Queries for the number of historic tasks that fulfill the given parameters.Takes the same parameters as the Get Tasks (Historic) method.

Method

GET /history/task/count

Parameters

Query Parameters

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 passed and comma-separated task definition keys.
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 comma-separated list of tenant ids. A task instance must have one of the given tenant ids.
taskVariables	Only include tasks that have variables with certain values. Variable filtering expressions are comma-separated and are structured as follows: A valid parameter value has the form `key_operator_value`. `key` is the variable name, `operator` is the comparison operator to be used and `value` the variable value.Note: Values are always treated as `String` objects on server side. 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`. `key` and `value` may not contain underscore or comma characters.
processVariables	Only include tasks that belong to process instances that have variables with certain values. Variable filtering expressions are comma-separated and are structured as follows: A valid parameter value has the form `key_operator_value`. `key` is the variable name, `operator` is the comparison operator to be used and `value` the variable value.Note: Values are always treated as `String` objects on server side. 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`. `key` and `value` may not contain underscore or comma characters.
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.

Name	Value	Description
count	Number	The number of matching historic tasks.

Response Codes

Code	Media type	Description
200	application/json	Request successful.
400	application/json	Returned if some of the query parameters are invalid. See the Introduction for the error response format.

Example

Request

GET /history/task/count?taskAssginee=anAssignee&taskPriority=50

Response

{"count": 1}

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

Get List Count