tarantool / client
PHP client for Tarantool.
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Requires
- php: ^7.2.5|^8
- rybakit/msgpack: ^0.9
- symfony/uid: ^5.1|^6|^7
Requires (Dev)
- ext-json: *
- ext-sockets: *
- friendsofphp/php-cs-fixer: ^2.19
- monolog/monolog: ^1.24|^2.0
- psr/log: ^1.1
- tarantool/phpunit-extras: ^0.2.0
- vimeo/psalm: ^3.9|^4
README
A pure PHP client for Tarantool 1.7.1 or above.
Features
- Written in pure PHP, no extensions are required
- Supports Unix domain sockets
- Supports SQL protocol
- Supports user-defined types (decimals and UUIDs are included)
- Highly customizable
- Thoroughly tested
- Being used in a number of projects, including Queue, Mapper, Web Admin and others.
Table of contents
Installation
The recommended way to install the library is through Composer:
composer require tarantool/client
In order to use the Decimal type that was added in Tarantool 2.3, you additionally need to install the decimal extension. Also, to improve performance when working with the UUID type, which is available since Tarantool 2.4, it is recommended to additionally install the uuid extension.
Creating a client
The easiest way to create a client is by using the default configuration:
use Tarantool\Client\Client; $client = Client::fromDefaults();
The client will be configured to connect to 127.0.0.1
on port 3301
with the default stream connection options.
Also, the best available msgpack package will be chosen automatically. A custom configuration can be accomplished
by one of several methods listed.
DSN string
The client supports the following Data Source Name formats:
tcp://[[username[:password]@]host[:port][/?option1=value1&optionN=valueN]
unix://[[username[:password]@]path[/?option1=value1&optionN=valueN]
Some examples:
use Tarantool\Client\Client; $client = Client::fromDsn('tcp://127.0.0.1'); $client = Client::fromDsn('tcp://[fe80::1]:3301'); $client = Client::fromDsn('tcp://user:pass@example.com:3301'); $client = Client::fromDsn('tcp://user@example.com/?connect_timeout=5.0&max_retries=3'); $client = Client::fromDsn('unix:///var/run/tarantool/my_instance.sock'); $client = Client::fromDsn('unix://user:pass@/var/run/tarantool/my_instance.sock?max_retries=3');
If the username, password, path or options include special characters such as @
, :
, /
or %
,
they must be encoded according to RFC 3986
(for example, with the rawurlencode() function).
Array of options
It is also possible to create the client from an array of configuration options:
use Tarantool\Client\Client; $client = Client::fromOptions([ 'uri' => 'tcp://127.0.0.1:3301', 'username' => '<username>', 'password' => '<password>', ... );
The following options are available:
Custom build
For more deep customisation, you can build a client from the ground up:
use MessagePack\BufferUnpacker; use MessagePack\Packer; use Tarantool\Client\Client; use Tarantool\Client\Connection\StreamConnection; use Tarantool\Client\Handler\DefaultHandler; use Tarantool\Client\Handler\MiddlewareHandler; use Tarantool\Client\Middleware\AuthenticationMiddleware; use Tarantool\Client\Middleware\RetryMiddleware; use Tarantool\Client\Packer\PurePacker; $connection = StreamConnection::createTcp('tcp://127.0.0.1:3301', [ 'socket_timeout' => 5.0, 'connect_timeout' => 5.0, // ... ]); $pureMsgpackPacker = new Packer(); $pureMsgpackUnpacker = new BufferUnpacker(); $packer = new PurePacker($pureMsgpackPacker, $pureMsgpackUnpacker); $handler = new DefaultHandler($connection, $packer); $handler = MiddlewareHandler::append($handler, [ RetryMiddleware::exponential(3), new AuthenticationMiddleware('<username>', '<password>'), // ... ]); $client = new Client($handler);
Handlers
A handler is a function which transforms a request into a response. Once you have created a handler object, you can make requests to Tarantool, for example:
use Tarantool\Client\Keys; use Tarantool\Client\Request\CallRequest; ... $request = new CallRequest('box.stat'); $response = $handler->handle($request); $data = $response->getBodyField(Keys::DATA);
The library ships with two handlers:
DefaultHandler
is used for handling low-level communication with a Tarantool serverMiddlewareHandler
is used as an extension point for an underlying handler via middleware
