#前言
公司最后需要使用TradingView展示K线图走势。由于之前没接触过，拿到文档时一脸蒙逼。还好找到二篇文章+Demo代码，直接改改就行了。
#被批
由于上面的懵懂，有个问题困扰4个小时没解决，最后被Y总批评了，团哥最后做了点评。哎（时区问题）。
#上码
var config = {
//supported_resolutions:["1", "3", "5", "15", "45", "60", "120", "180","240","1D","1W","1M","12M"],
supported_resolutions:["1", "5", "15", "30", "60", "240", "1D","1W","1M"],
"supports_search": true,//是否支持搜索
"supports_group_request": false,//是否支持搜索或品种解析
"supports_marks": false,
"supports_timescale_marks":false,
"exchanges": [{ //交易所数组
"value": "",
"name": "All Exchanges",
"desc": ""
}],
"symbolsTypes": [],
};
const DEFAULT_COIN = "EURUSD.";
const exchanges = ["EURUSD.","GBPUSD.","USDJPY."];
const POST_URL_QUERY = "*********";
const WS_URL_SUBSCRIBE = "*********";
//https://zlq4863947.gitbooks.io/tradingview/book/JS-Api.html#getbarssymbolinfo-resolution-from-to-onhistorycallback-onerrorcallback-firstdatarequest
const history = {};
const leftData = {};
let globalInterval=15;
let Datafeeds = {
//此方法旨在提供填充配置数据的对象
onReady: function (callback) {
console.log('=====onReady running')
setTimeout(function () {
callback(config);
}, 0);
},
//提供一个匹配用户搜索的商品列表
searchSymbols: function (userInput, exchange, symbolType, onResultReadyCallback) {
let match_datas = [];
exchanges.map(el=>{
if(el.includes(userInput)){
match_datas.push({
"symbol" : el,
"full_name" : el,
"description" : '',
});
}
});
console.log(userInput);
console.log(exchange);
console.log(match_datas);
// onResultReadyCallback([{
// "symbol": "AAA", // <商品缩写名>
// "full_name":"aaa", //<商品全称 -- 例: BTCE:BTCUSD>(这个是传入值）
// "description":"AAA", // <商品描述>
// "exchange": "ABC", //<交易所名>
// "ticker":"", //<商品代码, 可选
// "type": ""
// }]);
onResultReadyCallback(match_datas);
},
//通过商品名称解析商品信息(SymbolInfo)。
resolveSymbol: function (symbolName, onSymbolResolvedCallback, onResolveErrorCallback) {
console.log('======resolveSymbol running');
let symbol_stub = {
"name" : symbolName, //商品名称。您的用户将看到它(作为一个字符串)
"ticker" : symbolName, //它是您的商品体系中此商品的唯一标识符
"description" : symbolName , //描述
"type" : 'stock', //仪表的可选类型:stock, index, forex, futures, bitcoin, expression, spread, cfd
"session" : "24x7", //商品交易时间(7*24小时)
"timezone" : "UTC", //时区
"exchange" : symbolName, //listed_exchange 现在，这两个字段都为某个交易所的略称
//minmov(最小波动), pricescale(价格精度), minmove2, fractional(分数)
"minmov" : 1,
"pricescale" : 100000,
"has_intraday" : true,//布尔值显示商品是否具有日内（分钟）历史数据
"intraday_multipliers": config.supported_resolutions,//这是一个包含日内分辨率(分钟单位)的数组
"volume_precision": 8, //整数显示此商品的成交量数字的小数位。0表示只显示整数。1表示保留小数位的1个数字字符
"data_status" : "streaming",//数据状态(streaming(实时),endofday(已收盘),pulsed(脉冲),delayed_streaming(延迟流动中))
};
setTimeout(function () {
onSymbolResolvedCallback(symbol_stub);
},0);
},
//通过日期范围获取历史K线数据。图表库希望通过onHistoryCallback仅一次调用，接收所有的请求历史。而不是被多次调用。
getBars:function(symbolInfo, resolution, from, to, onHistoryCallback, onErrorCallback, firstDataRequest){
let params = {
BrokerID : xxx,
Account : "xxxxx",
Symbol : symbolInfo.name,
From : to+86400,#就这，困扰我很久的代码
Count : 2000,
TimeFrame : globalInterval
};
console.log("params = "+JSON.stringify(params));
$.ajax({
type: 'post',
url : POST_URL_QUERY,
data: JSON.stringify(params),
dataType: 'json',
success:function(res){
let data = res.Bars.Bars;
let bars = {};
if(data.length>1){
bars = data.map(el => {
return {
