I want to get the access token from Google. The Google API says that to get the access token, send the code and other parameters to token generating page, and the response will be a JSON Object like :
{
"access_token" : "ya29.AHES6ZTtm7SuokEB-RGtbBty9IIlNiP9-eNMMQKtXdMP3sfjL1Fc",
"token_type" : "Bearer",
"expires_in" : 3600,
"refresh_token" : "1/HKSmLFXzqP0leUihZp2xUt3-5wkU7Gmu2Os_eBnzw74"
}
However, I'm not receiving the refresh token. The response in my case is:
{
"access_token" : "ya29.sddsdsdsdsds_h9v_nF0IR7XcwDK8XFB2EbvtxmgvB-4oZ8oU",
"token_type" : "Bearer",
"expires_in" : 3600
}
The refresh_token is only provided on the first authorization from the user. Subsequent authorizations, such as the kind you make while testing an OAuth2 integration, will not return the refresh_token again. :)
Go to the page showing Apps with access to your account:
https://myaccount.google.com/u/0/permissions.
Under the Third-party apps menu, choose your app.
Click Remove access and then click Ok to confirm
The next OAuth2 request you make will return a refresh_token (providing that it also includes the 'access_type=offline' query parameter.
Alternatively, you can add the query parameters prompt=consent&access_type=offline to the OAuth redirect (see Google's OAuth 2.0 for Web Server Applications page).
This will prompt the user to authorize the application again and will always return a refresh_token.
In order to get the refresh token you have to add both approval_prompt=force and access_type="offline"
If you are using the java client provided by Google it will look like this:
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, getClientSecrets(), scopes)
.build();
AuthorizationCodeRequestUrl authorizationUrl =
flow.newAuthorizationUrl().setRedirectUri(callBackUrl)
.setApprovalPrompt("force")
.setAccessType("offline");
I'd like to add a bit more info on this subject for those frustrated souls who encounter this issue. The key to getting a refresh token for an offline app is to make sure you are presenting the consent screen. The refresh_token is only returned immediately after a user grants authorization by clicking "Allow".
The issue came up for me (and I suspect many others) after I'd been doing some testing in a development environment and therefore already authorized my application on a given account. I then moved to production and attempted to authenticate again using an account which was already authorized. In this case, the consent screen will not come up again and the api will not return a new refresh token. To make this work, you must force the consent screen to appear again by either:
prompt=consent
or
approval_prompt=force
Either one will work but you should not use both. As of 2021, I'd recommend using prompt=consent since it replaces the older parameter approval_prompt and in some api versions, the latter was actually broken (https://github.com/googleapis/oauth2client/issues/453). Also, prompt is a space delimited list so you can set it as prompt=select_account%20consent if you want both.
Of course you also need:
access_type=offline
Additional reading:
Docs: https://developers.google.com/identity/protocols/oauth2/web-server#request-parameter-prompt
Docs: https://developers.google.com/identity/protocols/oauth2/openid-connect#re-consent
Discussion about this issue: https://github.com/googleapis/google-api-python-client/issues/213
I searched a long night and this is doing the trick:
Modified user-example.php from admin-sdk
$client->setAccessType('offline');
$client->setApprovalPrompt('force');
$authUrl = $client->createAuthUrl();
echo "<a class='login' href='" . $authUrl . "'>Connect Me!</a>";
then you get the code at the redirect url
and the authenticating with the code and getting the refresh token
$client()->authenticate($_GET['code']);
echo $client()->getRefreshToken();
You should store it now ;)
When your accesskey times out just do
$client->refreshToken($theRefreshTokenYouHadStored);
This has caused me some confusion so I thought I'd share what I've come to learn the hard way:
When you request access using the access_type=offline and approval_prompt=force parameters you should receive both an access token and a refresh token. The access token expires soon after you receive it and you will need to refresh it.
You correctly made the request to get a new access token and received the response that has your new access token. I was also confused by the fact that I didn't get a new refresh token. However, this is how it is meant to be since you can use the same refresh token over and over again.
