diff --git a/.eslintrc.js b/.eslintrc.js
index 9720b2b..4b612ec 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -9,6 +9,7 @@ module.exports = {
         "sourceType": "module"
     },
     "rules": {
+        "no-console": "off",
         "indent": ["error", 4],
         "indent": ["warn", 2],
         "linebreak-style": [
diff --git a/package-lock.json b/package-lock.json
index 0cffed9..74a26ea 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -678,6 +678,29 @@
       "integrity": "sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==",
       "dev": true
     },
+    "aws-sdk": {
+      "version": "2.512.0",
+      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.512.0.tgz",
+      "integrity": "sha512-ioZZ6dTiZyETpJJ3aYy81OS3idnU5n8eyFssvgMXdsX8PRJ3KJZ/dQAdCD/680xDt3ymRNClGvlkPcOLPNlDKQ==",
+      "requires": {
+        "buffer": "4.9.1",
+        "events": "1.1.1",
+        "ieee754": "1.1.8",
+        "jmespath": "0.15.0",
+        "querystring": "0.2.0",
+        "sax": "1.2.1",
+        "url": "0.10.3",
+        "uuid": "3.3.2",
+        "xml2js": "0.4.19"
+      },
+      "dependencies": {
+        "sax": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.1.tgz",
+          "integrity": "sha1-e45lYZCyKOgaZq6nSEgNgozS03o="
+        }
+      }
+    },
     "aws-sign2": {
       "version": "0.7.0",
       "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
@@ -1369,6 +1392,21 @@
         "node-int64": "^0.4.0"
       }
     },
+    "bson": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.1.tgz",
+      "integrity": "sha512-jCGVYLoYMHDkOsbwJZBCqwMHyH4c+wzgI9hG7Z6SZJRXWr+x58pdIbm2i9a/jFGCkRJqRUr8eoI7lDWa0hTkxg=="
+    },
+    "buffer": {
+      "version": "4.9.1",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz",
+      "integrity": "sha1-bRu2AbB6TvztlwlBMgkwJ8lbwpg=",
+      "requires": {
+        "base64-js": "^1.0.2",
+        "ieee754": "^1.1.4",
+        "isarray": "^1.0.0"
+      }
+    },
     "buffer-equal-constant-time": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz",
@@ -2666,6 +2704,11 @@
       "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.2.tgz",
       "integrity": "sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q=="
     },
+    "events": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/events/-/events-1.1.1.tgz",
+      "integrity": "sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ="
+    },
     "exec-sh": {
       "version": "0.2.2",
       "resolved": "https://registry.npmjs.org/exec-sh/-/exec-sh-0.2.2.tgz",
@@ -4722,6 +4765,11 @@
         "safer-buffer": ">= 2.1.2 < 3"
       }
     },
+    "ieee754": {
+      "version": "1.1.8",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.8.tgz",
+      "integrity": "sha1-vjPUCsEO8ZJnAfbwii2G+/0a0+Q="
+    },
     "ignore": {
       "version": "4.0.6",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-4.0.6.tgz",
@@ -6142,6 +6190,11 @@
         "merge-stream": "^1.0.1"
       }
     },
+    "jmespath": {
+      "version": "0.15.0",
+      "resolved": "https://registry.npmjs.org/jmespath/-/jmespath-0.15.0.tgz",
+      "integrity": "sha1-o/Iiqarp+Wb10nx5ZRDigJF2Qhc="
+    },
     "js-tokens": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
@@ -6294,6 +6347,11 @@
         "safe-buffer": "^5.0.1"
       }
     },
+    "kareem": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/kareem/-/kareem-2.3.0.tgz",
+      "integrity": "sha512-6hHxsp9e6zQU8nXsP+02HGWXwTkOEw6IROhF2ZA28cYbUk4eJ6QbtZvdqZOdD9YPKghG3apk5eOCvs+tLl3lRg=="
+    },
     "kind-of": {
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
@@ -6559,6 +6617,12 @@
         "mimic-fn": "^1.0.0"
       }
     },
