This tutorial explains how to use the Dropbox connector in Mulesoft to authorize a Dropbox account, get account details, create a folder, and logout. The Dropbox connector must be configured with an app key and secret from the Dropbox developer dashboard. A flow is then created to call Dropbox operations like authorize, get account details, create a folder, and unauthorize.

1. Dropbox Mule Connector
This tutorial explains about the Dropbox Connector functionality in Mule.
Operations performed in this flow:
Authorize :
1. Get Account Details
2. Create a Folder in Dropbox
3. Unauthorized
Pre-requisites:
1. Anypoint Studio 5.1 with Dropbox plugin
2. Dropbox developer account
3. Jdk 1.7
Create an app in Dropbox developer site
https://www.dropbox.com/developers/. Copy the App Secret and App key
and provide the oauth2 redirect URL. These details are required for
Dropbox connector configuration.

3. Dropbox Connector Configuration

5. Dropbox Flow

6. Source Code
<dropbox:config name="Dropbox" appKey="appkey" appSecret="appsecret" doc:name="Dropbox">
<dropbox:oauth-callback-config domain="localhost" localPort="8080" remotePort="8080" path="dropbox" />
</dropbox:config>
<http:listener-config name="HTTP_Listener_Configuration" host="0.0.0.0" port="8081" doc:name="HTTP Listener
Configuration"/>
<flow name="DropboxConnectorFlow">
<http:listener config-ref="HTTP_Listener_Configuration" path="/dropbox" doc:name="HTTP"/>
<dropbox:authorize config-ref="Dropbox" doc:name="Authorize Dropbox"/>
<logger message="Login Succefull #[message]" level="INFO" doc:name="Logger"/>
<dropbox:get-account config-ref="Dropbox" doc:name="get Dropbox Account Details"/>
<json:object-to-json-transformer doc:name="Convert Result Object to JSON"/>
<logger message="#[payload.toString()]" level="INFO" doc:name="Logger"/>
<dropbox:create-folder config-ref="Dropbox" path="MuleFolder" doc:name="Create a folder in Dropbox"/>
<json:object-to-json-transformer doc:name="Conver the Result Object to JSON"/>
<logger message="Created Folder in DropBox : #[payload]" level="INFO" doc:name="Logger"/>
<dropbox:unauthorize config-ref="Dropbox" doc:name="Unauthorize Dropbox"/>
</flow>

7. Source Code
<dropbox:config name="Dropbox" appKey="appkey" appSecret="appsecret" doc:name="Dropbox">
<dropbox:oauth-callback-config domain="localhost" localPort="8080" remotePort="8080" path="dropbox" />
</dropbox:config>
<http:listener-config name="HTTP_Listener_Configuration" host="0.0.0.0" port="8081" doc:name="HTTP Listener
Configuration"/>
<flow name="DropboxConnectorFlow">
<http:listener config-ref="HTTP_Listener_Configuration" path="/dropbox" doc:name="HTTP"/>
<dropbox:authorize config-ref="Dropbox" doc:name="Authorize Dropbox"/>
<logger message="Login Succefull #[message]" level="INFO" doc:name="Logger"/>
<dropbox:get-account config-ref="Dropbox" doc:name="get Dropbox Account Details"/>
<json:object-to-json-transformer doc:name="Convert Result Object to JSON"/>
<logger message="#[payload.toString()]" level="INFO" doc:name="Logger"/>
<dropbox:create-folder config-ref="Dropbox" path="MuleFolder" doc:name="Create a folder in Dropbox"/>
<json:object-to-json-transformer doc:name="Conver the Result Object to JSON"/>
<logger message="Created Folder in DropBox : #[payload]" level="INFO" doc:name="Logger"/>
<dropbox:unauthorize config-ref="Dropbox" doc:name="Unauthorize Dropbox"/>
</flow>