I think some of the other answers assume that you wanted to get yourself a new refresh token for some reason and sugggested that you re-authorize the user but in actual fact, you don't need to since the refresh token you have will work until revoked by the user.
Rich Sutton's answer finally worked for me, after I realized that adding access_type=offline is done on the front end client's request for an authorization code, not the back end request that exchanges that code for an access_token. I've added a comment to his answer and this link at Google for more info about refreshing tokens.
P.S. If you are using Satellizer, here is how to add that option to the $authProvider.google in AngularJS.
In order to get the refresh_token you need to include access_type=offline in the OAuth request URL. When a user authenticates for the first time you will get back a non-nil refresh_token as well as an access_token that expires.
If you have a situation where a user might re-authenticate an account you already have an authentication token for (like #SsjCosty mentions above), you need to get back information from Google on which account the token is for. To do that, add profile to your scopes. Using the OAuth2 Ruby gem, your final request might look something like this:
client = OAuth2::Client.new(
ENV["GOOGLE_CLIENT_ID"],
ENV["GOOGLE_CLIENT_SECRET"],
authorize_url: "https://accounts.google.com/o/oauth2/auth",
token_url: "https://accounts.google.com/o/oauth2/token"
)
# Configure authorization url
client.authorize_url(
scope: "https://www.googleapis.com/auth/analytics.readonly profile",
redirect_uri: callback_url,
access_type: "offline",
prompt: "select_account"
)
Note the scope has two space-delimited entries, one for read-only access to Google Analytics, and the other is just profile, which is an OpenID Connect standard.
This will result in Google providing an additional attribute called id_token in the get_token response. To get information out of the id_token, check out this page in the Google docs. There are a handful of Google-provided libraries that will validate and “decode” this for you (I used the Ruby google-id-token gem). Once you get it parsed, the sub parameter is effectively the unique Google account ID.
Worth noting, if you change the scope, you'll get back a refresh token again for users that have already authenticated with the original scope. This is useful if, say, you have a bunch of users already and don't want to make them all un-auth the app in Google.
Oh, and one final note: you don't need prompt=select_account, but it's useful if you have a situation where your users might want to authenticate with more than one Google account (i.e., you're not using this for sign-in / authentication).
1. How to get 'refresh_token' ?
Solution: access_type='offline' option should be used when generating authURL.
source : Using OAuth 2.0 for Web Server Applications
2. But even with 'access_type=offline', I am not getting the 'refresh_token' ?
Solution: Please note that you will get it only on the first request, so if you are storing it somewhere and there is a provision to overwrite this in your code when getting new access_token after previous expires, then make sure not to overwrite this value.
From Google Auth Doc : (this value = access_type)
This value instructs the Google authorization server to return a
refresh token and an access token the first time that your application
exchanges an authorization code for tokens.
If you need 'refresh_token' again, then you need to remove access for your app as by following the steps written in Rich Sutton's answer.
I'm using nodejs client for access to private data
The solution was add the promp property with value consent to the settings object in oAuth2Client.generateAuthUrl function.
