add examples for 2.5 2.6

Author: dipamsen

module2/05_querying_database/index.js

@@ -0,0 +1,28 @@
+constexpress=require("express");
+constDatastore=require("nedb");
+
+constapp=express();
+app.listen(3000,()=>console.log("listening at 3000"));
+app.use(express.static("public"));
+app.use(express.json({limit: "1mb"}));
+
+constdatabase=newDatastore("database.db");
+database.loadDatabase();
+
+app.get("/api",(request,response)=>{
+database.find({},(err,data)=>{
+if(err){
+response.end();
+return;
+}
+response.send(data);
+});
+});
+
+app.post("/api",(request,response)=>{
+constdata=request.body;
+consttimestamp=Date.now();
+data.timestamp=timestamp;
+database.insert(data);
+response.json(data);
+});