Want to know a better way to do bulk insertion in typeorm without save()

I’m doing a bulk insert using repository.insert(...) in TypeORM, and I’m trying to figure out the best way to associate inserted records with their related metadata for follow-up inserts in other tables.
Here’s the situation:
I’m inserting a list of Product entities where each product has a unique name. I’m also maintaining a Map<string, { product, tags, locations }> where the key is the product’s name, and the value includes all the related data that will be inserted into other tables (like product_tags, product_locations, etc.) that depend on the generated productId.
I use this code:

 const productsToInsert = [...productMap.values()].map(entry => entry.product);
const insertResult = await dataSource.getRepository(Product).insert(productsToInsert);

 insertResult.generatedMaps.forEach((p, idx) => {
   // Trying to get the name to map back to productMap
   const productName = p.name; // not available here
   const id = p.id;
 });

The issue is that generatedMaps only contains columns that were generated (e.g., id), and not columns like name that were explicitly set. So I can’t match back the inserted ID with the original product using name, which was my key.>
Is there a better way to track which inserted ID belongs to which original entity when using .insert()?

• I want to get the ids after insertion so i can map the ids with name and then insert in other tables too where we need this id for foreign key.