(PowerShell) GeoOp OAuth2 Authorisation Code Grant (Public App)

See more OAuth2 Examples

Note: This example requires Chilkat v10.1.2 or greater.

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

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

$oauth2 = New-Object Chilkat.OAuth2

# This should match the Site URL configured for your GeoOp (non-Server) Application, such as "http://localhost:3017/"
$oauth2.ListenPort = 3017

$oauth2.AuthorizationEndpoint = "https://login.geoop.com/oauth2/code"
$oauth2.TokenEndpoint = "https://login.geoop.com/oauth2/token"

# Replace the client ID with an actual value.
$oauth2.ClientId = "GEOOP-APPLICATION-ID"
# The ClientSecret should remain empty for a GeoOp public application
$oauth2.ClientSecret = ""

# We need a few special settings for GeoOp
$oauth2.Scope = "default"
$oauth2.CodeChallenge = $false
# Setting LocalHost equal to "none" prevents the "redirect_uri" query param from being sent in the initial HTTP request.
# Note: The GeoOp Application should still have a redirect URL specified as "http://localhost:3017/", where the port
# number matches the ListenPort above.
$oauth2.LocalHost = "none"

# Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
$url = $oauth2.StartAuth()
if ($oauth2.LastMethodSuccess -ne $true) {
    $($oauth2.LastErrorText)
    exit
}

# Launch the default browser on the system and navigate to the url.
# The LaunchBrowser method was added in Chilkat v10.1.2.
$success = $oauth2.LaunchBrowser($url)
if ($success -eq $false) {
    $($oauth2.LastErrorText)
    exit
}

# Wait for the user to approve or deny authorization in the browser.
$numMsWaited = 0
while (($numMsWaited -lt 90000) -and ($oauth2.AuthFlowState -lt 3)) {
    $oauth2.SleepMs(100)
    $numMsWaited = $numMsWaited + 100
}

# If the browser does not respond within the specified time, AuthFlowState will be:
# 
# 1: Waiting for Redirect – The OAuth2 background thread is waiting for the browser's redirect request.
# 2: Waiting for Final Response – The thread is awaiting the final access token response.
# In either case, cancel the background task initiated by StartAuth.

if ($oauth2.AuthFlowState -lt 3) {
    $oauth2.Cancel()
    $("No response from the browser!")
    exit
}

# Check AuthFlowState to determine if authorization was granted, denied, or failed:
# 
# 3: Success – OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
# 4: Access Denied – OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
# 5: Failure – OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

if ($oauth2.AuthFlowState -eq 5) {
    $("OAuth2 failed to complete.")
    $($oauth2.FailureInfo)
    exit
}

if ($oauth2.AuthFlowState -eq 4) {
    $("OAuth2 authorization was denied.")
    $($oauth2.AccessTokenResponse)
    exit
}

if ($oauth2.AuthFlowState -ne 3) {
    $("Unexpected AuthFlowState:" + $oauth2.AuthFlowState)
    exit
}

$("OAuth2 authorization granted!")
$("Access Token = " + $oauth2.AccessToken)

# Save the entire JSON response, which includes the access token, for future calls.
# The JSON AccessTokenResponse looks like this:
# {"access_token":"e6dqdG....mzjpT04w==","token_type":"Bearer","expires_in":2592000,"owner_id":984236}

$fac = New-Object Chilkat.FileAccess
$fac.WriteEntireTextFile("qa_data/tokens/geoop.json",$oauth2.AccessTokenResponse,"utf-8",$false)

$("Success.")