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commit 8c67026760a8e870105b5b4ec7808797e95c65a0 Author: Bikram Choudhury <bchoudhury@microsoft.com> Date: Tue Dec 30 18:26:10 2025 +0530 Refactor dropdown utilities and fix test helper functions commit fda6b59bc16717be91b7041ae4c20e5109f78f12 Author: Bikram Choudhury <bchoudhury@microsoft.com> Date: Sun Dec 28 14:32:11 2025 +0530 Make DataExplorerRoot as an optional check commit 2ce91f1ef808f31b7907cc60ab19a5b2defa5458 Author: Bikram Choudhury <bchoudhury@microsoft.com> Date: Sat Dec 13 18:16:53 2025 +0530 Add test infrastructure and data-test attributes for Container Copy e2e testing
Cosmos DB Explorer
UI for Azure Cosmos DB. Powers the Azure Portal, https://cosmos.azure.com/, and the Cosmos DB Emulator
Getting Started
npm installnpm 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://cdb-ms-mpac-pbe.cosmos.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:
-
Expose these ports publicly: 8081, 8900, 8979, 10250, 10251, 10252, 10253, 10254, 10255, 10256
-
Download and install the emulator: https://docs.microsoft.com/en-us/azure/cosmos-db/local-emulator
-
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:
- Copy .env.example to .env
- Update the values in .env including your local data explorer endpoint (ask a teammate/codeowner for help with .env values)
- Make sure all packages are installed
npm install - Run the server
npm run startand wait for it to start - 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.