Just some Typescript tips: This method should not try to delete and retrieve and upsert documents into it, violating the Single Responsibility Principle. I'd break down the retrieve and delete to a method called

deleteIfExists

. Also, I'd avoid using so many

any

type defs, I'd probably use a Generic for data, and use it in the

batchData

Generic slot. Also, I'd use the

CollectionCreateSchema

specified in here

export interface CollectionCreateSchema {
  name: string;
  default_sorting_field?: string;
  fields?: CollectionFieldSchema[];
  symbols_to_index?: string[];
  token_separators?: string[];
  enable_nested_fields?: boolean;
  metadata?: object;
  voice_query_model?: {
    model_name?: string;
  };
}

for the

schema

type. Finally, maybe pass the batch size as an argument to the function, instead of hard coding it? And maybe use

Array.prototype.forEach

instead of the

for...of

iterator? Just a personal preference at this point. Not really a Typesense specific problem, rather than some Typescript points