datahub/datahub-web-react/src/graphql/dataJob.graphql

query getDataJob($urn: String!) {
    dataJob(urn: $urn) {
        ...dataJobFields
        downstreamLineage {
            ...downstreamRelationshipFields
        }
        upstreamLineage {
            ...upstreamRelationshipFields
        }
    }
}

mutation updateDataJob($input: DataJobUpdateInput!) {
    updateDataJob(input: $input) {
        ...dataJobFields
        downstreamLineage {
            ...downstreamRelationshipFields
        }
        upstreamLineage {
            ...upstreamRelationshipFields
        }
    }
}