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eulith-web3js-core

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Eulith core web3js SDK (code to access Eulith services via web3js)

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"use strict"; var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { if (k2 === undefined) k2 = k; var desc = Object.getOwnPropertyDescriptor(m, k); if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) { desc = { enumerable: true, get: function() { return m[k]; } }; } Object.defineProperty(o, k2, desc); }) : (function(o, m, k, k2) { if (k2 === undefined) k2 = k; o[k2] = m[k]; })); var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { Object.defineProperty(o, "default", { enumerable: true, value: v }); }) : function(o, v) { o["default"] = v; }); var __importStar = (this && this.__importStar) || function (mod) { if (mod && mod.__esModule) return mod; var result = {}; if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k); __setModuleDefault(result, mod); return result; }; var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } return new (P || (P = Promise))(function (resolve, reject) { function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); } step((generator = generator.apply(thisArg, _arguments || [])).next()); }); }; var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); exports.Tokens = void 0; const web3_1 = __importDefault(require("web3")); const Eulith = __importStar(require("../src/index")); /** * Module for code relating to (mostly ERC20) tokens. */ var Tokens; (function (Tokens) { /** * The Symbols enumeration lists the ERC20 symbol (property of the contract) values associated with * some common ERC20 token contracts. * * Historical Note: Cloned from erc20.py TokenSymbol */ let Symbols; (function (Symbols) { Symbols["USDT"] = "USDT"; Symbols["BNB"] = "BNB"; Symbols["USDC"] = "USDC"; Symbols["BUSD"] = "BUSD"; Symbols["MATIC"] = "MATIC"; Symbols["STETH"] = "stETH"; Symbols["WETH"] = "WETH"; Symbols["LDO"] = "LDO"; Symbols["CRV"] = "CRV"; Symbols["CVX"] = "CVX"; Symbols["BAL"] = "BAL"; Symbols["BADGER"] = "BADGER"; Symbols["ONEINCH"] = "1INCH"; Symbols["UNI"] = "UNI"; Symbols["LINK"] = "LINK"; Symbols["APE"] = "APE"; Symbols["GMT"] = "GMT"; Symbols["WBTC"] = "WBTC"; Symbols["LUSD"] = "LUSD"; Symbols["FRAX"] = "FRAX"; Symbols["CBETH"] = "cbETH"; Symbols["GALA"] = "GALA"; Symbols["HEX"] = "HEX"; Symbols["RPL"] = "RPL"; Symbols["DYDX"] = "DYDX"; Symbols["BONE"] = "BONE"; Symbols["LOOKS"] = "LOOKS"; Symbols["AGEUR"] = "agEUR"; Symbols["OSQTH"] = "oSQTH"; Symbols["WSTETH"] = "wstETH"; Symbols["ALBT"] = "ALBT"; })(Symbols = Tokens.Symbols || (Tokens.Symbols = {})); /** * Eulith.Token.getTokenContract - erc20-token-based smart contract factory * * Return the ERC20based token contract object, for the given symbol. * * This function always returns a valid ERC20 contract, or raises an exception. * * This function requires a valid 'provider' (which is bound to the returned contract), * and EITHER an valid symbol, or contract address (from which the symbol can be retrieved). * * See also Eulith.Contracts.ERC20TokenContract - if you don't have a 'symbol' - but an address/etc for the contract. * * \note - this replaces Eulith.Web3.getERCToken() */ function getTokenContract({ provider, symbol, address }) { return __awaiter(this, void 0, void 0, function* () { try { let contractAddr; let decimals; if (symbol != undefined) { const result = (yield provider.request({ method: "eulith_erc_lookup", params: [{ symbol }] }))[0]; contractAddr = result === null || result === void 0 ? void 0 : result.contract_address; decimals = result === null || result === void 0 ? void 0 : result.decimals; } else { contractAddr = address; } if (contractAddr === undefined) { throw new Error("Unrecognized token contract"); } if (symbol == Eulith.Tokens.Symbols.WETH) { if (decimals != 18) { throw new Error("unexpected decimal count in getTokenContract"); } return Eulith.Contracts.WethTokenContract.mk({ provider, contractAddress: contractAddr }); } else { return Eulith.Contracts.ERC20TokenContract.mk({ provider, contractAddress: contractAddr, decimals, symbol }); } } catch (e) { // check if is 'Error' type and prepend 'while' ... stuff to message // LogErr_(this.logger_, "calling getERCToken", e); throw e; } }); } Tokens.getTokenContract = getTokenContract; /** * The API for web3js is somewhat confusing/flexible about units. These utility classes * make easier converting a particular value to/from its web/wire format, and to/from a * sensible numeric value in that tokens 'base' units. * * \note It would be nice to support operator overloading, and conversion operators and such * but this appears to be a weakness in typescript, that it doesn't support this (making a utility like this * far less useful) */ let Value; (function (Value) { /** * An ETH token value is