2022-08-03
The main branch demo uses the version of tvadingview v20.033 (internal id 9df149da @ 2021-11-17T10:20:51.511Z), the charting_library file, please visit the official website of tradingview to get it, if you need to use or browse Old version, please switch branch to view. I will add comments to the datafeed when I am asked more questions. The official default datafeed is to obtain historical data through http, and then obtain real-time data through the polling http interface. If you do not need to use WebSocket to push data, it is recommended to directly refer to the official demo. After the application chart is successful, you can visit the official warehouse.
- WebSocket mode - meaning that both real-time data and historical data are obtained through WebSocket, because WebSocket responds through notifications, so this mode requires special processing for getBar
- WebSocket+Http mode - meaning that real-time data is obtained through WebSocket, and historical data is obtained through axios, fetch, etc.
Flowchart
graph LR
start[React Render] --> input[Initialize the chart and WebSocket]
input --> conditionA{Chart callback datafeed<Please read the datafeed file for the callback process>}
conditionA -- WebSocket mode --> conditionC{Subscribe to historical and real-time data}
conditionA -- WebSocket+Http mode --> conditionB{Request historical data and subscribe to real-time data}
conditionC -- WebSocket mode --> printA[Process real-time data]
conditionC -- WebSocket mode --> printC[Return the format data that meets the chart requirements to the chart#Please refer to the type definition of the getBar function]
conditionB -- WebSocket+Http mode --> printB[Process real-time data]
conditionB -- WebSocket+Http mode --> printC[Return the format data that meets the chart requirements to the chart#Please refer to the type definition of the getBar function]
printA --> stop[Chart rendering data]
printC --> stop
printB --> stop
Example
Task list
- add react demo
- add vue demo:
Screenshot
