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@@ -3,12 +3,26 @@

+
## Why the Tableau Extensions API?
-The Extensions API lets you do more without leaving Tableau. Build Tableau extensions that can interact and communicate with Tableau, and embed them directly in your workbooks.
+
+The Extensions API lets you do more without leaving Tableau. Build Tableau dashboard and viz extensions that can interact and communicate with Tableau, and embed them directly in your workbooks.
+
+* Build viz extensions to create new viz types that Tableau users can access through the worksheet Marks card.
+
+
+
+
+
+* Build dashboard extensions to add new features and functionality to Tableau that users can access through the dashboard.
+
+
+
## Setup and Running Samples
### Prerequisites
+
* You must have Node.js and npm installed. You can get these from [https://nodejs.org](https://nodejs.org).
### Install Extensions API SDK Components and Start Server
@@ -27,13 +41,14 @@ The Extensions API lets you do more without leaving Tableau. Build Tableau exten
**npm start**
-5. Launch Tableau and try the sample extensions in a dashboard. The samples are located in the `Samples` folder.
+5. Launch Tableau and try a dashboard sample extension in a dashboard, or a viz extension in a worksheet. The dashboard and viz extension samples are located in the `Samples` folder.
- >**Note** The local web server you start just serves to host the extension samples and extensions used in the tutorial, which have URLs similar to the following: `http://localhost:8765/Samples/DataSources/datasources.html` or `http://localhost:8765/Samples-Typescript/DataSources/datasources.html`
- > This local web server is not intended to serve the Extensions API Help pages.
+ >**Note** The local web server you start just serves to host the extension samples and tutorial. These extensions have URLs similar to the following: `http://localhost:8765/Samples/Dashboard/DataSources/datasources.html`.
+ > This local web server is not intended to serve the Extensions API Help pages.
> View the Help on GitHub at [https://tableau.github.io/extensions-api](https://tableau.github.io/extensions-api).
### Typescript Development
+
Samples written in Typescript are located in the `Samples-Typescript` folder.
If you want to use TypeScript to write your extensions, you can run a script that starts up the HTTP server and actively listens for changes to the `.ts` files located in the `Samples-Typescript` folder. You can then add your extension to the folder and use the script to transpile your extension to JavaScript.
@@ -41,7 +56,7 @@ If you want to use TypeScript to write your extensions, you can run a script tha
**npm run dev**
-For more information, see [Use TypeScript with the Extensions API](https://tableau.github.io/extensions-api/docs/trex_typescript.html).
+For more information, see [Use TypeScript with the Extensions API](https://tableau.github.io/extensions-api/docs/core/trex_typescript).
### Sandboxed Extension Development Environment
@@ -51,18 +66,19 @@ Tableau is introducing development support for Sandboxed Extensions with Tableau
**npm run start-sandbox**
-2. Launch Tableau (Tableau 2019.3 and later) and try the sample Sandboxed Extension in a dashboard. You can find the `.trex` file and sample code in the `Samples\UINamespace-sandboxed` folder.
+2. Launch Tableau (Tableau 2019.3 and later) and try the sample Sandboxed dashboard extension in a dashboard. You can find the `.trex` file and sample code in the `Samples\Dashboard\UINamespace-sandboxed` folder.
-For more information, see [Create and Test Sandboxed Extensions](https://tableau.github.io/extensions-api/docs/trex_sandbox_test.html).
+For more information, see [Create and Test Sandboxed Extensions](https://tableau.github.io/extensions-api/docs/security/trex_sandbox_test).
## Contributions
+
Contributions and improvements by the community are welcomed!
See the LICENSE file for current open-source licensing and use information.
Before we can accept pull requests from contributors, we require a signed [Contributor License Agreement (CLA)](https://tableau.github.io/contributing.html). To submit a contribution, please fork the repository then submit a pull request to the `main` branch.
## Code Style
-Our sample code follows the [Semi-Standard Style](https://github.com/Flet/semistandard) for JavaScript samples linting and [tslint](https://palantir.github.io/tslint/) for TypeScript. If you add your own extension code to the Samples or Samples-Typescript directories, you can run `npm run lint` to validate the style of your code. Please run this command before submitting any pull requests for Sample code.
+Our sample code follows the [Semi-Standard Style](https://github.com/Flet/semistandard) for JavaScript samples linting and [tslint](https://palantir.github.io/tslint/) for TypeScript. If you add your own extension code to the Samples or Samples-Typescript directories, you can run `npm run lint` to validate the style of your code. Please run this command before submitting any pull requests for Sample code.
`npx semistandard --fix` to fix linting issues which can be fixed automatically.
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