# Cosmos DB Explorer

UI for Azure Cosmos DB. Powers the Azure Portal, https://cosmos.azure.com/, and the Cosmos DB Emulator

## Getting Started

- `npm install`
- `npm run build`

## Developing

### Watch mode

Run `npm start` to start the development server and automatically rebuild on changes

### Hosted Development (https://cosmos.azure.com)

- Visit: `https://localhost:1234/hostedExplorer.html`
- The default webpack dev server configuration will proxy requests to the production portal backend: `https://main.documentdb.ext.azure.com`. This will allow you to use production connection strings on your local machine.

### Emulator Development

- Start the Cosmos Emulator
- Visit: https://localhost:1234/index.html

#### Setting up a Remote Emulator

The Cosmos emulator currently only runs in Windows environments. You can still develop on a non-Windows machine by setting up an emulator on a windows box and exposing its ports publicly:

1. Expose these ports publicly: 8081, 8900, 8979, 10250, 10251, 10252, 10253, 10254, 10255, 10256

2. Download and install the emulator: https://docs.microsoft.com/en-us/azure/cosmos-db/local-emulator

3. Start the emulator from PowerShell:

    > cd C:/

    > .\CosmosDB.Emulator.exe -AllowNetworkAccess -Key="<EMULATOR MASTER KEY>"

### Portal Development

- Visit: https://ms.portal.azure.com/?dataExplorerSource=https%3A%2F%2Flocalhost%3A1234%2Fexplorer.html
- You may have to manually visit https://localhost:1234/explorer.html first and click through any SSL certificate warnings

### Testing

#### Unit Tests

Unit tests are located adjacent to the code under test and run with Jest:

`npm run test`

#### End to End CI Tests

Jest and Puppeteer are used for end to end browser based tests and are contained in `test/`. To run these tests locally:

1. Copy .env.example to .env
2. Update the values in .env including your local data explorer endpoint (ask a teammate/codeowner for help with .env values)
3. Make sure all packages are installed `npm install`
4. Run the server `npm run start` and wait for it to start
5. Run `npm run test:e2e`

### Releasing

We generally adhere to the release strategy documented by the Azure SDK Guidelines. Most releases should happen from the master branch. If master contains commits that cannot be released, you may create a release from a `release/` or `hotfix/` branch. See linked documentation for more details.

### Architecture

# Contributing

Please read the contribution guidelines.

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