Adding data model/ Schema

| fullurl | shorturl | clicks |

+ shortid-library to shorten url/get id from url

models/shortUrl.js

@@ -0,0 +1,29 @@
+//to connect to mongodb
+const mongoose = require("mongoose");
+
+// to create short identifier
+//has .generate() function that we will pass to shorturl as default
+const shortId = require("shortid");
+
+//db schema
+// | fullurl | shorturl | clicks |
+const shortUrlSchema = new mongoose.Schema({
+  fullurl: {
+    type: String,
+    required: true,
+  },
+  shorturl: {
+    type: String,
+    required: true,
+    default: shortId.generate,
+  },
+  clicks: {
+    type: Number,
+    required: true,
+    default: 0,
+  },
+});
+
+//now exporting this to hook model with database
+// model name, schema name
+modules.exports = mongoose.model("shortUrl", shortUrlSchema);

package-lock.json

@@ -991,6 +991,11 @@
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
       "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
     },
+    "nanoid": {
+      "version": "2.1.11",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-2.1.11.tgz",
+      "integrity": "sha512-s/snB+WGm6uwi0WjsZdaVcuf3KJXlfGl2LcxgwkEwJF0D/BWzVWAZW/XY4bFaiR7s0Jk3FPvlnepg1H1b1UwlA=="
+    },
     "negotiator": {
       "version": "0.6.2",
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
@@ -1342,6 +1347,14 @@
       "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
       "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
     },
+    "shortid": {
+      "version": "2.2.15",
+      "resolved": "https://registry.npmjs.org/shortid/-/shortid-2.2.15.tgz",
+      "integrity": "sha512-5EaCy2mx2Jgc/Fdn9uuDuNIIfWBpzY4XIlhoqtXF6qsf+/+SGZ+FxDdX/ZsMZiWupIWNqAEmiNY4RC+LSmCeOw==",
+      "requires": {
+        "nanoid": "^2.1.0"
+      }
+    },
     "sift": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/sift/-/sift-7.0.1.tgz",

package.json

@@ -23,7 +23,8 @@
   "dependencies": {
     "ejs": "^3.1.5",
     "express": "^4.17.1",
-    "mongoose": "^5.10.8"
+    "mongoose": "^5.10.8",
+    "shortid": "^2.2.15"
   },
   "devDependencies": {
     "nodemon": "^2.0.4"