ESB WSO2 - Using ARRAY as paramType in a datasource query - wso2

Question

I want to sent a request to my api like this:
{
"id": "22",
"code": "AXB23, ADR40, SMRS2"
}
And I want to use every code in a query like "SELECT ... WHERE ... IN(AXB23, ADR40, SMRS2)" in my datasource but I don't know how.
I found here a solution with <param type="IN" name="code" paramType="ARRAY" sqlType="STRING"/>
but it doesn't work.
Any suggestions?
EDIT*:
This is my api (inSequence - forget about the id from request in the original post, I just only have that 'code')
<inSequence>
<property expression="json-eval($..code)" name="code" scope="default" type="STRING"/>
<payloadFactory media-type="xml">
<format>
<selectTEST xmlns:xs="http://ws.wso2.org/dataservice/selectTEST">
<code>$1</code>
</selectTEST>
</format>
<args>
<arg evaluator="xml" expression="$ctx:code"/>
</args>
</payloadFactory>
<property name="messageType" scope="axis2" type="STRING" value="text/xml"/>
<header name="Action" scope="default" value="selectTEST"/>
<call>
<endpoint key="ep.select"/>
</call>
<property name="messageType" scope="axis2" type="STRING" value="application/json"/>
<respond/>
</inSequence>
and this is my dataservice:
<operation name="selectTEST" returnRequestStatus="true">
<call-query href="selectTEST">
<with-param name="code" query-param="code"/>
</call-query>
</operation>
<query id="selectTEST" useConfig="default">
<sql><![CDATA[
select x, y, z, w from mydatabase where code in (:code)
]]></sql>
<param type="IN" name="code" paramType="ARRAY" sqlType="STRING"/>
<result outputType="json">
{
"data": {
"records": [
{
"x": "$x",
"y": "$y",
"z": "$z",
"w": "$w"
}
]
}
}
</result>
</query>
My request:
{
"code": ["AXB23", "ADR40"]
}

Answer 1

If you are using the array type parameters you should pass the values as a proper JSON array. Something like this will work for you.
The Request:
{
"_poststudent": {
"code": ["AXB23","ADR40"]
}
}
Dataservice Query
<query id="CreateStudents" useConfig="default">
<sql>SELECT id, name, school, grade FROM students WHERE grade IN (:code)</sql>
<param name="code" paramType="ARRAY" sqlType="STRING" type="IN" optional="false" />
<result outputType="json">{"students":{"student":[{"name":"$name","school":"$school","grade":"$grade"}]}}{"students":{"student":[{"name":"$name","school":"$school","grade":"$grade"}]}}{"students":{"student":[{"name":"$name","school":"$school","grade":"$grade"}]}}{"students":{"student":[{"name":"$name","school":"$school", "grade":"$grade"}]}}{"students":{"student":[{"name":"$name","school":"$school","grade":"$grade"}]}}{"students":{"student":[{"name":"$name","school":"$school","grade":"$grade"}]}}{"students":{"student":[{"name":"$name","school":"$school", "grade":"$grade"} ] }}{"students":{"student":[{"name":"$name","school":"$school","grade":"$grade"} ] } }</result>
</query>
Update
The Full Dataservice config.
<data name="RESTDataService" serviceNamespace="http://ws.wso2.org/dataservice/samples/json_sample" transports="http https">
<description>Exposing the data service as a REST service.</description>
<config id="default">
<property name="driverClassName">com.mysql.jdbc.Driver</property>
<property name="url">jdbc:mysql://localhost:3306/school_db</property>
<property name="org.wso2.ws.dataservice.user">xxxxx</property>
<property name="org.wso2.ws.dataservice.password">xxxxx</property>
</config>
<resource method="POST" path="student">
<call-query href="ReadStudents">
<with-param name="code" query-param="code" />
</call-query>
</resource>
<operation name="selectTEST" returnRequestStatus="true">
<call-query href="ReadStudents">
<with-param name="code" query-param="code" />
</call-query>
</operation>
<query id="ReadStudents" useConfig="default">
<sql>SELECT id, name, school, grade FROM students WHERE grade IN (:code)</sql>
<param name="code" paramType="ARRAY" sqlType="STRING" type="IN" optional="false" />
<result outputType="json">{ "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } { "students":{ "student":[ { "name":"$name", "school":"$school", "grade":"$grade" } ] } } </result>
</query>
</data>
Note that I have specified a <resource method="POST" path="student">. resources are for RESTfull invocations, and <operation name="selectTEST" returnRequestStatus="true"> are for SOAP calls. I have created both RestFul and SOAP services for your reference. Following is how you can invoke them.
Note: Here I'm directly calling the Dataservice.
RestFull Invocation.
curl --location --request POST 'http://localhost:8290/services/RESTDataService/student' \
--header 'Content-Type: application/json' \
--data-raw '{
"students": {
"code": ["AXB23", "ADR40"]
}
}'
SOAP Service Call
curl --location --request POST 'http://localhost:8290/services/RESTDataService/selectTEST' \
--header 'Action: selectTEST' \
--header 'Content-Type: text/xml' \
--header 'Accept: application/json' \
--data-raw '<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope/">
<soap:Body>
<code>AXB23</code>
<code>ADR40</code>
</soap:Body>
</soap:Envelope>'
Note: In a XML message an Array is depicted as repeating elements as shown above.