import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; # Applications (Experimental - Beta Feature) ## Why Would You Use Applications? Applications are groupings of assets based on a particular purpose, similar to domains and data products. For more information on what an Application is, and how it differs from other concepts, refer to [About DataHub Applications](/docs/features/feature-guides/applications.md). ### Goal Of This Guide This guide will show you how to - Create an application. - Read the application attached to a dataset. - Add a dataset to an application - Remove the application from a dataset. ## Prerequisites For this tutorial, you need to deploy DataHub Quickstart and ingest sample data. For detailed steps, please refer to [Datahub Quickstart Guide](/docs/quickstart.md). ## Create Application ```json mutation createApplication { createApplication( input: { properties: { name: "My New Application" description: "An optional description" } } ) } ``` If you see the following response, the operation was successful: ```json { "data": { "createApplication": "" }, "extensions": {} } ``` ```python {{ inline /metadata-ingestion/examples/library/create_application.py show_path_as_comment }} ``` ### Expected Outcomes of Creating Applications You can now see the applications under `Applications` sidebar section.

## Read Applications ```json query { dataset(urn: "urn:li:dataset:(urn:li:dataPlatform:hive,fct_users_created,PROD)") { application { application { urn properties { name description } } } } } ``` If you see the following response, the operation was successful: ```python { "data": { "dataset": { "application": { "application": { "urn": "urn:li:application:71b3bf7b-2e3f-4686-bfe1-93172c8c4e10", "properties": { "name": "Cancellation Processing" } } } } }, "extensions": {} } ``` ## Add Application ```json mutation batchSetApplication { batchSetApplication( input: { resourceUrns: [ "urn:li:dataset:(urn:li:dataPlatform:bigquery,banking.public.customer,PROD)" ] applicationUrn: "urn:li:application:new-customer-signup" } ) } ``` If you see the following response, the operation was successful: ```json { "data": { "batchSetApplication": true }, "extensions": {} } ``` ```python {{ inline /metadata-ingestion/examples/library/add_application.py show_path_as_comment }} ``` ### Expected Outcomes of Adding Application You can now see the application has been added to the dataset. ## Remove Applications ```json mutation batchSetApplication { batchSetApplication( input: { resourceUrns: [ "urn:li:dataset:(urn:li:dataPlatform:bigquery,banking.public.customer,PROD)" ], applicationUrn: null } ) } ``` Expected Response: ```python { "data": { "batchSetApplication": true }, "extensions": {} } ``` ```python {{ inline /metadata-ingestion/examples/library/remove_application.py show_path_as_comment }} ```