sms-gateway/app/Http/Controllers/EnquiryController.php

<?php

namespace App\Http\Controllers;

use App\Models\Enquiry;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;

class EnquiryController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        return "ENQUIRY API IS WORKING";
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {

        $messages = [
            'name.required' => 'The name field is required.',
            'email.required' => 'The email field is required.',
            'email.email' => 'Please enter a valid email address.',
            'phone.required' => 'The phone number field is required.',
            'phone.regex' => 'The phone number format is invalid. It should contain 10 to 15 digits.',
        ];

        $validatedData = $request->validate([
            'name' => 'required|string|max:255',
            'email' => 'required|email|max:255',
            'phone' => 'required|regex:/^[0-9]{10,15}$/',
        ], $messages);

        if($validatedData){

            Enquiry::create([
                'name' => $request->name,
                'email' => $request->email,
                'phone' => $request->phone
            ]);

            return response()->json(['message' => 'ok'], 200);
        }


        return response()->json(['message' => 'error'], 400);

    }

    /**
     * Display the specified resource.
     */
    public function show(string $id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, string $id)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(string $id)
    {
        //
    }
}