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README.md
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@ -1,26 +1,18 @@
# PHP Contractless RPC # PHP Contractless RPC
`contractless-php-rpc` allows PHP applications to connect directly to a `contractless-php-rpc` connects PHP applications directly to a Contractless
Contractless node through its authenticated binary RPC protocol. It does not node. It implements the authenticated binary RPC protocol without invoking
invoke Contractless CLI programs and does not depend on centralized blockchain Contractless CLI programs.
APIs.
The package can be used to build faucets, block explorers, wallets, application The package is intended for faucets, block explorers, wallets, application
backends, storage applications, and other public Contractless integrations. backends, and other public Contractless integrations.
## Scope ## Scope
The library exposes application-safe public RPC commands, including: The client includes public blockchain lookups, wallet and address lookups,
mempool lookups, asset lookups, loan lookups, storage lookups, governance
- Network and blockchain information lookups, wallet registration, signed transaction submission, and an RPC
- Blocks, headers, and torrents interface restricted to application-safe commands.
- Confirmed transactions and mempool records
- Wallet balances, registration, addresses, and history
- Tokens, NFTs, RWAs, swaps, and loans
- Marketing records
- On-chain data storage
- Governance proposals
- Transaction creation, signing, and broadcasting
Miner relay commands, network mapping changes, monitor-state commands, node Miner relay commands, network mapping changes, monitor-state commands, node
setup synchronization, and server-owner IP controls are intentionally not setup synchronization, and server-owner IP controls are intentionally not
@ -28,32 +20,50 @@ exposed.
## Requirements ## Requirements
- PHP 8.1 or newer using a 64-bit build - PHP 8.1 or newer, running as a 64-bit build
- PHP GD - The PHP GD extension
- PHP OpenSSL - The PHP OpenSSL extension
- The `skein` module from Contractless PHP Modules - The `skein` module from `contractless-php-crypto`
- The `oqsphp` module from Contractless PHP Modules - The `oqsphp` module from `contractless-php-crypto`
Contractless uses the same Falcon key and signature sizes as Contractless uses the same Falcon key and signature sizes as
`Falcon-padded-512`, but its FN-DSA signing mode requires a small message `Falcon-padded-512`, but its FN-DSA signing mode requires a small message
adaptation. `NativeCrypto` performs that adaptation automatically. adaptation. `NativeCrypto` performs that adaptation automatically.
Install and test the Contractless PHP Modules before installing this package:
https://contractless.dev/contractless/Contractless-PHP-Modules
## Installation ## Installation
Install version `0.2` through Packagist: Install and enable `contractless-php-crypto` first. Its repository contains the
native module build, installation, and compatibility-test instructions.
When this package is available through Packagist:
```bash ```bash
composer require contractless/contractless-php-rpc:^0.2.0 -W composer require contractless/contractless-php-rpc
``` ```
Composer installs the package under `vendor/` and generates the required Until the package is published, add it as a Composer path repository:
autoload files.
## Create A Client ```json
{
"repositories": [
{
"type": "path",
"url": "../contractless-php-rpc"
}
],
"require": {
"contractless/contractless-php-rpc": "@dev"
}
}
```
Then install it:
```bash
composer update contractless/contractless-php-rpc
```
## Basic Use
```php ```php
<?php <?php
@ -65,634 +75,112 @@ use Contractless\Rpc\Crypto\NativeCrypto;
use Contractless\Rpc\Transport\StreamTransport; use Contractless\Rpc\Transport\StreamTransport;
use Contractless\Rpc\Wallet\Credentials; use Contractless\Rpc\Wallet\Credentials;
$credentials = Credentials::fromWalletFile( $credentials = Credentials::fromHex(
'/private/path/contractless.wallet', getenv('CONTRACTLESS_PUBLIC_KEY'),
'wallet decryption key', getenv('CONTRACTLESS_PRIVATE_KEY'),
); );
$crypto = new NativeCrypto(); $crypto = new NativeCrypto();
$client = new Client( $client = new Client(
new StreamTransport( new StreamTransport('127.0.0.1', 50050),
host: '127.0.0.1',
port: 50050,
timeout: 10.0,
),
$crypto, $crypto,
$credentials, $credentials,
); );
```
Use port `50050` for the default testnet RPC and `50055` for the default echo $client->totalBalance(
mainnet RPC unless the node operator configured another port. 'ab13318c26250b048db92920a80a86127c933b0c.cltc',
Every RPC call performs a signed client handshake. The wallet used for the
handshake does not have to own an address being looked up.
