Class: PublicClient

PublicClient is a class that allows for interacting with the network via the JSON-RPC API. It provides an abstraction of the connection to =nil;. PublicClient enables using API requests that do not require signing data (or otherwise using one's private key).

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
  transport: new HttpTransport({
    endpoint: RPC_ENDPOINT,
  }),
  shardId: 1,
});

Extends

• BaseClient

Constructors

new PublicClient()

new PublicClient(config): PublicClient

Creates an instance of PublicClient.

Parameters

Parameter	Type	Description
config	IClientBaseConfig	The config to be used in the client. See IPublicClientConfig.

Returns

PublicClient

Overrides

BaseClient.constructor

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:43

Properties

shardId?

protected optional shardId: number;

The ID of the shard with which the client needs to interact. The shard with this ID will be used in every call made by the client.

Inherited from

BaseClient.shardId

Defined

@nilfoundation/niljs/src/clients/BaseClient.ts:26

---

transport

protected transport: ITransport;

The ITransport to be used in the client. See ITransport.

Inherited from

BaseClient.transport

Defined

@nilfoundation/niljs/src/clients/BaseClient.ts:18

Methods

call()

call(
   callArgs, 
   blockNumberOrHash, 
overrides?): Promise<CallRes | object>

Performs a call to the specified address.

Parameters

Parameter	Type	Description
callArgs	XOR<DataCallArgs, AbiCallArgs>	The arguments for the call.
blockNumberOrHash	0x${string} | BlockTag	The number/hash of the block.
overrides?	Record<Address, ContractOverride>	The overrides of state for the chain call.

Returns

Promise<CallRes | object>

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:391

---

chainId()

chainId(): Promise<number>

Returns the chain ID.

Returns

Promise<number>

The chain ID.

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:340

---

clearChainIdCache()

clearChainIdCache(): void

Returns

void

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:354

---

estimateGas()

estimateGas(callArgs, blockNumberOrHash): Promise<EstimateFeeResult>

Performs a call to the specified address.

Parameters

Parameter	Type	Description
callArgs	XOR<DataCallArgs, AbiCallArgs>	The arguments for the call.
blockNumberOrHash	0x${string} | BlockTag	The number/hash of the block.

Returns

Promise<EstimateFeeResult>

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:450

---

estimateGasLimit()

estimateGasLimit(): Promise<bigint>

Returns the gas limit.

Returns

Promise<bigint>

The gas limit.

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:328

---

getBalance()

getBalance(address, blockNumberOrHash?): Promise<bigint>

Returns the balance of the given address and at the given block.

Parameters

Parameter	Type	Description
address	Address	The address of the account or contract.
blockNumberOrHash?	0x${string} | BlockTag	The number/hash of the block.

Returns

Promise<bigint>

The balance of the address.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
 endpoint: RPC_ENDPOINT
})

const balance = await client.getBalance(ADDRESS, 'latest');

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:221

---

getBlockByHash()

getBlockByHash(hash, fullTx): Promise<Block<boolean>>

Returns the block with the given hash.

Parameters

Parameter	Type	Default value	Description
hash	0x${string}	undefined	The hash of the block whose information is requested.
fullTx	boolean	false	The flag that determines whether full transaction information is returned in the output.

Returns

Promise<Block<boolean>>

Information about the block with the given hash.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
  transport: new HttpTransport({
    endpoint: RPC_ENDPOINT,
  }),
  shardId: 1,
});

const block = await client.getBlockByHash(HASH);

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:64

---

getBlockByNumber()

getBlockByNumber(
   blockNumber, 
   fullTx, 
shardId): Promise<Block<boolean>>

Returns the block with the given number.

Parameters

Parameter	Type	Default value	Description
blockNumber	0x${string} | BlockTag	undefined	The number of the block whose information is requested.
fullTx	boolean	false	The flag that determines whether full transaction information is returned in the output.
shardId	undefined | number	...	The ID of the shard where the block was generated.

Returns

Promise<Block<boolean>>

Returns information about a block with the given number.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
 endpoint: RPC_ENDPOINT
})

const block = await client.getBlockByNumber(1);

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:93

---

getBlockTransactionCountByHash()

getBlockTransactionCountByHash(hash): Promise<number>

Returns the total number of transactions recorded in the block with the given hash.

Parameters

Parameter	Type	Description
hash	0x${string}	The hash of the block whose information is requested.

