Consider adding options parameter to ReactiveMongoTemplate.insertAll

Hi folks

Today I faced with need to execute ReactiveMongoTemplate.insertAll with unordered: false parameter since it allows to skip duplicates while inserting (mongo doc). Unfortunately, there is no insertAll with options, however it could be implemented with ReactiveMongoTemplate.execute like this

reactiveMongoTemplate.execute(myCollection) { it ->
            it.insertMany(listOf(), InsertManyOptions().ordered(false))
                .toMono()
                .map { result -> result.insertedIds.size }
        }
            .next()

I don't like this approach since it requires to manually map entity to Document

Could you please consider implementing insertAll with InsertManyOptions parameter in ReactiveMongoTemplate?

Thank you

Start with the ReactiveMongoTemplate.insertAll API described in the issue, then compare it with the shown ReactiveMongoTemplate.execute and InsertManyOptions usage. Define the requested overload's behavior around ordered inserts and entity-to-document mapping, and verify that insertAll accepts and applies the options.