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Get Tasks (POST)

Queries for tasks that fulfill a given filter. This method is slightly more powerful than the Get Tasks method because it allows filtering by multiple process or task variables of types String, Number or Boolean. The size of the result set can be retrieved by using the Get Task Count (POST) method.

Security Consideration

There are several parameters (such as assigneeExpression) for specifying an EL expression. These are disabled by default to prevent remote code execution. See the section on security considerations for custom code in the user guide for details.

Method

POST /task

Parameters

Query Parameters

Name	Description
firstResult	Pagination of results. Specifies the index of the first result to return.
maxResults	Pagination of results. Specifies the maximum number of results to return. Will return less results, if there are no more results left.

Request Body

A JSON object with the following properties:

Name Description

processInstanceId Restrict to tasks that belong to process instances with the given id.

processInstanceBusinessKey Restrict to tasks that belong to process instances with the given business key.

processInstanceBusinessKeyIn Restrict to tasks that belong to process instances with one of the give business keys. The keys need to be in a comma-separated list.

processInstanceBusinessKeyLike Restrict to tasks that have a process instance business key that has the parameter value as a substring.

processDefinitionId Restrict to tasks that belong to a process definition with the given id.

processDefinitionKey Restrict to tasks that belong to a process definition with the given key.

processDefinitionKeyIn Restrict to tasks that belong to a process definition with one of the given keys. The keys need to be in a comma-separated list.

processDefinitionName Restrict to tasks that belong to a process definition with the given name.

processDefinitionNameLike Restrict to tasks that have a process definition name that has the parameter value as a substring.

executionId Restrict to tasks that belong to an execution with the given id.

caseInstanceId Restrict to tasks that belong to case instances with the given id.

caseInstanceBusinessKey Restrict to tasks that belong to case instances with the given business key.

caseInstanceBusinessKeyLike Restrict to tasks that have a case instance business key that has the parameter value as a substring.

caseDefinitionId Restrict to tasks that belong to a case definition with the given 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.

caseDefinitionNameLike Restrict to tasks that have a case definition name that has the parameter value as a substring.

caseExecutionId Restrict to tasks that belong to a case execution with the given id.

activityInstanceIdIn Only include tasks which belong to one of the passed activity instance ids.

tenantIdIn Restrict to tasks that belong to one of the given tenant ids. The ids need to be in a comma-separated list.

withoutTenantId Only include tasks which belong to no tenant. Value may only be true, as false is the default behavior.

assignee Restrict to tasks that the given user is assigned to.

assigneeExpression Restrict to tasks that the user described by the given expression is assigned to. See the user guide for more information on available functions.

assigneeLike Restrict to tasks that have an assignee that has the parameter value as a substring.

assigneeLikeExpression Restrict to tasks that have an assignee that has the parameter value described by the given expression as a substring. See the user guide for more information on available functions.

owner Restrict to tasks that the given user owns.

ownerExpression Restrict to tasks that the user described by the given expression owns. See the user guide for more information on available functions.

candidateGroup Only include tasks that are offered to the given group.

candidateGroupExpression Only include tasks that are offered to the group described by the given expression. See the user guide for more information on available functions.

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.

withCandidateUsers Only include tasks which have a candidate user. Value may only be true, as false is the default behavior.

withoutCandidateUsers Only include tasks which have no candidate user. Value may only be true, as false is the default behavior.

candidateUser Only include tasks that are offered to the given user or to one of his groups.

candidateUserExpression Only include tasks that are offered to the user described by the given expression. See the user guide for more information on available functions.

includeAssignedTasks Also include tasks that are assigned to users in candidate queries. Default is to only include tasks that are not assigned to any user if you query by candidate user or group(s).

involvedUser Only include tasks that the given user is involved in. A user is involved in a task if an identity link exists between task and user (e.g., the user is the assignee).

involvedUserExpression Only include tasks that the user described by the given expression is involved in. A user is involved in a task if an identity link exists between task and user (e.g., the user is the assignee). See the user guide for more information on available functions.

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.

taskDefinitionKey Restrict to tasks that have the given key.

taskDefinitionKeyIn Restrict to tasks that have one of the given keys. The keys need to be in a comma-separated list.

taskDefinitionKeyLike Restrict to tasks that have a key that has the parameter value as a substring.

name Restrict to tasks that have the given name.

nameNotEqual Restrict to tasks that do not have the given name.

nameLike Restrict to tasks that have a name with the given parameter value as substring.

nameNotLike Restrict to tasks that do not have a name with the given parameter value as substring.

description Restrict to tasks that have the given description.

descriptionLike Restrict to tasks that have a description that has the parameter value as a substring.

priority Restrict to tasks that have the given priority.

maxPriority Restrict to tasks that have a lower or equal priority.

minPriority Restrict to tasks that have a higher or equal priority.

dueDate Restrict to tasks that are due on the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45.

