the user
	If($result)
	{
	Write-host "$($result |select Choice, Name, 12DigitBarCode -first 20 |Out-String)"
	$Choice = Read-Host "Enter You choice"
	Write-Verbose "Calling REST API and Getting Nutrient composition"
	# Extract the Nutrient Database number and Get Nutrient report from another REST API call
	$Ndbno = ($result | ?{$_.choice -eq $Choice}).NutrientDBNo
	$Food = (Invoke-RestMethod -Uri "http://api.nal.usda.gov/ndb/reports/?ndbno=$ndbno&type=b&format=json&api_key=nPEalh5PismxDHfVfSJ0VhSAG3uma32bgqO2RtEs").Report.food
	cls
	# Display Nutrient report
	$Food.nutrients | ?{($_.value -as [double]) -gt 0} | select @{n='NutrientName';e={$_.Name}},`
	@{n='Group';e={$_.group}},`
	@{n='Value per 100g';e={$_.Value}},`
	@{n='Unit';e={$_.unit}},`
	@{n='Measures';e={$PV = $_;Foreach($Item in $pv.measures){"$([int]$Item.qty) "+$Item.Label+" = $($Item.value) "+$PV.unit}}}
	}
	Else
	{
	Write-Host "Couldn't find an item that match `"$Query`", please try another name." -ForegroundColor Red
	}
	}
	Get-Nutrient 'peanut butter' |ft -AutoSize
	Get-Nutrient 'raw apple' | ft -AutoSize
	Get-Nutrient 'coke' | ft -AutoSize

view raw Get-Nutrient.ps1 hosted with ❤ by GitHub

Have fun exploring this script and find some time to show-off to your friends 😉

Prateek Singh

Follow @SinghPrateik