add database seeder to backend (#64) (#91)

* add database seeder to backend (#64)

* fix LGTM alerts (#64)

* move seeder file to helpers folder

backend/helpers/seeder.js

@@ -0,0 +1,75 @@
+require("dotenv").config({ path: __dirname + "/./../.env" })
+const mongoose = require("mongoose")
+const axios = require("axios")
+const Character = require("../models/character.model")
+const Episode = require("../models/episode.model")
+const database_url = process.env.DATABASE_URL
+
+seed = async () => {
+  connectDb()
+  await seedCharacters()
+  await seedEpisodes()
+  closeDb()
+}
+
+connectDb = async () => {
+  mongoose
+    .connect(database_url, {
+      useNewUrlParser: true,
+      useUnifiedTopology: true,
+    })
+    .then(() => {
+      console.log("Database Connected")
+      return true
+    })
+    .catch((err) => {
+      console.error("Error : Cannot connect to Database " + err)
+      return false
+    })
+}
+
+closeDb = async () => {
+  mongoose.connection.close()
+}
+
+seedCharacters = async () => {
+  let charactersEndpoint = "https://finalspaceapi.com/api/v0/character"
+  let characters
+  await axios
+    .get(charactersEndpoint)
+    .then((res) => (characters = res.data))
+    .then(() => console.log("Characters data Fetched"))
+    .catch((err) => console.log("Error: characters data didn't fetched " + err))
+
+  try {
+    for (var character of characters) {
+      let newCharacter = new Character(character)
+      await newCharacter.save()
+    }
+    console.log("Characters seeded to database successfully")
+  } catch (err) {
+    console.log("Error: characters didn't seeded to database " + err)
+  }
+}
+
+seedEpisodes = async () => {
+  let episodesEndpoint = "https://finalspaceapi.com/api/v0/episode"
+  let episodes
+  await axios
+    .get(episodesEndpoint)
+    .then((res) => (episodes = res.data))
+    .then(() => console.log("Episodes data Fetched"))
+    .catch((err) => console.log("Error: episodes data didn't fetched " + err))
+
+  try {
+    for (var episode of episodes) {
+      let newEpisode = new Episode(episode)
+      await newEpisode.save()
+    }
+    console.log("Episodes seeded to database successfully")
+  } catch (err) {
+    console.log("Error: episodes didn't seeded to database " + err)
+  }
+}
+
+seed()

backend/package.json

@@ -8,11 +8,13 @@
         "start": "node server.js",
         "prod": "NODE_ENV=production node server.js",
         "lint": "eslint .",
-        "lint:fix": "eslint --fix --ext .js,.jsx ."
+        "lint:fix": "eslint --fix --ext .js,.jsx .",
+        "seed":"node ./helpers/seeder.js"
     },
     "author": "Ashutosh K Singh",
     "license": "BSD-3-Clause",
     "dependencies": {
+      "axios": "^0.20.0",
         "cors": "^2.8.5",
         "express": "^4.17.1",
         "express-rate-limit": "^5.1.3",