+    "memory-pager": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/memory-pager/-/memory-pager-1.5.0.tgz",
+      "integrity": "sha512-ZS4Bp4r/Zoeq6+NLJpP+0Zzm0pR8whtGPf1XExKLJBAczGMnSi3It14OiNCStjQjM6NU1okjQGSxgEZN8eBYKg==",
+      "optional": true
+    },
     "merge": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/merge/-/merge-1.2.1.tgz",
@@ -6673,6 +6737,93 @@
         "minimist": "0.0.8"
       }
     },
+    "mongodb": {
+      "version": "3.2.7",
+      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.2.7.tgz",
+      "integrity": "sha512-2YdWrdf1PJgxcCrT1tWoL6nHuk6hCxhddAAaEh8QJL231ci4+P9FLyqopbTm2Z2sAU6mhCri+wd9r1hOcHdoMw==",
+      "requires": {
+        "mongodb-core": "3.2.7",
+        "safe-buffer": "^5.1.2"
+      }
+    },
+    "mongodb-core": {
+      "version": "3.2.7",
+      "resolved": "https://registry.npmjs.org/mongodb-core/-/mongodb-core-3.2.7.tgz",
+      "integrity": "sha512-WypKdLxFNPOH/Jy6i9z47IjG2wIldA54iDZBmHMINcgKOUcWJh8og+Wix76oGd7EyYkHJKssQ2FAOw5Su/n4XQ==",
+      "requires": {
+        "bson": "^1.1.1",
+        "require_optional": "^1.0.1",
+        "safe-buffer": "^5.1.2",
+        "saslprep": "^1.0.0"
+      }
+    },
+    "mongoose": {
+      "version": "5.6.9",
+      "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-5.6.9.tgz",
+      "integrity": "sha512-NRW5UJSmwyJxK+MRHmq+dQKgZqMZCpW1aPkpBZESqrrgF2J15Flo/4K3RYkSSQY7oKhfbgqZTPo+J1snJ3hJ3w==",
+      "requires": {
+        "async": "2.6.2",
+        "bson": "~1.1.1",
+        "kareem": "2.3.0",
+        "mongodb": "3.2.7",
+        "mongodb-core": "3.2.7",
+        "mongoose-legacy-pluralize": "1.0.2",
+        "mpath": "0.6.0",
+        "mquery": "3.2.1",
+        "ms": "2.1.2",
+        "regexp-clone": "1.0.0",
+        "safe-buffer": "5.1.2",
+        "sift": "7.0.1",
+        "sliced": "1.0.1"
+      },
+      "dependencies": {
+        "async": {
+          "version": "2.6.2",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.2.tgz",
+          "integrity": "sha512-H1qVYh1MYhEEFLsP97cVKqCGo7KfCyTt6uEWqsTBr9SO84oK9Uwbyd/yCW+6rKJLHksBNUVWZDAjfS+Ccx0Bbg==",
+          "requires": {
+            "lodash": "^4.17.11"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+        }
+      }
+    },
+    "mongoose-legacy-pluralize": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/mongoose-legacy-pluralize/-/mongoose-legacy-pluralize-1.0.2.tgz",
+      "integrity": "sha512-Yo/7qQU4/EyIS8YDFSeenIvXxZN+ld7YdV9LqFVQJzTLye8unujAWPZ4NWKfFA+RNjh+wvTWKY9Z3E5XM6ZZiQ=="
+    },
+    "mpath": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/mpath/-/mpath-0.6.0.tgz",
+      "integrity": "sha512-i75qh79MJ5Xo/sbhxrDrPSEG0H/mr1kcZXJ8dH6URU5jD/knFxCVqVC/gVSW7GIXL/9hHWlT9haLbCXWOll3qw=="
+    },
+    "mquery": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/mquery/-/mquery-3.2.1.tgz",
+      "integrity": "sha512-kY/K8QToZWTTocm0U+r8rqcJCp5PRl6e8tPmoDs5OeSO3DInZE2rAL6AYH+V406JTo8305LdASOQcxRDqHojyw==",
+      "requires": {
+        "bluebird": "3.5.1",
+        "debug": "3.1.0",
+        "regexp-clone": "^1.0.0",
+        "safe-buffer": "5.1.2",
+        "sliced": "1.0.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        }
+      }
+    },
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -7799,6 +7950,11 @@
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
       "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
     },
+    "querystring": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/querystring/-/querystring-0.2.0.tgz",
+      "integrity": "sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA="
+    },
     "randomatic": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/randomatic/-/randomatic-3.1.0.tgz",
