I have tried making a web application using Google Drive and Gmail APIs.
When I ask for Google Drive or Gmail permission, all works correctly, but when I try asking for both permissions , the program only asks for one of them (either Google Drive or Gmail).
This is the code which asks for Google Drive permissions, extracted from:https://developers.google.com/drive/api/v3/quickstart/js
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta charset="utf-8" />
</head>
<body>
<p></p>
<!--Add buttons to initiate auth sequence and sign out-->
<button id="authorize_button" style="display: none;">Authorize</button>
<button id="signout_button" style="display: none;">Sign Out</button>
<pre id="content" style="white-space: pre-wrap;"></pre>
<script type="text/javascript">
// Client ID and API key from the Developer Console
var CLIENT_ID = '<YOUR_CLIENT_ID>';
var API_KEY = '<YOUR_API_KEY>';
// Array of API discovery doc URLs for APIs used by the quickstart
var DISCOVERY_DOCS = ["https://www.googleapis.com/discovery/v1/apis/drive/v3/rest"];
// Authorization scopes required by the API; multiple scopes can be
// included, separated by spaces.
var SCOPES = 'https://www.googleapis.com/auth/drive.metadata.readonly';
var authorizeButton = document.getElementById('authorize_button');
var signoutButton = document.getElementById('signout_button');
/**
* On load, called to load the auth2 library and API client library.
*/
function handleClientLoad() {
gapi.load('client:auth2', initClient);
}
/**
* Initializes the API client library and sets up sign-in state
* listeners.
*/
function initClient() {
gapi.client.init({
apiKey: API_KEY,
clientId: CLIENT_ID,
discoveryDocs: DISCOVERY_DOCS,
scope: SCOPES
}).then(function () {
// Listen for sign-in state changes.
gapi.auth2.getAuthInstance().isSignedIn.listen(updateSigninStatus);
// Handle the initial sign-in state.
updateSigninStatus(gapi.auth2.getAuthInstance().isSignedIn.get());
authorizeButton.onclick = handleAuthClick;
signoutButton.onclick = handleSignoutClick;
}, function(error) {
appendPre(JSON.stringify(error, null, 2));
});
}
/**
* Called when the signed in status changes, to update the UI
* appropriately. After a sign-in, the API is called.
*/
function updateSigninStatus(isSignedIn) {
if (isSignedIn) {
authorizeButton.style.display = 'none';
signoutButton.style.display = 'block';
listFiles();
} else {
authorizeButton.style.display = 'block';
signoutButton.style.display = 'none';
}
}
/**
* Sign in the user upon button click.
*/
function handleAuthClick(event) {
gapi.auth2.getAuthInstance().signIn();
}
/**
* Sign out the user upon button click.
*/
function handleSignoutClick(event) {
gapi.auth2.getAuthInstance().signOut();
}
/**
* Append a pre element to the body containing the given message
* as its text node. Used to display the results of the API call.
*
* @param {string} message Text to be placed in pre element.
*/
function appendPre(message) {
var pre = document.getElementById('content');
var textContent = document.createTextNode(message + '\n');
pre.appendChild(textContent);
}
/**
* Print files.
*/
function listFiles() {
gapi.client.drive.files.list({
'pageSize': 10,
'fields': "nextPageToken, files(id, name)"
}).then(function(response) {
appendPre('Files:');
var files = response.result.files;
if (files && files.length > 0) {
for (var i = 0; i < files.length; i++) {
var file = files[i];
appendPre(file.name + ' (' + file.id + ')');
}
} else {
appendPre('No files found.');
}
});
}
</script>
<script async defer src="https://apis.google.com/js/api.js"
onload="this.onload=function(){};handleClientLoad()"
onreadystatechange="if (this.readyState === 'complete') this.onload()">
</script>
</body>
</html>
And this is the code which asks for Gmail permissions, extracted from:https://developers.google.com/gmail/api/quickstart/js
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta charset="utf-8" />
</head>
<body>
<p></p>
<!--Add buttons to initiate auth sequence and sign out-->
<button id="authorize_button" style="display: none;">Authorize</button>
<button id="signout_button" style="display: none;">Sign Out</button>
<pre id="content" style="white-space: pre-wrap;"></pre>
<script type="text/javascript">
// Client ID and API key from the Developer Console
var CLIENT_ID = '<YOUR_CLIENT_ID>';
var API_KEY = '<YOUR_API_KEY>';
// Array of API discovery doc URLs for APIs used by the quickstart
var DISCOVERY_DOCS = ["https://www.googleapis.com/discovery/v1/apis/gmail/v1/rest"];
// Authorization scopes required by the API; multiple scopes can be
// included, separated by spaces.
