Get content of local-entry into Basic Authorization property - wso2

Question

I am using the esb as a mediator, to translate rest to soap basically. The soap I am invoking is secure, so I need a Authorization property. I have no problem using this service:
<resource methods="GET" uri-template="/getAllZones">
<inSequence>
<property xmlns:ns="http://org.apache.synapse/xsd" name="Authorization" expression="fn:concat('Basic ', base64Encode('user:password'))" scope="transport"></property>
<property name="DISABLE_CHUNKING" value="true" scope="axis2"></property>
<payloadFactory media-type="xml">
<format>
<zon:GetAllZones xmlns:zon="http://someUrl.xsd">
<Filter></Filter>
</zon:GetAllZones>
</format>
<args></args>
</payloadFactory>
<send>
<endpoint key="myEndpoint"></endpoint>
</send>
<log level="full"></log>
</inSequence>
<outSequence>
<property name="messageType" value="application/json" scope="axis2" type="STRING"></property>
<send></send>
</outSequence>
</resource>
But I want to store the user and password as a local entry inside ESB. I have tried this:
<property xmlns:ns="http://org.apache.synapse/xsd" name="Authorization" expression="fn:concat('Basic ', base64Encode(get-property('user'):get-property('password')))" scope="transport"></property>
But it is not working. Any Ideas?
Thanks in advance

Answer 1

You can store your values inside the registry. Then access them using get-property with scope registry.
For example, if you have some registry resource stored in conf:/creds/user and this has properties username and password, you can access those using:
get-property('registry', 'conf:/creds/user#username') and get-property('registry', 'conf:/creds/user#password')
As an example, in order to access properties setup as follows:
You would use something like:
<inSequence>
<log level="custom">
<property name="Username" expression="get-property('registry', 'conf:/user#username')"/>
<property name="Password" expression="get-property('registry', 'conf:/user#password')"/>
<property name="Encoded" expression="fn:concat('Basic ', base64Encode(fn:concat(get-property('registry', 'conf:/user#username'), ':', get-property('registry', 'conf:/user#username'))))"/>
</log>
<respond/>
</inSequence>
But you might want to consider encrypting the password. In which case you should use the secure vault inside the ESB. You can access something in a secure vault using alias {wso2:vault-lookup('user')}.
More details in https://docs.wso2.com/display/ESB490/Working+with+Passwords.