@@ -7972,6 +8128,11 @@
         "safe-regex": "^1.1.0"
       }
     },
+    "regexp-clone": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/regexp-clone/-/regexp-clone-1.0.0.tgz",
+      "integrity": "sha512-TuAasHQNamyyJ2hb97IuBEif4qBHGjPHBS64sZwytpLEqtBQ1gPJTnOaQ6qmpET16cK14kkjbazl6+p0RRv0yw=="
+    },
     "regexpp": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/regexpp/-/regexpp-2.0.0.tgz",
@@ -8114,6 +8275,22 @@
         "resolve-from": "^1.0.0"
       }
     },
+    "require_optional": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz",
+      "integrity": "sha512-qhM/y57enGWHAe3v/NcwML6a3/vfESLe/sGM2dII+gEO0BpKRUkWZow/tyloNqJyN6kXSl3RyyM8Ll5D/sJP8g==",
+      "requires": {
+        "resolve-from": "^2.0.0",
+        "semver": "^5.1.0"
+      },
+      "dependencies": {
+        "resolve-from": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
+          "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c="
+        }
+      }
+    },
     "resolve": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.8.1.tgz",
@@ -8555,11 +8732,19 @@
         }
       }
     },
+    "saslprep": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/saslprep/-/saslprep-1.0.3.tgz",
+      "integrity": "sha512-/MY/PEMbk2SuY5sScONwhUDsV2p77Znkb/q3nSVstq/yQzYJOH/Azh29p9oJLsl3LnQwSvZDKagDGBsBwSooag==",
+      "optional": true,
+      "requires": {
+        "sparse-bitfield": "^3.0.3"
+      }
+    },
     "sax": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
-      "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==",
-      "dev": true
+      "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
     },
     "semver": {
       "version": "5.5.1",
@@ -8674,6 +8859,11 @@
       "integrity": "sha512-vFwSUfQvqybiICwZY5+DAWIPLKsWO31Q91JSKl3UYv+K5c2QRPzn0qzec6QPu1Qc9eHYItiP3NdJqNVqetYAww==",
       "dev": true
     },
+    "sift": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/sift/-/sift-7.0.1.tgz",
+      "integrity": "sha512-oqD7PMJ+uO6jV9EQCl0LrRw1OwsiPsiFQR5AR30heR+4Dl7jBBbDLnNvWiak20tzZlSE1H7RB30SX/1j/YYT7g=="
+    },
     "signal-exit": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
@@ -8700,6 +8890,11 @@
         "is-fullwidth-code-point": "^2.0.0"
       }
     },
+    "sliced": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/sliced/-/sliced-1.0.1.tgz",
+      "integrity": "sha1-CzpmK10Ewxd7GSa+qCsD+Dei70E="
+    },
     "snakeize": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/snakeize/-/snakeize-0.1.0.tgz",
@@ -8848,6 +9043,15 @@
       "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
       "dev": true
     },
+    "sparse-bitfield": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",
+      "integrity": "sha1-/0rm5oZWBWuks+eSqzM004JzyhE=",
+      "optional": true,
+      "requires": {
+        "memory-pager": "^1.0.2"
+      }
+    },
     "spdx-correct": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.0.0.tgz",
@@ -9654,6 +9858,22 @@
       "integrity": "sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=",
       "dev": true
     },
+    "url": {
+      "version": "0.10.3",
+      "resolved": "https://registry.npmjs.org/url/-/url-0.10.3.tgz",
+      "integrity": "sha1-Ah5NnHcF8hu/N9A861h2dAJ3TGQ=",
+      "requires": {
+        "punycode": "1.3.2",
+        "querystring": "0.2.0"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "1.3.2",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.3.2.tgz",
+          "integrity": "sha1-llOgNvt8HuQjQvIyXM7v6jkmxI0="
+        }
+      }
+    },
     "url-parse-lax": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-1.0.0.tgz",
@@ -9935,6 +10155,20 @@
       "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==",