Here is my code:
const getNewToken = (oAuth2Client, callback) => {
const authUrl = oAuth2Client.generateAuthUrl({
access_type: 'offline',
prompt: 'consent',
scope: SCOPES,
})
console.log('Authorize this app by visiting this url:', authUrl)
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
})
rl.question('Enter the code from that page here: ', (code) => {
rl.close()
oAuth2Client.getToken(code, (err, token) => {
if (err) return console.error('Error while trying to retrieve access token', err)
oAuth2Client.setCredentials(token)
// Store the token to disk for later program executions
fs.writeFile(TOKEN_PATH, JSON.stringify(token), (err) => {
if (err) return console.error(err)
console.log('Token stored to', TOKEN_PATH)
})
callback(oAuth2Client)
})
})
}
You can use the online parameters extractor to get the code for generate your token:
Online parameters extractor
Here is the complete code from google official docs:
https://developers.google.com/sheets/api/quickstart/nodejs
I hope the information is useful
Setting this will cause the refresh token to be sent every time:
$client->setApprovalPrompt('force');
an example is given below (php):
$client = new Google_Client();
$client->setClientId($client_id);
$client->setClientSecret($client_secret);
$client->setRedirectUri($redirect_uri);
$client->addScope("email");
$client->addScope("profile");
$client->setAccessType('offline');
$client->setApprovalPrompt('force');
For me I was trying out CalendarSampleServlet provided by Google. After 1 hour the access_key times out and there is a redirect to a 401 page. I tried all the above options but they didn't work. Finally upon checking the source code for 'AbstractAuthorizationCodeServlet', I could see that redirection would be disabled if credentials are present, but ideally it should have checked for refresh token!=null. I added below code to CalendarSampleServlet and it worked after that. Great relief after so many hours of frustration . Thank God.
if (credential.getRefreshToken() == null) {
AuthorizationCodeRequestUrl authorizationUrl = authFlow.newAuthorizationUrl();
authorizationUrl.setRedirectUri(getRedirectUri(req));
onAuthorization(req, resp, authorizationUrl);
credential = null;
}
Using offline access and prompt:consent worked well to me:
auth2 = gapi.auth2.init({
client_id: '{cliend_id}'
});
auth2.grantOfflineAccess({prompt:'consent'}).then(signInCallback);
In order to get new refresh_token each time on authentication the type of OAuth 2.0 credentials created in the dashboard should be "Other". Also as mentioned above the access_type='offline' option should be used when generating the authURL.
When using credentials with type "Web application" no combination of prompt/approval_prompt variables will work - you will still get the refresh_token only on the first request.
To get a refresh token using postman, here is an example of the configurations
Expected Response
now google had refused those parameters in my request (access_type, prompt)... :( and there is no "Revoke Access" button at all. I'm frustrating because of getting back my refresh_token lol
UPDATE:
I found the answer in here :D you can get back the refresh token by a request
https://developers.google.com/identity/protocols/OAuth2WebServer
curl -H "Content-type:application/x-www-form-urlencoded" \
https://accounts.google.com/o/oauth2/revoke?token={token}
The token can be an access token or a refresh token. If the token is an access token and it has a corresponding refresh token, the refresh token will also be revoked.
If the revocation is successfully processed, then the status code of the response is 200. For error conditions, a status code 400 is returned along with an error code.
#!/usr/bin/env perl
use strict;
use warnings;
use 5.010_000;
use utf8;
binmode STDOUT, ":encoding(utf8)";
use Text::CSV_XS;
use FindBin;
use lib $FindBin::Bin . '/../lib';
use Net::Google::Spreadsheets::V4;
use Net::Google::DataAPI::Auth::OAuth2;
use lib 'lib';
use Term::Prompt;
use Net::Google::DataAPI::Auth::OAuth2;
use Net::Google::Spreadsheets;
