Metadata Query API

MetadataQueryRestful class

Interface address:

Request method: GET

Request data type: application/x-www-form-urlencoded

Response data type: application/json

Interface description: Get the column information of the data table

Request Parameters:

Sample Response:

Interface address:/api/rest_j/v1//metadataQuery/getDatabases

Request method: GET

Request data type: application/x-www-form-urlencoded

Response data type: application/json

Interface description: Get the list of database names of the data source

Request Parameters:

Parameter name	Parameter description	Request type	Required	Data type	schema
dataSourceName	dataSourceName	path	true	string
system	system	query	true	string

{
    "method": null,
    "status": 0,
    "message": "OK",
    "data": {
        "dbs": [
            "information_schema",
            "linkis",
            "linkis_sit"
        ]
    }
}

return value adjusted to props -> partitions

Interface address:/api/rest_j/v1//metadataQuery/getPartitions

Request method: GET

Request data type: application/x-www-form-urlencoded

Response data type: application/json

Interface description:

Request Parameters:

Sample Response:

Interface address:/api/rest_j/v1//metadataQuery/getTableProps

Request method: GET

Request data type:

Response data type: application/json

Interface description:

Parameter name	Parameter description	Request type	Required	Data type
dataSourceName	dataSourceName	path	true	string
database	database	path	true	string
system	system	query	true	string
table	table	path	true	string

Sample Response:

{
    "method": null,
    "status": 0,
    "message": "OK",
    "data": {
            "skip.header.line.count": "1",
            "columns.types": "int:int:string:string:string:string:string:string:string:string:string:string:string:string:string:string:string:string:string:string",
            "columns": "id,age,job,marital,education,default,balance,housing,loan,contact,day,month,duration,campaign,pdays,previous,poutcome,y",
            "field.delim": ",",
            "transient_lastDdlTime": "1646732554",
            "partition_columns.types": "string",
            "columns.comments": "\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000",
            "bucket_count": "-1",
            "serialization.ddl": "struct demo_data { i32 id, i32 age, string job, string marital, string education, string default, string balance, string housing, string loan, string contact, string day, string month, string duration, string campaign, string pdays, string previous, string poutcome, string y}",
            "file.outputformat": "org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat",
            "partition_columns": "ds",
            "colelction.delim": "-",
            "serialization.lib": "org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe",
            "name": "dss_autotest.demo_data",
            "location": "hdfs://bdpdev01/user/hive/warehouse/hadoop/dss_autotest.db/demo_data",
            "mapkey.delim": ":",
            "file.inputformat": "org.apache.hadoop.mapred.TextInputFormat",
            "serialization.format": ",",
        }
    }
}

Interface address:/api/rest_j/v1//metadataQuery/getPartitionProps

Request method: GET

Request data type: application/x-www-form-urlencoded

Response data type: application/json

Interface description:

Request Parameters:

Sample Response:

Interface address:/api/rest_j/v1//metadataQuery/getTables

Request method: GET

Request data type: application/x-www-form-urlencoded

Response data type: application/json

Interface description: Get the list of data tables of a database of the data source

Parameter name	Parameter description	Request type	Required	Data type
dataSourceName	dataSourceName	path	true	string
database	database	path	true	string
system	system	query	true	string

Sample Response:

{
    "method": null,
    "status": 0,
    "message": "OK",
    "data": {
        "tables": [
            "test",
            "test_0317a",
            "test_import_sqoop_1",
            "test_linkis_sqoop_1",
            "test_linkis_sqoop_2",
            "test_linkis_sqoop_3",
            "upload_test"
        ]