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lightning-backend/src/api/explorer/general.routes.ts

@@ -2,12 +2,14 @@ import config from '../../config';
 import { Express, Request, Response } from 'express';
 import nodesApi from './nodes.api';
 import channelsApi from './channels.api';
+import statisticsApi from './statistics.api';
 class GeneralRoutes {
   constructor() { }
 
   public initRoutes(app: Express) {
     app
     .get(config.MEMPOOL.API_URL_PREFIX + 'search', this.$searchNodesAndChannels)
+    .get(config.MEMPOOL.API_URL_PREFIX + 'statistics', this.$getStatistics)
   ;
   }
 
@@ -27,6 +29,15 @@ class GeneralRoutes {
       res.status(500).send(e instanceof Error ? e.message : e);
     }
   }
+
+  private async $getStatistics(req: Request, res: Response) {
+    try {
+      const statistics = await statisticsApi.$getStatistics();
+      res.json(statistics);
+    } catch (e) {
+      res.status(500).send(e instanceof Error ? e.message : e);
+    }
+  }
 }
 
 export default new GeneralRoutes();

lightning-backend/src/api/explorer/statistics.api.ts

@@ -0,0 +1,17 @@
+import logger from '../../logger';
+import DB from '../../database';
+
+class StatisticsApi {
+  public async $getStatistics(): Promise<any> {
+    try {
+      const query = `SELECT UNIX_TIMESTAMP(added) AS added, channel_count, node_count, total_capacity FROM statistics ORDER BY id DESC`;
+      const [rows]: any = await DB.query(query);
+      return rows;
+    } catch (e) {
+      logger.err('$getStatistics error: ' + (e instanceof Error ? e.message : e));
+      throw e;
+    }
+  }
+}
+
+export default new StatisticsApi();