feat: create geocoding function

src/config.ts

@@ -18,3 +18,4 @@ export const REDIS_HOST = process.env.REDIS_HOST || 'localhost';
 export const REDIS_PORT = parseNumber(process.env.REDIS_PORT) || 6379;
 export const REDIS_PASSWORD = process.env.REDIS_PASSWORD || '';
 export const GOOGLE_RECAPTCHA_SECRET_KEY = process.env.GOOGLE_RECAPTCHA_SECRET_KEY || '';
+export const GOOGLE_MAPS_API_KEY = process.env.GOOGLE_MAPS_API_KEY || '';

src/routes/jobs.ts

@@ -3,6 +3,7 @@ import type { FromSchema } from 'json-schema-to-ts';
 import { Job } from '../entities/Job';
 import { Container } from 'typedi';
 import { EntityManager } from 'typeorm';
+import GeocodingService from "../services/GeocodingService";
 
 const findJobParams = {
     type: 'object',
@@ -35,7 +36,9 @@ export const jobRoutes: FastifyPluginAsync = async (app) => {
         handler: async (req, reply) => {
             const idOrIds = req.query['ids[]'];
 
-            const ids = Array.isArray(idOrIds) ? idOrIds : [idOrIds];
+            const geoCodingService = new GeocodingService(app.orm);
+
+            const ids = Array.isArray(idOrIds) ? idOrIds : [idOrIds]
 
             const manager = Container.get(EntityManager);
             return await manager.findByIds(Job, ids);

src/services/GeocodingService.ts

@@ -0,0 +1,45 @@
+import {GOOGLE_MAPS_API_KEY} from "../config";
+import fetch from "cross-fetch";
+import {Connection} from "typeorm";
+import {Location} from "../entities/Location";
+import {getManager} from "typeorm";
+
+export default class GeocodingService {
+    private orm: Connection;
+
+    constructor (orm: Connection) {
+        this.orm = orm;
+    }
+
+    public async getCoordsFromAddress (address: string) {
+        // Check the database for any coords associated with this address.
+        const location = await getManager()
+            .createQueryBuilder(Location, "locations")
+            .where("locations.address = :address", {
+                address: '1840 S Weller Ave, Springfield, MO 65804'
+            })
+            .getOne();
+
+        // Otherwise, ask Google for the coords of this address.
+        if (!coords) {
+            const urlAddress = encodeURIComponent(address.trim());
+            const requestUrl = `https://maps.googleapis.com/maps/api/geocode/json?address=${urlAddress}&key=${GOOGLE_MAPS_API_KEY}`
+            coords = {
+                lat: '0',
+                lng: '0',
+            }
+            try {
+                const geocodingRes = await fetch(requestUrl)
+                    .then((res) => res.json());
+                const coordRes = geocodingRes.results[0].geometry.location
+                coords.lat = coordRes.lat;
+                coords.lng = coordRes.lng;
+                // TODO: save results to database
+            } catch (error) {
+                console.log(error);
+            }
+        }
+
+        return true;
+    }
+}