Queries for the number of historic tasks that fulfill the given parameters.Takes the same parameters as the Get Tasks (Historic) method.Corresponds to the size of the result set of the Get Tasks (Historic) (POST) method and takes the same parameters.

Method

POST /history/task/count

Parameters

Request Body

A JSON object with the following properties:

Name	Description
taskId	Filter by task id.
taskParentTaskId	Filter by parent task id.
processInstanceId	Filter by process instance id.
processInstanceBusinessKey	Filter by process instance business key.
processInstanceBusinessKeyIn	Filter by process instances with one of the give business keys. The keys need to be in a comma-separated list.
processInstanceBusinessKeyLike	Filter by process instance business key that has the parameter value as a substring.
executionId	Filter by the id of the execution that executed the task.
processDefinitionId	Filter by process definition id.
processDefinitionKey	Restrict to tasks that belong to a process definition with the given key.
processDefinitionName	Restrict to tasks that belong to a process definition with the given name.
caseInstanceId	Filter by case instance id.
caseExecutionId	Filter by the id of the case execution that executed the task.
caseDefinitionId	Filter by case definition id.
caseDefinitionKey	Restrict to tasks that belong to a case definition with the given key.
caseDefinitionName	Restrict to tasks that belong to a case definition with the given name.
activityInstanceIdIn	Only include tasks which belong to one of the passed and comma-separated activity instance ids.
taskName	Restrict to tasks that have the given name.
taskNameLike	Restrict to tasks that have a name with the given parameter value as substring.
taskDescription	Restrict to tasks that have the given description.
taskDescriptionLike	Restrict to tasks that have a description that has the parameter value as a substring.
taskDefinitionKey	Restrict to tasks that have the given key.
taskDefinitionKeyIn	Restrict to tasks that have one of the given key.
taskDeleteReason	Restrict to tasks that have the given delete reason.
taskDeleteReasonLike	Restrict to tasks that have a delete reason that has the parameter value as a substring.
taskAssignee	Restrict to tasks that the given user is assigned to.
taskAssigneeLike	Restrict to tasks that are assigned to users with the parameter value as a substring.
taskOwner	Restrict to tasks that the given user owns.
taskOwnerLike	Restrict to tasks that are owned by users with the parameter value as a substring.
taskPriority	Restrict to tasks that have the given priority.
assigned	If set to true, restricts the query to all tasks that are assigned.
unassigned	If set to true, restricts the query to all tasks that are unassigned.
finished	Only include finished tasks. Value may only be true, as false is the default behavior.
unfinished	Only include unfinished tasks. Value may only be true, as false is the default behavior.
processFinished	Only include tasks of finished processes. Value may only be true, as false is the default behavior.
processUnfinished	Only include tasks of unfinished processes. Value may only be true, as false is the default behavior.
taskDueDate	Restrict to tasks that are due on the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
taskDueDateBefore	Restrict to tasks that are due before the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
taskDueDateAfter	Restrict to tasks that are due after the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
taskFollowUpDate	Restrict to tasks that have a followUp date on the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
taskFollowUpDateBefore	Restrict to tasks that have a followUp date before the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
taskFollowUpDateAfter	Restrict to tasks that have a followUp date after the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
startedBefore	Restrict to tasks that were started before the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
startedAfter	Restrict to tasks that were started after the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
finishedBefore	Restrict to tasks that were finished before the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
finishedAfter	Restrict to tasks that were finished after the given date. By default*, the date must have the format yyyy-MM-dd'T'HHss.SSSZ, e.g., 2013-01-23T14:42:45.000+0200.
tenantIdIn	Filter by a list of tenant ids. A task instance must have one of the given tenant ids. Must be a JSON array of Strings.
taskVariables	A JSON array to only include tasks that have variables with certain values. The array consists of JSON objects with three properties name, operator and value. name is the variable name, operator is the comparison operator to be used and value the variable value. value may be of type String, Number or Boolean. Valid operator values are: eq - equal to; neq - not equal to; gt - greater than; gteq - greater than or equal to; lt - lower than; lteq - lower than or equal to; like.
processVariables	A JSON array to only include tasks that belong to a process instance with variables with certain values. The array consists of JSON objects with three properties name, operator and value. name is the variable name, operator is the comparison operator to be used and value the variable value. value may be of type String, Number or Boolean. Valid operator values are: eq - equal to; neq - not equal to; gt - greater than; gteq - greater than or equal to; lt - lower than; lteq - lower than or equal to; like.
taskInvolvedUser	Restrict to tasks with a historic identity link to the given user.
taskInvolvedGroup	Restrict to tasks with a historic identity link to the given group.
taskHadCandidateUser	Restrict to tasks with a historic identity link to the given candidate user.
taskHadCandidateGroup	Restrict to tasks with a historic identity link to the given candidate group.
withCandidateGroups	Only include tasks which have a candidate group. Value may only be true, as false is the default behavior.
withoutCandidateGroups	Only include tasks which have no candidate group. Value may only be true, as false is the default behavior.

• For further information, please see the documentation.

Result

A JSON object that contains the count as the only property.

Response Codes

Example

Request

POST /history/task/count

Request Body:

{"taskVariables":
    [{"name": "varName",
    "value": "varValue",
    "operator": "eq"
    },
    {"name": "anotherVarName",
    "value": 30,
    "operator": "neq"}],
"priority":10}

Response

{"count": 1}

原文: https://docs.camunda.org/manual/7.9/reference/rest/history/task/post-task-query-count/