PowerShell GMail: Lists the messages in the user's mailbox.

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Lists the messages in the user's mailbox.

Documentation: https://developers.google.com/gmail/api/v1/reference/users/messages/list

[Reflection.Assembly]::LoadFile("C:\myAssemblies\ChilkatDotNet2.dll")

$rest = New-Object Chilkat.Rest

#   Provide a previously obtained OAuth2 access token.
$oauth2 = New-Object Chilkat.OAuth2
$oauth2.AccessToken = "OAUTH2_ACCESS_TOKEN"
$rest.SetAuthOAuth2($oauth2)

$success = $rest.Connect("www.googleapis.com",443,$true,$true)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

$sbJson = New-Object Chilkat.StringBuilder
$success = $rest.FullRequestNoBodySb("GET","/gmail/v1/users/me/messages",$sbJson)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

if ($rest.ResponseStatusCode -ne 200) {
    $("Received error response code: " + $rest.ResponseStatusCode)
    $("Response body:")
    $($sbJson.GetAsString())
    exit
}

$json = New-Object Chilkat.JsonObject
$json.LoadSb($sbJson)

#  The following code parses the JSON response.
#  A sample JSON response is shown below the sample code.

$resultSizeEstimate = $json.IntOf("resultSizeEstimate")
$i = 0
$count_i = $json.SizeOfArray("messages")
while ($i -lt $count_i) {
    $json.I = $i
    $id = $json.StringOf("messages[i].id")
    $threadId = $json.StringOf("messages[i].threadId")
    $i = $i + 1
}

$("Example Completed.")

Sample JSON Response Body

{
  "messages": [
    {
      "id": "15fc237e79da4174",
      "threadId": "15fc237e79da4174"
    },
    {
      "id": "15fc23688c553739",
      "threadId": "15fc23688c553739"
    },
    {
      "id": "15fbd37d3a8f9950",
      "threadId": "15fbd37d3a8f9950"
    },
    {
      "id": "15fb5e49b822ac1d",
      "threadId": "15fb5e49b822ac1d"
    },
    {
      "id": "15fb5e49b7a0739b",
      "threadId": "15fb5e49b7a0739b"
    }
  ],
  "resultSizeEstimate": 5
}