Database operations are supported via a RESTful HTTP Interface on the Platform.

Note!

Temporary files are created on the Platform host when the user executes queries via Reference Data Management. These temporary files, which stored in $MZ_HOME/tmp/rowset, are removed automatically when the user session expires. Users sessions expire automatically after six (6) hours.

Restful Operations

The tables below describe the various operation that are available for Reference Data Management.

The service endpoint URI is http://<Platform host>:<port>/api/v1.

If encryption is enabled, the URI is https://<Platform host>:<port>/api/v1.

For further information about enabling encryption, see Network Security in the System Administration user's guide.

Basic authentication is used and you must pass user credentials for each RESTful call.

Create and Get Session

This operation returns a session id which should be appended to all subsequent API calls where this parameter is applicable.

Resource path	/session
HTTP method	GET

Close Session

This operation closes a session. This session id is no longer valid for any subsequent API calls.

Resource path	/session/close?sessionid=<sessionid>
HTTP method	GET

Get Reference Data Profiles

This operation retrieves a list of all Reference Data profiles that are available to the user.

Resource path	/refdatas
HTTP method	GET

Get Metadata

This operation retrieves table metadata that can be used for grid configuration, export, and Import configuration etc. If Last Update feature is enabled, the values stored in the most recent Last Update user and timestamp column will be retrieved as well. The result is returned synchronously.

Resource path	/refdatas/<Reference Data profile>/table/<table name>?sessionid=<session id>
HTTP method	GET

Get Query

This operation executes database queries on specific a Reference Data profile and database table. The query is performed asynchronously and control is returned immediately. You can retrieve the result of the query by using /rowset/<rowset number>?sessionid=<session id>. This operation requires JSON payload as input.

Resource path	/refdatas/<Reference Data profile>/table/<table name>/rowset?sessionid=<session id>
HTTP method	PUT

Get Data Sets

Data sets can be retrieved once downloaded to the file system of the Platform. This operation returns a data set for the given rowset (sequence number). The total number of available data sets can be queried with the status operation.

Resource path	/rowset/<rowset number>?sessionid=<session id>
HTTP method	GET

Get Status

Resource path: /status?sessionid=<session id>

HTTP method: GET

This operation returns a status message. It can be used to retrieve active processes and to query the number of available rows, data sets and status of imports and exports. If Last Update feature is enabled, the values stored in the most recent Last Update user and timestamp column will be retrieved as well.

Note!

The status is used by the Web UI to lock the interface during an active process. This prevents a user from initiating another operation before the first operation initiated is complete. However, Abort process can be used before an operation is complete.

Example - Get status

$ curl -u user:passw \
http://localhost:9000/api/v1/status? \
sessionid=vusncl88sjghv7h8nkb0ohja6t

Abort process

Resource path: /status/abort?sessionid=<session id>

HTTP method: GET

This operation request the active process to abort.

Example - Abort process

$ curl -u user:passw \
http://localhost:9000/api/v1/status/abort? \
sessionid=vusncl88sjghv7h8nkb0ohja6t

Table export

This operation performs a database table export. Input parameters are passed in a JSON format as part of the HTTP message body as a APPLICATION_FORM_URLENCODED string.

Parameters	Description	Value
Resource path	The path to where the resource is located	`/refdatas/<Reference Data profile>/table/<table name>/download?sessionid=<sessionid>`
HTTP method	The HTTP method of the export command.	POST
Basic Auth	This is a required parameter which contains the username and password.	user:passw
Body	This is where the exportParams will be included in url encoding. The exportParams format will include these optional options: opts textQualifier - designated as double quotes by default. separator - designated as a comma by default. extent - designated as all by default. selectedColumns - allows for specific columns to be selected.	Example format: exportParams={"opts":{"textQualifier":"\'","separator":";","extent":"all"},"selectedColumns":["COLUMN1","COLUMN2"]} exportParams=%7B%22opts%22%3A%7B%22textQualifier%22%3A%22%5C'\''%22%2C%22separator%22%3A%22%3B%22%2C%22extent%22%3A%22all%22%7D%2C%22selectedColumns%22%3A%5B%22CITY%22%2C%22CUSTOMER_NAME%22%5D%7D

Example - Table export without options

## exportParams={}

curl -X POST \
'http://localhost:9000/api/v1/refdatas/ref_data_mgmt_oracle.ref_data_mgmt_pf/table/TABLE.CUSTOMERS/download?sessionid=p3hce86dkb4rmls9peh4e8rps9' \
-u "user:passw" \
-H 'content-type: application/x-www-form-urlencoded' \
-d 'exportParams=%7B%7D' \
> Export.csv

Example - Table export with options

## exportParams={"opts":{"textQualifier":"\'","separator":";","extent":"all"},"selectedColumns":["CITY","CUSTOMER_NAME"]}

curl -X POST \
  'http://localhost:9000/api/v1/refdatas/ref_data_mgmt_oracle.ref_data_mgmt_pf/table/TABLE.CUSTOMERS/download?sessionid=p3hce86dkb4rmls9peh4e8rps9' \
  -u "user:passw" \
  -H 'content-type: application/x-www-form-urlencoded' \
  -d 'exportParams=%7B%22opts%22%3A%7B%22textQualifier%22%3A%22%5C'\''%22%2C%22separator%22%3A%22%3B%22%2C%22extent%22%3A%22all%22%7D%2C%22selectedColumns%22%3A%5B%22CITY%22%2C%22CUSTOMER_NAME%22%5D%7D'
> Export.csv

Table Import

This operation performs a database table import. Input parameters are passed in a JSON format as part of the HTTP message body.

