WSO2 MI How to create an Insert or Update PUT resource? - wso2

Question

I want to create a PUT resource in WSO2 Micro Integrator, so I can either insert or update event records, but it's not even accepting my http request. Could you help me configure this correctly?
What I was expecting was that when I'd call something like this, it would insert in batch into the database.
curl --location --request PUT 'http://wso2-mi.mkwtf.com/services/APIDataService/eventRecord?calendar_date=2022-12-01' \
--header 'Content-Type: application/xml' \
--data-raw '
<event_record_list>
<event_record>
<event_type>1000124</event_type>
<event_count>217140</event_count>
</event_record>
<event_record>
<event_type>1000127</event_type>
<event_count>1567</event_count>
<event_record>
</event_record>
<event_type>1000129</event_type>
<event_count>31</event_count>
</event_record>
</event_record_list>'
But in reality it responds with this:
<axis2ns52:DataServiceFault xmlns:axis2ns52="http://ws.wso2.org/dataservice">
<axis2ns52:current_params>{event_type=1000124, event_count=217140}</axis2ns52:current_params>
<axis2ns52:source_data_service>
<axis2ns52:data_service_name>APIDataService</axis2ns52:data_service_name>
<axis2ns52:description></axis2ns52:description>
<axis2ns52:location>/home/wso2/qa/wso2mi/tmp/carbonapps/-1234/1671624403635APICompositeExporter_1.0.0.car/APIDataService_1.0.0/APIDataService-1.0.0.dbs</axis2ns52:location>
<axis2ns52:default_namespace>http://ws.wso2.org/dataservice</axis2ns52:default_namespace>
</axis2ns52:source_data_service>
<axis2ns52:ds_code>INCOMPATIBLE_PARAMETERS_ERROR</axis2ns52:ds_code>
<axis2ns52:current_request_name>_puteventrecord</axis2ns52:current_request_name>
</axis2ns52:DataServiceFault>
However, when I make this request, I'm able to make the request, and it returns me with 202, but I'm only able to insert or update one row at a time.
curl --location --request PUT 'http://wso2-mi.mkwtf.com/services/APIDataService/eventRecord?calendar_date=2022-12-01&event_type=1000124&event_count=217140' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'calendar_date=2022-12-01' \
--data-urlencode 'event_type=1000124' \
--data-urlencode 'event_count=217140'
Here is the Data Service definition:
<data name="APIDataService" serviceNamespace="" serviceGroup="" transports="http https local">
<description />
<config id="postgresDataService">
<property name="carbon_datasource_name">APIPostgres</property>
</config>
<query id="eventRecord" useConfig="postgresDataService">
<sql>
INSERT INTO event_record(calendar_date, event_type, event_count)
VALUES (:calendar_date, :event_type, :event_count)
ON CONFLICT (calendar_date, event_type)
DO UPDATE SET event_count = EXCLUDED.event_count
</sql>
<param name="calendar_date" sqlType="date" />
<param name="event_type" sqlType="integer" />
<param name="event_count" sqlType="integer" />
<properties>
<property name="forceJDBCBatchRequests">true</property>
</properties>
</query>
<resource method="PUT" path="eventRecord">
<call-query href="eventRecord">
<with-param name="calendar_date" query-param="calendar_date" />
<with-param name="event_type" query-param="event_type" />
<with-param name="event_count" query-param="event_count" />
</call-query>
</resource>
</data>

Answer 1

Due to a limitation of MI[1], you cannot use both the request body and URL params to call a dataservice. When the content type is set in the request it tries to dispatch to the data service operation based on the request body and ignores the URL params. As a result, you will observe the INCOMPATIBLE_PARAMETERS_ERROR error. Therefore you will need to pass all the required parameters of the eventRecord operation in your request body. Can you try to send a request as follows,
curl --location --request PUT 'http://wso2-mi.mkwtf.com/services/APIDataService/eventRecord' \
--header 'Content-Type: application/xml' \
--data-raw '
<event_record_list>
<event_record>
<calendar_date>2022-12-01</calendar_date>
<event_type>1000124</event_type>
<event_count>217140</event_count>
</event_record>
<event_record>
<calendar_date>2022-12-01</calendar_date>
<event_type>1000127</event_type>
<event_count>1567</event_count>
<event_record>
</event_record>
<calendar_date>2022-12-01</calendar_date>
<event_type>1000129</event_type>
<event_count>31</event_count>
</event_record>
</event_record_list>'
[1] - https://github.com/wso2/product-ei/issues/2811