time: el.Time * 1000, //TradingView requires bar time in ms
low: el.Low,
high: el.High,
open: el.Open,
close: el.Close,
//volume: el.Volume
}
});
if(firstDataRequest){
history[symbolInfo.name] = bars[bars.length - 1];
}
// console.table (data);
onHistoryCallback(bars, {noData: false});
}else{
onHistoryCallback(bars, {noData: true})
}
}
});
},
//订阅K线数据
subscribeBars: function(symbolInfo, resolution, onRealtimeCallback, subscribeUID, onResetCacheNeededCallback){
console.log('=====subscribeBars runnning')
stream.subscribeBars(symbolInfo,resolution,onRealtimeCallback,subscribeUID,onResetCacheNeededCallback);
},
//取消订阅K线数据
unsubscribeBars:function(subscriberUID){
console.log('=====unsubscribeBars running')
stream.unsubscribeBars(subscriberUID)
},
//图表库在它要请求一些历史数据的时候会调用这个函数，让你能够覆盖所需的历史深度
calculateHistoryDepth:function (resolution, resolutionBack, intervalBack){
//optional
console.log('=====calculateHistoryDepth running');
// while optional, this makes sure we request 24 hours of minute data at a time
// CryptoCompare's minute data endpoint will throw an error if we request data beyond 7 days in the past, and return no data
// if(resolution < 60){
// return {resolutionBack: 'D', intervalBack: resolution};
// }else{
// return {resolutionBack: 'M', intervalBack: intervalBack};
// }
let _resolution = resolution;
if (_resolution.includes('D')) {
// 1 day in minutes === 1440
_resolution = 1440;
} else if (_resolution.includes('W')) {
// 1 week in minutes === 10080
_resolution = 10080;
} else if(_resolution.includes('M')){
_resolution = 43200;
}
globalInterval = parseInt(_resolution);
return undefined;
},
//图书馆调用这个函数来获得可见的K线范围的标记。 图表预期每调用一次getMarks就会调用一次onDataCallback。
getMarks: function(symbolInfo, startDate, endDate, onDataCallback, resolution){
//optional
console.log('=====getMarks running')
},
//图表库调用此函数获取可见K线范围的时间刻度标记。图表预期您每个调用getTimescaleMarks会调用一次onDataCallback。
getTimescaleMarks: function(symbolInfo, startDate, endDate, onDataCallback, resolution){
//optional
console.log('=====getTimeScaleMarks running')
},
//当图表需要知道服务器时间时，如果配置标志supports_time设置为true，则调用此函数
getServerTime: function(cb) {
console.log('=====getServerTime running')
}
};
TradingView.onready(function(){
const widgetOptions = {
debug : false,
interval : globalInterval, //Interval of bars plotting. Possible values are: 1, 3, 5, 15, 30, 60, 120, 180, 240 Interval in minutes
symbol : DEFAULT_COIN, //代码股票
container_id : 'tv_chart_container',//页面容器
library_path : "/home/js/module/charting_library/",//类库目录
locale : "zh",
width : '1065px',
height :'730px',
autosize : false,
fullscreen : false, //全屏
// timeframe : config.supported_resolutions,
disabled_features: [
"use_localstorage_for_settings",
"volume_force_overlay",
"header_compare",
//"header_symbol_search",
//"header_resolutions",
"header_interval_dialog_button",
//"show_interval_dialog_on_key_press",
"caption_buttons_text_if_possible",
"header_undo_redo",
"header_screenshot",
"header_chart_type",
"display_market_stauts",
"study_templates",
"left_toolbar",
// "go_to_date",
"items_favoriting",
"header_indicators",
"header_fullscreen_button",
"header_settings",
"header_saveload",
"volume_force_overlay",
"create_volume_indicator_by_default",
"create_volume_indicator_by_default_once"
],
enabled_features: [
"dont_show_boolean_study_arguments",
