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Get Flow Instance¶

Get the information of a specified workflow instance.

Prerequisite¶

The user must be an EnOS user.

Request Format¶

GET https://{apigw-address}/dataflow-batch-service/v2.0/flowInstances

Request Parameters (URI)¶

Name	Location (Path/Query)	Mandatory/Optional	Data Type	Description
flowInstId	Query	Mandatory	String	The ID of the workflow instance.
userId	Query	Mandatory	String	The user ID. How to get userId>>
orgId	Query	Mandatory	String	The organization ID which the user belongs to. How to get orgId>>
action	Query	Mandatory	String	Fixed value: get

Response Parameters¶

Name	Data Type	Description
data	FlowInstance Struct	The detailed information of the workflow instance. For more information, see FlowInstance Struct

FlowInstance Struct¶

Sample¶

{
    "instanceId": "2438-201907261239",
    "flowId": 2438,
    "flowName": "rew",
    "freq": "0 1/1 * * * ? *",
    "cycle": "mi",
    "parameters": "[]",
    "doAs": "yourDoAs",
    "graph": "{"creator":"yourCreator","freq":"0 1/1 * * * ? *","alertMode":3,"owners":";yourOwners;","cycle":"mi","doAs":"yourDoAs","flows":[],"alertTo":"","name":"rew","instId":"2438-201907261239","id":2438,"relations":[],"parameters":"[]","appId":"","tasks":[{"taskName":"fr","taskInstId":"104452-201907261239","x":0.0198,"y":0.0045,"taskId":104452,"nodeId":"t_104452","status":"SUCCESS"}]}",
    "status": 0,
    "statusDesc": "INIT",
    "triggerTime": "2019-07-26 20:39:00",
    "startTime": "2019-07-26 12:39:37",
    "endTime": "2019-07-26 12:39:42",
    "timestamp": "2019-07-26 12:38:30.0",
    "virtual": false,
    "owner": "yourOwners",
    "alertMode": 3,
    "calDt": "2019-07-25",
    "hasEditPri": false,
    "hasReadPri": true
}

Parameters¶

Name	Data Type	Description
instanceId	String	The ID of the workflow instance.
flowId	Integer	The workflow ID.
flowName	String	The workflow name.
freq	String	If CronTab syntax is used when specifying the time to start the workflow in a scheduling cycle, a 7-character CronTab expression is used. For more information about CronTab, see the Cron Expression Explainer
cycle	String	The scheduling cycle. M: Month W: Week D: Day H: Hour mi: Minute
parameters	Map	The global parameters that are configured for the workflow to dynamically adapt to the environment changes (in the format of key=value).
doAs	String	The big data account of the organization to which the workflow belongs.
graph	InstanceGraph Struct	The task dependency of the workflow instance. For more information, see InstanceGraph Struct
status	Integer	The task running status.
statusDesc	String	The description of the task running status.
triggerTime	String	The planned triggering time of the task.
startTime	String	The start time of the task.
endTime	String	The end time of the task.
timestamp	String	The time when the instance was created.
virtual	Boolean	true = the workflow instance is a virtual instance false = the workflow instance is not a virtual instance
owner	String	The owner of the workflow instance.
alertMode	Integer	The alert mode. 0: Not enabled 1: Email 2: SMS 3: Email and SMS
calDt	String	The business date (date from which the data starts to be processed by the workflow).
hasEditPri	Boolean	true = the user has editing permission for the workflow false = the user does not have editing permission for the workflow
hasReadPri	Boolean	true = the user has reading permission for the workflow false = the user does not have reading permission for the

InstanceGraph Struct¶

Sample¶

{
  "creator":"yourCreator",
  "freq":"0 0 0 * * ? *",
  "alertMode":3,
  "owners":"yourOwners",
  "cycle":"D",
  "doAs":"yourDoAs",
  "flows":[],
  "alertTo":"",
  "name":"21",
  "instId":"2809-20190812080700",
  "id":2809,
  "relations":[],
  "parameters":"[]",
  "appId":"",
  "tasks":
      [{
      "taskName":"tass",
      "taskInstId":"104890-20190812080700",
      "x":0.002,
      "y":0.002,
      "taskId":104890,
      "nodeId":"t_104890",
      "status":"CANCEL"}]
}

Parameters¶

Name	Data Type	Description
creator	String	The username of the user who created the workflow instance.
freq	String	If CronTab syntax is used when specifying the time to start the workflow in a scheduling cycle, a 7-character CronTab expression is used. For more information about CronTab, see the Cron Expression Explainer
alertMode	Integer	The alert mode. 0: Not enabled 1: Email 2: SMS 3: Email and SMS
owners	String	The username of the owners of the workflow. The semicolon (;) is used to separate each owner, for example, owners=”userNameA;userNameB”.
cycle	String	The scheduling cycle. M: Month W: Week D: Day H: Hour mi: Minute
doAs	String	The big data account of the organization to which the workflow belongs.
flows	Array of FlowInstanceGraph Struct	The workflow dependency of the workflow instance. For more information, see FlowInstanceGraph Struct
alertTo	String	Receiver of alerts
name	String	The workflow name.
instId	Integer	The ID of the workflow instance.
id	Integer	The workflow ID.
relations	Array of Relation Structs	The list of relations between tasks in the workflow, with each element representing the upstream and downstream dependency. For more information, see Relation Struct
parameters	Array	The parameters that are configured for the task to dynamically adapt to the environment changes (in the format of key=value)
tasks	Array of TaskInstanceGraph Structs	The list of all task instances in the workflow instance. For more information, see TaskInstanceGraph Struct

