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			65 lines
		
	
	
		
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			Markdown
		
	
	
	
	
	
			
		
		
	
	
			65 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| title: APIs
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| slug: /main-concepts/metadata-standard/apis
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| ---
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| 
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| # APIs
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| 
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| OpenMetadata supports REST APIs for getting data and in and out of the metadata service. APIs are built using general
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| best practices of REST API design. We take a schema-first approach by defining Types and Entities in JSON Schema. We
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| implement APIs based on these schemas.
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| 
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| ## Overview
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| 
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| ### URI
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| 
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| Following REST API conventions are followed for Resource URIs:
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| - Operations for an entity are available through the Resource URI as a collection `.../api/<version>/entities`. 
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| - Plural of the entity name is used as the collection name - example `.../api/v1/users`.
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| - Trailing forward slash is not used in the endpoint URI. Example use `.../api/v1/databases` instead of `.../api/v1/databases/`.
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| - Resource URI for an entity instance by the entity id is `.../api/v1/entities/{id}`. 
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| - Resource URI for an entity instance by name is `.../api/v1/entities/name/{name}`.
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| 
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| ### Resource Representation
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| 
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| - The REST API calls return a response with JSON `Content-Type` and `Content-Length` that includes the length of the response.
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| - All responses include the Resource ID field even though the id was provided in the request to simplify the consumption 
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|   of the response at the client.
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| - Entity names and field names use `camelCase` per Javascript naming convention.
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| - All resources include an attribute `href` with Resource URI. All relationship fields of an entity will also 
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|   include `href` links to the related resource for easy access.
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| - Unknown fields sent by the client in API requests are not ignored to ensure the data sent by the client is not dropped 
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|   at the server without the user being aware of it.
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| 
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| ## API Organization
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| 
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| You can find the swagger documentation [here](/swagger.html). In a nutshell:
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| 
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| **Data Asset APIs** - support operations related to data asset entities.
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| - `.../api/v1/databases`
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| - `...api/v1/tables`
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| - `.../api/v1/metrics`
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| - `.../api/v1/dashboards`
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| - `.../api/v1/reports`
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| - `.../api/v1/pipelines`
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| - `.../api/v1/topics`
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| 
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| **Service APIs** - support operations related to services from which metadata is collected:
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| - `.../api/v1/services` is the collection of all service resources.
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| - `.../api/v1/services/databaseService` - APIs related to database services. This includes Transactional databases - MySQL, Postgres, MSSQL, Oracle, and Data Warehouses - Apache Hive BigQuery, Redshift, and Snowflake.
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| - `.../api/v1/services/dashboardService` - APIs related to Dashboard Services. This includes Looker, Superset, and Tableau.
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| - `.../api/v1/services/messagingService` - APIs related to Messaging Services. This includes Apache Kafka, Redpanda, - Kinesis, and others.
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| 
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| **Teams & Users APIs**
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| - `.../api/v1/teams` - APIs related to team entities
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| - `.../api/v1/users` - APIs related to user entities
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| 
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| **Search & Suggest APIs** - support search and suggest APIs:
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| - `.../api/v1/search` - collection for search and suggest APIs
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| - `.../api/v1/search/query` - search entities using query text
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| - `.../api/v1/search/suggest` - get suggested entities used for auto-completion
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| 
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| **Other APIs**
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| - `.../api/v1/tags` for APIs related to Classification and Tag entities
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| - `../api/v1/feeds` for APIs related to Threads and Posts entities
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| - `.../api/v1/usage` for reporting usage information of entities | 
