Press n or j to go to the next uncovered block, b, p or k for the previous block.
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import {APIResponse} from '../provider'
import {
BlockIdType,
Bytes,
Checksum160,
Checksum256,
Checksum256Type,
Float128,
Float64,
Name,
NameType,
PackedTransaction,
SignedTransaction,
SignedTransactionType,
UInt128,
UInt32,
UInt32Type,
UInt64,
} from '../../chain'
import {
AccountObject,
AccountsByAuthorizers,
GetAbiResponse,
GetAccountsByAuthorizersParams,
GetBlockHeaderStateResponse,
GetBlockInfoResponse,
GetBlockResponse,
GetCodeResponse,
GetCurrencyStatsItemResponse,
GetCurrencyStatsResponse,
GetInfoResponse,
GetProducerScheduleResponse,
GetProtocolFeaturesParams,
GetProtocolFeaturesResponse,
GetRawAbiResponse,
GetTableByScopeParams,
GetTableByScopeResponse,
GetTableRowsParams,
GetTableRowsParamsKeyed,
GetTableRowsParamsTyped,
GetTableRowsResponse,
GetTransactionStatusResponse,
PushTransactionResponse,
SendTransaction2Options,
SendTransaction2Response,
SendTransactionResponse,
SendTransactionResponseExceptionStack,
TableIndexType,
TableIndexTypes,
} from './types'
import {ABISerializableConstructor, ABISerializableType, Serializer} from '../../serializer'
import {isInstanceOf} from '../../utils'
function resolveStackFormat(entry: SendTransactionResponseExceptionStack): string {
Iif (!entry.format) return ''
Iif (!entry.data) return entry.format
return entry.format.replace(/\$\{(\w+)\}/g, (_, key) =>
entry.data[key] !== undefined ? String(entry.data[key]) : `\${${key}}`
)
}
export class ChainAPI {
constructor(private client: APIClient) {}
async get_abi(accountName: NameType) {
return this.client.call<GetAbiResponse>({
path: '/v1/chain/get_abi',
params: {account_name: Name.from(accountName)},
})
}
async get_code(accountName: NameType) {
return this.client.call({
path: '/v1/chain/get_code',
params: {account_name: Name.from(accountName)},
responseType: GetCodeResponse,
})
}
async get_raw_abi(accountName: NameType) {
return this.client.call({
path: '/v1/chain/get_raw_abi',
params: {account_name: Name.from(accountName)},
responseType: GetRawAbiResponse,
})
}
async get_account(accountName: NameType, responseType = AccountObject) {
return this.client.call({
path: '/v1/chain/get_account',
params: {account_name: Name.from(accountName)},
responseType: responseType,
})
}
async get_accounts_by_authorizers(params: GetAccountsByAuthorizersParams) {
return this.client.call({
path: '/v1/chain/get_accounts_by_authorizers',
params,
responseType: AccountsByAuthorizers,
})
}
async get_activated_protocol_features(params?: GetProtocolFeaturesParams) {
return this.client.call({
path: '/v1/chain/get_activated_protocol_features',
params,
responseType: GetProtocolFeaturesResponse,
})
}
async get_block(block_num_or_id: BlockIdType | UInt32Type) {
return this.client.call({
path: '/v1/chain/get_block',
params: {block_num_or_id},
responseType: GetBlockResponse,
})
}
async get_block_header_state(block_num_or_id: BlockIdType | UInt32Type) {
return this.client.call({
path: '/v1/chain/get_block_header_state',
params: {block_num_or_id},
responseType: GetBlockHeaderStateResponse,
})
}
async get_block_info(block_num: UInt32Type) {
return this.client.call({
path: '/v1/chain/get_block_info',
params: {block_num},
responseType: GetBlockInfoResponse,
})
}
async get_currency_balance(contract: NameType, accountName: NameType, symbol?: string) {
const params: any = {
account: Name.from(accountName),
code: Name.from(contract),
}
if (symbol) {
params.symbol = symbol
}
return this.client.call({
path: '/v1/chain/get_currency_balance',
params,
responseType: 'asset[]',
})
}
async get_currency_stats(
contract: NameType,
symbol: string
): Promise<GetCurrencyStatsResponse> {
const params: any = {
