Added ReadFromFileCredentials

Author: Илья

src/Auth/ReadFromFileCredentials.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace YdbPlatform\Ydb\Auth;
+
+class ReadFromFileCredentials extends Auth
+{
+
+    protected $fileName;
+    protected $readInterval;
+
+    /**
+     * @param string $fileName
+     * @param int $readInterval
+     */
+    public function __construct(string $fileName = "token.txt", int $readInterval = 600)
+    {
+        $this->fileName = $fileName;
+        $this->readInterval = $readInterval;
+    }
+
+    public function getTokenInfo(): TokenInfo
+    {
+        return new TokenInfo(file_get_contents($this->fileName), $this->readInterval, 1);
+    }
+
+    public function getName(): string
+    {
+        return "from file";
+    }
+}

tests/CheckReadTokenFile.php

@@ -0,0 +1,61 @@
+<?php
+namespace YdbPlatform\Ydb\Test;
+
+use PHPUnit\Framework\TestCase;
+use YdbPlatform\Ydb\Auth\ReadFromFileCredentials;
+use YdbPlatform\Ydb\Ydb;
+use YdbPlatform\Ydb\YdbTable;
+
+class CheckReadTokenFile extends TestCase{
+    public function testRead(){
+        $config = [
+
+            // Database path
+            'database'    => '/local',
+
+            // Database endpoint
+            'endpoint'    => 'localhost:2136',
+
+            // Auto discovery (dedicated server only)
+            'discovery'   => false,
+
+            'credentials'  => new ReadFromFileCredentials("./token.txt")
+        ];
+
+        $ydb = new Ydb($config);
+        self::assertEquals('test-example-token',
+            $ydb->iam()->token()
+        );
+
+
+    }
+
+    private function getYdbResult(array $config) : array
+    {
+        $table = $ydb->table();
+
+        $session = $table->createSession();
+
+        $session->createTable(
+            'episodes',
+            YdbTable::make()
+                ->addColumn('series_id', 'UINT64')
+                ->addColumn('title', 'UTF8')
+                ->addColumn('episode_id', 'UINT64')
+                ->addColumn('season_id', 'UINT64')
+                ->primaryKey('series_id')
+        );
+
+        $session->transaction(function($session) {
+            return $session->query('
+        UPSERT INTO `episodes` (series_id, season_id, episode_id, title)
+        VALUES (2, 6, 1, "TBD");');
+        });
+
+        $result = $session->query('select `series_id`, `season_id`, `episode_id`, `title` from `episodes`;');
+        return [$result->rowCount(), $result->rows()[0]["season_id"],
+            $result->rows()[0]["episode_id"],
+            $result->rows()[0]["series_id"],
+            $result->rows()[0]["title"]];
+    }
+}

tests/token.txt

@@ -0,0 +1 @@
+test-example-token