REST API FILES-UDIT

002-Basic-HTTP-Routes/data.json

@@ -137,7 +137,7 @@
     {
         "name": "Jabba Desilijic Tiure",
         "height": "175",
-        "mass": "1,358",
+        "mass": "1358",
         "hair_color": "n/a",
         "skin_color": "green-tan, brown",
         "eye_color": "orange",

002-Basic-HTTP-Routes/index.js

@@ -1,17 +1,47 @@
 var http = require('http');
 var url = require('url');
-var data = require('./data.json');
-
-http.createServer(function (request, response) {
-  response.writeHead(200, {
-    'Content-type': 'text/plain'
-  });
-  response.write('Hello Node JS Server Response');
-  response.end();
-
+var data = require('./data.json');  //database file
+var temp;
+http.createServer(function (request, response) {     //inline declaration of function
   const {pathname,query} = url.parse(request.url);
-  console.log(data);
-  console.log("pathname", pathname);
-  console.log("queryParameters", query);
-
-}).listen(7000);
+  console.log("DECODED QUERY- "+query); //decoded query
+  var query_list= query.split('&'); //separate the joined queries
+  var result=data;
+  var a=query_list.length;
+  var pairs;   //key-value pairs
+  var q;   //stores the individual queries
+  for(var i=0;i<a;i++)
+  {   if((query_list[i].includes("=%27")) || (query_list[i].includes("=%22")))  // if it includes =" or ='
+      {
+          pairs=query_list[i].split("=");   //eg name="a"
+          q=decodeURI(pairs[1]).slice(1,-1);    //decoding the value portion   //reomoving the inverted commas
+          result=result.filter(function (wor) {
+            if(wor[pairs[0]]!='unknown' && wor[pairs[0]]!='n/a'){  //if there is a value
+              return wor[pairs[0]].includes(q);
+            }
+      });
+     }
+    else{
+        pairs=query_list[i].split("=");
+        q=decodeURI(pairs[1]) ;
+        var o=JSON.parse(q);
+        if(pairs[1].includes("lt")==true&&pairs[1].includes("gt")==true)
+                result=result.filter(result=>((parseInt(result[pairs[0]])<parseInt(o.lt))&&(parseInt(result[pairs[0]])>parseInt(o.gt))));  
+              else 
+                if(pairs[1].includes("gt"))
+                  result=result.filter(temp=>parseInt(temp[pairs[0]])>parseInt(o.gt));    
+                else
+                  result=result.filter(temp=>(parseInt(temp[pairs[0]])<parseInt(o.lt)));    
+ }
+}   // console.log("pathname", pathname); console.log("queryParameters", query); 
+     if(result.length==0)  // if data isnt found
+     { response.writeHead(404, {   //error code
+       'Content-type': 'application/JSON'});
+       response.end();
+     }
+     else{
+     response.writeHead(200, { 'Content-type': 'application/JSON'});    //search successful 
+     response.write(JSON.stringify(result,null,'\t '));  //displaying the result
+    response.end();
+     }
+   }).listen(7000);