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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | 660x 1x 1x 1x 1x 1x 311x 311x 311x 311x 311x 311x 311x 311x 1x 4698x 332x 332x 2x 330x 1332x 29x 26x 3x 23x 23x 5x 23x 4x 3x 4x 4x 4x 4x 4x 2x 2x 5x 2x 2x 3x 9x 3x 1x 12x 2x 1x 1x 1x | import { ABI, ABIDef, ABISerializableObject, Action, APIClient, BytesType, Name, NameType, PermissionLevel, PermissionLevelType, Serializer, Transaction, } from '@wharfkit/antelope' import {PlaceholderAuth} from '@wharfkit/signing-request' import {Table} from './contract/table' import {formatExceptionMessage, TableScopeType} from './utils' export interface ContractArgs { abi: ABIDef account: NameType client: APIClient } export interface ContractOptions { debug?: boolean } export interface ActionOptions { authorization?: PermissionLevelType[] } export type ActionDataType = BytesType | ABISerializableObject | Record<string, any> export type ActionConstructor = (data: ActionDataType, options?: ActionOptions) => Action export interface ActionsArgs { name: NameType data: ActionDataType authorization?: PermissionLevelType[] } /** * Represents a smart contract deployed to a specific blockchain. * Provides methods for interacting with the contract such as * calling actions, reading tables, and getting the ABI of the contract. */ export class Contract { readonly abi: ABI readonly account: Name readonly client: APIClient readonly debug: boolean = false /** * Constructs a new `Contract` instance. * * @param {ContractArgs} args - The required arguments for a contract. */ constructor(args: ContractArgs, options: ContractOptions = {}) { Iif (!args.abi) { throw new Error('Contract requires an ABI') } this.abi = ABI.from(args.abi) Iif (!args.account) { throw new Error('Contract requires an account name') } this.account = Name.from(args.account) Iif (!args.client) { throw new Error('Contract requires an APIClient') } this.client = args.client if (options.debug) { this.debug = options.debug } } public get tableNames(): string[] { return this.abi.tables.map((table) => String(table.name)) } public hasTable(name: NameType): boolean { return this.tableNames.includes(String(name)) } public table<RowType>(name: NameType, scope?: TableScopeType, rowType?): Table<RowType | any> { if (!this.hasTable(name)) { throw new Error(`Contract (${this.account}) does not have a table named (${name})`) } return Table.from<RowType>({ abi: this.abi, account: this.account, client: this.client, debug: this.debug, defaultScope: scope, name, rowType, }) } public get actionNames(): string[] { return this.abi.actions.map((action) => String(action.name)) } public hasAction(name: NameType): boolean { return this.actionNames.includes(String(name)) } public action(name, data: ActionDataType, options?: ActionOptions): Action { if (!this.hasAction(name)) { throw new Error(`Contract (${this.account}) does not have an action named (${name})`) } let authorization = [PlaceholderAuth] if (options && options.authorization) { authorization = options.authorization.map((auth) => PermissionLevel.from(auth)) } return Action.from( { account: this.account, name, authorization, data, }, this.abi ) } public async readonly(name, data?: ActionDataType): Promise<any> { if (!data) { data = {} } // Generate action const action = this.action(name, data) // Remove authorizations action.authorization = [] // Assemble readonly transaction const transaction = Transaction.from({ ref_block_num: 0, ref_block_prefix: 0, expiration: 0, actions: [action], }) // Execute and retrieve response const response = await this.client.v1.chain.send_read_only_transaction(transaction) if (response.processed.except) { throw new Error(formatExceptionMessage(response.processed.except)) } // Decode and return results const hexData = response.processed.action_traces[0].return_value_hex_data const returnType = this.abi.action_results.find((a) => Name.from(a.name).equals(name)) Iif (!returnType) { throw new Error(`Return type for ${name} not defined in the ABI.`) } return Serializer.decode({ data: hexData, type: returnType.result_type, abi: this.abi, }) } public actions(actions: ActionsArgs[], options?: ActionOptions): Action[] { return actions.map((action) => this.action(action.name, action.data, { authorization: action.authorization || options?.authorization, }) ) } public ricardian(name: NameType) { if (!this.hasAction(name)) { throw new Error(`Contract (${this.account}) does not have an action named (${name})`) } const action = this.abi.actions.find((action) => Name.from(action.name).equals(name)) if (!action || !action.ricardian_contract) { throw new Error( `Contract (${this.account}) action named (${name}) does not have a defined ricardian contract` ) } return action.ricardian_contract } } |