Middleware
Middleware is the suggested way to extend the client with custom functionality. There are several middleware classes implemented to address the common use cases, like authentification, logging and more. The usage is straightforward:
use Tarantool\Client\Client; use Tarantool\Client\Middleware\AuthenticationMiddleware; $client = Client::fromDefaults()->withMiddleware( new AuthenticationMiddleware('<username>', '<password>') );
You may also assign multiple middleware to the client (they will be executed in FIFO order):
use Tarantool\Client\Client; use Tarantool\Client\Middleware\FirewallMiddleware; use Tarantool\Client\Middleware\LoggingMiddleware; use Tarantool\Client\Middleware\RetryMiddleware; ... $client = Client::fromDefaults()->withMiddleware( FirewallMiddleware::allowReadOnly(), RetryMiddleware::linear(), new LoggingMiddleware($logger) );
Please be aware that the order in which you add the middleware does matter. The same middleware, placed in different order, can give very different or sometimes unexpected behavior. To illustrate, consider the following configurations:
$client1 = Client::fromDefaults()->withMiddleware( RetryMiddleware::linear(), new AuthenticationMiddleware('<username>', '<password>') ); $client2 = Client::fromDefaults()->withMiddleware( new AuthenticationMiddleware('<username>', '<password>'), RetryMiddleware::linear() ); $client3 = Client::fromOptions([ 'username' => '<username>', 'password' => '<password>', ])->withMiddleware(RetryMiddleware::linear());
In this example, $client1
will retry an unsuccessful operation and in case of connection
problems may initiate reconnection with follow-up re-authentication. However, $client2
and $client3
will perform reconnection without doing any re-authentication.
You may wonder why
$client3
behaves like$client2
in this case. This is because specifying some options (via array or DSN string) may implicitly register middleware. Thus, theusername/password
options will be turned intoAuthenticationMiddleware
under the hood, making the two configurations identical.
To make sure your middleware runs first, use the withPrependedMiddleware()
method:
$client = $client->withPrependedMiddleware($myMiddleware);
Data manipulation
Binary protocol
The following are examples of binary protocol requests. For more detailed information and examples please see the official documentation.
Select
Fixtures
local space = box.schema.space.create('example') space:create_index('primary', {type = 'tree', parts = {1, 'unsigned'}}) space:create_index('secondary', {type = 'tree', unique = false, parts = {2, 'str'}}) space:insert({1, 'foo'}) space:insert({2, 'bar'}) space:insert({3, 'bar'}) space:insert({4, 'bar'}) space:insert({5, 'baz'})
Code
$space = $client->getSpace('example'); $result1 = $space->select(Criteria::key([1])); $result2 = $space->select(Criteria::index('secondary') ->andKey(['bar']) ->andLimit(2) ->andOffset(1) ); printf("Result 1: %s\n", json_encode($result1)); printf("Result 2: %s\n", json_encode($result2));
Output
Result 1: [[1,"foo"]]
Result 2: [[3,"bar"],[4,"bar"]]
Insert
Fixtures
local space = box.schema.space.create('example') space:create_index('primary', {type = 'tree', parts = {1, 'unsigned'}})
Code
$space = $client->getSpace('example'); $result = $space->insert([1, 'foo', 'bar']); printf("Result: %s\n", json_encode($result));
Output
Result: [[1,"foo","bar"]]
Space data
tarantool> box.space.example:select() --- - - [1, 'foo', 'bar'] ...
Update
Fixtures
local space = box.schema.space.create('example') space:create_index('primary', {type = 'tree', parts = {1, 'unsigned'}}) space:format({ {name = 'id', type = 'unsigned'}, {name = 'num', type = 'unsigned'}, {name = 'name', type = 'string'} }) space:insert({1, 10, 'foo'}) space:insert({2, 20, 'bar'}) space:insert({3, 30, 'baz'})
Code
$space = $client->getSpace('example'); $result = $space->update([2], Operations::add(1, 5)->andSet(2, 'BAR')); // Since Tarantool 2.3 you can refer to tuple fields by name: // $result = $space->update([2], Operations::add('num', 5)->andSet('name', 'BAR')); printf("Result: %s\n", json_encode($result));
Output
Result: [[2,25,"BAR"]]
Space data
tarantool> box.space.example:select() --- - - [1, 10, 'foo'] - [2, 25, 'BAR'] - [3, 30, 'baz'] ...