use Data::Printer ;
my $oauth2 = Net::Google::DataAPI::Auth::OAuth2->new(
client_id => $ENV{CLIENT_ID},
client_secret => $ENV{CLIENT_SECRET},
scope => ['https://www.googleapis.com/auth/spreadsheets'],
);
my $url = $oauth2->authorize_url();
# system("open '$url'");
print "go to the following url with your browser \n" ;
print "$url\n" ;
my $code = prompt('x', 'paste code: ', '', '');
my $objToken = $oauth2->get_access_token($code);
my $refresh_token = $objToken->refresh_token() ;
print "my refresh token is : \n" ;
# debug p($refresh_token ) ;
p ( $objToken ) ;
my $gs = Net::Google::Spreadsheets::V4->new(
client_id => $ENV{CLIENT_ID}
, client_secret => $ENV{CLIENT_SECRET}
, refresh_token => $refresh_token
, spreadsheet_id => '1hGNULaWpYwtnMDDPPkZT73zLGDUgv5blwJtK7hAiVIU'
);
my($content, $res);
my $title = 'My foobar sheet';
my $sheet = $gs->get_sheet(title => $title);
# create a sheet if does not exit
unless ($sheet) {
($content, $res) = $gs->request(
POST => ':batchUpdate',
{
requests => [
{
addSheet => {
properties => {
title => $title,
index => 0,
},
},
},
],
},
);
$sheet = $content->{replies}[0]{addSheet};
}
my $sheet_prop = $sheet->{properties};
# clear all cells
$gs->clear_sheet(sheet_id => $sheet_prop->{sheetId});
# import data
my #requests = ();
my $idx = 0;
my #rows = (
[qw(name age favorite)], # header
[qw(tarou 31 curry)],
[qw(jirou 18 gyoza)],
[qw(saburou 27 ramen)],
);
for my $row (#rows) {
push #requests, {
pasteData => {
coordinate => {
sheetId => $sheet_prop->{sheetId},
rowIndex => $idx++,
columnIndex => 0,
},
data => $gs->to_csv(#$row),
type => 'PASTE_NORMAL',
delimiter => ',',
},
};
}
# format a header row
push #requests, {
repeatCell => {
range => {
sheetId => $sheet_prop->{sheetId},
startRowIndex => 0,
endRowIndex => 1,
},
cell => {
userEnteredFormat => {
backgroundColor => {
red => 0.0,
green => 0.0,
blue => 0.0,
},
horizontalAlignment => 'CENTER',
textFormat => {
foregroundColor => {
red => 1.0,
green => 1.0,
blue => 1.0
},
bold => \1,
},
},
},
fields => 'userEnteredFormat(backgroundColor,textFormat,horizontalAlignment)',
},
};
($content, $res) = $gs->request(
POST => ':batchUpdate',
{
requests => \#requests,
},
);
exit;
#Google Sheets API, v4
# Scopes
# https://www.googleapis.com/auth/drive View and manage the files in your Google D# # i# rive
# https://www.googleapis.com/auth/drive.file View and manage Google Drive files and folders that you have opened or created with this app
# https://www.googleapis.com/auth/drive.readonly View the files in your Google Drive
# https://www.googleapis.com/auth/spreadsheets View and manage your spreadsheets in Google Drive
# https://www.googleapis.com/auth/spreadsheets.readonly View your Google Spreadsheets
My solution was a bit weird..i tried every solution i found on internet and nothing. Surprisely this worked: delete the credentials.json, refresh, vinculate your app in your account again. The new credentials.json file will have the refresh token. Backup this file somewhere.
Then keep using your app until the refresh token error comes again. Delete the crendetials.json file that now is only with an error message (this hapenned in my case), then paste you old credentials file in the folder, its done!
Its been 1 week since ive done this and had no more problems.
Adding access_type=offline to the authorisation Google authorisation URL did the trick for me. I am using Java and Spring framework.
This is the code that creates the client registration:
return CommonOAuth2Provider.GOOGLE
.getBuilder(client)
.scope("openid", "profile", "email", "https://www.googleapis.com/auth/gmail.send")
.authorizationGrantType(AuthorizationGrantType.AUTHORIZATION_CODE)
.authorizationUri("https://accounts.google.com/o/oauth2/v2/auth?access_type=offline")
.clientId(clientId)
.redirectUriTemplate("{baseUrl}/{action}/oauth2/code/{registrationId}")
.clientSecret(clientSecret)
.build();
The important part here is the authorization URI, to which ?access_type=offline is appended.
I'm trying to add a place using the google places API.
