How to Save Multiple Records using Web flux and JDBC? - spring-boot

Question

I am trying to build a simple web application using spring boot - webflux (functional endpoints) & jdbc. The app receives payload in XML format (which is some details of 1 employee). Code given below persists data for one employee as expected.
public Mono<String> createData(final Mono<Record> inputMono) {
final String someID = UUID.randomUUID().toString();
final Mono<Integer> asyncUpdate = inputMono.flatMap(record -> {
return beginUpdate(dataSource,
sqlStatementSharedAbove).withStatementEnricher(stmt -> {
stmt.setString(1, record.getFirstName());
stmt.setString(2, record.getLastName());
stmt.setInt(3, record.getAddress());
}).build();
});
return asyncUpdate.doOnSuccess(affectedRows -> LOGGER.debug("Added
{} rows with ID {}", affectedRows, someID))
.map(affectedRows -> someID);
}
Now I need to save similar data for multiple employees (modifying the XML payload to contain multiple employee records)
In non-webflux world, I would just iterate over the list of employee objects and call this function for each one of them.
How can I achieve the same in webflux?
Essentially I am looking to handle a saveAll functionality with webflux and given that I have to work with JDBC (I do understand that JDBC doesn't support non blocking paradigm and Mongo supports a saveAll API but I have certain constraints as to what DB i can use and therefore must make this work with JDBC)
Thank you.

Answer 1

Following code works to save multiple employee records. Essentially it needs a Flux (of Employees) to work with -
public Mono<Void> createData(final Flux<Record> inputFlux) {
return inputFlux.flatMap(record -> {
return beginUpdate(dataSource,
sqlStatementSharedAbove).withStatementEnricher(stmt -> {
stmt.setString(1, record.getFirstName());
stmt.setString(2, record.getLastName());
stmt.setInt(3, record.getAddress());
}).build().doOnSuccess(affectedRows -> LOGGER.info("Added rows{}", affectedRows));
}).then;
}