var SCOPES = 'https://www.googleapis.com/auth/gmail.readonly';
var authorizeButton = document.getElementById('authorize_button');
var signoutButton = document.getElementById('signout_button');
/**
* On load, called to load the auth2 library and API client library.
*/
function handleClientLoad() {
gapi.load('client:auth2', initClient);
}
/**
* Initializes the API client library and sets up sign-in state
* listeners.
*/
function initClient() {
gapi.client.init({
apiKey: API_KEY,
clientId: CLIENT_ID,
discoveryDocs: DISCOVERY_DOCS,
scope: SCOPES
}).then(function () {
// Listen for sign-in state changes.
gapi.auth2.getAuthInstance().isSignedIn.listen(updateSigninStatus);
// Handle the initial sign-in state.
updateSigninStatus(gapi.auth2.getAuthInstance().isSignedIn.get());
authorizeButton.onclick = handleAuthClick;
signoutButton.onclick = handleSignoutClick;
}, function(error) {
appendPre(JSON.stringify(error, null, 2));
});
}
/**
* Called when the signed in status changes, to update the UI
* appropriately. After a sign-in, the API is called.
*/
function updateSigninStatus(isSignedIn) {
if (isSignedIn) {
authorizeButton.style.display = 'none';
signoutButton.style.display = 'block';
listLabels();
} else {
authorizeButton.style.display = 'block';
signoutButton.style.display = 'none';
}
}
/**
* Sign in the user upon button click.
*/
function handleAuthClick(event) {
gapi.auth2.getAuthInstance().signIn();
}
/**
* Sign out the user upon button click.
*/
function handleSignoutClick(event) {
gapi.auth2.getAuthInstance().signOut();
}
/**
* Append a pre element to the body containing the given message
* as its text node. Used to display the results of the API call.
*
* @param {string} message Text to be placed in pre element.
*/
function appendPre(message) {
var pre = document.getElementById('content');
var textContent = document.createTextNode(message + '\n');
pre.appendChild(textContent);
}
/**
* Print all Labels in the authorized user's inbox. If no labels
* are found an appropriate message is printed.
*/
function listLabels() {
gapi.client.gmail.users.labels.list({
'userId': 'me'
}).then(function(response) {
var labels = response.result.labels;
appendPre('Labels:');
if (labels && labels.length > 0) {
for (i = 0; i < labels.length; i++) {
var label = labels[i];
appendPre(label.name)
}
} else {
appendPre('No Labels found.');
}
});
}
</script>
<script async defer src="https://apis.google.com/js/api.js"
onload="this.onload=function(){};handleClientLoad()"
onreadystatechange="if (this.readyState === 'complete') this.onload()">
</script>
</body>
</html>
I have tried different ways to ask for both permissions, but no one of them has worked. How do I ask for Gmail and Google Drive permissions at the same time?
PD: sorry for my English and for making a very long question :(
If you want to initialize a gapi client that it capable of performing both Gmail and Drive requests, you need to merge the respective discovery docs and scopes.
As stated in the comments of the code samples:
// Array of API discovery doc URLs for APIs used by the quickstart
and
// Authorization scopes required by the API; multiple scopes can be // included, separated by spaces.
This means:
var DISCOVERY_DOCS = ["https://www.googleapis.com/discovery/v1/apis/drive/v3/rest", "https://sheets.googleapis.com/$discovery/rest?version=v4"];
and
var SCOPES = "https://www.googleapis.com/auth/drive.metadata.readonly https://www.googleapis.com/auth/spreadsheets.readonly";
Also, if the signIn is successful, either the function listFiles(); or listMajors(); is called, but to combine both functionalities, you probably want to call both functions (or merge them into one).
