I am trying to use google-api-java-client for OAuth2.0 to create a simple 3rd party app to access an OAuth2.0 based webservices.
The programs breaks when I try to initialize
private static final HttpTransport HTTP_TRANSPORT = new ApacheHttpTransport();
They are imported as:
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.apache.ApacheHttpTransport;
It is a simple Web Application Project using Google App Engine plugin inside Eclipse.
Caused by: java.security.AccessControlException: access denied (java.net.NetPermission getProxySelector)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:376)
at java.security.AccessController.checkPermission(AccessController.java:549)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:383)
at java.net.ProxySelector.getDefault(ProxySelector.java:73)
at com.google.api.client.http.apache.ApacheHttpTransport.newDefaultHttpClient(ApacheHttpTransport.java:157)
at com.google.api.client.http.apache.ApacheHttpTransport.(ApacheHttpTransport.java:100)
at com.mytest.demo.TestApiDemoServlet.(TestApiDemoServlet.java:17)
I am using App Engine 1.8.4 and google-api-java-client 1.16.0-rc
Any help would be greatly appreciated!
You can't use ApacheHttpTransport in the GAE environment as this is retricted. This is the reason it is failing. You need to use UrlFetchTransport instead and it should work. To use this you need to import the corresponding jars from this link directly and drop in your libs or jar folder-
https://code.google.com/p/google-http-java-client/wiki/Setup#google-http-client-appengine
Related
I am working on a Xero integration and am having some issues setting up the XeroClient from the SDK. We are currently working in a React app written with Typescript.
Currently I am importing Xero SDK like this:
import { XeroClient } from 'xero-node';
And defining the client like this:
const xero = new XeroClient({
clientId: client_id,
clientSecret: client_secret,
redirectUris: [redirectUri],
scopes: scopes.split(' '),
});
Xero-node version: 4.0.6
React version: 16.12.0
But when compiling the app I get the following errors. Do you have any ideas as to what might be happening?
Console Logs
Browser Error
Might be related to this existing question.
Currently the xero-node project requires a backend to authenticate.. Is this a react SPA, or you are just setting up the API calls in the component?
Will OAuth 2.0 support desktop/mobile/single-page apps that can’t keep a client secret confidential?
At the moment, we require that your app can keep a client secret confidential. We are currently evaluating the PKCE extension to better support SPAs and mobile apps.
https://developer.xero.com/faq/oauth2/oauth-non-secret
Your Console error looks like its just the Unused vars expression.. Here is some context on what that is ( https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/no-unused-vars.md )
Your Secondary browser error makes me think that you are using an older version of Node.. We need to add an .npmrc that forces a supported node version - are you using an older Node VSN?
I am developing an API in golang directly on the "App Engine flexible environment" (formerly known as "Managed VMs").
So far, i have been using this kind of import in my .go files :
import (
"appengine"
"appengine/datastore"
...)
Recently I decided to use Google Cloud Storage to store images. It requires the import of "cloud.google.com/go/storage". My problem is that i'm unable to deploy the app with this import (not found), or any other short version ("go/storage") like I use for the appengine import.
After much research, I found this : https://github.com/golang/appengine#user-content-3-update-code-using-deprecated-removed-or-modified-apis
It specifies how to migrate an application using short imports (deprecated, like mine) to full imports (with repository explicit like "google.golang.org/appengine")
I followed the procedure and used the script they provide to update my code (aefix). They also say to add this line to my app.yaml file :
vm : true
If I do, I got this error message running 'gcloud app deploy' :
ERROR: (gcloud.app.deploy) Your application does not satisfy all of the requirements for a runtime of type [go]. Please correct the errors and try again.
If I don't, none of my imports are working and I get the following error :
can't find import: "google.golang.org/appengine/datastore"
Here is my app.yaml file :
runtime: go
api_version: go2
#vm : true
handlers:
- url: /.*
script: _go_app
Of course, all the imports are on the server under $GOPATH/src/ so they're not really missing, more badly referenced I guess.
I'm stuck on this problem since several days, any help of any kind would be appreciated !
Thanks
So sorry - we have some docs to go update. You cannot use the golang/appengine package with the App Engine flexible environment. The aefix tool won't work here either. Instead of the App Engine Go SDK, you want to use the Go client library here:
https://github.com/GoogleCloudPlatform/google-cloud-go
If you were previously using vm:true, you will need to upgrade to env:flex - the instructions (and the note on the go app engine library) are here:
https://cloud.google.com/appengine/docs/flexible/go/upgrading
Let me know if you have any questions!
I am using MavensMate Build 3124, which requires a separate MevensMate app in combination with Salesforce. I can now no longer find my project settings, meaning I can not refresh from my Salesforce server using API 38.0. This keeps resetting my package.xml to v37.0. I have set my Global Settings to use API v38.
Where can I find my project settings so that I can refesh using API 38?
look for the following file in your repository:
[your-project-name].sublime-project
add the following
{
"mm_api_version" : 38.0
}
Could someone help me access Big Query from an App Engine application ?
