Queries for the number of process instances that fulfill the given parameters.This method takes the same message body as the Get Instances (POST)and therefore it is slightly more powerful than the Get Instance Count method.

Method

POST /process-instance/count

Parameters

Request Body

A JSON object with the following properties:

Name	Description
processInstanceIds	Filter by a list of process instance ids. Must be a JSON array of Strings.
businessKey	Filter by process instance business key.
businessKeyLike	Filter by process instance business key that the parameter is a substring of.
caseInstanceId	Filter by case instance id.
processDefinitionId	Filter by the process definition the instances run on.
processDefinitionKey	Filter by the key of the process definition the instances run on.
deploymentId	Filter by the deployment the id belongs to.
superProcessInstance	Restrict query to all process instances that are sub process instances of the given process instance. Takes a process instance id.
subProcessInstance	Restrict query to all process instances that have the given process instance as a sub process instance. Takes a process instance id.
superCaseInstance	Restrict query to all process instances that are sub process instances of the given case instance. Takes a case instance id.
subCaseInstance	Restrict query to all process instances that have the given case instance as a sub case instance. Takes a case instance id.
active	Only include active process instances. Value may only be `true`, as `false` is the default behavior.
suspended	Only include suspended process instances. Value may only be `true`, as `false` is the default behavior.
incidentId	Filter by the incident id.
incidentType	Filter by the incident type. See the User Guide for a list of incident types.
incidentMessage	Filter by the incident message. Exact match.
incidentMessageLike	Filter by the incident message that the parameter is a substring of.
tenantIdIn	Filter by a list of tenant ids. A process instance must have one of the given tenant ids. Must be a JSON array of Strings.
withoutTenantId	Only include process instances which belong to no tenant. Value may only be `true`, as `false` is the default behavior.
activityIdIn	Filter by a list of activity ids. A process instance must currently wait in a leaf activity with one of the given activity ids.
rootProcessInstances	Restrict the query to all process instances that are top level process instances.
variables	A JSON array to only include process instances that have variables with certain values. The array consists of objects with the three properties `key`, `operator` and `value`. `key (String)` is the variable name, `operator (String)` is the comparison operator to be used and `value` the variable value. `value` may be `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`.

Result

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

Name	Value	Description
count	Number	The number of matching process instances.

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

POST /process-instance/count

Request Body:

{"variables":
    [{"name": "myVariable",
     "operator": "eq",
     "value": "camunda"
    },
    {"name": "mySecondVariable",
     "operator": "neq",
     "value": 124}],
"processDefinitionId":"aProcessDefinitionId"}

Response

{"count": 1}

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

Get List Count (POST)