Export command

commands/export/index.js

@@ -0,0 +1,39 @@
+const fs = require('fs');
+
+export const command = 'export <type>';
+export const description = 'Export data to json or csv';
+
+export const action = async ({ args, jsonToCsv, logger }) => {
+    const [type] = args._
+    const dataDir = global.rootPath + "/data";
+
+    // if data directory doesn't exists, create it
+    if (!fs.existsSync(dataDir)) {
+        fs.mkdirSync(dataDir);
+    }
+
+    switch (type) {
+        case 'json':
+            fs.writeFile(dataDir + "/db.json", JSON.stringify(global.data), function (err) {
+                if (err) {
+                    return logger.error(err);
+                }
+            });
+
+            logger.info('Successfully exported data.');
+            break;
+        case 'csv':
+            const csv = await jsonToCsv.parse(global.data.students);
+
+            fs.writeFile(dataDir + "/students.csv", csv, function (err) {
+                if (err) {
+                    return logger.error(err);
+                }
+            });
+
+            logger.info('Successfully exported data.');
+            break;
+        default:
+            logger.error('You need to specify a valid type (json or csv).');
+    }
+};