NOT an ERC20 compatible token value, but rather a value from the native blockchain. */ class ETH { /** * if v is a number, its interpretted in ether units * if v is a string or bigint, its interpretted as being in fundamental units (wei). */ constructor(v) { if (typeof v === "number") { this.fundementalValue_ = BigInt(v * Math.pow(10, 18)); } else if (typeof v === "bigint") { this.fundementalValue_ = v; } else { this.fundementalValue_ = BigInt(web3_1.default.utils.toWei(v, "wei")); } } /** * Return the value as a native javascript number, in the units of this currency (ETH) */ get asFloat() { return Number(this.fundementalValue_) / Math.pow(10, 18); } /* * wire format is the 'Fundamental' format, as Hex string */ get asWire() { return this.asWeiHex; } get asFundamentalFloat() { return Number(this.fundementalValue_); } get asFundamentalBN() { return web3_1.default.utils.toBN(this.asFundamentalFloat); } get asFundamentalHex() { return web3_1.default.utils.fromWei(this.asFundamentalBN, "wei"); } get asFundamentalBigInt() { return this.fundementalValue_; } /* * 'Wei' is the 'Fundamental' currency for ETH */ get asWeiBN() { return this.asFundamentalBN; } get asWeiHex() { return this.asFundamentalHex; } get asWeiBigInt() { return this.asFundamentalBigInt; } get symbol() { return "ETH"; } get asDisplayString() { return `${this.asFloat} ${this.symbol}`; } cloneWithNewValue(newV) { return new ETH(newV); } } Value.ETH = ETH; /** * Eulith.Tokens.Value.ERC20 is an object that refers to a value of a token from an ERC20 * contract (see https://eips.ethereum.org/EIPS/eip-20). * * This contains a number, and a level of precision, used when converting to the native form. */ class ERC20 { /** * if v is a number, its interpretted in ERC20 token units * if v is a string | BigInt, its interpretted as being in fundamental units. */ constructor({ v, decimals, contract, symbol }) { if (contract && !decimals) { decimals = contract.decimals; } if (!decimals) { throw new Error("Expected either decimals or contract as argument to Eulith.Tokens.Value.ERC20"); } if (contract && !symbol) { symbol = contract.symbol; } if (!symbol) { throw new Error("Expected either symbol or contract as argument to Eulith.Tokens.Value.ERC20"); } this.symbol_ = symbol; this.decimals_ = decimals; this.toWireFactor_ = Math.pow(10, decimals); if (typeof v === "number") { this.fundementalValue_ = BigInt(Math.round(v * this.toWireFactor_)); } else if (typeof v === "bigint") { this.fundementalValue_ = v; } else if (typeof v === "string") { this.fundementalValue_ = BigInt(v); } else { this.fundementalValue_ = v.asFundamentalBigInt; } } get asFloat() { // @todo this isn't necesarily the best way to convert - probably better to shift decimals first and then convert. return Number(this.fundementalValue_) / this.toWireFactor_; } get asWire() { return this.asFundamentalHex; } get asFundamentalHex() { return "0x" + this.fundementalValue_.toString(16); } get asFundamentalBN() { return web3_1.default.utils.toBN(this.asFundamentalHex); } get asFundamentalBigInt() { return this.fundementalValue_; } get asFundamentalFloat() { return Number(this.fundementalValue_); } get symbol() { return this.symbol_; } get asDisplayString() { return `${this.asFloat} ${this.symbol}`; } cloneWithNewValue(newV) { return new ERC20({ v: newV, symbol: this.symbol_, decimals: this.decimals_ }); } } Value.ERC20 = ERC20; /** * @todo DISCUSS IF THIS SHOULD BE DEPRECATED? IMHO NO, but Kristian at one point I think thought it should... */ class USDC extends ERC20 { constructor(v) { super({ v: v, decimals: 6 }); } } Value.USDC = USDC; /** * Really BEST word here would be Atomic, but too risky of confusion with atomic in "Atomic Transactions" * * This is the smallest indivisible unit of money for a given ERC20 token. */ class Fundamental extends ERC20 { constructor(v) { super({ v: v, decimals: 1 }); } } Value.Fundamental = Fundamental; })(Value = Tokens.Value || (Tokens.Value = {})); })(Tokens = exports.Tokens || (exports.Tokens = {})); //# 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BN from \"bn\";\nimport Web3 from \"web3\";\n\nimport * as Eulith from \"../src/index\";\n\n/**\n *  Module for code relating to (mostly ERC20) tokens.\n */\nexport module Tokens {\n    /**\n     *  The Symbols enumeration lists the ERC20 symbol (property of the contract) values associated with\n     *  some common ERC20 token contracts.