"move_logo_to_main_pane",
"hide_last_na_study_output",
"legend_context_menu"
],
//drawings_access: { type: 'black', tools: [ { name: "Regression Trend" } , { name: "Trend Angle", grayed: true }] },//工具
// //绘图覆盖
// overrides: {
// "paneProperties.background": "#131722",
// "paneProperties.vertGridProperties.color": "#363c4e",
// "paneProperties.horzGridProperties.color": "#363c4e",
// "symbolWatermarkProperties.transparency": 90,
// "scalesProperties.textColor" : "#AAA",
// "mainSeriesProperties.candleStyle.wickUpColor": '#336854',
// "mainSeriesProperties.candleStyle.wickDownColor": '#7f323f',
// },
//https://zlq4863947.gitbooks.io/tradingview/book/Studies-Overrides.html
//为新创建的指标设置默认样式和输入值
studies_overrides: {
// "volume.volume.color.0": "#00FFFF",
// "volume.volume.color.1": "#0000FF",
// "volume.volume.transparency": 70,
// "volume.volume ma.color": "#FF0000",
// "volume.volume ma.transparency": 30,
// "volume.volume ma.linewidth": 5,
// "volume.show ma": true,
"bollinger bands.median.color": "#33FF88",
"bollinger bands.upper.linewidth": 7
},
//List of time frames visible in timeframes picker at the bottom of the chart.
//https://zlq4863947.gitbooks.io/tradingview/book/Time-Frames.html
time_frames: [
{ text: "1MN", resolution: "1M", description: "1月" },
{ text: "1w", resolution: "1W" },//ok
{ text: "1d", resolution: "1D" },//ok
{ text: "4h", resolution: "240" },//ok
{ text: "1h", resolution: "60" },//ok
{ text: "30m", resolution: "30" },
{ text: "15m", resolution: "15" },
{ text: "5m", resolution: "5" },
{ text: "1m", resolution: "1" }
],
//"1", "5", "15", "30", "60", "240", "1D","1W","1M"],
charts_storage_url : 'http://saveload.tradingview.com',
charts_storage_api_version : "1.1",
client_id : 'tradingview.com',
user_id : 'public_user',
// favorites: {
// intervals: ["1D", "3D", "3W", "W", "M"],
// chartTypes: ["Area", "Line"]
// },
// symbol_search_request_delay : 1000,//在商品搜索按下键后请求之前，以毫秒为单位延迟。
// auto_save_delay : 5000,//延迟秒数等待 onAutoSaveNeeded 可以被再次调用
toolbar_bg : '#f4f7f9',//工具栏背景色
datafeed : Datafeeds, // our datafeed object
};
var widget = window.tvWidget = new TradingView.widget(widgetOptions);
widget.onChartReady(function() {
// 现在可以调用其他widget的方法了
$("body").delegate(".click-symbol","click",function(){
console.log("======= click = "+$(this).data("name"));
//使图表更改商品。 新商品的数据到达后调用回调。
widget.activeChart().setSymbol($(this).data("name"),() => console.log('new symbol data has arrived: '));
});
// widget.activeChart().symbolInterval(function(res){
// console.log("@@@@@@@@@@@@@@@@@");
// console.log(res);
//
// })
/**
* //使图表更改分辨率。 新分辨率的数据到达后调用回调。
widget.activeChart().setResolution($(this).data("name"),() => console.log('new symbol data has arrived: '));
*/
});
});
let _subs = [];
let stream = {
subscribeBars: function(symbolInfo, resolution, onRealtimeCallback, subscribeUID, onResetCacheNeededCallback) {
let channelString = symbolInfo.name;
let newSub = {
channelString,
subscribeUID,
resolution,
lastBar: history[symbolInfo.name],
listener: onRealtimeCallback,
};
_subs.push(newSub);
},
unsubscribeBars: function(uid) {
#注意，这里要把之前订阅的清除掉
console.log('=====unsubscribeBars uid ='+uid);
var subIndex = _subs.findIndex(e => e.subscribeUID === uid)
if (subIndex === -1) {
