Lua

Get a List of Message IDs in GMail User's Mailbox

See more GMail REST API Examples

Demonstrates how to get a list of message IDs in a GMail mailbox. The "userId" can be either the user's email address or the special value "me" to indicate the authenticated user. Lua

local chilkat = require("chilkat")

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

local http = chilkat.Http.new()

http.auth_token = "ACCESS_TOKEN"

http.accept = "application/json"

local resp = chilkat.HttpResponse.new()
local success = http:http_no_body("GET", "https://www.googleapis.com/gmail/v1/users/userId/messages", resp)
if not success then
    print(http.last_error_text)
    return
end

print("Response Status Code: " .. resp.status_code)

local jsonResponse = chilkat.JsonObject.new()
jsonResponse:load(resp.body_str)
jsonResponse.emit_compact = false
print(jsonResponse:emit())

if resp.status_code ~= 200 then
    print("Failed.")
    return
end

-- {
--   "messages": [
--     users.messages Resource
--   ],
--   "nextPageToken": string,
--   "resultSizeEstimate": unsigned integer
-- }

local id = ""
local threadId = ""

local resultSizeEstimate = jsonResponse:int_of("resultSizeEstimate")
local i = 0
local count_i = jsonResponse:size_of_array("messages")
while i < count_i do
    jsonResponse.i = i
    id = jsonResponse:string_of("messages[i].id")
    threadId = jsonResponse:string_of("messages[i].threadId")
    i = i + 1
end