@liquality.near.<internal>.Chain

Class: Chain<T, N>

@liquality/near..Chain

Represents a connection to a specific blockchain. Used to fetch chain specific data like blocks, transactions, balances and fees.

Type parameters

Name	Type	Description
T	T	type of the internal provider, e.g. JsonRpcProvider for EVM chains
N	Network	type of the network. The default value of the type is Network

Hierarchy

• Chain

  ↳ NearChainProvider

Implements

• ChainProvider

Table of contents

Constructors

• constructor

Properties

• feeProvider
• network
• provider

Methods

• getBalance
• getBlockByHash
• getBlockByNumber
• getBlockHeight
• getFeeProvider
• getFees
• getNetwork
• getProvider
• getTransactionByHash
• sendRawTransaction
• sendRpcRequest
• setFeeProvider
• setNetwork
• setProvider

Constructors

constructor

• new Chain<T, N>(network, provider?, feeProvider?)

Type parameters

Name	Type
T	T
N	Network

Parameters

Name	Type
network	N
provider?	T
feeProvider?	Fee

Defined in

client/dist/lib/Chain.d.ts:14

Properties

feeProvider

• Protected feeProvider: Fee

Defined in

client/dist/lib/Chain.d.ts:11

---

network

• Protected network: N

Defined in

client/dist/lib/Chain.d.ts:12

---

provider

• Protected provider: T

Defined in

client/dist/lib/Chain.d.ts:13

Methods

getBalance

▸ Abstract getBalance(addresses, assets): Promise<BigNumber[]>

virtual Get the balance for list of accounts and list of assets

Parameters

Name	Type
addresses	AddressType[]
assets	Asset[]

Returns

Promise<BigNumber[]>

Implementation of

ChainProvider.getBalance

Defined in

client/dist/lib/Chain.d.ts:75

---

getBlockByHash

▸ Abstract getBlockByHash(blockHash, includeTx?): Promise<Block<any, any>>

virtual Get a block given its hash.

throws UnsupportedMethodError - Thrown if the chain doesn't support the method

throws BlockNotFoundError - Thrown if the block doesn't exist

Parameters

Name	Type	Description
blockHash	string	A string that represents the hash of the desired block.
includeTx?	boolean	If true, fetches transactions in the block.

Returns

Promise<Block<any, any>>

Implementation of

ChainProvider.getBlockByHash

Defined in

client/dist/lib/Chain.d.ts:48

---

getBlockByNumber

▸ Abstract getBlockByNumber(blockNumber?, includeTx?): Promise<Block<any, any>>

virtual Get a block given its number.

Parameters

Name	Type	Description
blockNumber?	number	The number of the desired block.
includeTx?	boolean	-

Returns

Promise<Block<any, any>>

Implementation of

ChainProvider.getBlockByNumber

Defined in

client/dist/lib/Chain.d.ts:57

---

getBlockHeight

▸ Abstract getBlockHeight(): Promise<number>

virtual Get current block height of the chain.

Returns

Promise<number>

Implementation of

ChainProvider.getBlockHeight

Defined in

client/dist/lib/Chain.d.ts:62

---

getFeeProvider

▸ getFeeProvider(): Promise<Fee>

Gets the fee provider

Returns

Promise<Fee>

Defined in

client/dist/lib/Chain.d.ts:38

---

getFees

▸ Abstract getFees(): Promise<FeeDetails>

virtual

Returns

Promise<FeeDetails>

The fee details - FeeDetails

Defined in

client/dist/lib/Chain.d.ts:80

---

getNetwork

▸ getNetwork(): N

Gets the connected network

Returns

N

Defined in

client/dist/lib/Chain.d.ts:22

---

getProvider

▸ getProvider(): T

Gets the chain specific provider

Returns

T

Defined in

client/dist/lib/Chain.d.ts:26

---

getTransactionByHash

▸ Abstract getTransactionByHash(txHash): Promise<Transaction<any>>

virtual Get a transaction given its hash.

Parameters

Name	Type	Description
txHash	string	A string that represents the hash of the desired transaction. Resolves with a Transaction with the same hash as the given input.

Returns

Promise<Transaction<any>>

Implementation of

ChainProvider.getTransactionByHash

Defined in

client/dist/lib/Chain.d.ts:70

---

sendRawTransaction

▸ Abstract sendRawTransaction(rawTransaction): Promise<string>

virtual Broadcast a signed transaction to the network.

throws UnsupportedMethodError - Thrown if the chain doesn't support sending of raw transactions

Parameters

Name	Type	Description
rawTransaction	string	A raw transaction usually in the form of a hexadecimal string that represents the serialized transaction.

Returns

Promise<string>

the transaction hash

Defined in

client/dist/lib/Chain.d.ts:88

---

sendRpcRequest

▸ Abstract sendRpcRequest(method, params): Promise<any>

virtual Used to send supported RPC requests to the RPC node

throws UnsupportedMethodError - Thrown if the chain provider doesn't support RPC requests

Parameters

Name	Type
method	string
params	any[]

Returns

Promise<any>

Defined in

client/dist/lib/Chain.d.ts:94

---

setFeeProvider

▸ setFeeProvider(feeProvider): Promise<void>

Sets the fee provider

Parameters

Name	Type
feeProvider	Fee

Returns

Promise<void>

Defined in

client/dist/lib/Chain.d.ts:34

---

setNetwork

▸ setNetwork(network): void

Sets the network

Parameters

Name	Type
network	N

Returns

void

Defined in

client/dist/lib/Chain.d.ts:18

---

setProvider

▸ setProvider(provider): Promise<void>

Sets the chain specific provider

Parameters

Name	Type
provider	T

Returns

Promise<void>

Defined in

client/dist/lib/Chain.d.ts:30