Creating an http-endpoint

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6

Start with a simple query and move up from there

import {response} from 'wix-http-functions';
import wixData from 'wix-data';

// You need to suppress authorization if your database has permissions
let full_suppress = {
   "suppressAuth": true,
   "suppressHooks": true
};

export function get_filter(request) {
    // First check if a query parameter is present in the request or not
    if(request.query) {
        return wixData.query("contact01") //remember to put a return here
        .find(full_suppress) //suppress authorization checks
        .then( (res) => {
             // Now check the length of the items retrieved
             if(res.items.length > 0) {
                 // Items found so return a 200 HTTP response
                 let options = {
                     status: 200,
                     body: res.items
                 };
                 return response(options); // similar to ok()
            } else {
                // No items found, return a 404 HTTP response
                let options = {
                     status: 404,
                     body: 'No items found'
                };
                return response(options); // similar to notFound()
            }
        })   
        .catch( (error) => {
             // This will catch any error with the wixdata query
             let options = {
                status: 500,
                body: error
             };
             return response(options); // similar to serverError()
        });
    } else {
         // Send a 400 response if no query params are found
         let options = {
            status: 400,
            body: 'No query parameters found'
         };
         return response(options); // similar to badRequest()
    }
}

Read my comments, this is a basic scenario on how to create a http function and get database items using an api call