\n     *\n     *  Historical Note: Cloned from erc20.py TokenSymbol\n     */\n    export enum Symbols {\n        USDT = \"USDT\",\n        BNB = \"BNB\",\n        USDC = \"USDC\",\n        BUSD = \"BUSD\",\n        MATIC = \"MATIC\",\n        STETH = \"stETH\",\n        WETH = \"WETH\",\n        LDO = \"LDO\",\n        CRV = \"CRV\",\n        CVX = \"CVX\",\n        BAL = \"BAL\",\n        BADGER = \"BADGER\",\n        ONEINCH = \"1INCH\",\n        UNI = \"UNI\",\n        LINK = \"LINK\",\n        APE = \"APE\",\n        GMT = \"GMT\",\n        WBTC = \"WBTC\",\n        LUSD = \"LUSD\",\n        FRAX = \"FRAX\",\n        CBETH = \"cbETH\",\n        GALA = \"GALA\",\n        HEX = \"HEX\",\n        RPL = \"RPL\",\n        DYDX = \"DYDX\",\n        BONE = \"BONE\",\n        LOOKS = \"LOOKS\",\n        AGEUR = \"agEUR\",\n        OSQTH = \"oSQTH\",\n        WSTETH = \"wstETH\",\n        ALBT = \"ALBT\"\n    }\n\n    /**\n     * Eulith.Token.getTokenContract - erc20-token-based smart contract factory\n     *\n     *  Return the ERC20based token contract object, for the given symbol.\n     *\n     *  This function always returns a valid ERC20 contract, or raises an exception.\n     *\n     *  This function requires a valid 'provider' (which is bound to the returned contract),\n     *  and EITHER an valid symbol, or contract address (from which the symbol can be retrieved).\n     *\n     *  See also Eulith.Contracts.ERC20TokenContract - if you don't have a 'symbol' - but an address/etc for the contract.\n     *\n     *  \\note - this replaces Eulith.Web3.getERCToken()\n     */\n    export async function getTokenContract({\n        provider,\n        symbol,\n        address\n    }: {\n        provider: Eulith.Provider;\n        symbol?: Symbols;\n        address?: string;\n    }): Promise<Eulith.Contracts.ERC20TokenContract | Eulith.Contracts.WethTokenContract> {\n        try {\n            let contractAddr: string;\n            let decimals: number;\n            if (symbol != undefined) {\n                const result = (await provider.request({ method: \"eulith_erc_lookup\", params: [{ symbol }] }))[0];\n                contractAddr = result?.contract_address;\n                decimals = result?.decimals as number;\n            } else {\n                contractAddr = address;\n            }\n            if (contractAddr === undefined) {\n                throw new Error(\"Unrecognized token contract\");\n            }\n            if (symbol == Eulith.Tokens.Symbols.WETH) {\n                if (decimals != 18) {\n                    throw new Error(\"unexpected decimal count in getTokenContract\");\n                }\n                return Eulith.Contracts.WethTokenContract.mk({ provider, contractAddress: contractAddr });\n            } else {\n                return Eulith.Contracts.ERC20TokenContract.mk({\n                    provider,\n                    contractAddress: contractAddr,\n                    decimals,\n                    symbol\n                });\n            }\n        } catch (e: any) {\n            // check if is 'Error' type and prepend 'while' ... stuff to message\n            // LogErr_(this.logger_, \"calling getERCToken\", e);\n            throw e;\n        }\n    }\n\n    /**\n     *  The API for web3js is somewhat confusing/flexible about units. These utility classes\n     *  make easier converting a particular value to/from its web/wire format, and to/from a\n     *  sensible numeric value in that tokens 'base' units.\n     *\n     *  \\note It would be nice to support operator overloading, and conversion operators and such\n     *        but this appears to be a weakness in typescript, that it doesn't support this (making a utility like this\n     *        far less useful)\n     */\n\n    export module Value {\n        /**\n         *  Abstract API to capture basic interoperation of token values as exchanged.\n         *\n         *  One key idea here - is that for ITokenValue, there are two BASIC NUMBERS you can get.\n         *      o   the value in its basic atomic (fundemental) units\n         *      o   and the value in its native (e.g. WETH or UDSC etc) ERC20 units.\n         *\n         *  Then there is the ORTHOGANAL issue of how you represent that number (float, or hex string).\n         *\n         *  It turns out - the ONLY use for the hex strings, are in fundemental units, (wire format) -\n         *  so thats the only case where we offer that representation type. Similarly, BigNum's are used\n         *  essentially always for the fundemental representation (atomic units) - so this is the prefered\n         *  data format for the fundemental representation.\n         *\n         *  @todo DISCUSS if ITokenValue should have a readonly 'units' string property, optional,\n         *        for documentation purposes (asDisplayString method). MIGHT BE USEFUL to track\n         *        difference between ETH and USDC token values. Interoperable, but thats probably unfortunate.\n         *\n         *  @todo DISCUSS if ITokenValue should have a readonly 'decimals' value. It has this IMPLICITLY because\n         *        of the covnersion between asFloat and asFundamentalFloat (decimals==log(asFundamentalFloat/asFloat))\n         */\n        export interface ITokenValue {\n            /**\n             *  Return the value as a native javascript number, in the units of this currency\n             *\n             *  NOTE - this conversion to a javascript number can be lossy.