## RPC Replies
RPC methods return the node's original reply as a PHP string. Depending on the
command, that string may contain text, JSON, or raw binary data.
Decode JSON replies when appropriate:
```php
$data = json_decode(
$client->networkInfo(),
true,
flags: JSON_THROW_ON_ERROR,
); );
``` ```
Do not apply text conversion to raw blocks, headers, torrents, transactions, or RPC replies are returned as their original bytes. Commands that return JSON can
binary integer replies. be decoded with `json_decode($reply, true, flags: JSON_THROW_ON_ERROR)`. Binary
block, torrent, header, and transaction replies remain available without a
lossy conversion.
A coin balance is returned as an eight-byte little-endian unsigned integer: ## Transaction Submission
```php `submitTransaction()` accepts the complete serialized signed transaction as a
$reply = $client->coinBalance('CLTC', $address); hexadecimal string:
$balanceAtomic = unpack('Pbalance', $reply)['balance'];
$balance = number_format($balanceAtomic / 100_000_000, 8, '.', '');
```
All transaction amounts and fees supplied to builders use atomic units.
Contractless has `100,000,000` atomic units per `CLC` or `CLTC`.
## Network And Chain RPC
```php
$network = $client->networkInfo();
$height = $client->blockHeight();
$nodeTime = $client->nodeTime();
$difficulty = $client->difficulty();
$latestBlock = $client->latestBlock();
$largestFee = $client->largestTransactionFee();
$confirmedCount = $client->totalConfirmedTransactions();
```
- `networkInfo()` returns the node's public network information.
- `blockHeight()` returns the current saved chain height.
- `nodeTime()` returns the node's current time.
- `difficulty()` returns the current mining difficulty.
- `latestBlock()` returns the latest saved block.
- `largestTransactionFee()` returns the largest eligible mempool fee.
- `totalConfirmedTransactions()` returns the confirmed transaction count.
## Block, Header, And Torrent RPC
Hashes passed to these methods are 64-character hexadecimal hashes:
```php
$block = $client->blockByHeight(1000);
$block = $client->blockByHash($blockHash);
$torrent = $client->torrentByHeight(1000);
$header = $client->headerByHeight(1000);
$header = $client->headerByHash($headerHash);
$blockHash = $client->blockHashAtHeight(1000);
$headers = $client->allHeaders();
```
- `blockByHeight()` returns the raw saved block at a height.
- `blockByHash()` returns the raw block matching a block hash.
- `torrentByHeight()` returns the raw torrent metadata for a block.
- `headerByHeight()` returns the raw block header at a height.
- `headerByHash()` returns the raw header matching a header hash.
- `blockHashAtHeight()` returns the hash recorded at a height.
- `allHeaders()` returns the saved block-header history.
## Transaction And Mempool RPC
```php
$mempoolCount = $client->mempoolCount();
$mempoolTransaction = $client->mempoolTransactionBySignature(
$signatureHex,
);
$addressMempool = $client->mempoolTransactionsByAddress($address);
$transaction = $client->transactionById($transactionId);
```
- `mempoolCount()` returns the number of pending transactions.
- `mempoolTransactionBySignature()` accepts a 1,332-character hexadecimal
Falcon signature and returns the matching pending transaction.
- `mempoolTransactionsByAddress()` returns pending transactions involving an
address.
- `transactionById()` accepts a 64-character hexadecimal transaction ID and
returns the confirmed transaction and its recorded location.
