init

.dockerignore

@@ -0,0 +1,10 @@
+node_modules
+npm-debug.log
+Dockerfile*
+docker-compose*
+.dockerignore
+.git
+.gitignore
+README.md
+LICENSE
+.vscode

.env.example

@@ -0,0 +1,6 @@
+host=0.0.0.0
+user=postgres
+password=password
+port=5432
+database=railway
+FALLBACK_URL=https://shortener.tzgyn.com

.gitignore

@@ -0,0 +1,43 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# local env files
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# vercel
+.vercel
+
+**/*.trace
+**/*.zip
+**/*.tar.gz
+**/*.tgz
+**/*.log
+package-lock.json
+**/*.bun

.prettierrc.yaml

@@ -0,0 +1,15 @@
+---
+printWidth: 80
+tabWidth: 4
+useTabs: true
+semi: false
+singleQuote: true
+quoteProps: consistent
+jsxSingleQuote: true
+trailingComma: es5
+bracketSpacing: true
+bracketSameLine: true
+arrowParens: always
+htmlWhitespaceSensitivity: strict
+vueIndentScriptAndStyle: false
+singleAttributePerLine: true

Dockerfile

@@ -0,0 +1,16 @@
+FROM docker.io/oven/bun
+
+RUN mkdir /shortener-backend
+WORKDIR /shortener-backend
+
+COPY ./package.json ./
+COPY ./bun.lockb ./
+
+RUN bun install --production
+
+COPY . .
+
+EXPOSE 3000
+ENV NODE_ENV production
+
+ENTRYPOINT [ "bun", "run", "./src/index.ts" ]

README.md

@@ -0,0 +1,15 @@
+# Elysia with Bun runtime
+
+## Getting Started
+To get started with this template, simply paste this command into your terminal:
+```bash
+bun create elysia ./elysia-example
+```
+
+## Development
+To start the development server run:
+```bash
+bun run dev
+```
+
+Open http://localhost:3000/ with your browser to see the result.

docker-compose-dev.yml

@@ -0,0 +1,15 @@
+---
+# docker-compose.yml
+version: '3.9'
+services:
+  app:
+    image: oven/bun
+    container_name: linkshortener_elysia_dev
+    # override default entrypoint allows us to do `bun install` before serving
+    entrypoint: []
+    # execute bun install before we start the dev server in watch mode
+    command: /bin/sh -c 'bun install && bun run --watch src/index.ts'
+    # expose the right ports
+    ports: [3000:3000]
+    # setup a host mounted volume to sync changes to the container
+    volumes: [./:/home/bun/app]

package.json

@@ -0,0 +1,22 @@
+{
+  "name": "elysia",
+  "version": "1.0.50",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "dev": "bun run --watch src/index.ts"
+  },
+  "dependencies": {
+    "@elysiajs/cors": "^0.6.0",
+    "@types/pg": "^8.10.2",
+    "elysia": "latest",
+    "kysely": "^0.26.3",
+    "magic-regexp": "^0.7.0",
+    "nanoid": "^5.0.1",
+    "pg": "^8.11.3",
+    "zod": "^3.22.2"
+  },
+  "devDependencies": {
+    "bun-types": "latest"
+  },
+  "module": "src/index.js"
+}

src/auth.ts

@@ -0,0 +1,53 @@
+import { nanoid } from 'nanoid'
+import { db } from './database'
+
+export const signup = async (
+	email: string,
+	username: string,
+	password: string,
+	password_confirm: string
+) => {
+	if (password !== password_confirm) {
+		return { error: 'password is not the same' }
+	}
+
+	if (password.length < 8) {
+		return { error: 'password should be at least length 8' }
+	}
+
+	try {
+		await db
+			.insertInto('user')
+			.values({
+				uuid: nanoid(16),
+				email,
+				username,
+				password: await Bun.password.hash(password),
+			})
+			.execute()
+		return { error: undefined }
+	} catch (error) {
+		console.log(error)
+		return { error: 'error' }
+	}
+}
+
+export const login = async (email: string, password: string) => {
+	const userArray = await db
+		.selectFrom('user')
+		.selectAll()
+		.where('user.email', '=', email)
+		.execute()
+
+	if (userArray.length < 1) {
+		return { error: 'Invalid User' }
+	}
+
+	const user = userArray[0]
+
+	if (await Bun.password.verify(password, user.password)) {
+		return { user }
+	} else {
+		return { error: 'Incorrect Credentials' }
+	}
+}