Upsert
Fixtures
local space = box.schema.space.create('example') space:create_index('primary', {type = 'tree', parts = {1, 'unsigned'}}) space:format({ {name = 'id', type = 'unsigned'}, {name = 'name1', type = 'string'}, {name = 'name2', type = 'string'} })
Code
$space = $client->getSpace('example'); $space->upsert([1, 'foo', 'bar'], Operations::set(1, 'baz')); $space->upsert([1, 'foo', 'bar'], Operations::set(2, 'qux')); // Since Tarantool 2.3 you can refer to tuple fields by name: // $space->upsert([1, 'foo', 'bar'], Operations::set('name1', 'baz')); // $space->upsert([1, 'foo', 'bar'], Operations::set('name2'', 'qux'));
Space data
tarantool> box.space.example:select() --- - - [1, 'foo', 'qux'] ...
Replace
Fixtures
local space = box.schema.space.create('example') space:create_index('primary', {type = 'tree', parts = {1, 'unsigned'}}) space:insert({1, 'foo'}) space:insert({2, 'bar'})
Code
$space = $client->getSpace('example'); $result1 = $space->replace([2, 'BAR']); $result2 = $space->replace([3, 'BAZ']); printf("Result 1: %s\n", json_encode($result1)); printf("Result 2: %s\n", json_encode($result2));
Output
Result 1: [[2,"BAR"]]
Result 2: [[3,"BAZ"]]
Space data
tarantool> box.space.example:select() --- - - [1, 'foo'] - [2, 'BAR'] - [3, 'BAZ'] ...
Delete
Fixtures
local space = box.schema.space.create('example') space:create_index('primary', {type = 'tree', parts = {1, 'unsigned'}}) space:create_index('secondary', {type = 'tree', parts = {2, 'str'}}) space:insert({1, 'foo'}) space:insert({2, 'bar'}) space:insert({3, 'baz'}) space:insert({4, 'qux'})
Code
$space = $client->getSpace('example'); $result1 = $space->delete([2]); $result2 = $space->delete(['baz'], 'secondary'); printf("Result 1: %s\n", json_encode($result1)); printf("Result 2: %s\n", json_encode($result2));
Output
Result 1: [[2,"bar"]]
Result 2: [[3,"baz"]]
Space data
tarantool> box.space.example:select() --- - - [1, 'foo'] - [4, 'qux'] ...
Call
Fixtures
function func_42() return 42 end
Code
$result1 = $client->call('func_42'); $result2 = $client->call('math.min', 5, 3, 8); printf("Result 1: %s\n", json_encode($result1)); printf("Result 2: %s\n", json_encode($result2));
Output
Result 1: [42]
Result 2: [3]
Evaluate
Code
$result1 = $client->evaluate('function func_42() return 42 end'); $result2 = $client->evaluate('return func_42()'); $result3 = $client->evaluate('return math.min(...)', 5, 3, 8); printf("Result 1: %s\n", json_encode($result1)); printf("Result 2: %s\n", json_encode($result2)); printf("Result 3: %s\n", json_encode($result3));
Output
Result 1: []
Result 2: [42]
Result 3: [3]
SQL protocol
The following are examples of SQL protocol requests. For more detailed information and examples please see the official documentation. Note that SQL is supported only as of Tarantool 2.0.
