Sets a variable in the context of a given execution by id. Update does not propagate upwards in the execution hierarchy.

Method

PUT /execution/{id}/localVariables/{varName}

Parameters

Path Parameters

Name	Description
id	The id of the execution to set the variable for.
varName	The name of the variable to set.

Request Body

A JSON object with the following properties:

Name	Description
value	The variable's value. For variables of type `Object`, the serialized value has to be submitted as a String value.

For variables of type File the value has to be submitted as Base64 encoded string.

|type|The value type of the variable.
|valueInfo| A JSON object containing additional, value-type-dependent properties.
For serialized variables of type Object, the following properties can be provided:

objectTypeName: A string representation of the object's type name.
serializationDataFormat: The serialization format used to store the variable.
For serialized variables of type File, the following properties can be provided:
filename: The name of the file. This is not the variable name but the name that will be used when downloading the file again.
mimetype: The MIME type of the file that is being uploaded.
encoding: The encoding of the file that is being uploaded.
The following property can be provided for all value types:
transient: Indicates whether the variable should be transient or not. See documentation for more informations.

Result

This method returns no content.

Response Codes

Code	Media type	Description
204		Request successful.
400	application/json	The variable value or type is invalid, for example if the value could not be parsed to an Integer value or the passed variable type is not supported. See the Introduction for the error response format.

Example 1

Request

PUT /execution/anExecutionId/localVariables/aVarName

{"value" : "someValue", "type": "String"}

Response

Status 204. No content.

Example 2

Request

PUT /execution/anExecutionId/localVariables/aVarName

{
  "value" : "ab",
  "type" : "Object",
  "valueInfo" : {
    "objectTypeName": "com.example.MyObject",
    "serializationDataFormat": "application/xml"
  }
}

Response

Status 204. No content.

原文: https://docs.camunda.org/manual/7.9/reference/rest/execution/local-variables/put-local-variable/