The API IS enabled and the API key is valid. Here is my code:
$url = "https://maps.googleapis.com/maps/api/place/add/json?key=MYKEY";
$content = json_encode('{
"location": {
"lat": 55.9868532,
"lng": -4.5780577
},
"accuracy": 50,
"name": "Home Made Pizza",
"types": ["other"],
"website": "http://example.com",
"language": "en-AU"
}');
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER,
array("Content-type: application/json"));
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $content);
$json_response = curl_exec($curl);
$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if ( $status != 201 ) {
die("response $json_response");
};
curl_close($curl);
$response = json_decode($json_response);
The response I am getting is
response { "status" : "REQUEST_DENIED" }
Help :-)
Based from this thread, make sure that you have enabled your API in the Console.
You are using http(s) for calling Google API, is your html also hosted under http(s). If not try changing google url to http.
Otherwise every thing else kinda looks ok so that makes me think you might wanna check your api console again, go to SERVICES and check if your 'Places API' is turned ON.
You can also try changing the Port address to 443 to get response from Places API
Here are some links which might also help:
Google Places API - REQUEST_DENIED
PHP: Google Places API return REQUEST_DENIED
The problem here was that I was using "json_encode" on json.
I did not need to encode it and this was throwing an error.
Morale of the story, don't Json_encode Json.
This question already has answers here:
Google GCM server returns Unauthorized Error 401
(14 answers)
Closed 6 years ago.
CURL --header "Authorization: key=XXXXXXXXX" --header "Content-Type: application/json" https://android.googleapis.com/gcm/send -d "{\"registration_ids\":[\"XXXXXXXX\"]}"
this is my request,
im trying to send this from my cmd,
with the api key i created in google console with my endpoint as registration_ids.
but this is what i get :
<HTML>
<HEAD>
<TITLE>Unauthorized</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<H1>Unauthorized</H1>
<H2>Error 401</H2>
</BODY>
</HTML>
any ideas ?
thx :)
Navigate to the https://console.developers.google.com/apis/credentials?project=<project-name>
then pick the server key you created. At the bottom of the page you could add whitelisted IP's/ranges.
You're getting 401 Unauthorized because GCM is only accepting requests from HTTPS-based hosts, which your local console is not.
The easiest way to verify this (if you don't already have HTTPS-based website) is:
STAGE 1 - getting HTTPS-enabled website
Create account on CloudFlare
Change your domain's DNS to CloudFlare's
Enter your server's IP in CloudFlare console
Enable free HTTPS (and disable cache - it may be tricky sometimes)
Now traffic to your website will be redirected through CloudFlare.
Traffic from your clients to CloudFlare will be encrypted, and traffic from CloudFlare to your server won't.
While it's not 100% secure, it allows to secure most common vector of attack - malicious internet provider etc and it takes very little effort to get free service worker-ready website.
If you want your own cert, you can use Let's Encrypt
STAGE 2 - putting GCM sender on your HTTPS server
I have example code for you in PHP:
<?
function sendPushNotification($data, $ids)
{
echo("<br><br><b>Sending notifications...</b>");
// Insert real GCM API key from the Google APIs Console
$apiKey = 'AIza...';
// Set POST request body
$post = array(
'registration_ids' => $ids,
'data' => $data,
);
// Set CURL request headers
$headers = array(
'Authorization: key=' . $apiKey,
'Content-Type: application/json'
);
// Initialize curl handle
$ch = curl_init();
// Set URL to GCM push endpoint
curl_setopt($ch, CURLOPT_URL, 'https://gcm-http.googleapis.com/gcm/send');
// Set request method to POST
curl_setopt($ch, CURLOPT_POST, true);
// Set custom request headers
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
// Get the response back as string instead of printing it
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// Set JSON post data
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($post));
// Actually send the request
$result = curl_exec($ch);
// Handle errors
if (curl_errno($ch))
{
echo 'GCM error: ' . curl_error($ch);
}
// Close curl handle
curl_close($ch);
// Debug GCM response
echo $result;
}
$data = array('message' => 'JAAAREEEEK!');
// Please note that currently push payload is not supported. However if you're reading this answer from the future it might work
// The recipient registration tokens for this notification
// https://developer.android.com/google/gcm/
$ids = ['registrationid1','registrationid2']
// Send push notification via Google Cloud Messaging
sendPushNotification($data, $ids);
I had exactly the same problem and this solution solved it. If you'll have any further problems, please give me a shout.