Execute
Code
$client->execute('CREATE TABLE users ("id" INTEGER PRIMARY KEY AUTOINCREMENT, "email" VARCHAR(255))'); $result1 = $client->executeUpdate('CREATE UNIQUE INDEX email ON users ("email")'); $result2 = $client->executeUpdate(' INSERT INTO users VALUES (null, :email1), (null, :email2) ', [':email1' => 'foo@example.com'], [':email2' => 'bar@example.com'] ); $result3 = $client->executeQuery('SELECT * FROM users WHERE "email" = ?', 'foo@example.com'); $result4 = $client->executeQuery('SELECT * FROM users WHERE "id" IN (?, ?)', 1, 2); printf("Result 1: %s\n", json_encode([$result1->count(), $result1->getAutoincrementIds()])); printf("Result 2: %s\n", json_encode([$result2->count(), $result2->getAutoincrementIds()])); printf("Result 3: %s\n", json_encode([$result3->count(), $result3[0]])); printf("Result 4: %s\n", json_encode(iterator_to_array($result4)));
Output
Result 1: [1,[]]
Result 2: [2,[1,2]]
Result 3: [1,{"id":1,"email":"foo@example.com"}]
Result 4: [{"id":1,"email":"foo@example.com"},{"id":2,"email":"bar@example.com"}]
If you need to execute a dynamic SQL statement whose type you don't know, you can use the generic method execute()
.
This method returns a Response object with the body containing either an array of result set rows or an array
with information about the changed rows:
$response = $client->execute('<any-type-of-sql-statement>'); $resultSet = $response->tryGetBodyField(Keys::DATA); if ($resultSet === null) { $sqlInfo = $response->getBodyField(Keys::SQL_INFO); $affectedCount = $sqlInfo[Keys::SQL_INFO_ROW_COUNT]; }
Prepare
Note that the prepare
request is supported only as of Tarantool 2.3.2.
Code
$client->execute('CREATE TABLE users ("id" INTEGER PRIMARY KEY AUTOINCREMENT, "name" VARCHAR(50))'); $stmt = $client->prepare('INSERT INTO users VALUES(null, ?)'); for ($i = 1; $i <= 100; ++$i) { $stmt->execute("name_$i"); // You can also use executeSelect() and executeUpdate(), e.g.: // $lastInsertIds = $stmt->executeUpdate("name_$i")->getAutoincrementIds(); } $stmt->close(); // Note the SEQSCAN keyword in the query. It is available as of Tarantool 2.11. // If you are using an older version of Tarantool, omit this keyword. $result = $client->executeQuery('SELECT COUNT("id") AS "cnt" FROM SEQSCAN users'); printf("Result: %s\n", json_encode($result[0]));
Output
Result: {"cnt":100}
User-defined types
To store complex structures inside a tuple you may want to use objects:
$space->insert([42, Money::EUR(500)]); [[$id, $money]] = $space->select(Criteria::key([42]));
This can be achieved by extending the MessagePack type system with your own types. To do this, you need to write a MessagePack extension that converts your objects into MessagePack structures and back (for more details, read the msgpack.php's README). Once you have implemented your extension, you should register it with the packer object:
$packer = PurePacker::fromExtensions(new MoneyExtension()); $client = new Client(new DefaultHandler($connection, $packer));
A working example of using the user-defined types can be found in the examples folder.
Tests
To run unit tests:
vendor/bin/phpunit --testsuite unit
To run integration tests:
vendor/bin/phpunit --testsuite integration
Make sure to start client.lua first.
To run all tests:
vendor/bin/phpunit
If you already have Docker installed, you can run the tests in a docker container. First, create a container:
./dockerfile.sh | docker build -t client -
The command above will create a container named client
with PHP 8.3 runtime.
You may change the default runtime by defining the PHP_IMAGE
environment variable:
PHP_IMAGE='php:8.2-cli' ./dockerfile.sh | docker build -t client -
See a list of various images here.
Then run a Tarantool instance (needed for integration tests):
docker network create tarantool-php
docker run -d --net=tarantool-php -p 3301:3301 --name=tarantool \
-v $(pwd)/tests/Integration/client.lua:/client.lua \
tarantool/tarantool:3 tarantool /client.lua
And then run both unit and integration tests:
docker run --rm --net=tarantool-php -v $(pwd):/client -w /client client
Benchmarks
The benchmarks can be found in the dedicated repository.
License
The library is released under the MIT License. See the bundled LICENSE file for details.