chore: Added support for exchangerate api

Author: Redume

config.example.hjson

@@ -34,6 +34,10 @@
         duckduckgo: {
           "base_url": https://duckduckgo.com/js/spice/currency/1/
         }
+        exchangeratapi: {
+          api_key: TOKEN_EXCHANGERATE
+          base_url: https://v6.exchangerate-api.com/v6/
+        }
       }
       fiat:
       [

parser/services/exchangerate-api.js

@@ -0,0 +1,48 @@
+const axios = require('axios');
+const config = require('../../shared/config/src/main.js')();
+
+module.exports = {
+    info: {
+        name: 'ExchangeRateAPI',
+        type: 'fiat',
+    },
+    parseCurrencies: async () => {
+        const promises = config['currency']['fiat'].map((fromCurrency) =>
+            config['currency']['fiat'].map((convCurrency) => {
+                if (fromCurrency === convCurrency) return Promise.resolve(null);
+
+                const exchangeratapi =
+                    config['currency']['services']['exchangeratapi'];
+                const serviceName = module.exports.info.name;
+
+                return axios
+                    .get(
+                        `${exchangeratapi['base_url']}/${exchangeratapi['api_key']}/pair/${fromCurrency}/${convCurrency}`,
+                    )
+                    .then((res) => {
+                        const data = res.data;
+
+                        console.log(
+                            `Data fetched from ${serviceName}: ${fromCurrency} -> ${convCurrency}, Rate: ${data.conversion_rate}`,
+                        );
+
+                        return {
+                            from_currency: fromCurrency,
+                            conv_currency: convCurrency,
+                            rate: data.conversion_rate,
+                            date: new Date(),
+                        };
+                    })
+                    .catch((err) => {
+                        console.error(err);
+                        return null;
+                    });
+            }),
+        );
+
+        const flattenedPromises = promises.flat();
+        const results = await Promise.all(flattenedPromises);
+
+        return results.filter((result) => result !== null);
+    },
+};