Mule ESB - payload base64-encoding and base64-decoding

In this blog, I'm going to explain how to make our payload encoding and decoding.

You can use base64-encoder-transformer to encode the payload

<base64-encoder-transformer xmlns="http://www.mulesoft.org/schema/mule/core" encoding="utf-8"></base64-encoder-transformer>

You can use base64-decoder-transformer to decode the payload

<base64-decoder-transformer xmlns="http://www.mulesoft.org/schema/mule/core" encoding="utf-8"></base64-decoder-transformer>

Find the below sample flow to check the encoding and decoding mechanism.

<mule xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
 xmlns:spring="http://www.springframework.org/schema/beans" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd">
    <http:listener-config name="HTTP_Listener_Configuration" host="0.0.0.0" port="8089" doc:name="HTTP Listener Configuration"/>
    <flow name="demo-encode-decodeFlow">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/sample" doc:name="HTTP" allowedMethods="POST"/>
        <logger message="#[message.payloadAs(java.lang.String)]" level="INFO" doc:name="Logger"/>
        <base64-encoder-transformer xmlns="http://www.mulesoft.org/schema/mule/core" encoding="utf-8"></base64-encoder-transformer>
        <logger message="#[message.payloadAs(java.lang.String)]" level="INFO" doc:name="Logger"/>
        <base64-decoder-transformer xmlns="http://www.mulesoft.org/schema/mule/core" encoding="utf-8"></base64-decoder-transformer>
        <logger message="#[message.payloadAs(java.lang.String)]" level="INFO" doc:name="Logger"/>
    </flow>
</mule>

Note: I used the logger component to print the encode and decode messages.

After making the POST request with a payload, we can see the below logs in the console:

INFO  2017-07-20 05:26:33,031 [[demo-encode-decode].HTTP_Listener_Configuration.worker.01] org.mule.api.processor.LoggerMessageProcessor: Original Payload: ,{
  "id": "mule001",
  "name": "Mule course",
  "description": "Mule course Description"
}
INFO  2017-07-20 05:26:33,032 [[demo-encode-decode].HTTP_Listener_Configuration.worker.01] org.mule.api.processor.LoggerMessageProcessor: base64-encoded message: ,ewogICJpZCI6ICJtdWxlMDAxIiwKICAibmFtZSI6ICJNdWxlIGNvdXJzZSIsCiAgImRlc2NyaXB0aW9uIjogIk11bGUgY291cnNlIERlc2NyaXB0aW9uIgp9
INFO  2017-07-20 05:26:33,032 [[demo-encode-decode].HTTP_Listener_Configuration.worker.01] org.mule.api.processor.LoggerMessageProcessor: base64-decoded message: ,{
  "id": "mule001",
  "name": "Mule course",
  "description": "Mule course Description"
}

Enjoy..!!