manifold-sdk – 歧管sdk区块链毕设代写

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title	description	version
manifold finance sdk	a well typed sdk for web3	0.1.1

`manifold-sdk`

a human web3 interface

SDK Overview:

Keep your private keys in your client, safe and sound
Import and export JSON wallets
Import and export BIP 39 mnemonic phrases (12-word backup phrases) and HD wallets (English, Italian, Japanese, Korean, Simplified Chinese, Traditional Chinese)
Connect to Ethereum nodes over JSON-RPC (both public and private).
Aliases names are first-class citizens; it can be used to log in any Manifold Finance services
Complete functionality for all your Manifold Finance needs
Large collection of test cases which are maintained and added to
Fully TypeScript-ready, with definition files and full TypeScript source

usage

make build

npm install --save manifold-sdk

importing

JavaScript (ES3)

var manifold = require('manifold-sdk');

JavaScript (ES5 or ES6)

const manifold = require('manifold-sdk');

JavaScript (ES6) / TypeScript

import { manifold } from 'manifold-sdk';

example

const Web3 = require("web3"); const BN = Web3.utils.BN; const ManifoldProvider = require("@manifold/provider");  class GasEVO {   constructor(options) {     this.GasEVO = null;      this.pollingInterval = null;     this.account = null;     this.unlocked = false;     this.balanceWei = 0;     this.balance = 0;     this.address = "REPLACE_WITH_CONTRACT_ADDRESS";     this.genesisBlock = 0;     this.loading = false;     this.options = {       readonlyRpcURL: "https://mainnet.infura.io",       autoInit: true,       getPastEvents: false,       watchFutureEvents: false,       connectionRetries: 3,     };     Object.assign(this.options, options);     if (this.options.autoInit) this.initWeb3();   }    /*    * Connect    */    initWeb3() {     return new Promise((resolve, reject) => {       let web3Provider = false;        // check for metamask       if (global.web3) {         web3Provider = global.web3.currentProvider;         // attempt to try again if no web3Provider       } else if (this.options.connectionRetries > 0) {         this.options.connectionRetries -= 1;         setTimeout(() => {           this.initWeb3()             .then(resolve)             .catch((error) => {               reject(new Error(error));             });         }, 1000);         // revert to a read only version using infura endpoint       } else {         this.readOnly = true;         web3Provider = ZeroClientProvider({           getAccounts: function () {},           rpcUrl: this.options.readonlyRpcURL,         });       }        if (web3Provider) {         global.web3 = new Web3(web3Provider);         this.startChecking();          if (this.options.getPastEvents) this.getPastEvents();         if (this.options.watchFutureEvents) this.watchFutureEvents();       }     });   }    /*    * Check every second for switching network or switching wallet    */    startChecking() {     if (this.pollingInterval) clearInterval(this.pollingInterval);     this.getGenesisBlock()       .then(() => {         this.pollingInterval = setInterval(this.check.bind(this), 1000);       })       .catch((err) => {         throw new Error(err);       });   }    check() {     this.checkNetwork()       .then(this.checkAccount.bind(this))       .catch((error) => {         console.error(error);         throw new Error(error);       });   }    checkNetwork() {     return global.web3.eth.net.getId((err, netId) => {       if (err) console.error(err);       if (!err && this.network !== netId) {         this.network = netId;         return this.deployContract();       }     });   }    checkAccount() {     return global.web3.eth.getAccounts((error, accounts) => {       if (error) throw new Error(error);       if (accounts.length && this.account !== accounts[0]) {         this.unlocked = true;         this.account = accounts[0];       } else if (!accounts.length) {         this.unlocked = false;         this.account = null;       }     });   }    /*    *    * Constant Functions    *    */    DAY_IN_SECONDS() {     return this.GasEVO.methods       .DAY_IN_SECONDS()       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   NUM_OF_RATES() {     return this.GasEVO.methods       .NUM_OF_RATES()       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   allowance(owner, spender) {     return this.GasEVO.methods       .allowance(owner, spender)       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   balanceOf(account) {     return this.GasEVO.methods       .balanceOf(account)       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   decimals() {     return this.GasEVO.methods       .decimals()       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   name() {     return this.GasEVO.methods       .name()       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   symbol() {     return this.GasEVO.methods       .symbol()       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   totalSupply() {     return this.GasEVO.methods       .totalSupply()       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   