I need more data on API

You can use the size and from parameters in your query to paginate the results. For example, to get the first 1000 documents, you can use the following query:

public function test() { 
    return Http::get('localhost:9200/test/_search?size=1000&from=0')['hits']['hits']; 
}

To get the next 1000 documents, you can use the following query:

public function test() { 
    return Http::get('localhost:9200/test/_search?size=1000&from=1000')['hits']['hits']; 
}

You can keep incrementing the from parameter by 1000 until you have retrieved all the documents.