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问题:
I'm writing an email-based application using the gmail-api, and i need to retrieve user public images for email address originating from google.
I've seen other applications do that, but i can't seem a way to reliably get this data.
some more information:
- i'm using oauth2 to sign the user in - and i have no problem requesting any type of permissions there.
- i've tried retrieving the image using the google+ api - but it requires a userID for that - and i don't know how to get the userId for the email address (gmail-api doesn't give it, afaik).
- i've tried using the contacts API - but it only gives images for the user's contacts, while the email clients can display images from other users as well.
Thanks!
Edit:
I know i can receive the required images from google plus, if i have the other user's userid. however, i can't find a way to get the userid based on an email address.
回答1:
Is very easy
http://picasaweb.google.com/data/entry/api/user/<hereYourUserIdOrYourEmail>?alt=json
just has a little problem.
You only can get the picture of your Google+ profile, not directly from your gmail.
UPDATE:
This API is being deprecated and will be turned down in January 2019. Migrate to Google Photos Library API as soon as possible to avoid disruptions to your application.
Info Here
回答2:
Based on @jose920405 answer, I have written this free public API service called Pikmail API. Here some advantages.
- No authentication needed.
- It's totally free and open source.
- It's written in Kotlin.
- You don't need to write some wrapper for mapping the response.
Here is the blog post about how Pikmail API works internally.
Usage:
Html
<img src="https://pikmail.herokuapp.com/eduardo.alejandro.pool.ake@gmail.com?size=50" alt="Profile Picture">
Java Android
Picasso.with(context).load("https://pikmail.herokuapp.com/eduardo.alejandro.pool.ake@gmail.com?size=50").into(imageView);
Feel free to contribute with you pull requests, open bugs or request new features here.
Note: This service is based on an independent library called Pikmail that can be used as a Gradle dependency in your java projects(servers or Android apps).
回答3:
Google+ is the right way to do this. This actually has nothing to do with the Gmail API. You don't need a the user's userid, just a valid access token with appropriate scopes.
https://www.googleapis.com/plus/v1/people/me?access_token=YOUR_ACCESS_TOKEN_HERE
Unless there is an error/invalid token/etc, this will return a bunch of information about the user as JSON. Included in this data will be a URI for the user's profile image.
EDIT:
To get the profile picture for a user based on the email address, first search for the user
https://www.google.com/m8/feeds/contacts/default/thin?q=EMAIL_ADDRESS_HERE
You can then retrieve the correct userID for that user from the returned JSON, and use it to get a profile image.
回答4:
May be too late in answering the question but the best way i found was to first use
http://picasaweb.google.com/data/entry/api/user/?alt=json
from the JSON Response you will get author section which has
uri: $t: https:picasaweb.google.com/0000000000000
now the numbers at the end is the USER ID which can be used to Retrieve user profile using this API
https:www.googleapis.com/plus/v1/people/userId
Ex: https:www.googleapis.com/plus/v1/people/0000000000000
回答5:
a simple javascript to fetch public profile image from google:
<html>
<body>
<script type="text/javascript">
function getPhoto() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
myArr = JSON.parse(this.responseText);
try {
profilePic = myArr["feed"]["entry"][0]["media$group"]["media$thumbnail"][0]["url"];
document.getElementById("demo").innerHTML="<img src='" + profilePic + "' width='160px' height='160px'>"
}
catch(err) { }
}
}
xmlhttp.open("GET", "https://picasaweb.google.com/data/feed/api/user/<EMAIL>?kind=album&alt=json", true);
xmlhttp.send();
}
</script>
<div id="demo" onclick="javascript:getPhoto();">click here to load photo</div>
</body>
</html>
回答6:
I banged my head against this for days, since none of the answers seemed to work anymore. What did work and looks more robust against future changes was (it uses jQuery):
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<script src="https://apis.google.com/js/api.js"></script>
<script type="text/javascript">
function image_attach(GA){
user=GA.currentUser.get();
url = user.getBasicProfile().getImageUrl();
$('#thumbnail').attr('src', url);
}
function google_init() {
gapi.load('auth2', function() {
GA = gapi.auth2.init({
'client_id': '{YOUR_GOOGLE_CLIENT_ID}',
'fetch_basic_profile': true,
});
GA.then(function () {
if (GA.isSignedIn.get()) {
image_attach(GA)
}
else {
GA.signIn().then( function() {
image_attach(GA)
})}
})
});
}
</script>
You need a Google OAuth2 client id - see https://developers.google.com/identity/protocols/OAuth2UserAgent for the details. It does not seem to work just with an API Key - from the responses I was getting they have set the quota for unauthenticated access to the API (I.e. just using the Key and not the ClientID) to zero.
The Client ID is available from the cloud console as documented on the link - I think you need to create a project to create the credentials but if you are not using it they will not charge you so that is not a problem.The user does need to be logged in - if not this code will log then in. But if you are not using a Google login for your page anyway - why would you want their thumbnail? Because the image URL is available from the basic user profile . - the API request does not seem to need any particular scope and there is none in the API call in the code.
You will need to identify the url for page that you are calling from as part of your client credentials in the Google console - otherwise the request will be denied. There is a quota - I think it is 20,000 a day - of free API calls after which they will charge you for using the API. That is as much as I can gather.
回答7:
You can use google app profile API
here is the sample code to access profile pic
function getProfilePic(userName){
userName = 'yourusername@myDomain.com';
var scope = 'https://www.google.com/m8/feeds/';
var fetchArgs = googleOAuth_('Profile', scope);
fetchArgs.method = 'GET';
var domain = UserManager.getDomain();
var url = 'https://www.google.com/m8/feeds/photos/profile/'+domain+'/'+userName+'?v=3';
var rawData = UrlFetchApp.fetch(url, fetchArgs).getContentText();
//here you get data into rawData variable
}
//google oAuth
function googleOAuth_(name,scope) {
var oAuthConfig = UrlFetchApp.addOAuthService(name);
oAuthConfig.setRequestTokenUrl("https://www.google.com/accounts/OAuthGetRequestToken?scope="+scope);
oAuthConfig.setAuthorizationUrl("https://www.google.com/accounts/OAuthAuthorizeToken");
oAuthConfig.setAccessTokenUrl("https://www.google.com/accounts/OAuthGetAccessToken");
oAuthConfig.setConsumerKey("anonymous");
oAuthConfig.setConsumerSecret("anonymous");
return {oAuthServiceName:name, oAuthUseToken:"always"};
}
you can get more information here
回答8:
If you are authenticating users in your app with Google using the OAuth 2.0 API -For example using passport -> https://www.npmjs.com/package/passport-google-oauth20
You can request the "profile" scope, which gives you a bunch of information from displayName to the users profile photos "profile.photos[0]"