getEthDeposit() {     return this.GasEVO.methods       .getEthDeposit()       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   getTotalRate(day) {     return this.GasEVO.methods       .getTotalRate(new BN(day, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   getHolderRate(holder, day) {     return this.GasEVO.methods       .getHolderRate(holder, new BN(day, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   convEvo2Eth(amountEvo) {     return this.GasEVO.methods       .convEvo2Eth(new BN(amountEvo, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   convEth2Evo(amountEth) {     return this.GasEVO.methods       .convEth2Evo(new BN(amountEth, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   getRates(holder, _timestamp) {     return this.GasEVO.methods       .getRates(holder, new BN(_timestamp, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   getEvoInterestPct(holder, amountEvo) {     return this.GasEVO.methods       .getEvoInterestPct(holder, new BN(amountEvo, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   getEvoInterestPct(holder, amountEvo, _timestamp) {     return this.GasEVO.methods       .getEvoInterestPct(holder, new BN(amountEvo, 10), new BN(_timestamp, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   getEvoInterest(holder, amountEvo, _timestamp) {     return this.GasEVO.methods       .getEvoInterest(holder, new BN(amountEvo, 10), new BN(_timestamp, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }   getEvoInterest(holder, amountEvo) {     return this.GasEVO.methods       .getEvoInterest(holder, new BN(amountEvo, 10))       .call()       .then((resp) => {         return resp;       })       .catch((err) => {         console.error(err);       });   }    /*    *    * Transaction Functions    *    */    approve(spender, amount) {     if (!this.account) return Promise.reject(new Error("Unlock Account"));     return this.GasEVO.methods       .approve(spender, new BN(amount, 10))       .send({ from: this.account })       .on("transactionHash", (hash) => {         console.log(hash);         this.loading = true;       })       .then((resp) => {         this.loading = false;         return resp;       })       .catch((err) => {         this.loading = false;         console.error(err);       });   }   decreaseAllowance(spender, subtractedValue) {     if (!this.account) return Promise.reject(new Error("Unlock Account"));     return this.GasEVO.methods       .decreaseAllowance(spender, new BN(subtractedValue, 10))       .send({ from: this.account })       .on("transactionHash", (hash) => {         console.log(hash);         this.loading = true;       })       .then((resp) => {         this.loading = false;         return resp;       })       .catch((err) => {         this.loading = false;         console.error(err);       });   }   increaseAllowance(spender, addedValue) {     if (!this.account) return Promise.reject(new Error("Unlock Account"));     return this.GasEVO.methods       .increaseAllowance(spender, new BN(addedValue, 10))       .send({ from: this.account })       .on("transactionHash", (hash) => {         console.log(hash);         this.loading = true;       })       .then((resp) => {         this.loading = false;         return resp;       })       .catch((err) => {         this.loading = false;         console.error(err);       });   }   withdrawEth(amountEvo) {     if (!this.account) return Promise.reject(new Error("Unlock Account"));     return this.GasEVO.methods       .withdrawEth(new BN(amountEvo, 10))       .send({ from: this.account })       .on("transactionHash", (hash) => {         console.log(hash);         this.loading = true;       })       .then((resp) => {         this.loading = false;         return resp;       })       .catch((err) => {         this.loading = false;         console.error(err);       });   }   transfer(_to, _value) {     if (!this.account) return Promise.reject(new Error("Unlock Account"));     return this.GasEVO.methods       .transfer(_to, new BN(_value, 10))       .send({ from: this.account })       .on("transactionHash", (hash) => {         console.log(hash);         this.loading = true;       })       .then((resp) => {         this.loading = false;         return resp;       })       .catch((err) => {         this.loading = false;         console.error(err);       });   }   transferFrom(_from, _to, _value) {     if (!this.account) return Promise.reject(new Error("Unlock Account"));     return this.GasEVO.methods       .transferFrom(_from, _to, new BN(_value, 10))       .send({ from: this.account })       .on("transactionHash", (hash) => {         console.log(hash);         this.loading = true;       })       .then((resp) => {         this.loading = false;         return resp;       })       .catch((err) => {         this.loading = false;         console.error(err);       });   }    /*    *    * end examples    *    */ }

acknowledgements

portions from ethers.js with much modification

license

SPDX-License-Identifier: MIT

title	description	version
manifold finance sdk	a well typed sdk for web3	0.1.1