feat(server): Made a new Root with available currencies to collect and first and last collection date

nginx.conf

@@ -52,6 +52,17 @@ http {
             proxy_set_header X-Forwarded-Proto $scheme;
         }
         
+        location /api/metadata {
+            limit_req zone=kekkai burst=4;
+    
+            add_header Access-Control-Allow-Origin *;
+            proxy_pass http://server_backend;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
         location /api/getChart {
             limit_req zone=kekkai burst=4;
 

server/main.js

@@ -21,9 +21,11 @@ const fastify = require("fastify")({
 
 const getRateRoute = require("./routes/getRate.js");
 const HomeRoute = require("./routes/home.js");
+const getMetadata = require("./routes/metadata.js");
 
 fastify.register(getRateRoute);
 fastify.register(HomeRoute);
+fastify.register(getMetadata);
 
 fastify.setNotFoundHandler(function (res, reply) {
     return reply.status(404).send({

server/routes/metadata.js

@@ -0,0 +1,18 @@
+const pool = require('../../shared/database/src/postgresql.js');
+const config = require('../../shared/config/src/main.js')();
+
+module.exports = async function metadata(fastify) {
+    fastify.get('/api/metadata/', async function (req, res) {
+        const first_date = await pool.query('SELECT * FROM currency ORDER BY date LIMIT 1');
+        const last_date = await pool.query('SELECT * FROM currency ORDER BY date DESC LIMIT 1');
+        
+        return res.status(200).send({
+            'first_date': first_date.rows[0]?.date ? first_date.rows[0]?.date : 'None',
+            'last_date': last_date.rows[0]?.date ? last_date.rows[0]?.date : 'None',
+            'currencies': {
+                'crypto': config['currency']['crypto'],
+                'fiat': config['currency']['fiat'],
+            }
+        })
+    });
+}