Handle backend errors

src/controllers/channel.controller.ts

@@ -53,8 +53,16 @@ export default class ChannelController {
 
     try {
       return await this.lndService.getChannel(request.params.channelId);
-    } catch {
-      return reply.notFound();
+    } catch(e) {
+      if (e.response && e.response.data.code === 2) {
+        return reply.notFound();
+      } else {
+        let msg;
+        if (e.errno && e.errno === -3008) {
+          msg = "Backend can not be reached";
+        }
+        return reply.internalServerError(msg);
+      }
     }
   }
 

src/controllers/node.controller.ts

@@ -42,8 +42,16 @@ export default class NodeController {
 
     try {
       return await this.lndService.getNode(request.params.pubKey);
-    } catch {
-      return reply.notFound();
+    } catch(e) {
+      if (e.response && e.response.data.code === 5) {
+        return reply.notFound();
+      } else {
+        let msg;
+        if (e.errno && e.errno === -3008) {
+          msg = "Backend can not be reached";
+        }
+        return reply.internalServerError(msg);
+      }
     }
   }
 

src/services/lnd-service.ts

@@ -117,7 +117,8 @@ export class LndService {
       this.ws.send('{}');
     });
     this.ws.on('error', (err: Error) => {
-      console.log(`Error: ${err}`);
+      console.log(err);
+      console.log(`WS Error: ${err}`);
     });
     this.ws.on('ping', (_event: Buffer) => {});
     this.ws.on('message', (event: WebSocket.RawData) => {