I have completed the following steps -
Created an App Engine project.
Installed google-api-client, oauth2client dependencies (etc) into /lib.
Enabled the Big Query API for the App Engine project via the cloud console.
Created some 'Application Default Credentials' (a 'Service Account Key') [JSON] and saved it/them to the root of the App Engine application.
Created a 'Big Query Service Resource' as per the following -
def get_bigquery_service():
from googleapiclient.discovery import build
from oauth2client.client import GoogleCredentials
credentials=GoogleCredentials.get_application_default()
bigquery_service=build('bigquery', 'v2', credentials=credentials)
return bigquery_service
Verified that the resource exists -
<googleapiclient.discovery.Resource object at 0x7fe758496090>
Tried to query the resource with the following (ProjectId is the short name of the App Engine application) -
bigquery=get_bigquery_service()
bigquery.tables().list(projectId=#{ProjectId},
datasetId=#{DatasetId}).execute()
Returns the following -
<HttpError 401 when requesting https://www.googleapis.com/bigquery/v2/projects/#{ProjectId}/datasets/#{DatasetId}/tables?alt=json returned "Invalid Credentials">
Any ideas as to steps I might have wrong or be missing here ? The whole auth process seems a nightmare, quite at odds with the App Engine/PaaS ease-of-use ethos :-(
Thank you.
OK so despite being a Google Cloud fan in general, this is definitely the worst thing I have been unfortunate enough to have to work on in a while. Poor/inconsistent/nonexistent documentation, complexity, bugs etc. Avoid if you can!
1) Ensure your App Engine 'Default Service Account' exists
https://console.cloud.google.com/apis/dashboard?project=XXX&duration=PTH1
You get the option to create the Default Service Account only if it doesn't already exist. If you've deleted it by accident you will need a new project; you can't recreate it.
How to recover Google App Engine's "default service account"
You should probably create the default set of JSON credentials, but you won't need to include them as part of your project.
You shouldn't need to create any other Service Accounts, for Big Query or otherwise.
2) Install google-api-python-client and apply fix
pip install -t lib google-api-python-client
Assuming this installs oath2client 3.0.x, then on testing you'll get the following complaint:
File "~/oauth2client/client.py", line 1392, in _get_well_known_file
default_config_dir = os.path.join(os.path.expanduser('~'),
File "/usr/lib/python2.7/posixpath.py", line 268, in expanduser
import pwd
File "~/google_appengine-1.9.40/google/appengine/tools/devappserver2/python/sandbox.py", line 963, in load_module
raise ImportError('No module named %s' % fullname)
ImportError: No module named pwd
which you can fix by changing ~/oauth2client/client.py [line 1392] from:
os.path.expanduser('~')
to:
os.env("HOME")
and adding the following to app.yaml:
env_variables:
HOME: '/tmp'
Ugly but works.
3) Download GCloud SDK and login from console
https://cloud.google.com/sdk/
gcloud auth login
The issue here is that App Engine's dev_appserver.py doesn't include any Big Query replication (natch); so when you're interacting with Big Query tables it's the production data you're playing with; you need to login to get access.
Obvious in retrospect, but poorly documented.
4) Enable Big Query API in App Engine console; create a Big Query ProjectID
https://console.cloud.google.com/apis/dashboard?project=XXX&duration=PTH1
https://bigquery.cloud.google.com/welcome/XXX
5) Test
from oauth2client.client import GoogleCredentials
credentials=GoogleCredentials.get_application_default()
from googleapiclient.discovery import build
bigquery=build('bigquery', 'v2', credentials=credentials)
print bigquery.datasets().list(projectId=#{ProjectId}).execute()
[or similar]
Good luck!
I'm using Google Cloud Endpoints as back end of a mobile application.
Now i want to implement push notifications for the iOS client but can't load the .p12 certificate from an #ApiMethod, get this error message:
Invalid keystore reference. File does not exist:
/base/data/home/apps/s~my-ws/1.379168523188882449/MyCert.p12"
I added the certificate under /src directory but does not seem to recognize it.
I'm using IntelliJ IDEA, Appengine API 1.9.12, javapns (for Push Notifications) and Maven.
Edit
Maybe i made a step forward.
I put the .p12 file under /src/webapp/WEB-INF/ and added
<configuration>...<webResources><resource><includes><include>*.p12</include>
in my pom.xml.
Then i run mvn clean install && mvn appengine:endpoints_get_discovery_doc and inspected the generated myws-1.0-SNAPSHOT.war. Within the .war file there is my MyCert.p12certificate, but i get this error message now:
java.security.AccessControlException: access denied (\"java.io.FilePermission\" \"/WEB-INF/MyCert.p12\" \"read\")"
Could you check the code that is actually loading the cert? It may be that you need to remove a leading slash from the File constructor. This is not an App Engine thing but a java File thing.
Also, unrelated to your solution but helpful, is a thread here on best ways to store p12 files on App Engine.