datahub/datahub-gms-graphql-service

Datahub GMS GraphQL Service

Datahub GMS GraphQL Service wraps the Generalized Metadata Store (GMS) Rest.li calls around a GraphQL API.

Pre-requisites

• You need to have JDK8 installed on your machine to be able to build Datahub GMS GraphQL Service.

Build

To build Datahub GMS GraphQL Service

./gradlew :datahub-gms-graphql-service:build

Dependencies

Before starting Datahub GMS GraphQL Service, you need to make sure that DataHub GMS is up and running.

Start via Docker image

Quickest way to try out Datahub GMS Graphql Service is running the Docker image.

Start via command line

If you do modify things and want to try it out quickly without building the Docker image, you can also run the application directly from command line after a successful build:

./gradlew :datahub-gms-graphql-service:bootRun

API Calls

Inorder to Start using the graphql API we would recommend you download GraphiQL

Endpoint: http://localhost:8091/graphql

Sample API Calls

Query Dataset

Request:

{
  dataset(urn: "urn:li:dataset:(urn:li:dataPlatform:foo,bar,PROD)") {
    urn
    platform
    name
    origin
    description
    platformNativeType
    uri
    tags
    ownership {
      owners {
        owner {
          username
          urn
          info {
            displayName
            email
            fullName
            manager {
              urn
            }
          }
          editableInfo {
            aboutMe
            skills
          }
        }
        type
        source {
          url
        }
      }
      lastModified {
        actor
      }
    }
    created {
      actor
    }
    lastModified {
      actor
    }
  }
}

Sample Response:

{
  "data": {
    "dataset": {
      "urn": "urn:li:dataset:(urn:li:dataPlatform:foo,bar,PROD)",
      "platform": "urn:li:dataPlatform:foo",
      "name": "bar",
      "origin": "PROD",
      "description": "Sample Dataset",
      "platformNativeType": null,
      "uri": null,
      "tags": [
        "Datahub",
        "Sample"
      ],
      "ownership": {
        "owners": [
          {
            "owner": {
              "username": "fbar",
              "urn": "urn:li:corpuser:fbar",
              "info": {
                "displayName": "Foo Bar",
                "email": "fbar@linkedin.com",
                "fullName": "Foo Bar",
                "manager": {
                  "urn": "urn:li:corpuser:datahub"
                }
              },
              "editableInfo": {
                "aboutMe": "About Me",
                "skills": [
                  "Java",
                  "SQL"
                ]
              }
            },
            "type": "DATAOWNER",
            "source": null
          }
        ],
        "lastModified": {
          "actor": "urn:li:corpuser:fbar"
        }
      },
      "created": {
        "actor": "urn:li:corpuser:fbar"
      },
      "lastModified": {
        "actor": "urn:li:corpuser:fbar"
      }
    }
  }
}