FlowInstanceGraph Struct¶

Sample¶

{
  "flowId":"2809",
  "flowName":"21",
  "nodeId":"f_2809",
  "isVirtual":false,
  "x":0.0125,
  "y":0.0015,
  "flowInstId":"2809-20190812101300",
  "status":"NONE"
}

Parameters¶

Name	Data Type	Description
flowId	String	The workflow ID.
flowName	String	The workflow name.
nodeId	String	The ID of the node that is part of other workflows.
isVirtual	Boolean	true = the workflow is a virtual workflow false = the workflow is not a virtual workflow
x	Double	The x-axis of the node on the configuration panel of the workflow.
y	Double	The y-axis of the node on the configuration panel of the workflow.
flowInstId	String	The ID of the workflow instance.

TaskInstanceGraph Struct¶

Sample¶

{
  "taskName":"tass",
  "taskInstId":"105048-20190812101300",
    "x":0.0132,
    "y":0.008100000381469727,
    "taskId":"104575",
    "nodeId":"t_104575",
  "status":"INIT"
}

Parameters¶

Name	Data Type	Description
taskName	String	The task name.
taskInstId	String	The ID of the task instance.
x	Double	The x-axis of the task on the configuration panel.
y	Double	The y-axis of the task on the configuration panel.
taskId	String	The task ID.
nodeId	String	The node ID (Note: The node ID is not the same as the task ID, because there are task nodes and workflow nodes that have dependency relations in a workflow).
status	String	The status of the task instance.

Error Code¶

See Common Error Codes.

Samples¶

Request Sample¶

url: https://{apigw-address}/dataflow-batch-service/v2.0/flowInstances?action=get&flowInstId=2809-20190808093200&userId=yourUserId&orgId=yourOrgId
method: GET

Return Sample¶

{
  "status": 0,
  "msg": " Success",
  "data": {
    "instanceId": "2809-20190808093200",
    "flowId": 2809,
    "flowName": "21",
    "freq": "0 0 0 * * ? *",
    "cycle": "D",
    "parameters": "[]",
    "doAs": "yourDoAs",
    "graph": "{"creator":"yourCreator","freq":"0 0 0 * * ? *","alertMode":3,"owners":"yourOwners","cycle":"D","doAs":"yourDoAs","flows":[],"alertTo":"","name":"21","instId":"2809-20190808093200","id":2809,"relations":[],"parameters":"[]","appId":"","tasks":[{"taskName":"tass","taskInstId":"104890-20190808093200","x":0.002,"y":0.002,"taskId":104890,"nodeId":"t_104890","status":"SUCCESS"}]}",
    "status": 1,
    "statusDesc": "SUCCESS",
    "triggerTime": "2019-08-08 09:32:12",
    "startTime": "2019-08-08 09:32:30",
    "endTime": "2019-08-08 09:32:32",
    "timestamp": "2019-08-08 09:34:36.0",
    "virtual": false,
    "owner": "yourOwners",
    "alertMode": 3,
    "calDt": "2019-08-07",
    "hasEditPri": true,
    "hasReadPri": true
  }
}

Java SDK Sample¶

import com.alibaba.fastjson.JSONObject;
import com.envision.apim.poseidon.config.PConfig;
import com.envision.apim.poseidon.core.Poseidon;

public class Request extends PoseidonRequest {
    public void setQueryParam(String key, Object value){
        queryParams().put(key, value);
    }
    public void setHeaderParam(String key, String value){
        headerParams().put(key, value);
    }
    public void setBodyParam(Map<String, Object> bodyPara){
        bodyParams().putAll(bodyPara);
    }
    public void setMethod(String method) {
        this.method = method;
    }
    private String method;
    public String baseUri() {
        return "";
    }
    public String method() {
        return method;
    }
}

public void flowInstanceTest(){
        //1. Select Application Registration from the left navigation bar of EnOS Console.
        //2. Open the App Detail page to get the AccessKey and SecretKey of the application.

        String accessKey = "yourAppAccessKey";
        String secretKey = "yourAppSecretKey";

        //Create a request and save the required parameters in the map of the Query.
        Request request = new Request();
        request.setQueryParam("flowInstId","2924-20190812013400");
        request.setQueryParam("userId","yourUserId");
        request.setQueryParam("orgId","yourOrgId");
        request.setMethod("GET");

        try {
            JSONObject response = Poseidon.config(PConfig.init().appKey(accessKey).appSecret(secretKey).debug())
                    .url("https://{apigw-address}/dataflow-batch-service/v2.0/flowInstances?action=get")
                    .getResponse(request, JSONObject.class);
            System.out.println(response);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }