PowerShell

QR Code Generator via api.qrserver.com REST API

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Demonstrates how to generate a QR code using the api.qrserver.com REST API service. PowerShell

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$http = New-Object Chilkat.Http

# Send the following GET request to get a binary response.
# The body of the binary response contains the image data for the QR code.
# https://api.qrserver.com/v1/create-qr-code/?data=[URL-encoded-text]&size=[pixels]x[pixels]

$queryParams = New-Object Chilkat.JsonObject
$queryParams.UpdateString("data","Hello World")
$queryParams.UpdateString("size","100x100")

# Get a PNG file..
# Possible formats are:
# png
# gif
# jpeg
# jpg
# svg
# eps
# Case matters.  Use lowercase.
$queryParams.UpdateString("format","png")

# Send the GET request to an endpoint.
# Chilkat will add the url-encoded query params passed in the JSON.
$resp = New-Object Chilkat.HttpResponse
$success = $http.HttpParams("GET","https://api.qrserver.com/v1/create-qr-code/",$queryParams,$resp)
if ($success -eq $false) {
    $($http.LastErrorText)
    exit
}

# Did it succeed?
if ($resp.StatusCode -ne 200) {
    # The response body, if anything, would not be the image data, but would likely be the error text (or HTML, or whatever...)
    $($resp.BodyStr)
    $("Response status = " + $resp.StatusCode)
    $("Failed.")
    exit
}

# Success if we get here..
# Save the binary body as the PNG file, or you can get the bytes of the PNG..
$success = $resp.SaveBodyBinary("c:/temp/qa_output/qr_code.png")

# Or get the bytes:
$bd = New-Object Chilkat.BinData
$resp.GetBodyBd($bd)
# Use the bytes in bd...
# See the online reference documentation for the function to access the bytes directly.

$("Success.")