我想创建一个基于从googlegmailapi导出的报告工具。因此，我想做的主要事情是检索，从我在gmail中的帐户中按标签获取所有收件箱消息，并在我的自定义ehtml文档中以自定义结构显示它。我想用php或javascript来实现。我对谷歌API做了一些研究，但不明白如何开始工作，从哪里开始？
我认为如果能从这个url 中获得JSON数据会很好
标签
消息
如何使用javascript，我需要包含哪些js-libs，如何使用googleApi？我以前从未使用过它，所以有人能给我举一些简单的完整例子吗？
下面是一个完整的示例，展示了如何加载Google API Javascript客户端，加载gmail API，并调用两个API方法来列出标签和收件箱消息。每个API调用的Gmai-lAPI文档中都有很多javascript代码片段，因此您可以将下面的代码结构与任何特定的代码片段结合起来，以实现您想要的目标。
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
</head>
<body>
<!--Add a button for the user to click to initiate auth sequence -->
<button id="authorize-button" style="visibility: hidden">Authorize</button>
<div id="content"></div>
<p>Test gmail API.</p>
<script type="text/javascript">
// Enter a client ID for a web application from the Google Developer Console.
// In your Developer Console project, add a JavaScript origin that corresponds to the domain
// where you will be running the script.
var clientId = 'YOUR_CLIENT_ID_HERE';
// To enter one or more authentication scopes, refer to the documentation for the API.
var scopes = 'https://www.googleapis.com/auth/gmail.readonly';
// Use a button to handle authentication the first time.
function handleClientLoad() {
window.setTimeout(checkAuth,1);
}
function checkAuth() {
gapi.auth.authorize({client_id: clientId, scope: scopes, immediate: true}, handleAuthResult);
}
function handleAuthResult(authResult) {
var authorizeButton = document.getElementById('authorize-button');
if (authResult && !authResult.error) {
authorizeButton.style.visibility = 'hidden';
makeApiCall();
} else {
authorizeButton.style.visibility = '';
authorizeButton.onclick = handleAuthClick;
}
}
function handleAuthClick(event) {
gapi.auth.authorize({client_id: clientId, scope: scopes, immediate: false}, handleAuthResult);
return false;
}
// Load the API and make an API call. Display the results on the screen.
function makeApiCall() {
gapi.client.load('gmail', 'v1', function() {
listLabels();
listMessages();
});
}
/**
* Get all the Labels in the authenticated user's mailbox.
*/
function listLabels() {
var userId = "me";
var request = gapi.client.gmail.users.labels.list({
'userId': userId
});
request.execute(function(resp) {
var labels = resp.labels;
var output = ("<br>Query returned " + labels.length + " labels:<br>");
for(var i = 0; i < labels.length; i++) {
output += labels[i].name + "<br>";
}
document.getElementById("content").innerHTML += output;
});
}
/**
* Get all the message IDs in the authenticated user's inbox.
*/
function listMessages() {
var userId = "me";
var request = gapi.client.gmail.users.messages.list({
'userId': userId
});
request.execute(function(resp) {
var messages = resp.messages;
var output = "<br>Query returned " + messages.length + " messages:<br>";
for(var i = 0; i < messages.length; i++) {
output += messages[i].id + "<br>";
}
document.getElementById("content").innerHTML += output;
});
}
</script>
<script src="https://apis.google.com/js/client.js?onload=handleClientLoad"></script>
</body>
</html>