You can trigger a Web API Loader job from any HTTP client like POSTMAN.
The following is a sample POST request to trigger a Web API loader job:
http://localhost/sdxserver/api/v2/SDA/SDVExecuteWebAPIJobDefinition
The following is an example of the request payload that can be used in the POST to trigger a Web API loader job:
{
ClassificationName : "<WebAPIReaderClassification>",
WorkflowToAttach: "HEX Web API Loader Workflow",
JobDescription: "Load Instruments using postman",
DataList: {"<dependent property value>" : "<dependent class definition>", "<dependent property value>" : "<dependent class definition>"},
EnvironmentVariables : {"SITENAME":"PID1", "PLANTNAME":"PLANTA" }
}