WSO2 Calculator API for Unit Text Example

CalculatorAPI.xml

<?xml version="1.0" encoding="UTF-8"?>
<api context="/calculator" name="CalculatorAPI" xmlns="http://ws.apache.org/ns/synapse">
    <resource methods="GET" uri-template="/add/{number1}/{number2}">
        <inSequence>
            <!-- Build Request -->
            <sequence description="Validating the input data" key="UnitTestExample_Validation_Sequence"/>
            <filter regex="FAILURE" source="get-property('VALIDATION_RESULT')">
                <then>
                    <sequence key="UnitTestExample_BuildFailureResponse_Sequence"/>
                </then>
                <else>
                    <sequence key="UnitTestExample_BuildRequestPayload_Sequence"/>
                    <!-- Send to Service -->
                    <sequence key="UnitTestExample_SendRequest_Sequence"/>
                    <sequence key="UnitTestExample_BuildResponsePayload_Sequence"/>
                    <!-- build response payload -->
                </else>
            </filter>
            <log level="full">
                <property expression="$ctx:VALIDATION_RESULT" name="ValidationResult"/>
            </log>
            <!-- Check if it was a failure - build error payload -->
            <!-- Else build request payload and send it -->
            <respond/>
        </inSequence>
        <outSequence/>
        <faultSequence/>
    </resource>
</api>