\n             *\n             *  \\note - we cannot return the ERC20 token representation as BN, or BigInt,  because\n             *          this will frequently be a fractional (decimal) quantity in the native token units (like USDC, or WETH).\n             *\n             * @todo IMHO, our use of the term 'Float' in this API could reasonably be replaced with 'Number', and would fit better\n             *       with JS - @Kristian\n             */\n            get asFloat(): number;\n\n            /**\n             *  Returns the token value in the native form as it goes over the wire to/from the ethereum network/contract.\n             *\n             *  This is equivilent to asFundamentalHex\n             */\n            get asWire(): string;\n\n            /**\n             *  Returns the token value as an integral # float in the Fundamental (atomic) units\n             */\n            get asFundamentalFloat(): number;\n\n            /**\n             *  Returns the token value as an integral # BN (old BigNumber API) in the Fundamental (atomic) units\n             *\n             *  \\note - BN used internally by web3js as of 1.8.x\n             */\n            get asFundamentalBN(): BN;\n\n            /**\n             *  Returns the token value as an integral # BigInt (NEW BigNumber API) in the Fundamental (atomic) units\n             */\n            get asFundamentalBigInt(): bigint;\n\n            /**\n             *  Returns the token value as a hex string in the fundamental (atomic) units\n             */\n            get asFundamentalHex(): string;\n\n            /**\n             *  Return the symbol associated with this token value (from ERC20 symbol API)\n             */\n            get symbol(): string;\n\n            /**\n             *  Returns the number in natural (not atomic/fundemental) units, with the label of the symbol.\n             *\n             *  Example:\n             *      23.4 WETH\n             *      18.45 USDC\n             */\n            get asDisplayString(): string;\n\n            /**\n             *  Returns a cloned value, but with the new value. newV type interpretation same as the\n             *  value constructor (number intrinsic value, BigInt fundemental, and string fundemental)\n             *\n             *  Useful for arithmatic (like / 2)\n             *\n             */\n            cloneWithNewValue(newV: number | string | bigint): ITokenValue;\n        }\n\n        /**\n         *  An ETH token value is NOT an ERC20 compatible token value, but rather a value from the native blockchain.\n         */\n        export class ETH implements ITokenValue {\n            private fundementalValue_: bigint; // value in 'wei' (fundemental unit), using the BigInt package\n\n            /**\n             * if v is a number, its interpretted in ether units\n             * if v is a string or bigint, its interpretted as being in fundamental units (wei).\n             */\n            public constructor(v: number | string | bigint) {\n                if (typeof v === \"number\") {\n                    this.fundementalValue_ = BigInt((v as number) * 10 ** 18);\n                } else if (typeof v === \"bigint\") {\n                    this.fundementalValue_ = v as bigint;\n                } else {\n                    this.fundementalValue_ = BigInt(Web3.utils.toWei(v as string, \"wei\"));\n                }\n            }\n\n            /**\n             *  Return the value as a native javascript number, in the units of this currency (ETH)\n             */\n            public get asFloat(): number {\n                return Number(this.fundementalValue_) / 10 ** 18;\n            }\n\n            /*\n             *  wire format is the 'Fundamental' format, as Hex string\n             */\n            public get asWire(): string {\n                return this.asWeiHex;\n            }\n\n            public get asFundamentalFloat(): number {\n                return Number(this.fundementalValue_);\n            }\n            public get asFundamentalBN(): BN {\n                return Web3.utils.toBN(this.asFundamentalFloat);\n            }\n            public get asFundamentalHex(): string {\n                return Web3.utils.fromWei(this.asFundamentalBN, \"wei\");\n            }\n            public get asFundamentalBigInt(): bigint {\n                return this.fundementalValue_;\n            }\n\n            /*\n             *  'Wei' is the 'Fundamental' currency for ETH\n             */\n            public get asWeiBN(): BN {\n                return this.asFundamentalBN;\n            }\n            public get asWeiHex(): string {\n                return this.asFundamentalHex;\n            }\n            public get asWeiBigInt(): bigint {\n                return this.asFundamentalBigInt;\n            }\n\n            public get symbol(): string {\n                return \"ETH\";\n            }\n\n            public get asDisplayString(): string {\n                return `${this.asFloat} ${this.symbol}`;\n            }\n\n            public cloneWithNewValue(newV: number | string | bigint): ITokenValue {\n                return new ETH(newV);\n            }\n        }\n\n        /**\n         *  Eulith.Tokens.Value.ERC20 is an object that refers to a value of a token from an ERC20\n         *  contract (see https://eips.ethereum.org/EIPS/eip-20).