Develop A Search Feature - React Native / PHP

Develop a search feature for a react native app and a php back end that queries a database. 1. Develop a php back end that queries a database for two type of searches. a) Let the user search for local products close to their GPS location. Return business name, address, item, price and distance from user GPS location. b) Return a list of campaigns including campaign name, campaign code, company. 2. Develop front end react native that lets the user provide the following to back end a)Let the user enter the name of a product and the max distance which the must search. Provide the GPS location to the back end and the name of the product. b) Let the user scan a code with their camera and send the barcode to the back end when hit done, load the results returned by the back end as a list in ajax call and display. c) Alternatively let the user enter the campaign name / code in a search box and load the results returned by the back end as a list in a ajax call and display.