WordPress REST API integration

We are looking for someone to help us use the Wordpress REST API for our PWA. It is connected to our WP Multisite network and pulls information from the WP database. Please respond to this post with how many hours you think this will take or you can bid this project as a flat rate. We will need to have this project done within the next couple of weeks. Below are the details: General Requirements Must Extend the WordPress REST API We want to leverage the WordPress REST API, so consequently we also want to avoid creating “endpoints” via publicly accessible posts. Avoid Root Endpoints The API would run on a multisite, since there are multiple university sites being served with their own isolated environments. We want the API local to each website, not the root, so there is no need to manage site IDs to identify each website. For example, instead of an api call to fetch content looking like '[login to view URL]', we want '[login to view URL]' Leverage WP REST Cache If possible, we want to cache the responses of these endpoints so subsequent requests are processed faster. There exists a plugin that will cache WP REST API endpoints. Required APIs Schemas for Custom Post Types The purpose of the API is to send locations, associated location media, and tours to the web app. We need post types with the following data: type Tour = { id: string, title: string, locations: Array<Location> } type Location = { id: string, name: string, website: string, phone: string, email: string, coverImage: url, description: string, coordinates: {long: number, lat: number}, onCampus: boolean } type Media = { id: string, description: string, url: string } GET /tours Should return a list of all tours for a university Request: N / A Response: Array<Tour> GET /locations Should return a list of all locations for a university Request: N / A Response: Array<Location> GET /media/{id} Should return all media associated with a given Location. Request: id: string Response: Array<Media>