Yahoo Finance API

11.05/.env.example

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+APP_NAME=
+
+DB_HOST=
+DB_USER=
+DB_PASSWORD=
+DB_DATABASE=

11.05/.gitignore

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+.idea/
+vendor/
+.env

11.05/app/Controllers/HomeController.php

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+<?php
+
+namespace App\Controllers;
+
+use App\Services\QuoteService;
+
+class HomeController
+{
+    public function index()
+    {
+        $quote = null;
+
+        return require_once __DIR__ . '/../Views/IndexView.php';
+    }
+
+    public function search()
+    {
+        $service = new QuoteService();
+        $quote = $service->getQuote($_GET['symbol']);
+
+        return require_once __DIR__ . '/../Views/IndexView.php';
+    }
+}

11.05/app/Models/Quote.php

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+<?php
+
+namespace App\Models;
+
+class Quote
+{
+    private string $symbol;
+    private float $regularPrice;
+    private float $regularChangePercent;
+    private float $previousClose;
+    private float $regularOpen;
+    private float $regularDayHigh;
+    private float $regularDayLow;
+    private float $fiftyTwoWeekHigh;
+    private float $fiftyTwoWeekLow;
+    private int $regularVolume;
+
+    public function __construct(
+      string $symbol,
+      float $regularPrice,
+      float $regularChangePercent,
+      float $previousClose,
+      float $regularOpen,
+      float $regularDayHigh,
+      float $regularDayLow,
+      float $fiftyTwoWeekHigh,
+      float $fiftyTwoWeekLow,
+        int $regularVolume
+    ) {
+        $this->symbol = $symbol;
+        $this->regularPrice = $regularPrice;
+        $this->regularChangePercent = $regularChangePercent;
+        $this->previousClose = $previousClose;
+        $this->regularOpen = $regularOpen;
+        $this->regularDayHigh = $regularDayHigh;
+        $this->regularDayLow = $regularDayLow;
+        $this->fiftyTwoWeekHigh = $fiftyTwoWeekHigh;
+        $this->fiftyTwoWeekLow = $fiftyTwoWeekLow;
+        $this->regularVolume = $regularVolume;
+    }
+
+    public function getSymbol(): string
+    {
+        return $this->symbol;
+    }
+
+    public function getRegularPrice(): float
+    {
+        return $this->regularPrice;
+    }
+
+    public function getRegularChangePercent(): float
+    {
+        return $this->regularChangePercent;
+    }
+
+    public function getPreviousClose(): float
+    {
+        return $this->previousClose;
+    }
+
+    public function getRegularOpen(): float
+    {
+        return $this->regularOpen;
+    }
+
+    public function getRegularDayHigh(): float
+    {
+        return $this->regularDayHigh;
+    }
+
+    public function getRegularDayLow(): float
+    {
+        return $this->regularDayLow;
+    }
+
+    public function getFiftyTwoWeekHigh(): float
+    {
+        return $this->fiftyTwoWeekHigh;
+    }
+
+    public function getFiftyTwoWeekLow(): float
+    {
+        return $this->fiftyTwoWeekLow;
+    }
+
+    public function getRegularVolume(): int
+    {
+        return $this->regularVolume;
+    }
+
+    public static function create(array $data): self
+    {
+        return new self(
+            $data['symbol'],
+            (float) $data['regular_price'],
+            (float) $data['regular_change_percent'],
+            (float) $data['regular_previous_close'],
+            (float) $data['regular_open'],
+            (float) $data['regular_day_high'],
+            (float) $data['regular_day_low'],
+            (float) $data['fifty_two_week_high'],
+            (float) $data['fifty_two_week_low'],
+            (int) $data['regular_volume']
+        );
+    }
+}

