[FIXED] Not able to delete or find records by id in mongoDB

Issue

I am saving customer records in Mongo DB, i am using Angular 6 as a front end. While saving, i am not sending Id value, so automatically Mongo is creating id and saving records.

I am using MongoRepository in Java for saving. But while doing "deleteById" or "findById", its not able to search or delete those records.

Can you help.

Angular Customer Model

---

export interface Customer {
    id : string,
    custId : number,
    customerName : string,
    email: string,
    phone : string,
    age: number,
    city : string,
    state : string,
    createdDate : Date
}

User.service.ts

---

deleteCustomerData(id): Observable<Customer>{
    console.log(this.deleteCustomerUrl  + id);
    return this.http.delete<Customer>(this.deleteCustomerUrl + id);
  }

Java Controller

---

@DeleteMapping("/deleteCustomer/{id}")
    public String deleteCustomerById(@PathVariable String id) {
        //ObjectId objId = new ObjectId(id);
        customerService.deleteCustomerById(id);
        return "deleted customer by id"+ id;
    }

Java Service

---

public void deleteCustomerById(String id) {
        customerRepository.deleteById(id);
    }

Java Model

---

@Document(collection="Customer")
public class Customer {

    @Id

    private String Id;

    private String customerName;
    private int age;
    private String city;
    private String state;
    private int custId;

}

Java Repository

---

package com.tivo.extract.config.repository;

import org.springframework.data.mongodb.repository.MongoRepository;

import com.tivo.extract.config.model.Customer;

public interface CustomerRepository extends MongoRepository<Customer, String>{

}

Solution

The issue is the data type of primary field need to be changed from String to ObjectId. Mongo db uses ObjecId as primary key type by default.

Answered By - GnanaJeyam
Answer Checked By - Candace Johnson (JavaFixing Volunteer)