\n         *\n         *  This contains a number, and a level of precision, used when converting to the native form.\n         */\n        export class ERC20 implements ITokenValue {\n            private fundementalValue_: bigint;\n            private toWireFactor_: number;\n            private symbol_: string;\n            private decimals_: number;\n\n            /**\n             * if v is a number, its interpretted in ERC20 token units\n             * if v is a string | BigInt, its interpretted as being in fundamental units.\n             */\n            public constructor({\n                v,\n                decimals,\n                contract,\n                symbol\n            }: {\n                v: number | string | bigint | ITokenValue;\n                decimals?: number;\n                symbol?: string;\n                contract?: Eulith.Contracts.ERC20TokenContract;\n            }) {\n                if (contract && !decimals) {\n                    decimals = contract.decimals;\n                }\n                if (!decimals) {\n                    throw new Error(\"Expected either decimals or contract as argument to Eulith.Tokens.Value.ERC20\");\n                }\n                if (contract && !symbol) {\n                    symbol = contract.symbol;\n                }\n                if (!symbol) {\n                    throw new Error(\"Expected either symbol or contract as argument to Eulith.Tokens.Value.ERC20\");\n                }\n                this.symbol_ = symbol;\n                this.decimals_ = decimals;\n                this.toWireFactor_ = Math.pow(10, decimals);\n                if (typeof v === \"number\") {\n                    this.fundementalValue_ = BigInt(Math.round((v as number) * this.toWireFactor_));\n                } else if (typeof v === \"bigint\") {\n                    this.fundementalValue_ = v as bigint;\n                } else if (typeof v === \"string\") {\n                    this.fundementalValue_ = BigInt(v as string);\n                } else {\n                    this.fundementalValue_ = (v as ITokenValue).asFundamentalBigInt;\n                }\n            }\n\n            public get asFloat(): number {\n                // @todo this isn't necesarily the best way to convert - probably better to shift decimals first and then convert.\n                return Number(this.fundementalValue_) / this.toWireFactor_;\n            }\n\n            public get asWire(): string {\n                return this.asFundamentalHex;\n            }\n\n            public get asFundamentalHex(): string {\n                return \"0x\" + this.fundementalValue_.toString(16);\n            }\n            public get asFundamentalBN(): BN {\n                return Web3.utils.toBN(this.asFundamentalHex);\n            }\n            public get asFundamentalBigInt(): bigint {\n                return this.fundementalValue_;\n            }\n            public get asFundamentalFloat(): number {\n                return Number(this.fundementalValue_);\n            }\n\n            public get symbol(): string {\n                return this.symbol_;\n            }\n            public get asDisplayString(): string {\n                return `${this.asFloat} ${this.symbol}`;\n            }\n\n            public cloneWithNewValue(newV: number | string | bigint): ITokenValue {\n                return new ERC20({ v: newV, symbol: this.symbol_, decimals: this.decimals_ });\n            }\n        }\n\n        /**\n         *  @todo DISCUSS IF THIS SHOULD BE DEPRECATED? IMHO NO, but Kristian at one point I think thought it should...\n         */\n        export class USDC extends ERC20 {\n            public constructor(v: number | string) {\n                super({ v: v, decimals: 6 });\n            }\n        }\n\n        /**\n         *  Really BEST word here would be Atomic, but too risky of confusion with atomic in \"Atomic Transactions\"\n         *\n         *  This is the smallest indivisible unit of money for a given ERC20 token.\n         */\n        export class Fundamental extends ERC20 {\n            public constructor(v: number | string) {\n                super({ v: v, decimals: 1 });\n            }\n        }\n    }\n}\n"]}