src/database.ts

@@ -0,0 +1,18 @@
+import { Database } from "./types";
+import { Pool } from "pg";
+import { Kysely, PostgresDialect } from "kysely";
+
+const dialect = new PostgresDialect({
+  pool: new Pool({
+    database: Bun.env.database ?? "link-shortener",
+    host: Bun.env.host ?? "0.0.0.0",
+    user: Bun.env.user ?? "postgres",
+    password: Bun.env.password ?? "password",
+    port: parseInt(Bun.env.port ?? "") ?? 5432,
+    max: 10,
+  }),
+});
+
+export const db = new Kysely<Database>({
+  dialect,
+});

src/index.ts

@@ -0,0 +1,187 @@
+import { Elysia, t } from 'elysia'
+import { nanoid } from 'nanoid'
+import { db } from './database'
+import { createLinkSchema } from './zodSchema'
+import { cors } from '@elysiajs/cors'
+import { jsonArrayFrom } from 'kysely/helpers/postgres'
+import { login, signup } from './auth'
+
+const fallback_url = Bun.env.FALLBACK_URL ?? 'https://shortener.tzgyn.com'
+
+const app = new Elysia().use(cors())
+
+app.get('/', () => 'Hello Elysia')
+app.get('/invalid', () => 'Invalid Shortener')
+
+app.get('/link', async () => {
+	const shorteners = await db
+		.selectFrom('shortener')
+		.leftJoin('visitor', 'visitor.shortener_id', 'shortener.id')
+		.select(({ fn }) => [
+			'shortener.id',
+			'shortener.link',
+			'shortener.code',
+			'shortener.created_at',
+			fn.count<number>('visitor.id').as('visitor_count'),
+		])
+		.groupBy('shortener.id')
+		.execute()
+
+	return { shorteners }
+})
+
+app.post('/link', async ({ body, set }) => {
+	const createLink = createLinkSchema.safeParse(body)
+
+	if (!createLink.success) {
+		set.status = 400
+		return { message: 'Invalid Link', body }
+	}
+
+	const uuid = nanoid(10)
+
+	await db
+		.insertInto('shortener')
+		.values({
+			link: createLink.data.link,
+			code: uuid,
+		})
+		.execute()
+
+	return { message: 'Success' }
+})
+
+app.get(
+	'/:shortenerCode',
+	async ({ params: { shortenerCode }, set, request }) => {
+		const ip = request.headers.get('x-forwarded-for')
+
+		const geolocation = await (
+			await fetch(`https://api.ipbase.com/v2/info?ip=${ip}`)
+		).json()
+
+		try {
+			const shortener = await db
+				.selectFrom('shortener')
+				.selectAll()
+				.where('code', '=', shortenerCode)
+				.orderBy('created_at', 'desc')
+				.execute()
+
+			const visitor_data = {
+				shortener_id: shortener[0].id,
+				country: geolocation.data.location.country.name as string,
+				country_code: geolocation.data.location.country
+					.alpha2 as string,
+			}
+
+			await db.insertInto('visitor').values(visitor_data).execute()
+
+			if (!shortener.length) {
+				set.redirect = '/invalid'
+				return
+			}
+
+			set.redirect = shortener[0].link
+		} catch {
+			set.redirect = fallback_url
+		}
+	}
+)
+
+app.get('/link/:shortenerCode', async ({ params: { shortenerCode } }) => {
+	try {
+		const shorteners = await db
+			.selectFrom('shortener')
+			.select((shortener) => [
+				'id',
+				'code',
+				'link',
+				'created_at',
+				jsonArrayFrom(
+					shortener
+						.selectFrom('visitor')
+						.select([
+							'visitor.created_at as visited_at',
+							'visitor.country_code',
+						])
+						.whereRef('visitor.shortener_id', '=', 'shortener.id')
+				).as('visitors'),
+			])
+			.where('code', '=', shortenerCode)
+			.execute()
+
+		const visitors = await db
+			.selectFrom('visitor')
+			.select(({ fn }) => [
+				'visitor.country_code',
+				'visitor.country',
+				fn.count<number>('visitor.id').as('visitor_count'),
+			])
+			.where('visitor.shortener_id', '=', shorteners[0].id)
+			.groupBy(['visitor.country_code', 'visitor.country'])
+			.execute()
+
+		return { shorteners, visitors }
+	} catch {
+		return { error: true }
+	}
+})
+
+app.post(
+	'/signup',
+	async ({ body, set }) => {
+		const { email, username, password, password_confirm } = body
+
+		const { error } = await signup(
+			email,
+			username,
+			password,
+			password_confirm
+		)
+
+		if (error) {
+			set.status = 400
+			return { error }
+		}
+
+		return { message: 'User Successfully Created' }
+	},
+	{
+		body: t.Object({
+			username: t.String(),
+			email: t.String(),
+			password: t.String(),
+			password_confirm: t.String(),
+		}),
+	}
+)
+
+app.post(
+	'/login',
+	async ({ body, set }) => {
+		const { email, password } = body
+		const { user, error } = await login(email, password)
+
+		if (error) {
+			set.status = 400
+			return { error }
+		} else {
+			return user
+		}
+	},
+	{
+		body: t.Object({
+			email: t.String(),
+			password: t.String(),
+		}),
+	}
+)
+
+app.listen(3000)
+
+console.log(
+	`🦊 Elysia is running at ${app.server?.hostname}:${app.server?.port}`
+)
+
+export type App = typeof app