11.05/app/Repositories/DatabaseRepository.php

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+<?php
+
+namespace App\Repositories;
+
+use Carbon\Carbon;
+use App\Models\Quote;
+
+class DatabaseRepository
+{
+    public function getBySymbol(string $symbol)
+    {
+        //Search for records
+        $data = query()
+            ->select('*')
+            ->from('quotes')
+            ->where('symbol = :symbol')
+            ->setParameter('symbol', $symbol)
+            ->execute()
+            ->fetchAssociative();
+
+        //In case the record does not exist, create a record
+        if (! $data) {
+            $quote = (new YahooRepository())->getBySymbol($symbol);
+            $this->createRecord($quote);
+            return $quote;
+        }
+
+        //In case the record is outdated, update record
+        if (Carbon::now()->diffInMinutes($data['created_at']) > 10) {
+            $quote = (new YahooRepository())->getBySymbol($symbol);
+            $this->updateRecord($quote);
+
+            return $quote;
+        }
+
+        return Quote::create($data);
+    }
+
+    public function createRecord(Quote $quote): void
+    {
+        query()
+            ->insert('quotes')
+            ->values([
+                'symbol' => ':symbol',
+                'regular_price' => ':regular_price',
+                'regular_change_percent' => ':regular_change_percent',
+                'regular_previous_close' => ':regular_previous_close',
+                'regular_open' => ':regular_open',
+                'regular_day_high' => ':regular_day_high',
+                'regular_day_low' => ':regular_day_low',
+                'fifty_two_week_high' => ':fifty_two_week_high',
+                'fifty_two_week_low' => ':fifty_two_week_low',
+                'regular_volume' => ':regular_volume',
+                'created_at' => ':created_at'
+            ])
+            ->setParameters([
+                'symbol' => $quote->getSymbol(),
+                'regular_price' => $quote->getRegularPrice(),
+                'regular_change_percent' => $quote->getRegularChangePercent(),
+                'regular_previous_close' => $quote->getRegularChangePercent(),
+                'regular_open' => $quote->getRegularOpen(),
+                'regular_day_high' => $quote->getRegularDayHigh(),
+                'regular_day_low' => $quote->getRegularDayLow(),
+                'fifty_two_week_high' => $quote->getFiftyTwoWeekHigh(),
+                'fifty_two_week_low' => $quote->getFiftyTwoWeekLow(),
+                'regular_volume' => $quote->getRegularVolume(),
+                'created_at' => Carbon::now()->format('Y-m-d h:i:s')
+            ])
+            ->execute();
+    }
+
+    public function updateRecord(Quote $quote): void
+    {
+        query()
+            ->update('quotes')
+            ->set('symbol', ':symbol')
+            ->set('regular_price', ':regular_price')
+            ->set('regular_change_percent', ':regular_change_percent')
+            ->set('regular_previous_close', ':regular_previous_close')
+            ->set('regular_open', ':regular_open')
+            ->set('regular_day_high', ':regular_day_high')
+            ->set('regular_day_low', ':regular_day_low')
+            ->set('fifty_two_week_high', ':fifty_two_week_high')
+            ->set('fifty_two_week_low', ':fifty_two_week_low')
+            ->set('regular_volume', ':regular_volume')
+            ->set('created_at', ':created_at')
+            ->setParameters([
+                'regular_price' => $quote->getRegularPrice(),
+                'regular_change_percent' => $quote->getRegularChangePercent(),
+                'regular_previous_close' => $quote->getRegularChangePercent(),
+                'regular_open' => $quote->getRegularOpen(),
+                'regular_day_high' => $quote->getRegularDayHigh(),
+                'regular_day_low' => $quote->getRegularDayLow(),
+                'fifty_two_week_high' => $quote->getFiftyTwoWeekHigh(),
+                'fifty_two_week_low' => $quote->getFiftyTwoWeekLow(),
+                'regular_volume' => $quote->getRegularVolume(),
+                'created_at' => Carbon::now()->format('Y-m-d h:i:s')
+            ])
+            ->where('symbol = :symbol')
+            ->setParameter('symbol', $quote->getSymbol())
+            ->execute();
+    }
+}