       "dev": true
     },
+    "xml2js": {
+      "version": "0.4.19",
+      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.19.tgz",
+      "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
+      "requires": {
+        "sax": ">=0.6.0",
+        "xmlbuilder": "~9.0.1"
+      }
+    },
+    "xmlbuilder": {
+      "version": "9.0.7",
+      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz",
+      "integrity": "sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0="
+    },
     "xmlhttprequest": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz",
diff --git a/package.json b/package.json
index 371a918..3e91484 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
   "author": "",
   "dependencies": {
     "@slack/web-api": "^5.0.1",
+    "aws-sdk": "^2.512.0",
     "body-parser": "^1.18.3",
     "cheerio": "^1.0.0-rc.2",
     "cors": "^2.8.4",
@@ -22,6 +23,7 @@
     "dotenv": "^6.0.0",
     "express": "^4.16.3",
     "firebase-admin": "^7.3.0",
+    "mongoose": "^5.6.9",
     "node-cron": "^2.0.3",
     "redis": "^2.8.0",
     "request": "^2.88.0",
diff --git a/src/controllers/notes.js b/src/controllers/notes.js
new file mode 100644
index 0000000..e3d0db9
--- /dev/null
+++ b/src/controllers/notes.js
@@ -0,0 +1,62 @@
+/* eslint-disable no-console */
+import { Notes } from '../core/mongo'
+import { getS3file } from '../core/aws'
+import { SEMESTERS, BRANCHES, SUBJECTS } from '../utils/constants'
+
+export const showNotes = async (req, res) => {
+  try {
+    const { subject, module } = req.body
+    const notes = await Notes.find({ subject: subject, module: module })
+    const note_data = await Promise.all(notes.map(async (note) => {
+      const url = await getS3file('cse/s2/coa/1/note1.pdf')
+      return { note_details: note, url: url }
+    }))
+    res.json({
+      notes: note_data
+    })
+  } catch (err) {
+    console.error(err)
+  }
+}
+
+export const addNote = async (req, res) => {
+  try {
+    const { subject, module, link } = req.body
+    const note_data = {
+      subject,
+      module,
+      link,
+    }
+    const notes = new Notes(note_data)
+    await notes.save()
+    res.json({ status: 'Saved successfully' })
+  } catch (err) {
+    console.error(err)
+  }
+}
+
+export const showSemesters = async (req, res) => {
+  try {
+    res.json({ semesters: SEMESTERS })
+  } catch (err) {
+    console.error(err)
+  }
+}
+
+export const showBranches = async (req, res) => {
+  try {
+    res.json({ branches: BRANCHES })
+  } catch (err) {
+    console.error(err)
+  }
+}
+
+export const showSubjects = async (req, res) => {
+  try {
+    const { semester, branch } = req.body
+    const subjects = SUBJECTS.filter((s) => (s.semester === semester && s.branch === branch))
+    res.json({ subjects: subjects })
+  } catch (err) {
+    console.error(err)
+  }
+}
diff --git a/src/controllers/notifications.js b/src/controllers/notifications.js
index 4877248..8298322 100644
--- a/src/controllers/notifications.js
+++ b/src/controllers/notifications.js
@@ -1,3 +1,4 @@
+/* eslint-disable no-console */
 import { getNotifications } from '../utils/redis'
 
 const showNotifications = async (req, res) => {
diff --git a/src/core/aws.js b/src/core/aws.js
new file mode 100644
index 0000000..33df370
--- /dev/null
+++ b/src/core/aws.js
@@ -0,0 +1,19 @@
+import aws from 'aws-sdk'
+require('dotenv').config()
+
+const s3 = new aws.S3()
+aws.config.region = 'us-east-1'
+
+const Bucket =  process.env.S3_BUCKET
+
+export const getS3file = (key) => {
+
+  const params = { Bucket, Key: key, Expires: 20 }
+
+  return new Promise((resolve, reject) => {
+    s3.getSignedUrl('getObject', params, (err, url) => {
+      if (err) reject(err)