src/types.ts

@@ -0,0 +1,50 @@
+import {
+	ColumnType,
+	Generated,
+	Insertable,
+	Selectable,
+	Updateable,
+} from 'kysely'
+
+export type Timestamp = ColumnType<Date, Date | string, Date | string>
+
+export interface Database {
+	shortener: ShortenerTable
+	visitor: VisitorTable
+	user: UserTable
+}
+
+export interface ShortenerTable {
+	id: Generated<number>
+	link: string
+	code: string
+	created_at: ColumnType<Date, string | undefined, never>
+}
+
+export type Shortener = Selectable<ShortenerTable>
+export type NewShortener = Insertable<ShortenerTable>
+export type ShortenerUpdate = Updateable<ShortenerTable>
+
+export interface VisitorTable {
+	id: Generated<number>
+	shortener_id: number
+	country: string
+	country_code: string
+	created_at: ColumnType<Date, string | undefined, never>
+}
+
+export type Visitor = Selectable<VisitorTable>
+export type NewVisitor = Insertable<VisitorTable>
+
+export interface UserTable {
+	created_at: Generated<Timestamp>
+	email: string
+	id: Generated<number>
+	password: string
+	username: string
+	uuid: string
+}
+
+export type User = Selectable<UserTable>
+export type NewUser = Insertable<UserTable>
+export type UserUpdate = Updateable<UserTable>

src/zodSchema.ts

@@ -0,0 +1,12 @@
+import { z } from 'zod'
+import { char, createRegExp, exactly, oneOrMore } from 'magic-regexp'
+
+const urlRegex = createRegExp(
+	exactly('https://'),
+	oneOrMore(oneOrMore(char), exactly('.')),
+	oneOrMore(char)
+)
+
+export const createLinkSchema = z.object({
+	link: z.string().regex(urlRegex),
+})