//console.log("No subscription found for ",uid)
return
}
//var sub = _subs[subIndex]
_subs.splice(subIndex, 1)
}
};
let websocket=null;
let container_body = $(".container-body");
let SocketFeeds = {
closesocket(){
websocket.close();
},
startWebSocket:(wsUri,connectFunc)=>{
websocket = new WebSocket(wsUri);
websocket.onopen = function(evt) { SocketFeeds.onOpen(evt,connectFunc) };
websocket.onclose = function(evt) { SocketFeeds.onClose(evt) };
websocket.onmessage = function(evt) { SocketFeeds.onMessage(evt) };
websocket.onerror = function(evt) { SocketFeeds.onError(evt) };
},
onOpen:(evt,sendFunc)=> {
console.log(evt);
console.log("连接成功，现在你可以发送信息啦！！！");
sendFunc();
},
onClose:(evt)=>{
console.log(evt);
console.log("websocket连接已断开!!!");
websocket.close();
},
onMessage:(evt)=>{
let res = JSON.parse(evt.data);
//console.table(res.Quotes.Quote);
// console.log(res);
//可能有多个帐号
res.Quotes.map(el=>{
let list = el.Quote.List;
if(!list){
return;
}
//console.table(list);
list.map(row => {
let symbol = row.Symbol;
let price = row.Bid;//是别人的接口给得price,全部是bid
let ask = row.Ask;
let lastTime = row.LastTime;
leftData[symbol]={
"symbol" : symbol,
"bid" : price,
"ask" : ask
};
const sub = _subs.find(e => e.channelString === symbol);
if(sub){
let oldLastBar = sub.lastBar;
let lastBarTime = oldLastBar.time/1000;
if(lastTime < (lastBarTime)){
return;
}
let resolution = sub.resolution;
if (resolution.includes('D')) {
// 1 day in minutes === 1440
resolution = 1440;
} else if (resolution.includes('W')) {
// 1 week in minutes === 10080
resolution = 10080;
} else if(resolution.includes('M')){
resolution = 43200;
}
#这里，如果是15分钟的Bar，只要在这15分钟内，则进行累加。这里也被批了。哎
let second = resolution * 60;//秒
let rounded = Math.floor(lastTime / second) * second;
let lastBarSec = lastBarTime ;
let _lastBar = "";
if (rounded > lastBarSec) {
// create a new candle, use last close as open **PERSONAL CHOICE**
_lastBar = {
time: lastTime * 1000,
open: oldLastBar.close,
high: oldLastBar.close,
low: oldLastBar.close,
close: price,
};
} else {
// update lastBar candle!
if (price < oldLastBar.low) {
oldLastBar.low = price
} else if (price > oldLastBar.high) {
oldLastBar.high = price
}
oldLastBar.close = price;
_lastBar = oldLastBar
}
sub.listener(_lastBar);
sub.lastBar = _lastBar;
}
});
if(leftData){
let html = "";
for (let key in leftData) {
let row = leftData[key];
html+='.....';
}
container_body.html(html);
}
});
// SocketFeeds.closesocket();
},
onError:(evt)=>{
console.log('发生错误: '+ evt.data);
},
sendMsg:(message)=>{
if (message=='') {
alert("请先填写发送信息");
return false;
}
if (typeof websocket==="undefined"){
alert("websocket还没有连接，或者连接失败，请检测");
return false;
}
if (websocket.readyState==3) {
alert("websocket已经关闭，请重新连接");
return false;
}
console.log('你发送的信息:'+ message);
websocket.send(message);
return this;
},
};
SocketFeeds.startWebSocket(WS_URL_SUBSCRIBE,connectSend);
function connectSend(){
let list = [];
exchanges.map(el => {
list.push({
Symbol:el
})
});
SocketFeeds.sendMsg('{"BrokerID":1001, "Account": "110462", "Quote": {"List": '+JSON.stringify(list)+'}}');
}参考资源
https://zlq4863947.gitbooks.io/tradingview
https://medium.com/@jonchurch/tv-part-2-b8c2d4211f90
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关键字：TradingView 学习笔记
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