background information: I wish to implement dataloader to an external service call (done with graphql-binding). So it's interesting that, in the dataloader, the batch loader function returns a single call to fetch all my queries at once.

Well I do not understand the question as much as I should, but I'm currently running all my updates and creations in parallel using promises:

const promises = dogs.map(data => storeDog(data, ctx));
    // Waits for all of the queries to finish and stores it to a variable that gets passed out of our API
    dogsWithIds = await Promise.all(promises);

and it creates multiple dogs at once in parallel.