11.05/app/Repositories/YahooRepository.php

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+<?php
+
+namespace App\Repositories;
+
+use App\Models\Quote;
+use Scheb\YahooFinanceApi\ApiClientFactory;
+
+class YahooRepository
+{
+    public function getBySymbol(string $symbol): ?Quote
+    {
+        $client = ApiClientFactory::createApiClient();
+        $quoteAPI = $client->getQuote($symbol);
+
+        if($quoteAPI->getSymbol() === $symbol) {
+            return new Quote(
+                $quoteAPI->getSymbol(),
+                $quoteAPI->getRegularMarketPrice(),
+                $quoteAPI->getRegularMarketChangePercent(),
+                $quoteAPI->getRegularMarketPreviousClose(),
+                $quoteAPI->getRegularMarketOpen(),
+                $quoteAPI->getRegularMarketDayHigh(),
+                $quoteAPI->getRegularMarketDayLow(),
+                $quoteAPI->getFiftyTwoWeekHigh(),
+                $quoteAPI->getFiftyTwoWeekLow(),
+                $quoteAPI->getRegularMarketVolume()
+            );
+        } else {
+            return null;
+        }
+    }
+}

11.05/app/Services/QuoteService.php

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+<?php
+
+namespace App\Services;
+
+use App\Repositories\DatabaseRepository;
+
+class QuoteService
+{
+    public function getQuote(string $symbol)
+    {
+        $repository = new DatabaseRepository();
+        return $repository->getBySymbol($symbol);
+    }
+}

11.05/app/Views/FooterView.php

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+
+</body>
+</html>

11.05/app/Views/HeaderView.php

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+<html>
+    <head>
+
+    </head>
+    <body>
+        <header>
+            <nav>
+            </nav>
+        </header>

11.05/app/Views/IndexView.php

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+<?php require_once __DIR__ . '/../Views/HeaderView.php' ?>
+
+<h1>Yahoo Finance API</h1>
+
+<form action="/search" method="GET">
+    <label for="symbol">Search</label>
+    <input type="text" id="symbol" name="symbol" required>
+
+    <button type="submit">Search</button>
+</form>
+
+<?php if ($quote): ?>
+<div>
+    <h2>Stock for <?php echo $quote->getSymbol() ?></h2>
+    <div>
+        Regular price <?php echo $quote->getRegularPrice() ?>
+    </div>
+    <div>
+        Regular change percent <?php echo $quote->getRegularChangePercent() ?>%
+    </div>
+    <div>
+        Market Previous close <?php echo $quote->getPreviousClose() ?>
+    </div>
+    <div>
+        Market Regular Open <?php echo $quote->getRegularOpen() ?>
+    </div>
+    <div>
+        Market Regular Day High <?php echo $quote->getRegularDayHigh() ?>
+    </div>
+    <div>
+        Market Regular Day Low <?php echo $quote->getRegularDayLow() ?>
+    </div>
+    <div>
+        Market 52 week High <?php echo $quote->getFiftyTwoWeekHigh() ?>
+    </div>
+    <div>
+        Market 52 week Low <?php echo $quote->getFiftyTwoWeekLow() ?>
+    </div>
+    <div>
+        Market Regular Day Volume <?php echo $quote->getRegularVolume() ?>
+    </div>
+</div>
+<?php endif; ?>
+
+<?php require_once __DIR__ . '/../Views/FooterView.php' ?>

11.05/composer.json

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+{
+    "autoload": {
+        "psr-4": {
+            "App\\": "app/"
+        }
+    },
+    "require": {
+        "nikic/fast-route": "^1.3",
+        "doctrine/dbal": "^2.12",
+        "vlucas/phpdotenv": "^5.2",
+        "scheb/yahoo-finance-api": "^4.0",
+        "nesbot/carbon": "^2.41"
+    },
+    "minimum-stability": "stable"
+}