Added minified URL schema as model

backend/models/minifed_urls.js

@@ -0,0 +1,22 @@
+import mongoose from 'mongoose';
+const { Schema } = mongoose;
+
+//build a schema
+const minifiedUrlSchema = new Schema({
+    originalUrl: {
+        type: String,
+        required: true
+    },
+    minifiedUrl: {
+        type: String,
+        required: true
+    },
+    views: {
+        type: Number
+    },
+    createdAt: Number,
+    updatedAt: Number
+
+});
+//make a model using this schema and export it
+exports.default = mongoose.model('minified_url_model', minifiedUrlSchema);