Calling API methods

Single API calls

Any API method can be called with low-level API call function:"action", "unit:tests/lamp1", { v: 1 })
// or"action", { i: "unit:tests/lamp1", v: 1 })

If first parameter is a string, it’s automatically set to “i” argument of API request.

Function call returns Promise object, on success = API call result, on error = an object with props:

  • code error code (equal to EVA ICS API client error codes)

  • message error message

  • data full server response

The above example can be also rewritten using high-level API:

await eva.action.start("unit:tests/lamp1");
// or
await eva.action.exec("unit:tests/lamp1", { v: 1 });

Bulk API calls

The engine can perform bulk JSON RPC API calls. The methods are always executed in the same order they are prepared.

let bulk = eva.bulk_request();
bulk.prepare("action.toggle", "unit:lights/l1", { w: 5 }).then((data) => {
  console.log("action l1 ok: ", data);
}).catch((err) => {
  console.log("action l1 error: ", err);
bulk.prepare("action.toggle", "unit:lights/l2", { w: 5 }).then((data) => {
  console.log("action l2 ok: ", data);
}).catch((err) => {
  console.log("action l2 error: ", err);
    () => { console.log("bulk call ok")}
    (err) => { console.log("bulk call error", err)}

Every prepared request in the bulk gets its own unique id. It is not recommended to execute call method on the same bulk more than once. Prepare a new bulk request instead.

Error codes

See Error codes.