Submit a complete serialized signed transaction represented as hexadecimal:
```php ```php
$reply = $client->submitTransaction($signedTransactionHex); $reply = $client->submitTransaction($signedTransactionHex);
``` ```
Submit a `SignedTransaction` produced by one of the included builders: The first transaction builder covers the transfer used by faucets and ordinary
currency, token, NFT, and RWA transfers:
```php
$reply = $client->submitSignedTransaction($signedTransaction);
```
## Wallet And Address RPC
```php
$coinBalance = $client->coinBalance('CLTC', $address);
$allBalances = $client->totalBalance($address);
$addressValid = $client->validateAddress($address);
$registration = $client->walletRegistrationStatus($address);
$history = $client->addressHistory($address, skip: 0, limit: 100);
$latest = $client->latestAddressTransactions($address, limit: 25);
$canonical = $client->vanityLookup('my-vanity-address.cltc');
$vanityOwner = $client->vanityOwner('my-vanity-address.cltc');
```
- `coinBalance()` returns one confirmed asset balance as an eight-byte integer.
- `totalBalance()` returns all confirmed balances owned by an address.
- `validateAddress()` asks the node to validate an address.
- `walletRegistrationStatus()` returns whether the wallet is registered.
- `addressHistory()` returns a paginated confirmed transaction history.
- `latestAddressTransactions()` returns the newest confirmed transactions.
- `vanityLookup()` resolves a vanity address to its canonical wallet.
- `vanityOwner()` returns the canonical owner of a vanity address.
Verify a signed message:
```php
$result = $client->validateMessage(
message: 'Message to verify',
address: $address,
signature: $signatureHex,
);
```
Register the wallet loaded into `$credentials`:
```php
$result = $client->registerOwnedWallet($address);
```
The lower-level registration method is available when an application has
already created the required signature:
```php
$result = $client->registerWallet($address, $signatureHex);
```
## Token, NFT, RWA, Swap, And Loan RPC
```php
$tokens = $client->tokenList();
$tokenCatalog = $client->tokenCatalog();
$token = $client->tokenDetails('TOKEN');
$nfts = $client->nftList();
$nft = $client->nftDetails('ART', series: 1);
$loan = $client->loanByHash($loanHash);
$addressContracts = $client->contractsByAddress($address);
$collateral = $client->collateralStatus($loanHash);
```
- `tokenList()` returns the node's token list.
- `tokenCatalog()` returns token catalog data.
- `tokenDetails()` returns details for one token ticker.
- `nftList()` returns the node's NFT and RWA list.
- `nftDetails()` returns one NFT/RWA name and series record.
- `loanByHash()` returns a loan using its contract hash.
- `contractsByAddress()` returns loan contracts involving an address.
- `collateralStatus()` returns the collateral state of a loan.
## Marketing RPC
```php
$records = $client->marketingCampaignHistory(
advertiser: $address,
campaign: 42,
skip: 0,
limit: 100,
);
```
`marketingCampaignHistory()` returns paginated marketing records for one
advertiser and campaign number.
## Data Storage RPC
Get the cost of returning one data key:
```php
$quote = $client->storageLookupCost(
storageKey: $storageKeyHash,
dataKey: 'username',
address: $address,
);
```
Get the cost of returning every key stored under the storage key and address:
```php
$quote = $client->storageLookupCost(
storageKey: $storageKeyHash,
dataKey: 'all',
address: $address,
);
```
Perform a paid lookup using a complete signed type-2 transfer represented as
hexadecimal:
```php
$data = $client->storageLookup(
storageKey: $storageKeyHash,
dataKey: 'all',
address: $address,
paymentTransactionHex: $paymentTransactionHex,
);
```
The payment must match the quote returned by the selected node. A node operator
looking up data through their own node may receive a zero-cost quote.
## Governance RPC
```php
$proposal = $client->governanceProposal($proposalKeyHash);
```
`governanceProposal()` returns the recorded state of a Contractless proposal,
including its voting and activation information.
