facebook-sdk | Plugins | Grails Framework

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Facebook SDK Grails Plugin

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Introduction

The Facebook Platform is a set of APIs that make your application more social. Read more about integrating Facebook with your web site on the Facebook developer site.

This project contains the open source Grails Facebook SDK Plugin that allows you to integrate the Facebook Platform on a website/app powered by Grails.

This plugin is a port of the official Facebook PHP SDK to Grails 3.0.

It supports the latest OAuth2.0 authentication (required since October 1st 2011).

Grails Facebook SDK Plugin provides the following Grails artefacts:

WARNING: Facebook API v3.0 is now used by default.

Installation

Declare the plugin dependency in the build.gradle file, as shown here:

dependencies {
    ...
    compile "org.grails.plugins:facebook-sdk:4:0.0"
    ...
}

Config

Create a Facebook app on Facebook Developers, in order to get your own app ID and app secret.

Add your Facebook app parameters to your grails-app/conf/application.yml:

grails:
    plugin:
        facebooksdk:
            app:
                id: {APP_ID}
                permissions: {APP_PERMISSIONS} // Ex. ['email','user_photos']
                secret: {APP_SECRET}

By default, latest Graph API v3.3 will be used.
You can override default settings with apiVersion setting:

grails:
    plugin:
        facebooksdk:
            apiVersion: v2.3

Since FacebookContext should be instantiated at each request, you must use prototype scope for your Controllers (since Grails 2.3, singleton is the default scope).

grails:
    controllers:
        defaultScope: prototype

Default jQuery selector is $, if you require another one, you can define it globally in your grails-app/conf/application.groovy:

grails:
    plugin:
        facebooksdk:
            customSelector: jQuery

Bugs

To report any bug, please use the project Issues section on GitHub.

Feedback

The Grails Facebook SDK is not an official Facebook SDK such as Javascript, PHP, iOS and Android SDKs.

It is developed by AgoraPulse.

The Grails Facebook SDK is licensed under the Apache Licence, Version 2.0.

Breaking Changes

4.0.1

  • Default return type of fetchObject from FacebookExtensions is back to JsonObject instead of Map

4.0.0

  • restfb upgrade – see https://github.com/restfb/restfb/blob/master/migrations.md
    • removed FacebookRestClient and DefaultFacebookRestClient
    • avoid using raw JsonObject as the class has completely changed i.g. JsonObject from restfb 2.x implements own method asBoolean() which fails if the value is not boolean so you need to do regular foo != null check for testing the presense of the returned JsonObject value
  • FacebookGraphClient is now deprecated, use FacebookGraphClientService to create instances of FacebookClient with similar capabilities
  • FacebookExtensions the most useful methods from FacebookGraphClientare now injected using extensions methods to FacebookClient interface directly

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