Parameters	Description	Value
Resource path	The path to where the resource is located	`/refdatas/<Reference Data profile>/table/<table name>/upload?sessionid=<sessionid>`
HTTP method	The HTTP method of the import command.	POST
Basic Auth	This is a required parameter which contains the username and password.	user:passw
File Input	This is where the file input will be included in url encoding. The exportParams format will include these optional opts: textQualifier - designated as double quotes by default. separator - designated as a comma by default. append/truncate - designated as append by default. Changing to truncate will result in the existing data in the table to be truncated before the import is executed. force - designated as false by default.	Example format: file=@/<path to csv file>/test.csv 'opts={"textQualifier":"\'","separator":",","op":"append","force":false}' file=@/path/to/import_test.csv 'opts={"textQualifier":"\'","separator":",","op":"append","force":false}'

Example - Table import without options

curl -i -u "user:passw" \
  'http://localhost:9000/api/v1/refdatas/ref_data_mgmt_oracle.ref_data_mgmt_pf/table/TABLE.CUSTOMERS/upload?sessionid=rssrh20dcd8lc1j505b3bqnstc' \
  -F file=@/path/to/import_test.csv

Example - Table import with options

curl -i -u "user:passw" \
  'http://localhost:9000/api/v1/refdatas/ref_data_mgmt_oracle.ref_data_mgmt_pf/table/TABLE.CUSTOMERS/upload?sessionid=p3hce86dkb4rmls9peh4e8rps9' \
  -F file=@/path/to/import_test.csv \
  -F 'opts={"textQualifier":"\'","separator":",","op":"truncate","force":false}'

Save Changes

Resource path: /save?sessionid=<session id>

HTTP method: PUT

This operation saves data grid edit modification (post insert/update/delete). Changes are saved within client session. This operation requires JSON payload as input.

Note!

tableName and refProfile are mandatory in order to save. A single table can be modified in a single session only.

Note!

The save operation is supported either on Oracle (based on ROWID pseudo column) or non-Oracle type tables containing Primary Key constraint. Non-Oracle tables without a Primary Key are not supported for data modifications.

Example - Save changes

$ curl -X PUT -T="example.json" \
http://user:passw@localhost:9000/api/v1/save? \
sessionid=vusncl88sjghv7h8nkb0ohja6t

example.json:

{
	"dataEdit": {
		"refProfile": "Default.refTest",
		"tableName": "MZADMIN.REFRENCE_DATA",
		"updates": [{
			"action": "insert",
			"values": [{
				"column": "ID",
				"value": 645
			}, {
				"column": "FIRSTNAME",
				"value": "Roberts"
			}, {
				"column": "LASTNAME",
				"value": "Polis"
			}]
		}]
	}
}

Commit Changes

Resource path: /save/commit?force=<true|false>&sessionid=<session id>

HTTP method: GET

This operation applies saved edits in the database and commits the work in case of success. You can use "force" commit in case of errors.

Example - Commit changes

$ curl -u user:passw \
http://localhost:9000/api/v1/commit? \
force=false&sessionid=vusncl88sjghv7h8nkb0ohja6t

List Changes

Resource path: /save/list?sessionid=<session id>

HTTP method: GET

This operation returns a list of the modifications saved. You can use this operation to reapply changes in the Web UI during a grid refresh.

Example - List changes

$ curl -u user:passw \
http://localhost:9000/api/v1/save/list?
\sessionid=vusncl88sjghv7h8nkb0ohja6t

Cancel Changes

Resource path: /save/cancel?sessionid=<session id>

HTTP method: PUT

This operation cancels the changes made from being saved. As the input, Json payload specifies either all the changes to be canceled or lists the selected Primary Keys to be cancelled. You can cancel the saving of several changes at the same time (one Primary Key per change). The scope is single or all. The format is the same as for the Save changes operation but the ID fields are stored in a root structure. Ids are in a JSON array to hold multiple Primary Keys to be cancelled.

Note!

The Web UI generates surrogate Primary Keys for inserted rows for the cancel function.

Example - Cancel changes

$ curl -u user:passw \
http://localhost:9000/api/v1/save/cancel? \
sessionid=vusncl88sjghv7h8nkb0ohja6t

example.json:

{
	"dataEdit": {
		"scope": "single",
		"ids": [{
			"id": [{
				"column": "ORDER_NUM",
				"value": 10398005
			}]
		}]
	}
}

Example response:

{
	"dataEdit": {
		"updates": [{
			"action": "update",
			"ids": [{
				"column": "ORDER_NUM",
				"value": 10398005
			}],
			"undoRow": [{
					"column": "SHIPPING_DATE",
					"value": "2011 - 05 - 24 00: 00: 00"
				},
				{
					"column": "ORDER_NUM",
					"value": 10398005
				},
				{
					"column": "QUANTITY",
					"value": 100
				}
			],
			"values": [{
				"column": "FREIGHT_COMPANY",
				"value": "Zagreb"
			}],
			"SaveSize": 3
		}]
	}
}

Note!

SaveSize indicates the number of changes remaining.

Show Demo Query

Resource path: /demo/queryRequestParameters

HTTP method: GET

This operation shows the json payload format that applies for a query operation e g rowset/.

Show Demo Changes

Resource path: /demo/dataEditRequestParameters

HTTP method: GET

This operation shows the json payload format that applies to edit data via the Web UI e g save/commit.

RESTful Interface

Restful Operations

Create and Get Session

Close Session

Get Reference Data Profiles

Get Metadata

Get Query

Get Data Sets

Get Status

Note!

Example - Get status

Abort process

Example - Abort process

Table export

Example - Table export without options

Example - Table export with options

Table Import

Example - Table import without options

Example - Table import with options

Save Changes

Note!

Note!

Example - Save changes

Commit Changes

Example - Commit changes

List Changes

Example - List changes

Cancel Changes

Note!

Example - Cancel changes

Note!

Show Demo Query

Show Demo Changes