I've looked everywhere and can't find this issue. I've come over from PeopleSoft to .NET and have only recently began learning JavaScript and I'm attempting to use Google Apps Script to send email notification messages to Slack.
It appears to me that GAS's UrlFetchApp isn't handling an array correctly. Below I didn't include all the Slack API options for clarity. Here how I constructed the payload, where 'attachments' contains the array in question:
var payload =
{
// ...
"username": "Test webhook Bot",
"attachments": [
{
"pretext": "pre-hello1",
"text": "text-world1"
},
{
"pretext": "pre-hello2",
"text": "text-world2"
}
]
// ...
};
var options =
{
"method" : "post",
"payload" : payload,
"contentType":"application/json"
};
var response = UrlFetchApp.fetch(requestURL, options);
When testing I found that the post was occuring but Slack was ignoring the attachments portion of the message. I used the following to examine the outgoing POST:
var response = UrlFetchApp.getRequest(requestURL, options);
And what I found looking at the execution transcript I find that the JSON array in my payload isn't being encoded the way I expected. Before execution, I clearly see the properly formatted array.
[16-01-26 07:26:39:050 MST] UrlFetchApp.getRequest([https://slack.com/api/chat.postMessage?, {method=post, payload={attachments=[{pretext=pre-hello1, text=text-world1}, {pretext=pre-hello2, text=text-world2}], username=Test webhook Bot}, contentType=application/json}]) [0 seconds]
But what is actually sent, in place of the attachments array is: %5BLjava.lang.Object;#37f01fb3
[16-01-26 07:26:39:051 MST] Logger.log([Test:https://slack.com/api/chat.postMessage?attachments=%5BLjava.lang.Object;#37f01fb3&username=Test+webhook+Bot, []]) [0 seconds]
I tried searching this out as much as I could before asking for help, but I'm not sure if I'm either loss. Does anyone know where I may look to find out what I'm missing? Thanks.
To the extent that this information is helpful almost 4 years out, I've been running into the same problem and here's the solution I came up with:
- I will be including all relevant information encoded in the URL JSON structure
- The "options" portion of the UrlFetchApp is then just specifying the method and contentType
An example would look like this:
var url = "https://slack.com/api/chat.postMessage?token=the-token-here&channel=channel_id_here&text=hello%20world";
var options = {
"method": "post",
"contentType": "application/json",
};
return UrlFetchApp.fetch(url,options);
}
I also got some more helpful information at this Stack Overflow thread.
I think this is the Slack API documentation that helps explain the constraints:
JSON-encoded bodies
For these write methods, you may alternatively send your HTTP POST
data as Content-type: application/json.
There are some ground rules:
You must explicitly set the Content-type HTTP header to
application/json. We won't interpret your POST body as such without
it. You must transmit your token as a bearer token in the
Authorization HTTP header. You cannot send your token as part of the
query string or as an attribute in your posted JSON. Do not mix
arguments between query string, URL-encoded POST body, and JSON
attributes. Choose one approach per request. Providing an explicitly
null value for an attribute will result in whichever default behavior
is assigned to it.
Based on a comment I received from a Google Drive Help Forum discussion , I wanted to pass on more information on what I found regarding the use of JSON.stringify() in creating my Slack request. I modified my options JSON
var options = {
'method': 'post',
'payload': JSON.stringify(payload)
};
Google then interprets the 'attachments' array correctly when constructing the request and I no longer see the java.lang.Object error.
Additional lessons learned: prior to using JSON.stringify() Slack would let me post using my personal developer token as part of the payload. Once I began using JSON.stringify() Slack would not accept my personal token nor could I pass a channel parameter. This resulted in me creating a Slack Incoming Webhook direct to the channel I wanted. I haven't tracked down why that would be the case. It may be in Slack's documentation somewhere, I just haven't had time to look yet.