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I have a Facebook app and would like to change the permissions on it. These were straightforward to set when I created the app, but when I login to the app and go through the settings, I can't find any mention of permissions. Where do I go to update the permissions on an existing app?
If you are user using another app: you cannot modify existing permissions. The best you can do is deauthorize the app.
If you are the owner of the app, and you want to ask for additional permissions: then you simply need to redirect your present users to the app authorization link requesting them to authorize the new permissions.
This assumes that you are referring to the API permissions. http://developers.facebook.com/docs/reference/api/permissions/
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I am trying to use the pre-built embed code in COVID-19 tracking US sample to create a customised report, but can't publish on the web. Need some advise/help please.
Since January 2020 Publish to web by default is disabled. You need to get a permission from the admin of your tenant to be able to use it.
In Tenant settings they can change the option Choose how embed code work:
From there, your admin can allow you to generate new embed codes. If you don't have admin rights, you can't do anything else except asking for permission.
See: Heads up: The Publish to web default is changing and it affects who can create public embed codes
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I am writing a web service in JAVA which will expose a product's API.
What i cannot figure out for my Low level design is, how to authenticate and authorize within my web service.
For example :- Who can or cannot invoke methods on my web service.
I want to build something like, one user can add an account however shouldn't be allowed to add user while some other user can do vice versa.
Can anyone give me a direction for best practices, i can figure out the details.
Here is a leightweight howto:
You could implement a usertable and provide a login mechanism. Every time a user logs in you could store the userid in a session. If an arbitrary request is received you check whether a session exists. If not you force the user to login otherwise you read the userid from the session. Then you can determine which functions the user is allowed to access.
Also this link about similar question on stackoverflow might help:
Servlet user authentication
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I have already registered as a Facebook Developer but i am not finding any app id and secret key . Can Anyone help me ??
The list of all your apps and their settings (including id and secret) is here:
https://developers.facebook.com/apps
You may want to check out some tutorials about facebook apps, for example:
http://www.emanueleferonato.com/2009/09/20/developing-a-facebook-application-for-absolute-beginners/
Also, the official documentation is not that bad, but pretty big:
https://developers.facebook.com/docs/
You will find a developer link at the bottom of the page, after opening it you will find apps link at top right of page, click it to see your apps detail.
or
simple way is just login to facebook and copy below link to your browser.
https://developers.facebook.com/apps
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I'm suddenly not able to login anymore, neither at back-end nor front-end. I'm sure that I use the correct username/password and that the user is enabled. I have checked this with phpmyadmin. The error message I get is that the username/password is incorrect. I have also tried to recover my password and I finished this successfully, but when I try to login it again tells me that username/password is incorrect.
Any ideas what I can try to fix this issue? I have access to the web-server and database.
I found the solution. I did disable joomla-authentication plugin. Just make sure that plg_authentication_joomla is enabled in the _extensions table in your joomla database.
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I am an administrator for a page which was created for our company by a third party. Now, that third party is no longer with us and we are trying to add a developer account to the page. How can we achieve it?
In your app settings at https://developers.facebook.com/apps
Click 'edit settings'
Click 'roles'
Add the additional Administrators / Developers (by name if they're your friend on Facebook, by email address otherwise)
Your question isn't entirely clear, and it sounds like you could also be talking about a Page on Facebook.com - in that case
Go to the Page
Click 'Edit Page' in the top right
Click 'Manage Admins' on the left
Add the additional Administrators (by name if they're your friend on Facebook, by email address otherwise)