define endpoint in WSO2 Integration Studio

i have a flow which execute 3 stored procedures from Postgress and her flow is the next:

and the flow code api definition is the next:

<?xml version="1.0" encoding="UTF-8"?>
<api context="/animalstore" name="AnimalStoreFlowServices" xmlns="http://ws.apache.org/ns/synapse">
<resource methods="POST">
<inSequence>
<!-- Lógica para llamar al procedimiento almacenado -->
<log description="Log Request Payload" level="full"/>
<switch description="Route based on the Operation" source="json-eval($.Operation)">
<case regex="datosCliente">
<dblookup>
<connection>
<pool>
<driver>org.postgresql.Driver</driver>
<url>jdbc:postgresql://localhost:5432/animalstore</url>
<user>postgres</user>
<password>passwd12</password>
</pool>
</connection>
<statement>
<sql><![CDATA[SELECT * FROM get_animals_data();]]></sql>
<result column="nombrecompleto" name="variable1"/>
<result column="cuenta_id" name="variable3"/>
<result column="domicilio" name="variable2"/>
</statement>
<!-- Set database connection -->
</dblookup>
<!-- Mapping the captured values in a property list-->
<property description="Set response properties" expression="$ctx:variable1" name="VariableList1" scope="default" type="STRING"/>
<property description="Set response properties" expression="$ctx:variable2" name="VariableList2" scope="default" type="STRING"/>
<property description="Set response properties" expression="$ctx:variable3" name="VariableList3" scope="default" type="STRING"/>
<!-- Configure the response with the captured values -->
<payloadFactory description="Create response payload" media-type="xml">
<format>
<Response xmlns="">
<datosCliente>
<Nombre>$1</Nombre>
<Domicilio>$2</Domicilio>
<NúmeroCliente>$3</NúmeroCliente>
</datosCliente>
</Response>
</format>
<args>
<arg evaluator="xml" expression="$ctx:VariableList1"/>
<arg evaluator="xml" expression="$ctx:VariableList2"/>
<arg evaluator="xml" expression="$ctx:VariableList3"/>
</args>
</payloadFactory>
</case>
<case regex="datosCuenta">
<dblookup>
<connection>
<pool>
<driver>org.postgresql.Driver</driver>
<url>jdbc:postgresql://localhost:5432/animalstore</url>
<user>postgres</user>
<password>passwd12</password>
</pool>
</connection>
<statement>
<sql><![CDATA[SELECT * FROM get_herfamily_data();]]></sql>
<result column="numerocuenta" name="variable1"/>
<result column="nombrebanco" name="variable3"/>
<result column="vigencia" name="variable2"/>
</statement>
<!-- Set database connection -->
</dblookup>
<!-- Mapping the captured values in a property list-->
<property description="Set response properties" expression="$ctx:variable1" name="VariableList1" scope="default" type="STRING"/>
<property description="Set response properties" expression="$ctx:variable2" name="VariableList2" scope="default" type="STRING"/>
<property description="Set response properties" expression="$ctx:variable3" name="VariableList3" scope="default" type="STRING"/>
<!-- Configure the response with the captured values -->
<payloadFactory description="Create response payload" media-type="xml">
<format>
<Response xmlns="">
<datosCuenta>
<numeroCuenta>$1</numeroCuenta>
<vigencia>$2</vigencia>
<banco>$3</banco>
</datosCuenta>
</Response>
</format>
<args>
<arg evaluator="xml" expression="$ctx:VariableList1"/>
<arg evaluator="xml" expression="$ctx:VariableList2"/>
<arg evaluator="xml" expression="$ctx:VariableList3"/>
</args>
</payloadFactory>
</case>
<case regex="datosSaldo">
<dblookup>
<connection>
<pool>
<driver>org.postgresql.Driver</driver>
<url>jdbc:postgresql://localhost:5432/animalstore</url>
<user>postgres</user>
<password>passwd12</password>
</pool>
</connection>
<statement>
<sql><![CDATA[SELECT * FROM get_clinic_profile();]]></sql>
<result column="saldo" name="variable1"/>
<result column="fecha" name="variable2"/>
</statement>
<!-- Set database connection -->
</dblookup>
<!-- Mapping the captured values in a property list-->
<property description="Set response properties" expression="$ctx:variable1" name="VariableList1" scope="default" type="STRING"/>
<property description="Set response properties" expression="$ctx:variable2" name="VariableList2" scope="default" type="STRING"/>
<!-- Configure the response with the captured values -->
<payloadFactory description="Create response payload" media-type="xml">
<format>
<Response xmlns="">
<datosSaldo>
<saldo>$1</saldo>
<fecha>$2</fecha>
</datosSaldo>
</Response>
</format>
<args>
<arg evaluator="xml" expression="$ctx:VariableList1"/>
<arg evaluator="xml" expression="$ctx:VariableList2"/>
</args>
</payloadFactory>
</case>
<default>
<payloadFactory description="Create response payload for unsupported operation" media-type="xml">
<format>
<Message xmlns="">Unsupported operation.</Message>
</format>
<args/>
</payloadFactory>
</default>
</switch>
<property description="Set message type" name="messageType" scope="axis2" type="STRING" value="application/json"/>
<respond description="Send result to the client"/>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
</api>

at this point i use POSTMAN for get the stored procedure values and i can do it corrrectly

But i have understand that for do a unit tests i should have an end-point define for each stored procedure, anyone can orient me about how define an EndPoint?
which one should i use?
an endpoint from the Pallette or a Defined Endpoint? i need two kicks for understand completely how do a wso2 flow service.

You can't create an Endpoint for the stored procedure execution in your case, Endpoints are used to do HTTP calls. Since you are using the DBLookup mediator you can't do a HTTP call on it. So you can write a unit test to test the entire API. If you really want to do an HTTP call to execute the stored procedure you can create a Dataservice instead of using the DbLookup mediator and then use the Call Mediator to call it.