Returns

Promise<number>

The number of transactions contained within the block.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
 endpoint: RPC_ENDPOINT
})

const count = await client.getBlockTransactionCountByHash(HASH);

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:151

---

getBlockTransactionCountByNumber()

getBlockTransactionCountByNumber(blockNumber, shardId): Promise<number>

Returns the total number of transactions recorded in the block with the given number.

Parameters

Parameter	Type
blockNumber	string
shardId	undefined | number

Returns

Promise<number>

The number of transactions contained within the block.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
 endpoint: RPC_ENDPOINT
})

const count = await client.getBlockTransactionCountByNumber(1);

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:127

---

getCode()

getCode(address, blockNumberOrHash?): Promise<Uint8Array>

Returns the bytecode of the contract with the given address and at the given block.

Parameters

Parameter	Type	Description
address	Address	The address of the account or contract.
blockNumberOrHash?	0x${string} | BlockTag	The number/hash of the block.

Returns

Promise<Uint8Array>

The bytecode of the contract.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
 endpoint: RPC_ENDPOINT
})

const code = await client.getCode(ADDRESS, 'latest');

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:174

---

getGasPrice()

getGasPrice(shardId): Promise<bigint>

Returns the gas price in wei.

Parameters

Parameter	Type
shardId	number

Returns

Promise<bigint>

The gas price.

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:315

---

getShardId()

getShardId(): undefined | number

Returns the shard ID.

Returns

undefined | number

The shard ID.

Inherited from

BaseClient.getShardId

Defined

@nilfoundation/niljs/src/clients/BaseClient.ts:51

---

getTokens()

getTokens(address, blockNumberOrHash): Promise<Record<string, bigint>>

Returns all tokens at the given address.

Parameters

Parameter	Type	Description
address	Address	The address whose information is requested.
blockNumberOrHash	0x${string} | BlockTag	The number/hash of the block.

Returns

Promise<Record<string, bigint>>

The list of tokens.

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:364

---

getTransactionByHash()

getTransactionByHash(hash): Promise<ProcessedTransaction>

Returns the structure of the internal transaction with the given hash.

Parameters

Parameter	Type	Description
hash	0x${string}	The hash of the transaction.

Returns

Promise<ProcessedTransaction>

The transaction whose information is requested.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
 endpoint: RPC_ENDPOINT
})

const transaction = await client.getTransactionByHash(HASH);

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:243

---

getTransactionCount()

getTransactionCount(address, blockNumberOrHash?): Promise<number>

Returns the transaction count of the account with the given address and at the given block.

Parameters

Parameter	Type	Description
address	Address	The address of the account or contract.
blockNumberOrHash?	0x${string} | BlockTag	The number/hash of the block.

Returns

Promise<number>

The number of transactions contained within the block.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
 endpoint: RPC_ENDPOINT
})

const count = await client.getTransactionCount(ADDRESS, 'latest');

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:198

---

getTransactionReceiptByHash()

getTransactionReceiptByHash(hash): Promise<null | ProcessedReceipt>

Returns the receipt for the transaction with the given hash.

Parameters

Parameter	Type	Description
hash	0x${string}	The hash of the transaction.

Returns

Promise<null | ProcessedReceipt>

The receipt whose structure is requested.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
endpoint: RPC_ENDPOINT
})

const receipt = await client.getTransactionReceiptByHash(HASH, 1);

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:274

---

request()

protected request<T>(requestObject): Promise<T>

Sends a request.

Type Parameters

Type Parameter
T

Parameters

Parameter	Type	Description
requestObject	RequestArguments	The request object. It contains the request method and parameters.

Returns

Promise<T>

The response.

Inherited from

BaseClient.request

Defined

@nilfoundation/niljs/src/clients/BaseClient.ts:43

---

sendRawTransaction()

sendRawTransaction(transaction): Promise<0x${string}>

Creates a new transaction or creates a contract for a previously signed transaction.

Parameters

Parameter	Type	Description
transaction	0x${string} | Uint8Array	The encoded bytecode of the transaction.

Returns

Promise<0x${string}>

The hash of the transaction.

Example

import { PublicClient } from '@nilfoundation/niljs';

const client = new PublicClient({
 endpoint: RPC_ENDPOINT
})

const transaction = Uint8Array.from(ARRAY);

Defined

@nilfoundation/niljs/src/clients/PublicClient.ts:300

---

setShardId()

setShardId(shardId): void

Sets the shard ID.

Parameters

Parameter	Type	Description
shardId	number	The shard ID.

Returns

void

Throws

Will throw an error if the provided shard ID is invalid.

Example

client.setShardId(1);

Inherited from

BaseClient.setShardId

Defined

@nilfoundation/niljs/src/clients/BaseClient.ts:62