code: Name.from(contract),
symbol,
}
const response: GetCurrencyStatsResponse = await this.client.call({
path: '/v1/chain/get_currency_stats',
params,
})
const result: GetCurrencyStatsResponse = {}
Object.keys(response).forEach(
(r) => (result[r] = GetCurrencyStatsItemResponse.from(response[r]))
)
return result
}
async get_info() {
return this.client.call({
path: '/v1/chain/get_info',
responseType: GetInfoResponse,
method: 'GET',
})
}
async get_producer_schedule() {
return this.client.call({
path: '/v1/chain/get_producer_schedule',
responseType: GetProducerScheduleResponse,
})
}
async compute_transaction(tx: SignedTransactionType | PackedTransaction) {
if (!isInstanceOf(tx, PackedTransaction)) {
tx = PackedTransaction.fromSigned(SignedTransaction.from(tx))
}
return this.client.call<SendTransactionResponse>({
path: '/v1/chain/compute_transaction',
params: {
transaction: tx,
},
})
}
async send_read_only_transaction(tx: SignedTransactionType | PackedTransaction) {
if (!isInstanceOf(tx, PackedTransaction)) {
tx = PackedTransaction.fromSigned(SignedTransaction.from(tx))
}
return this.client.call<SendTransactionResponse>({
path: '/v1/chain/send_read_only_transaction',
params: {
transaction: tx,
},
})
}
async push_transaction(tx: SignedTransactionType | PackedTransaction) {
if (!isInstanceOf(tx, PackedTransaction)) {
tx = PackedTransaction.fromSigned(SignedTransaction.from(tx))
}
return this.client.call<PushTransactionResponse>({
path: '/v1/chain/push_transaction',
params: tx,
})
}
async send_transaction(tx: SignedTransactionType | PackedTransaction) {
if (!isInstanceOf(tx, PackedTransaction)) {
tx = PackedTransaction.fromSigned(SignedTransaction.from(tx))
}
return this.client.call<SendTransactionResponse>({
path: '/v1/chain/send_transaction',
params: tx,
})
}
async send_transaction2(
tx: SignedTransactionType | PackedTransaction,
options?: SendTransaction2Options
) {
if (!isInstanceOf(tx, PackedTransaction)) {
tx = PackedTransaction.fromSigned(SignedTransaction.from(tx))
}
const response = await this.client.call<SendTransaction2Response>({
path: '/v1/chain/send_transaction2',
params: {
return_failure_trace: true,
retry_trx: false,
retry_trx_num_blocks: 0,
transaction: tx,
...options,
},
})
if (response && response.processed && response.processed.except) {
const except = response.processed.except
const synthesized: APIResponse = {
status: 202,
headers: {},
text: JSON.stringify(response),
json: {
...response,
error: {
code: except.code || 0,
name: except.name || 'transaction_exception',
what: except.message || 'Transaction failed',
details: (except.stack || []).map((s) => ({
message: resolveStackFormat(s) || '',
file: (s.context && s.context.file) || '',
line_number: (s.context && s.context.line) || 0,
method: (s.context && s.context.method) || '',
})),
},
},
}
throw new APIError('/v1/chain/send_transaction2', synthesized)
}
return response
}
async get_table_rows<Index extends TableIndexType = Name>(
params: GetTableRowsParams<Index>
): Promise<GetTableRowsResponse<Index>>
async get_table_rows<Key extends keyof TableIndexTypes>(
params: GetTableRowsParamsKeyed<TableIndexTypes[Key], Key>
): Promise<GetTableRowsResponse<TableIndexTypes[Key]>>
async get_table_rows<
Row extends ABISerializableConstructor,
Index extends TableIndexType = Name,
>(
params: GetTableRowsParamsTyped<Index, Row>
): Promise<GetTableRowsResponse<Index, InstanceType<Row>>>
async get_table_rows<Row extends ABISerializableConstructor, Key extends keyof TableIndexTypes>(
params: GetTableRowsParamsTyped<TableIndexTypes[Key], Row> &
GetTableRowsParamsKeyed<TableIndexTypes[Key], Key>
): Promise<GetTableRowsResponse<TableIndexTypes[Key], InstanceType<Row>>>
async get_table_rows(
