Tcl 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

load ./chilkat.dll

set rest [new_CkRest]

#   Provide a previously obtained OAuth2 access token.
set oauth2 [new_CkOAuth2]

CkOAuth2_put_AccessToken $oauth2 "OAUTH2_ACCESS_TOKEN"
CkRest_SetAuthOAuth2 $rest $oauth2

set success [CkRest_Connect $rest "www.googleapis.com" 443 1 1]
if {[expr $success != 1]} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkRest $rest
    delete_CkOAuth2 $oauth2
    exit
}

set sbJson [new_CkStringBuilder]

set success [CkRest_FullRequestNoBodySb $rest "GET" "/gmail/v1/users/me/messages" $sbJson]
if {[expr $success != 1]} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkRest $rest
    delete_CkOAuth2 $oauth2
    delete_CkStringBuilder $sbJson
    exit
}

if {[expr [CkRest_ResponseStatusCode $rest] != 200]} then {
    puts "Received error response code: [CkRest_ResponseStatusCode $rest]"
    puts "Response body:"
    puts [CkStringBuilder_getAsString $sbJson]
    delete_CkRest $rest
    delete_CkOAuth2 $oauth2
    delete_CkStringBuilder $sbJson
    exit
}

set json [new_CkJsonObject]

CkJsonObject_LoadSb $json $sbJson

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

set resultSizeEstimate [CkJsonObject_IntOf $json "resultSizeEstimate"]
set i 0
set count_i [CkJsonObject_SizeOfArray $json "messages"]
while {[expr $i < $count_i]} {
    CkJsonObject_put_I $json $i
    set id [CkJsonObject_stringOf $json "messages[i].id"]
    set threadId [CkJsonObject_stringOf $json "messages[i].threadId"]
    set i [expr $i + 1]
}

puts "Example Completed."

delete_CkRest $rest
delete_CkOAuth2 $oauth2
delete_CkStringBuilder $sbJson
delete_CkJsonObject $json

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
}