## Create And Broadcast A Transfer
```php ```php
use Contractless\Rpc\Transaction\TransferBuilder; use Contractless\Rpc\Transaction\TransferBuilder;
$transfer = (new TransferBuilder($crypto, $credentials))->create( $transfer = (new TransferBuilder($crypto, $credentials))->create(
sender: $sender, sender: 'sender-address.cltc',
receiver: $receiver, receiver: 'receiver-address.cltc',
coin: 'CLTC', coin: 'CLTC',
value: 2_500_000_000, value: 2_500_000_000,
fee: 25_000_000, fee: 2_500,
nftSeries: 0,
); );
$reply = $client->submitSignedTransaction($transfer); $reply = $client->submitSignedTransaction($transfer);
``` ```
The same builder transfers base currency, tokens, NFTs, and RWAs. Set Transaction builders are a separate layer over the protocol client. This keeps
`nftSeries` to the applicable series number for an NFT/RWA transfer. transport and node access stable when new transaction types are introduced.
## Token, NFT, RWA, Burn, And Vanity Builders ## Transaction Builders
- `TransferBuilder`: currency, token, NFT, and RWA transfers
- `AssetBuilder`: token creation, token issuance, NFT/RWA creation, burns, and vanity addresses
- `AgreementBuilder`: two-party swaps and loan contracts
- `MiscellaneousBuilder`: marketing records, loan payments, and collateral claims
- `StorageBuilder`: storage keys, bool, signed and unsigned integers, strings, and deletion
- `GovernanceBuilder`: proposal keys, proposal votes, and activation votes
Swaps and loans return `DualSignedTransaction`. The first signer exports it,
the second signer imports it and calls `signNext()`, and only a complete result
can be converted with `toSignedTransaction()` and broadcast.
The 128-bit storage methods accept decimal strings. This preserves the complete
Rust `u128` and `i128` ranges instead of silently losing precision through PHP
integers or floating-point numbers.
## Wallet Material
The library can load a normal Contractless wallet file directly:
```php ```php
use Contractless\Rpc\Transaction\AssetBuilder; use Contractless\Rpc\Wallet\Credentials;
$assets = new AssetBuilder($crypto, $credentials);
$createToken = $assets->createToken(
creator: $address,
ticker: 'TOKEN',
number: 1_000_000_000,
hardLimit: true,
fee: 100_000_000,
);
$issueToken = $assets->issueToken(
creator: $address,
ticker: 'TOKEN',
number: 500_000_000,
fee: 100_000_000,
);
$createNft = $assets->createNft(
creator: $address,
series: false,
fractionalOwnership: false,
name: 'ART',
ipfs: 'ipfs-content-identifier',
count: 1,
description: 'Description of the NFT or RWA',
fee: 100_000_000,
);
$burn = $assets->burn(
address: $address,
coin: 'TOKEN',
nftSeries: 0,
value: 100_000_000,
fee: 100_000_000,
);
$vanity = $assets->vanity(
address: $address,
vanityAddress: 'my-address.cltc',
fee: 100_000_000,
);
$client->submitSignedTransaction($createToken);
```
## Swap And Loan Builders
Swaps and loans require two wallet signatures. The first wallet creates and
signs the transaction:
```php
use Contractless\Rpc\Transaction\AgreementBuilder;
$agreements = new AgreementBuilder($crypto, $credentials);
$swap = $agreements->swap(
expiration: time() + 3600,
ticker1: 'CLTC',
series1: 0,
value1: 100_000_000,
ticker2: 'TOKEN',
series2: 0,
value2: 500_000_000,
sender1: $firstAddress,
sender2: $secondAddress,
tip1: 1_000_000,
tip2: 1_000_000,
fee1: 2_500,
fee2: 2_500,
);
$loan = $agreements->loan(
