Laravel Nginx redirect old urls - php

Question

I have redeveloped a php site using the laravel framework. I now want to redirect the old urls like /products.php?id_categ=1&id_brand=4&id_products=5 to /products/product_name
I have alreay made a route that will accept any url with product.php
Route::get('products.php','ProductController#oldLinks');
The function oldLinks in ProductController finds the product slug based on the id and displays the appropriate product.
This all works in the local environment when I do php artisan serve but it will not work in the production server which uses nginx.
How do I get about solving this issue?
Here is the nginx conf
server {
listen 80 default_server;
listen [::]:80 default_server;
# SSL configuration
#
# listen 443 ssl default_server;
# listen [::]:443 ssl default_server;
#
# Note: You should disable gzip for SSL traffic.
# See: https://bugs.debian.org/773332
#
# Read up on ssl_ciphers to ensure a secure configuration.
# See: https://bugs.debian.org/765782
#
# Self signed certs generated by the ssl-cert package
# Don't use them in a production server!
#
# include snippets/snakeoil.conf;
root /var/www/laravel/public;
# Add index.php to the list if you are using PHP
index index.php index.html index.htm index.nginx-debian.html;
server_name laravel.com www.laravel.com;
location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
try_files $uri $uri/ /index.php?$query_string;
}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ \.php$ {
include snippets/fastcgi-php.conf;
#
# # With php7.0-cgi alone:
# fastcgi_pass 127.0.0.1:9000;
# With php7.0-fpm:
fastcgi_pass unix:/run/php/php7.0-fpm.sock;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
location ~ /\.ht {
deny all;
}
}