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Overview
The following operations allow operation allows you to work with messages. Click an the operation name to see details on how to use it.
For a sample proxy service that illustrates how to work with messages, see Sample configuration.
Operation details
This section provides details on the operation.
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a message
The getMessag operation retrieves a message based on the specified message ID.
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Before performing this operation, ensure that you call the |
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<facebook.getMessage>
<messageId>{$ctx:messageId}</messageId>
<fields>{$ctx:fields}</fields>
</facebook.getMessage> |
Properties
messageId: Unique ID for this messageThe unique ID of the message you want to retrieve.fields: The fields which belongs to an object.to include in the response when you retrieve a message. For more information on the fields property, see https://developers.facebook.com/docs/graph-api/reference/message#readfields
Sample requestAnchor request request
Following is a sample REST request for the getMessage that can be handled by the getMessage operation.
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{
"apiUrl":"https://graph.facebook.com",
"apiVersion":"v2.4",
"accessToken":"CAACEdEose0cBAGlDzIRGv0KAopxqBhmSKgQTbfvnROAZAwZBPSnH7OpqVeEP9t4eZCpO2xbIdIZAI4g6MayNwIgk3R7t4xqX2atZAKfxqJS8UnacJJjthuAsnr8eI7pyOuLojRtdzH2zNFdwt7K1QeJgH6isCYpAFg2ZBY6r3MqDssgTQ7fES5zCrPpopr3S29wAKiz089MgZDZD",
"messageId":"192451917539863",
} |
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Related Facebook documentation:
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Following is a sample proxy service that illustrates how to connect to Facebook with the init operation and the init operation, and then use the getMessage operation getMessage operation. The sample request for this proxy can be found in getMessage sample request. You can use this sample as a template for using other operations in this category.
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As a best practice, create create a separate sequence for handling the to handle response payload for errors. In the following sample, this sequence is "faultHandlerSeq"the sequence that handles errors is the |
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<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="facebook_getMessage"
transports="https,http"
statistics="disable"
trace="disable"
startOnLoad="true">
<target>
<inSequence onError="faultHandlerSeq">
<property name="apiUrl" expression="json-eval($.apiUrl)"/>
<property name="apiVersion" expression="json-eval($.apiVersion)"/>
<property name="accessToken" expression="json-eval($.accessToken)"/>
<property name="fields" expression="json-eval($.fields)"/>
<property name="messageId" expression="json-eval($.messageId)"/>
<facebook.init>
<apiUrl>{$ctx:apiUrl}</apiUrl>
<apiVersion>{$ctx:apiVersion}</apiVersion>
<accessToken>{$ctx:accessToken}</accessToken>
</facebook.init>
<facebook.getMessage>
<messageId>{$ctx:messageId}</messageId>
<fields>{$ctx:fields}</fields>
</facebook.getMessage>
<respond/>
</inSequence>
<outSequence>
<property name="messageType" value="application/json" scope="axis2" />
<send/>
</outSequence>
</target>
</proxy> |