How to list data from firebase in React V9

Question

Good Morning I need to retrieve Data from firebase realtime DB to my react project . How can I write the code in .js file to retrieve structure like the below assuming that I have Barcode as input.

 {
  "Product1": {
    "Barcode": "11",
    "Name": "Cream",
    "Price": "30LE"
  },
  "Product2": {
    "Barcode": 22,
    "Name": "Vitamine",
    "Price": "40LE"
  }
}

I don't know what to write to retrieve the price of certain barcode ? the barcode will be the searching criteria and it will change based on the input from react project what I should write retrieve the price of certain barcode ?