+      else resolve(url)
+    })
+  })
+}
diff --git a/src/core/mongo.js b/src/core/mongo.js
new file mode 100644
index 0000000..59670c3
--- /dev/null
+++ b/src/core/mongo.js
@@ -0,0 +1,16 @@
+/* eslint-disable no-console */
+import mongoose from 'mongoose'
+import noteSchema from '../schema/note'
+require('dotenv').config()
+
+mongoose.connect(process.env.MONGO_URL, {useNewUrlParser: true})
+
+mongoose.connection.on('error', (error) => {
+  console.error(error)
+})
+
+mongoose.connection.once('open', () => {
+  console.log('connected to mongo')
+})
+
+export const Notes = mongoose.model('notes', noteSchema)
diff --git a/src/jobs/notification.js b/src/jobs/notification.js
index 32384a2..cb89d19 100644
--- a/src/jobs/notification.js
+++ b/src/jobs/notification.js
@@ -5,7 +5,6 @@ import { saveNotifications } from '../utils/redis'
 import { sendMessage } from '../core/slack.js'
 
 const fetchNotifications = async () => {
-  console.log("Fetching Notifications")
   sendMessage('Fetching Notifications')
   
   const options = {
@@ -17,7 +16,6 @@ const fetchNotifications = async () => {
   try {
     const response = await rp(options)
     const notifications = parseNotifications(response)
-    console.log("Fetching Notifications", notifications)
     saveNotifications(notifications)
   } catch (e) {
     console.error(e)
diff --git a/src/routes/index.js b/src/routes/index.js
index d8e5b00..f33dd3e 100644
--- a/src/routes/index.js
+++ b/src/routes/index.js
@@ -1,6 +1,7 @@
 import { Router } from 'express'
 import getStudentDetails from '../controllers/studentDetails'
 import getNotifications from '../controllers/notifications'
+import { showNotes, showBranches, showSemesters, showSubjects, addNote } from '../controllers/notes'
 import { validateRequest } from '../middleware'
 
 const router = Router()
@@ -8,5 +9,10 @@ const router = Router()
 router.get('/', (req, res) => res.json({ status: 'working' }))
 router.post('/api/v1/data', validateRequest, getStudentDetails)
 router.get('/api/v1/notifications', getNotifications)
+router.post('/api/v1/notes/subjects', showSubjects)
+router.post('/api/v1/notes/semesters', showSemesters)
+router.post('/api/v1/notes/branches', showBranches)
+router.post('/api/v1/notes/notes', showNotes)
+router.post('/api/v1/notes.save', addNote)
 
 export default router
diff --git a/src/schema/note.js b/src/schema/note.js
new file mode 100644
index 0000000..19c90d1
--- /dev/null
+++ b/src/schema/note.js
@@ -0,0 +1,9 @@
+import { Schema } from 'mongoose'
+
+const noteSchema = new Schema({
+  subject: 'String',
+  module: 'Number',
+  link: 'String'
+})
+
+export default noteSchema
diff --git a/src/utils/constants.js b/src/utils/constants.js
new file mode 100644
index 0000000..e057f1c
--- /dev/null
+++ b/src/utils/constants.js
@@ -0,0 +1,23 @@
+export const SEMESTERS = {
+  s1_2: 'Semester 1 & 2',
+  s3: 'Semester 3',
+  s4: 'Semester 4',
+  s5: 'Semester 5',
+  s6: 'Semester 6',
+  s7: 'Semester 7',
+  s8: 'Semester 8'
+}
+
+export const BRANCHES = {
+  cse: 'CSE'
+}
+
+export const SUBJECTS = [
+  {
+    key: 'coa',
+    name: 'Computer Organisation and Architecture',
+    semester: SEMESTERS.s3,
+    branch: BRANCHES.cse,
+    modules: 4
+  },
+]
diff --git a/src/utils/slugify.js b/src/utils/slugify.js
index df01d07..08fc646 100644
--- a/src/utils/slugify.js
+++ b/src/utils/slugify.js
@@ -6,8 +6,8 @@ export default (string) => {
     .replace(/\s+/g, '-') 
     .replace(p, c => b.charAt(a.indexOf(c))) 
     .replace(/&/g, '-and-')
-    .replace(/[^\w\-]+/g, '')
-    .replace(/\-\-+/g, '-')
+    .replace(/[^\w-]+/g, '')
+    .replace(/--+/g, '-')
     .replace(/^-+/, '')
     .replace(/-+$/, '')
 }