params: GetTableRowsParams | GetTableRowsParamsTyped | GetTableRowsParamsKeyed
) {
const type = (params as GetTableRowsParamsTyped).type
let key_type = (params as GetTableRowsParamsKeyed).key_type
const someBound = params.lower_bound || params.upper_bound
if (!key_type && someBound) {
// determine key type from bounds type
Iif (isInstanceOf(someBound, UInt64)) {
key_type = 'i64'
} else Iif (isInstanceOf(someBound, UInt128)) {
key_type = 'i128'
} else Iif (isInstanceOf(someBound, Checksum256)) {
key_type = 'sha256'
} else Iif (isInstanceOf(someBound, Checksum160)) {
key_type = 'ripemd160'
} else if (isInstanceOf(someBound, Float128)) {
key_type = 'float128'
} else Iif (isInstanceOf(someBound, Float64)) {
key_type = 'float64'
}
}
if (!key_type) {
key_type = 'name'
}
let json = params.json
if (json === undefined) {
// if we know the row type don't ask the node to perform abi decoding
json = type === undefined
}
let encode_type = params.encode_type
if (
!encode_type &&
(isInstanceOf(params.lower_bound, Float128) ||
isInstanceOf(params.upper_bound, Float128))
) {
encode_type = 'hex'
}
const boundString = (bound: any) => {
if (!bound) return bound
if (isInstanceOf(bound, Float128) && encode_type === 'hex') return bound.toBoundHex()
return String(bound)
}
const upper_bound = boundString(params.upper_bound)
const lower_bound = boundString(params.lower_bound)
let scope = params.scope
if (typeof scope === 'undefined') {
scope = String(Name.from(params.code))
} else if (typeof scope !== 'string') {
scope = String(scope)
}
// eslint-disable-next-line prefer-const
let {rows, more, next_key} = await this.client.call<any>({
path: '/v1/chain/get_table_rows',
params: {
...params,
code: Name.from(params.code),
table: Name.from(params.table),
limit: params.limit !== undefined ? UInt32.from(params.limit) : undefined,
scope,
key_type,
encode_type,
json,
upper_bound,
lower_bound,
},
})
let ram_payers: Name[] | undefined
if (params.show_payer) {
ram_payers = []
rows = rows.map(({data, payer}) => {
ram_payers!.push(Name.from(payer))
return data
})
}
if (type) {
Iif (json) {
rows = rows.map((value) => {
if (typeof value === 'string' && Bytes.isBytes(value)) {
// this handles the case where nodeos bails on abi decoding and just returns a hex string
return Serializer.decode({data: Bytes.from(value), type})
} else {
return Serializer.decode({object: value, type})
}
})
} else {
rows = rows
.map((hex) => Bytes.from(hex))
.map((data) => Serializer.decode({data, type}))
}
}
if (next_key && next_key.length > 0) {
let indexType: ABISerializableType
// set index type so we can decode next_key in the response if present
switch (key_type) {
case 'i64':
indexType = UInt64
break
case 'i128':
indexType = UInt128
break
case 'name':
indexType = Name
break
case 'float64':
indexType = Float64
break
case 'float128':
indexType = Float128
break
case 'sha256':
indexType = Checksum256
break
case 'ripemd160':
indexType = Checksum160
break
default:
throw new Error(`Unsupported key type: ${key_type}`)
}
if (indexType === Name) {
// names are sent back as an uint64 string instead of a name string..
next_key = Name.from(Serializer.decode({object: next_key, type: UInt64}))
} else {
next_key = Serializer.decode({object: next_key, type: indexType})
}
} else {
next_key = undefined
}
return {rows, more, next_key, ram_payers}
}
async get_table_by_scope(params: GetTableByScopeParams) {
return this.client.call({
path: '/v1/chain/get_table_by_scope',
params,
responseType: GetTableByScopeResponse,
})
}
async get_transaction_status(id: Checksum256Type) {
return this.client.call({
path: '/v1/chain/get_transaction_status',
params: {
id: Checksum256.from(id),
},
responseType: GetTransactionStatusResponse,
})
}
}
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