loanCoin: 'CLTC',
loanAmount: 1_000_000_000,
lender: $lender,
collateral: 'TOKEN',
collateralAmount: 2_000_000_000,
borrower: $borrower,
paymentPeriod: 'm',
paymentNumber: 12,
paymentAmount: 100_000_000,
gracePeriod: 2,
maxLateValue: 300_000_000,
fee: 100_000_000,
);
```
Export the partially signed transaction for the second party:
```php
$exported = json_encode(
$swap->export(),
JSON_PRETTY_PRINT | JSON_THROW_ON_ERROR,
);
```
The second party imports and signs it using their own `$crypto` and
`$credentials`:
```php
use Contractless\Rpc\Transaction\DualSignedTransaction;
$swap = DualSignedTransaction::import(
json_decode($exported, true, flags: JSON_THROW_ON_ERROR),
);
$swap = $swap->signNext($crypto, $credentials);
if ($swap->isComplete()) {
$client->submitSignedTransaction($swap->toSignedTransaction());
}
```
## Loan Payment And Collateral Builders
```php
use Contractless\Rpc\Transaction\MiscellaneousBuilder;
$miscellaneous = new MiscellaneousBuilder($crypto, $credentials);
$payment = $miscellaneous->loanPayment(
amount: 100_000_000,
contractHash: $loanHash,
address: $borrower,
tip: 1_000_000,
fee: 2_500,
);
$claim = $miscellaneous->collateralClaim(
contractHash: $loanHash,
address: $lender,
fee: 100_000_000,
);
$client->submitSignedTransaction($payment);
```
## Marketing Transaction Builder
```php
$marketing = $miscellaneous->marketing(
campaign: 42,
adType: 'banner',
keyword: 'blockchain',
displayed: 'https://example.com/page',
impressions: 1,
clicks: 0,
impressionValue: 100,
clickValue: 500,
advertiser: $address,
fee: 100_000_000,
);
$client->submitSignedTransaction($marketing);
```
## Data Storage Transaction Builders
```php
use Contractless\Rpc\Transaction\StorageBuilder;
$storage = new StorageBuilder($crypto, $credentials);
$createKey = $storage->createKey(
address: $address,
fee: 50_000_000_000,
);
$boolean = $storage->boolean(
$storageKey, 'active', true, $address, 100_000_000,
);
$u8 = $storage->u8($storageKey, 'u8-key', 255, $address, 100_000_000);
$u16 = $storage->u16($storageKey, 'u16-key', 65535, $address, 100_000_000);
$u32 = $storage->u32($storageKey, 'u32-key', 100000, $address, 100_000_000);
$u64 = $storage->u64($storageKey, 'u64-key', 100000, $address, 100_000_000);
$u128 = $storage->u128(
$storageKey,
'u128-key',
'340282366920938463463374607431768211455',
$address,
100_000_000,
);
$i8 = $storage->i8($storageKey, 'i8-key', -128, $address, 100_000_000);
$i16 = $storage->i16($storageKey, 'i16-key', -32768, $address, 100_000_000);
$i32 = $storage->i32($storageKey, 'i32-key', -100000, $address, 100_000_000);
$i64 = $storage->i64($storageKey, 'i64-key', -100000, $address, 100_000_000);
$i128 = $storage->i128(
$storageKey,
'i128-key',
'-170141183460469231731687303715884105728',
$address,
100_000_000,
);
$string = $storage->string(
storageKey: $storageKey,
key: 'username',
value: 'contractless-user',
address: $address,
previousHash: str_repeat('0', 64),
fee: 100_000_000,
);
$delete = $storage->delete(
storageKey: $storageKey,
key: 'username',
address: $address,
fee: 100_000_000,
);
$client->submitSignedTransaction($string);
```
The `u128()` and `i128()` methods accept decimal strings so PHP does not lose
precision. String values may contain up to 180 bytes per linked transaction.
The first string uses 64 zeroes for `previousHash`; later chunks use the hash
of the preceding string transaction.
