feat: create Tag resource with first route

src/controllers/EntriesController.js

@@ -1,4 +1,4 @@
-export class EntriesController {
+export default class EntriesController {
     entriesService
 
     constructor(entriesService) {

src/controllers/TagsController.js

@@ -0,0 +1,18 @@
+export default class TagsController {
+	tagsService
+
+	constructor(tagsService) {
+		this.tagsService = tagsService
+	}
+
+	getAllTags = (req, res) => {
+		const tags = this.tagsService.getAllTags()
+		if (!tags) {
+			return res.status(404).json({
+				message: `Tags list could not be retrieved`,
+			})
+		}
+
+		return res.json(tags)
+	}
+}

src/index.js

@@ -1,11 +1,14 @@
 import express from "express"
 import entries from "./routes/entries.js"
+import tags from "./routes/tags.js"
+
 const app = express()
 
 const port = process.env.PORT || 3000
 
 app.use(express.json())
 app.use("/entries", entries)
+app.use("/tags", tags)
 
 app.listen(port, () => {
     console.info(`INFO Server running at http://localhost:${port}`)

src/routes/entries.js

@@ -1,6 +1,6 @@
 import express from "express"
-import { EntriesService } from "../services/EntriesService.js"
-import { EntriesController } from "../controllers/EntriesController.js"
+import EntriesService from "../services/EntriesService.js"
+import EntriesController from "../controllers/EntriesController.js"
 import database from "../db/connection.js"
 
 const router = express.Router()

src/routes/tags.js

@@ -0,0 +1,12 @@
+import express from "express"
+import TagsService from "../services/TagsService.js"
+import TagsController from "../controllers/TagsController.js"
+import database from "../db/connection.js"
+
+const router = express.Router()
+const tagsService = new TagsService(database)
+const tagsController = new TagsController(tagsService)
+
+router.get("/", tagsController.getAllTags)
+
+export default router

src/services/EntriesService.js

@@ -1,7 +1,7 @@
 import { sortByDate, sortByTitle } from "../lib/sorters.js"
 import { GET_ALL_ENTRIES, GET_ENTRY } from "../sql/entries.js"
 
-export class EntriesService {
+export default class EntriesService {
     database
 
     constructor(database) {

src/services/TagsService.js

@@ -0,0 +1,18 @@
+import { GET_ALL_TAGS } from "../sql/tags.js"
+
+export default class TagsService {
+    database
+
+    constructor(database) {
+        this.database = database
+    }
+
+    sortTags = (tags) => {
+        return tags.sort((a, b) => a.name.localeCompare(b.name))
+    }
+
+    getAllTags = () => {
+        const tags = this.sortTags(this.database.prepare(GET_ALL_TAGS).all()).flatMap((tag) => tag.name)
+        return { count: tags.length, tags: tags }
+    }
+}

src/sql/tags.js

@@ -0,0 +1,3 @@
+const GET_ALL_TAGS = `SELECT name FROM tags`
+
+export { GET_ALL_TAGS }