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Symfony 7 bundle for crypto payments — autowires the pure-PHP TON + EVM SDKs into typed RPC clients, signature verification, key encryption, and per-chain finality / detection / gas / tx-builder services.

amashukov/blockchain-context-bundle is a Symfony 7 bundle for crypto payments that turns the pure-PHP TON + EVM SDKs (amashukov/ton-php + amashukov/eth-php) into a ready, autowired blockchain surface for your application — typed JSON-RPC clients, deposit-detection / finality / gas / deposit-tx-builder services, EIP-191 + TON Connect signature verification, and AES-256-GCM private-key encryption — all configured from one place, env-agnostic, with full DI autowiring.

Features

Autowired RPC clients — Amashukov\EthRpc\JsonRpcProvider / EthRpcClient (ethers.js-style EVM JSON-RPC) and Amashukov\Toncenter\ToncenterClient (typed toncenter v2), wired over a PSR-18 transport (amashukov/http-client-php cURL client; toncenter gets an X-Api-Key + 429/5xx/542-retry middleware pipeline).
Signing & wallet — Amashukov\Eip1559TxSigner\Eip1559Signer (EIP-1559 offline signer) and Amashukov\TonWallet\WalletV4R2 (built from a mnemonic via the bundle factory); ToncenterWalletRpc implements the wallet's RPC port.
Per-chain domain services (host-app-agnostic, owning ports the host implements): Detection\ChainDepositCheckChain, Finality\{ConfirmationCheckChain,ConfirmationCounterRegistry,DepthPollingFinalityVerifier}, Gas\{EthGasFetcher,TonGasFetcher,ZeroGasFetcher}, TxBuilder\DepositTxBuilderChain (+ per-chain TON / TON-Jetton / ETH / USDT-ERC20 builders), Explorer\DefaultExplorerUrl, Numeric\{BcDecimal,UuidIntCodec,UsdtJettonDecimals}, Time\RealSleeper.
SignatureVerifier — EIP-191 (personal_sign, secp256k1 ecrecover + Keccak-256) + Ed25519 (TON Connect) verification.
PrivKeyEncrypter — AES-256-GCM authenticated encryption for keys at rest.
DepositWalletDeriverInterface port + DerivedWallet / DepositEvidence value objects.
Tagged-iterator chains — ChainDepositCheckChain, ConfirmationCheckChain, ConfirmationCounterRegistry, and DepositTxBuilderChain auto-collect their members via bundle-namespaced tags (blockchain_context.*); drop a new impl and it joins the chain with no DI edits.

Why amashukov/blockchain-context-bundle

There is no maintained Symfony bundle for crypto-payment infrastructure — most projects glue a raw RPC client into a service by hand. This bundle fills that empty niche: it wires the entire TON + EVM stack into Symfony's container with autowiring, env-agnostic config, and a tagged-iterator extension model, so adding a new chain or deposit builder is a drop-in service, not a DI rewrite.

Installation

composer require amashukov/blockchain-context-bundle

// config/bundles.php
return [
    // ...
    Amashukov\BlockchainContextBundle\BlockchainContextBundle::class => ['all' => true],
];

Usage

Inject any autowired service directly:

use Amashukov\EthRpc\JsonRpcProviderInterface;
use Amashukov\Toncenter\ToncenterClientInterface;
use Amashukov\BlockchainContextBundle\Service\SignatureVerifier;

final class SomeService
{
    public function __construct(
        private JsonRpcProviderInterface $eth,
        private ToncenterClientInterface $ton,
        private SignatureVerifier $verifier,
    ) {}
}

Configuration

The bundle is env-agnostic: it exposes a config tree and reads only %blockchain_context.*% parameters internally. The host maps them to its own environment (use %env(...)%, with default: processors as you like). Config is split per chain (eth: / ton:), each toggleable via enabled (default true — set false for a single-chain deployment):

# config/packages/blockchain_context.yaml
blockchain_context:
    eth:
        enabled:            true
        rpc_url:            '%env(ETH_RPC_URL)%'                  # EVM JSON-RPC endpoint
        chain_id:          '%env(int:BRIDGE_ETH_CHAIN_ID)%'
        wallet_private_key:'%env(BRIDGE_ETH_WALLET_PRIVATE_KEY)%'
        usdt_token_address:'%env(USDT_TOKEN_ADDRESS)%'           # USDT-ERC20 deposits
        explorer:          '%env(BRIDGE_ETH_EXPLORER)%'          # default https://etherscan.io
    ton:
        enabled:            true
        toncenter_api_key: '%env(TONCENTER_API_KEY)%'            # optional — lifts toncenter rate limit
        wallet_mnemonic:   '%env(BRIDGE_TON_WALLET_MNEMONIC)%'
        bridge_contract:   '%env(BRIDGE_TON_CONTRACT)%'          # USDT-Jetton deposits
        finality_polls:    '%env(int:TON_FINALITY_POLLS)%'       # 0 = skip depth re-poll
        explorer:          '%env(TON_EXPLORER)%'                 # default https://tonscan.org
    deposit_wallet_encryption_key: '%env(DEPOSIT_WALLET_ENCRYPTION_KEY)%' # base64 of 32 bytes

Every key is optional (sensible empty / 0 / explorer defaults), so a host that uses only one chain can leave the other section's values unset (or enabled: false).

Requirements

PHP 8.3+
Symfony 7.x (symfony/framework-bundle)
ext-gmp, ext-sodium, ext-openssl, ext-bcmath

Related packages

Package	Layer
amashukov/ton-php	Umbrella TON SDK (Cell/BOC, wallet, toncenter)
amashukov/eth-php	Umbrella EVM SDK (Keccak, secp256k1, RLP, EIP-1559, ABI, RPC)
amashukov/http-client-php	PSR-18 cURL HTTP client
amashukov/eth-rpc-client-php	ethers.js v6-style JSON-RPC client
amashukov/toncenter-client-php	Typed toncenter v2 client

Quality

PHPStan level 9 across src/.
php-cs-fixer with the @PER-CS ruleset.
GitHub Actions CI on every push.

composer install
composer test     # PHPUnit
composer stan     # PHPStan (level 9)
composer cs       # php-cs-fixer (dry-run)
composer rector   # Rector (dry-run)

License

MIT — see LICENSE.

amashukov / blockchain-context-bundle

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