Javascript – How to use the selected value from a dropdown component as the 'filter' value in another component?

I have a component that creates a dropdown where the values are a list of policy areas that are pulled from a SQL server database/tables. The selected policy area is then saved into a useState called selectedPolicyArea. I then have a second component that I want to display the stakeholder who is in charge of the policy area, where whenever the selected policy area is changed the stakeholder name will change with it. For example: if Policy Area 1 is selected I expect the stakeholder name John Doe to be the only thing in the stakeholder box, but then if Policy Area 8 is selected then I would expect the stakeholder should switch to Jane Doe.

Dropdown Component and Current Stakeholder component

What console looks like when value is selected from dropdown and what the data looks like being pulled in from the stakeholder component

Here is the code for my Dropdown Component (I did raiase the state up to the parent component so I can use props as this selected value is used in another component as well)

import React, { useState, useEffect } from 'react';

const DropdownGetPolicyArea = (props) => {
 const [policyAreaName, setPolicyAreaName] = useState([]);
 const [selectedPolicyArea, setSelectedPolicyArea] = useState('');

 useEffect(() => {
    fetch('/GetPolicyAreaName', {
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
        'Accept': 'application/json'
      }
    })
      .then(res => res.json())
      .then(data => setPolicyAreaName(data))
      .catch(error => console.error('Error fetching data: ', error));
 }, []);

 const handleChange = (event) => {
    setSelectedPolicyArea(event.target.value);
    props.setSelectedPolicyArea(event.target.value)
 };

console.log(selectedPolicyArea)

 return (
    <div className='DropdownGetPolicyArea'>
      <h2>Policy Area Name</h2>
      <select  value={selectedPolicyArea} onChange={handleChange}>
        <option  value=''>...</option>
        {policyAreaName.map((category) => (
          <option key={category.Policy_Area_ID} value={category.Policy_Area_Name}>
            {category.Policy_Area_Name}
          </option>
        ))}
      </select>
    </div>
 );
};


export default DropdownGetPolicyArea;

Here is the code for my currentPolicyStakeholder component

import React, { useEffect, useState } from 'react';

const CurrentPolicyStakeholder = (props) => {
    const [stakeholder, setStakeholder] = useState([]);

    useEffect(() => {
        const fetchStakeholder = async () => {
            try {
                const response = await fetch('/GetStakeholder');
                const data = await response.json();
                setStakeholder(data);
            } catch (error) {
                console.error('Error fetching stakeholder:', error);
            }
        };
        fetchStakeholder();
    }, []);

    console.log(stakeholder);

        return(
            <div>
                <ul>{stakeholder.Employee_Preferred_Full_Name}{props.selectedPolicyArea}</ul>

            {stakeholder.map((stakeholders) => (
                <option>
                    {stakeholders.Stake_Table_PrimaryKey_ID} 
                    --
                    {stakeholders.Employee_Preferred_Full_Name}
                    --
                    {stakeholders.Employee_ID}
                </option>
            
        ))}
            </div>
    );

}
    
 
export default CurrentPolicyStakeholder;

My 2 APIs are:

app.get('/GetPolicyAreaName', async(req,res) =>{
    console.log('policy area called');
    const policyAreaName = await dbOperations.getPolicyAreaName()
    res.send(policyAreaName.recordset)
    console.log('called');
})


app.get('/GetStakeholder', async(req,res) =>{
    console.log('stakeholder called');
    const stakeholderName = await dbOperations.getCurrentActivePolicyStakeholder()
    res.send(stakeholderName.recordset)
    console.log('called');
})

The 2 queries where the data is being pulled from:

const getPolicyAreaName = async(policyAreaName) => {
    try {
        let pool = await sql.connect(config);
        let policyAreaName = await pool.request().query(`SELECT Policy_Area_ID,Policy_Area_Name from Policy_Area`)
        return policyAreaName;
    }
    catch(error) {
        console.log(error);
    }
}


const getCurrentActivePolicyStakeholder = async() => {
    try {
        let pool = await sql.connect(config);
        let stakeholderName = await pool.request()
        .query(`SELECT S.[Stakeholder_ID]
                ,S.[Employee_ID]
                ,S.[Employee_Preferred_Full_Name]
                ,S.[Stakeholder_Role_ID]
                ,S.[Stake_Table_Name]
                ,S.[Stake_Table_PrimaryKey_ColName]
                ,S.[Stake_Table_PrimaryKey_ID]
                ,PA.Policy_Area_Name
        
  
                FROM [LegoTest].[dbo].[Stakeholder] S
                join [LegoTest].[dbo].[Policy_Area] PA  ON    PA.Policy_Area_ID = S.Stake_Table_PrimaryKey_ID

                WHERE   S.Stake_Table_Name = 'Policy_Area'`
            )
        return stakeholderName;
    }
    catch(error) {
        console.log(error);
    }
}

I attempted to do some conditional rendering with if/else and also the ternary operator but could only ever get it to return the entire list of names from the stakeholder table from the database. I had thought that I could potentially use template literals in the getCurrentActivePolicyStakeholder SQL query under the ‘WHERE’ clause but I was unsuccessful at implementing that.

Any and all help/advice is greatly appreciated!