How to match child data from firebase Realtime database V9 using ReactJS

Hello I am new and learning ReactJS. I am writing the code for matching the model text from my code to firebase Realtime database model text. The problem i got in this is I have store my model text in state and define it like this var modelTxt = this.state.models. and write my firebase database query like this. and import it like this import { getDatabase, ref, get, orderByChild } from "firebase/database";

my database structure is like this :

{
070921210001{
"Model": "modelName"
}
}

My code

var modelTxt = this.state.models
console.log(modelTxt)

 const dbRef = ref(getDatabase("/"));
 get(orderByChild(dbRef, `{"Model"}`)).equalTo(modelTxt).once("value", function (snapshot) {
            if (snapshot.exists()) {
              console.log(snapshot.val());
            } else {
              console.log("No data available");
            }
          })
            .catch((error) => {
              console.error(error);
            });