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google.html
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<!DOCTYPE html>
<html>
<head>
<title>Gmail API Quickstart</title>
<meta charset="utf-8" />
</head>
<body>
<p>Gmail API Quickstart</p>
<!--Add buttons to initiate auth sequence and sign out-->
<button id="authorize_button" onclick="handleAuthClick()">Authorize</button>
<button id="signout_button" onclick="handleSignoutClick()">Sign Out</button>
<pre id="content" style="white-space: pre-wrap;"></pre>
<script type="text/javascript">
/* exported gapiLoaded */
/* exported gisLoaded */
/* exported handleAuthClick */
/* exported handleSignoutClick */
// TODO(developer): Set to client ID and API key from the Developer Console
const CLIENT_ID = '343083463515-40339r3j4u4skibh2rse0mj3jtqsfgsk.apps.googleusercontent.com';
const API_KEY = 'AIzaSyCwgHoouSj6djXwYAsu7FKUra8140oqDNA';
// Discovery doc URL for APIs used by the quickstart
const DISCOVERY_DOC = 'https://www.googleapis.com/discovery/v1/apis/gmail/v1/rest';
// Authorization scopes required by the API; multiple scopes can be
// included, separated by spaces.
const SCOPES = 'https://www.googleapis.com/auth/gmail.readonly';
let tokenClient;
let gapiInited = false;
let gisInited = false;
document.getElementById('authorize_button').style.visibility = 'hidden';
document.getElementById('signout_button').style.visibility = 'hidden';
/**
* Callback after api.js is loaded.
*/
function gapiLoaded() {
gapi.load('client', initializeGapiClient);
}
/**
* Callback after the API client is loaded. Loads the
* discovery doc to initialize the API.
*/
async function initializeGapiClient() {
await gapi.client.init({
apiKey: API_KEY,
discoveryDocs: [DISCOVERY_DOC],
});
gapiInited = true;
maybeEnableButtons();
}
/**
* Callback after Google Identity Services are loaded.
*/
function gisLoaded() {
tokenClient = google.accounts.oauth2.initTokenClient({
client_id: CLIENT_ID,
scope: SCOPES,
callback: '', // defined later
});
gisInited = true;
maybeEnableButtons();
}
/**
* Enables user interaction after all libraries are loaded.
*/
function maybeEnableButtons() {
if (gapiInited && gisInited) {
document.getElementById('authorize_button').style.visibility = 'visible';
}
}
/**
* Sign in the user upon button click.
*/
function handleAuthClick() {
tokenClient.callback = async (resp) => {
if (resp.error !== undefined) {
throw (resp);
}
document.getElementById('signout_button').style.visibility = 'visible';
document.getElementById('authorize_button').innerText = 'Refresh';
await listLabels();
};
if (gapi.client.getToken() === null) {
// Prompt the user to select a Google Account and ask for consent to share their data
// when establishing a new session.
tokenClient.requestAccessToken({prompt: 'consent'});
} else {
// Skip display of account chooser and consent dialog for an existing session.
tokenClient.requestAccessToken({prompt: ''});
}
}
/**
* Sign out the user upon button click.
*/
function handleSignoutClick() {
const token = gapi.client.getToken();
if (token !== null) {
google.accounts.oauth2.revoke(token.access_token);
gapi.client.setToken('');
document.getElementById('content').innerText = '';
document.getElementById('authorize_button').innerText = 'Authorize';
document.getElementById('signout_button').style.visibility = 'hidden';
}
}
/**
* Print all Labels in the authorized user's inbox. If no labels
* are found an appropriate message is printed.
*/
async function listLabels() {
let response;
try {
response = await gapi.client.gmail.users.labels.list({
'userId': 'me',
});
let emails = await gapi.client.gmail.users.messages.list({
'userId': 'me',
'maxResults': 25,
'q': 'in:inbox is:unread category:primary',
// 'labelIds': ['CATEGORY_PERSONAL']
});
for (let i = 0; i < emails.result.messages.length; i++) {
let message = emails.result.messages[i];
console.log(message.id);
let body = await gapi.client.gmail.users.messages.get({
'userId': 'me',
'id': message.id
});
console.log(body);
}
} catch (err) {
document.getElementById('content').innerText = err.message;
return;
}
const labels = response.result.labels;
if (!labels || labels.length == 0) {
document.getElementById('content').innerText = 'No labels found.';
return;
}
// Flatten to string to display
const output = labels.reduce(
(str, label) => `${str}${label.name}\n`,
'Labels:\n');
document.getElementById('content').innerText = output;
}
</script>
<script async defer src="https://apis.google.com/js/api.js" onload="gapiLoaded()"></script>
<script async defer src="https://accounts.google.com/gsi/client" onload="gisLoaded()"></script>
</body>
</html>