50 lines
1.7 KiB
Markdown
50 lines
1.7 KiB
Markdown
# UDF Compatible Datafeed
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This folder contains [UDF][udf-url] datafeed adapter. It implements [Datafeed API][datafeed-url] and makes HTTP requests using [UDF][udf-url] protocol.
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You can use this datafeed adapter to plug your data if you implement [UDF][udf-url] on your server. You can also scrutinize how it works before writing your own adapter.
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This datafeed is implemented in [TypeScript](https://github.com/Microsoft/TypeScript/).
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## Folders content
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- `./src` folder contains the source code in TypeScript.
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- `./lib` folder contains transpiled in es5 code. So, if you do not know how to use TypeScript - you can modify these files to change the result bundle later.
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- `./dist` folder contains bundled JavaScript files which can be inlined into a page and used in the Widget Constructor.
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## Build & bundle
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Before building or bundling your code you need to run `npm install` to install dependencies.
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`package.json` contains some handy scripts to build or generate the bundle:
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- `npm run compile` to compile TypeScript source code into JavaScript files (output will be in `./lib` folder)
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- `npm run bundle-js` to bundle multiple JavaScript files into one bundle (it also bundle polyfills)
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- `npm run build` to compile and bundle (it is a combination of all above commands)
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NOTE: if you want to minify the bundle code, you need to set `ENV` environment variable to a value different from `development`.
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For example:
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```bash
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export ENV=prod
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npm run bundle-js # or npm run build
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```
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or
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```bash
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ENV=prod npm run bundle-js
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```
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or
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```bash
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ENV=prod npm run build
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```
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[udf-url]: https://www.tradingview.com/charting-library-docs/latest/connecting_data/UDF
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[datafeed-url]: https://www.tradingview.com/charting-library-docs/latest/connecting_data/Datafeed-API
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