So in summary:
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta charset="utf-8" />
</head>
<body>
<p></p>
<!--Add buttons to initiate auth sequence and sign out-->
<button id="authorize_button" style="display: none;">Authorize</button>
<button id="signout_button" style="display: none;">Sign Out</button>
<pre id="content" style="white-space: pre-wrap;"></pre>
<script type="text/javascript">
// Client ID and API key from the Developer Console
var CLIENT_ID = '199656296815-7rivr6cr4oj1fhprdptrq9evi6gvrrji.apps.googleusercontent.com';
var API_KEY = 'AIzaSyCpC-SyaoUN95t8gANPgPQptEW-7B57aCI';
// Array of API discovery doc URLs for APIs used by the quickstart
var DISCOVERY_DOCS = ["https://www.googleapis.com/discovery/v1/apis/drive/v3/rest", "https://sheets.googleapis.com/$discovery/rest?version=v4"];
// Authorization scopes required by the API; multiple scopes can be
// included, separated by spaces.
var SCOPES = "https://www.googleapis.com/auth/drive.metadata.readonly https://www.googleapis.com/auth/spreadsheets.readonly";
var authorizeButton = document.getElementById('authorize_button');
var signoutButton = document.getElementById('signout_button');
/**
* On load, called to load the auth2 library and API client library.
*/
function handleClientLoad() {
gapi.load('client:auth2', initClient);
}
/**
* Initializes the API client library and sets up sign-in state
* listeners.
*/
function initClient() {
gapi.client.init({
apiKey: API_KEY,
clientId: CLIENT_ID,
discoveryDocs: DISCOVERY_DOCS,
scope: SCOPES
}).then(function () {
// Listen for sign-in state changes.
gapi.auth2.getAuthInstance().isSignedIn.listen(updateSigninStatus);
// Handle the initial sign-in state.
updateSigninStatus(gapi.auth2.getAuthInstance().isSignedIn.get());
authorizeButton.onclick = handleAuthClick;
signoutButton.onclick = handleSignoutClick;
}, function(error) {
appendPre(JSON.stringify(error, null, 2));
});
}
/**
* Called when the signed in status changes, to update the UI
* appropriately. After a sign-in, the API is called.
*/
function updateSigninStatus(isSignedIn) {
if (isSignedIn) {
authorizeButton.style.display = 'none';
signoutButton.style.display = 'block';
listFiles();
listMajors();
} else {
authorizeButton.style.display = 'block';
signoutButton.style.display = 'none';
}
}
/**
* Sign in the user upon button click.
*/
function handleAuthClick(event) {
gapi.auth2.getAuthInstance().signIn();
}
/**
* Sign out the user upon button click.
*/
function handleSignoutClick(event) {
gapi.auth2.getAuthInstance().signOut();
}
/**
* Append a pre element to the body containing the given message
* as its text node. Used to display the results of the API call.
*
* @param {string} message Text to be placed in pre element.
*/
function appendPre(message) {
var pre = document.getElementById('content');
var textContent = document.createTextNode(message + '\n');
pre.appendChild(textContent);
}
/**
* Print files.
*/
function listFiles() {
gapi.client.drive.files.list({
'pageSize': 10,
'fields': "nextPageToken, files(id, name)"
}).then(function(response) {
appendPre('Files:');
var files = response.result.files;
if (files && files.length > 0) {
for (var i = 0; i < files.length; i++) {
var file = files[i];
appendPre(file.name + ' (' + file.id + ')');
}
} else {
appendPre('No files found.');
}
});
}
function listMajors() {
gapi.client.sheets.spreadsheets.values.get({
spreadsheetId: '1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms',
range: 'Class Data!A2:E',
}).then(function(response) {
var range = response.result;
if (range.values.length > 0) {
appendPre('Name, Major:');
for (i = 0; i < range.values.length; i++) {
var row = range.values[i];
// Print columns A and E, which correspond to indices 0 and 4.
appendPre(row[0] + ', ' + row[4]);
}
} else {
appendPre('No data found.');
}
}, function(response) {
appendPre('Error: ' + response.result.error.message);
});
}
</script>
<script async defer src="https://apis.google.com/js/api.js"
onload="this.onload=function(){};handleClientLoad()"
onreadystatechange="if (this.readyState === 'complete') this.onload()">
</script>
</body>
</html>