Callable Functions

Define server functions that clients can invoke remotely using addCallable. Clients call them via callableFunction(name, data):

addCallable("getUsersCount", async function (data, admin, sessionId) {
  //get all users
  var res = get(["users"])
  //Count how many users
  count = Object.keys(res.data).length
  //return number
  return count
});

Callback Arguments

Your callable receives (data, admin, sessionId):

• data - Payload sent by the client (second argument to callableFunction())
• admin - The standard auth context object — see Auth Context for the full shape
• sessionId - The caller's WebSocket session ID

Return Value

Callables may return synchronously or as a Promise (use async). The return value is delivered to the client as response.data.