//[[restapi:start|RESTful API]]//

====== Posting a Message to the Facebook Wall (Tag 34) ======

==== Overview ====

Allows you to post messages in your Facebook's wall.

<WRAP round alert>
Use this method if you meet the following requirements:

  * You have a [[https://developers.facebook.com/docs/apps/register|Facebook app]]. 
  * You has registered your app with the Campaign Manager
  * You have granted permissions to the application to post messages in your Facebook's wall
</WRAP>
==== URL ====

Parameters on the following URL are inside braces { }
  {base_url}/rest/api/tools/postAppFacebook/{instanceId}/{deviceId}/{appName}/{msgContent}/{publicKey}/{signature}

^ Parameter Name ^ Description ^
| instanceId | An **instance id** is the workspace identification number, //if you don't know yours please request it using our [[misc:otto|ticketing tool]], you will need to provide your Mobile Engagement Campaign Manager's URL and your user login// |
| device | The user's identifier. In this particular case will be the Facebook pseudonym or alias. |
| appName | Your Facebook App's name which will post your messages |
| msgContent | The message you want to post. This parameter must be [[restapi:appx_ciphering|Base64 encoded]]. |
| redirectURL | The URL that users will be redirected to from Facebook after registration finished. This parameter must be [[restapi:appx_ciphering|Base64 encoded]]. |
| publicKey | The public key to access this API. //if you don't know yours please request it using our [[misc:otto|ticketing tool]], you will need to provide your Mobile Engagement Campaign Manager's URL and your user login// |
| signature | The unique [[restapi:appx_ciphering#SHA256 - Cipher|SHA256]] signature for this call, it's involve all input parameters. To learn about generating the correct signature please visit our [[restapi:appx_call_ex|Java Example]] |
==== Response ====

The Response XML is divided in a static part and a dynamic one, we call it dynamic because it will vary depending on the method you invoke. Please read our [[restapi:appx_resp_xml|Response XML Basics]] section if you want to learn more about the response parts.

<file xml>

<input>postAppFacebook</input>
<status>OK</status>
<description>Completed</description>
<result>
	<providerResponse> 
		<successful>true</successful>
		<code>005</code>
		<description>Successful transaction</description>
	</providerResponse>
</result>

</file>

== Result parameters ==

^ Parameter Name ^ Description ^ Possible Values ^
| successful | <color blue>true</color> Indicates that the message was posted correctly | <color blue>true</color> \\ <color red>false</color> |
| code | This is the Facebook's error code from the [[https://developers.facebook.com/docs/graph-api|Graph API]] if the process fails, useful to track issues if needed | Text |
| description | A human readable explanation | Text |