## Governance Transaction Builders
```php
use Contractless\Rpc\Transaction\GovernanceBuilder;
$governance = new GovernanceBuilder($crypto, $credentials);
$proposal = $governance->proposal(
proposalHash: $proposalDocumentHash,
address: $address,
fee: 100_000_000,
);
$proposalVote = $governance->proposalVote(
proposalKey: $proposalKey,
address: $address,
approve: true,
fee: 100_000_000,
);
$activationVote = $governance->activationVote(
proposalKey: $proposalKey,
developmentHash: $implementationDocumentHash,
developmentLocation: 'CLP-0001-IMPLEMENTATION.md',
address: $address,
approve: true,
fee: 100_000_000,
);
$client->submitSignedTransaction($proposalVote);
```
The network still determines whether the submitting wallet is an eligible node
for proposal and activation voting.
## Signed Transaction Data
Every single-signature builder returns `SignedTransaction`:
```php
$rawBytes = $transaction->bytes;
$hexadecimal = $transaction->toHex();
$signatureBytes = $transaction->signature;
$unsignedSigningJson = $transaction->unsignedJson;
```
Use `submitSignedTransaction()` to broadcast the exact bytes without converting
them to hexadecimal first.
## Wallet Files
Load a normal Contractless wallet:
```php
$credentials = Credentials::fromWalletFile( $credentials = Credentials::fromWalletFile(
'/private/path/contractless.wallet', '/private/path/contractless.wallet',
'wallet decryption key', 'wallet decryption key',
); );
``` ```
The loader: The loader decodes all supported Contractless private-key image orientations,
verifies the encrypted payload HMAC, decrypts the Falcon private key, proves
- Decodes every supported Contractless private-key image orientation that the public and private keys match, and verifies the wallet's canonical
- Verifies the encrypted payload HMAC short address.
- Decrypts the Falcon private key
- Proves that the public and private keys match
- Verifies the wallet's canonical short address
Wallet files and decryption keys must remain outside public web directories, Wallet files and decryption keys must remain outside public web directories,
logs, repositories, and client-visible configuration. logs, repositories, and client-visible configuration.
Verify a wallet before using it: Verify a wallet file and decryption key before using them in an application:
```bash ```bash
php vendor/contractless/contractless-php-rpc/examples/load_wallet.php \ php examples/load_wallet.php /private/path/contractless.wallet 'wallet decryption key'
/private/path/contractless.wallet \
'wallet decryption key'
``` ```
Applications that already manage protected raw keys may load hexadecimal Successful output confirms that the image was decoded, its encrypted payload
Falcon keys directly: was authenticated and decrypted, the Falcon keypair matches, and the wallet
address is valid.
Raw Falcon key bytes remain supported for applications that already manage
their own protected key storage:
```php ```php
$credentials = Credentials::fromHex($publicKeyHex, $privateKeyHex); $credentials = Credentials::fromHex($publicKeyHex, $privateKeyHex);
``` ```
## Direct Public Command Calls
The named methods above are wrappers around `call()`. Applications may invoke
an exposed public command directly when they need to construct its binary
payload themselves:
```php
use Contractless\Rpc\Protocol\Command;
$reply = $client->call(Command::BLOCK_HEIGHT);
```
With a payload:
```php
use Contractless\Rpc\Protocol\Binary;
$reply = $client->call(
Command::BLOCK_BY_HEIGHT,
Binary::u32(1000),
);
```
`call()` rejects internal, administrative, mining, monitor, and unsupported
command numbers. Prefer the named methods whenever one exists because they
validate and encode the command payload correctly.
## Error Handling
RPC transport, protocol, validation, and wallet failures throw exceptions:
```php
try {
$height = $client->blockHeight();
} catch (Throwable $error) {
error_log($error->getMessage());
}
```
Do not expose wallet errors, filesystem paths, private material, or internal
node replies directly to public users.
## Testing ## Testing
```bash ```bash
@ -700,8 +188,17 @@ composer install
composer test composer test
``` ```
Validate package metadata before publishing a release: ## Preparing The Composer Package
Validate the package before publishing:
```bash ```bash
composer validate --strict composer validate --strict
composer install
composer test
``` ```
Commit `composer.json`, `README.md`, `src/`, and `tests/` to the
`contractless-php-rpc` repository. Create a release tag such as `v0.1.0`, then
submit the repository URL to Packagist. Future version tags become installable
Composer releases.