tsconfig.json

@@ -0,0 +1,105 @@
+{
+	"compilerOptions": {
+		/* Visit https://aka.ms/tsconfig to read more about this file */
+
+		/* Projects */
+		// "incremental": true,                              /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
+		// "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
+		// "tsBuildInfoFile": "./.tsbuildinfo",              /* Specify the path to .tsbuildinfo incremental compilation file. */
+		// "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects. */
+		// "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
+		// "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
+
+		/* Language and Environment */
+		"target": "ES2021" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */,
+		// "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+		// "jsx": "preserve",                                /* Specify what JSX code is generated. */
+		// "experimentalDecorators": true,                   /* Enable experimental support for TC39 stage 2 draft decorators. */
+		// "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
+		// "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
+		// "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
+		// "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
+		// "reactNamespace": "",                             /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
+		// "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
+		// "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
+		// "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
+
+		/* Modules */
+		"module": "ES2022" /* Specify what module code is generated. */,
+		// "rootDir": "./",                                  /* Specify the root folder within your source files. */
+		"moduleResolution": "node" /* Specify how TypeScript looks up a file from a given module specifier. */,
+		// "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
+		// "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
+		// "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
+		// "typeRoots": [],                                  /* Specify multiple folders that act like './node_modules/@types'. */
+		"types": [
+			"bun-types"
+		] /* Specify type package names to be included without being referenced in a source file. */,
+		// "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
+		// "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */
+		// "resolveJsonModule": true,                        /* Enable importing .json files. */
+		// "noResolve": true,                                /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
+
+		/* JavaScript Support */
+		// "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
+		// "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
+		// "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
+
+		/* Emit */
+		// "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+		// "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
+		// "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
+		// "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
+		// "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
+		// "outDir": "./",                                   /* Specify an output folder for all emitted files. */
+		// "removeComments": true,                           /* Disable emitting comments. */
+		// "noEmit": true,                                   /* Disable emitting files from a compilation. */
+		// "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
+		// "importsNotUsedAsValues": "remove",               /* Specify emit/checking behavior for imports that are only used for types. */
+		// "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
+		// "sourceRoot": "",                                 /* Specify the root path for debuggers to find the reference source code. */
+		// "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
+		// "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
+		// "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
+		// "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
+		// "newLine": "crlf",                                /* Set the newline character for emitting files. */
+		// "stripInternal": true,                            /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
+		// "noEmitHelpers": true,                            /* Disable generating custom helper functions like '__extends' in compiled output. */
+		// "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
+		// "preserveConstEnums": true,                       /* Disable erasing 'const enum' declarations in generated code. */
+		// "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
+		// "preserveValueImports": true,                     /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
+
+		/* Interop Constraints */
+		// "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
+		// "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
+		"esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */,
+		// "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
+		"forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,
+
+		/* Type Checking */
+		"strict": true /* Enable all strict type-checking options. */,
+		"noImplicitAny": true /* Enable error reporting for expressions and declarations with an implied 'any' type. */,
+		// "strictNullChecks": true,                         /* When type checking, take into account 'null' and 'undefined'. */
+		// "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
+		// "strictBindCallApply": true,                      /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
+		// "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
+		// "noImplicitThis": true,                           /* Enable error reporting when 'this' is given the type 'any'. */
+		// "useUnknownInCatchVariables": true,               /* Default catch clause variables as 'unknown' instead of 'any'. */
+		// "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
+		// "noUnusedLocals": true,                           /* Enable error reporting when local variables aren't read. */
+		// "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read. */
+		// "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
+		// "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
+		// "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
+		// "noUncheckedIndexedAccess": true,                 /* Add 'undefined' to a type when accessed using an index. */
+		// "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
+		// "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type. */
+		// "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
+		// "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
+
+		/* Completeness */
+		// "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
+		"skipLibCheck": true /* Skip type checking all .d.ts files. */
+	}
+}