介绍

BTFS当前与IPFS兼容相同的JavaScript和Go SDK库。本指南将引导用户通过一个简单的示例通过SDK集成BTFS网络和TRON智能合约。

实例

假设您基于Web的DApp的HTML主页面引用了后端JS文件：

• HTML

<script type="text/javascript" src="backend.js?2019.06.03.v2"> </script>To implement a function adding files to BTFS, you can first define the IP address and accessible port of your BTFS node.

• JavaScript

const ipAddr = "api.btfs.trongrid.io";const ipPort = "443";Then define a variable with the host IP, port number, and protocol.

• JavaScript

const btfs = window.IpfsApi({host:ipAddr, port:ipPort, protocol:'https'});add方法的形式为.add（data，[options]，[callback]），其中数据可以是：

可读流缓冲区实例一份文件拉流对象数组，每个对象采用以下形式：{  path: '/tmp/myfile.txt', // The file path  content: <data> // A Buffer, Readable Stream, Pull Stream or File with the contents of the file}

• JavaScript

// backend.js

const ipAddr = "api.btfs.trongrid.io";const ipPort = "443";

async function add() {    const btfs = window.IpfsApi({host:ipAddr, port:ipPort, protocol:'https'});    const Buffer = window.IpfsApi().Buffer;    const newReader = new FileReader();    var movieHash, coverHash;    newReader.onloadend = function () {        const buf = Buffer.from(newReader.result);        btfs.files.add(buf, (err, result) => {            if(err) {                console.error(err);                return            }            let url = `https://yourURL./btfs/${result[0].hash}`;            console.log(`Url --> ${url}`);            document.getElementById("url").innerHTML= url;            document.getElementById("url").href= url;            document.getElementById("url").target = '_blank';        });    };    const DApp = document.getElementById("DApp");    newReader.readAsArrayBuffer(DApp.files[0]);}

资源IPFS JS SDK存储库-用JavaScript实现的IPFS HTTP API的客户端库。