dueDateExpression Restrict to tasks that are due on the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

dueAfter Restrict to tasks that are due after the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45.

dueAfterExpression Restrict to tasks that are due after the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

dueBefore Restrict to tasks that are due before the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45.

dueBeforeExpression Restrict to tasks that are due before the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

followUpDate Restrict to tasks that have a followUp date on the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45.

followUpDateExpression Restrict to tasks that have a followUp date on the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

followUpAfter Restrict to tasks that have a followUp date after the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45.

followUpAfterExpression Restrict to tasks that have a followUp date after the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

followUpBefore Restrict to tasks that have a followUp date before the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45.

followUpBeforeExpression Restrict to tasks that have a followUp date before the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

followUpBeforeOrNotExistent Restrict to tasks that have no followUp date or a followUp date before the given date. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

followUpBeforeOrNotExistentExpression Restrict to tasks that have no followUp date or a followUp date before the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

createdOn Restrict to tasks that were created on the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45. Note: if the used database saves dates with milliseconds precision this query only will return tasks created on the given timestamp with zero milliseconds.

createdOnExpression Restrict to tasks that were created on the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

createdAfter Restrict to tasks that were created after the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45.

createdAfterExpression Restrict to tasks that were created after the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

createdBefore Restrict to tasks that were created before the given date. The date must have the format yyyy-MM-dd'T'HH:mm:ss, e.g., 2013-01-23T14:42:45.

createdBeforeExpression Restrict to tasks that were created before the date described by the given expression. See the user guide for more information on available functions. The expression must evaluate to a java.util.Date or org.joda.time.DateTime object.

delegationState Restrict to tasks that are in the given delegation state. Valid values are PENDING and RESOLVED.

candidateGroups Restrict to tasks that are offered to any of the given candidate groups. Takes a JSON array of group names, so for example ["developers", "support", "sales"].

candidateGroupsExpression Restrict to tasks that are offered to any of the candidate groups described by the given expression. See the user guide for more information on available functions. The expression must evaluate to java.util.List of Strings.

active Only include active tasks. Value may only be true, as false is the default behavior.

suspended Only include suspended tasks. Value may only be true, as false is the default behavior.

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.

caseInstanceVariables Only include tasks that belong to case 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.

parentTaskId Restrict query to all tasks that are sub tasks of the given task. Takes a task id.

sorting

A JSON array of criteria to sort the result by. Each element of the array is a JSON object that specifies one ordering. The position in the array identifies the rank of an ordering, i.e., whether it is primary, secondary, etc. The ordering objects have the following properties:

sortBy	Mandatory. Sort the results lexicographically by a given criterion. Valid values are `instanceId`, `caseInstanceId`, `dueDate`, `executionId`, `caseExecutionId`,`assignee`, `created`, `description`, `id`, `name`, `nameCaseInsensitive`, `priority`, `processVariable`, `executionVariable`, `taskVariable`, `caseExecutionVariable`, and `caseInstanceVariable`.
sortOrder	Mandatory. Sort the results in a given order. Values may be `asc` for ascending order or `desc` for descending order.
parameters	Mandatory when `sortBy` is either `processVariable`, `executionVariable`, `taskVariable`, `caseExecutionVariable`, or `caseInstanceVariable`. Must be a JSON object with the properties `variable` and `type` where `variable` is a variable name and `type` is the name of a variable value type.

Result

A JSON array of task objects. Each task object has the following properties:

Name	Value	Description
id	String	The task id.
name	String	The task name.
assignee	String	The assignee's id.
owner	String	The owner's id.
created	String	The date the task was created on. Has the format `yyyy-MM-dd'T'HH:mm:ss`.
due	String	The task's due date. Has the format `yyyy-MM-dd'T'HH:mm:ss`.
followUp	String	The follow-up date for the task. Format `yyyy-MM-dd'T'HH:mm:ss`.
delegationState	String	The task's delegation state. Possible values are `PENDING` and `RESOLVED`
description	String	The task's description.
executionId	String	The id of the execution the task belongs to.
parentTaskId	String	The id the parent task, if this task is a subtask.
priority	Number	The task's priority.
processDefinitionId	String	The id of the process definition the task belongs to.
processInstanceId	String	The id of the process instance the task belongs to.
caseExecutionId	String	The id of the case execution the task belongs to.
caseDefinitionId	String	The id of the case definition the task belongs to.
caseInstanceId	String	The id of the case instance the task belongs to.
taskDefinitionKey	String	The task's key.
suspended	Boolean	Whether the task belongs to a process instance that is suspended.
formKey	String	If not null, the form key for the task.
tenantId	String	If not null, the tenant id for the task.

Response Codes

Code	Media type	Description
200	application/json	Request successful.
400	application/json	Returned if some of the query parameters are invalid, for example if a `sortOrder` parameter is supplied, but no `sortBy`, or if an invalid operator for variable comparison is used. See the Introduction for the error response format.

Example

Request