@glue42/bbg-market-data/dist/es2015/requests/mkt-data-subscription/helpers.js

A high-level API that wraps existing Glue42 Bloomberg Bridge Market Data interop methods. The API is based on the jBloomberg open source wrapper.

import { isEmpty, isNullOrUndefined, nameOf as nameOfFactory, isNumber, isEmptyArray } from "../../utils";
export function validateSubscription(subscription) {
    if (isNullOrUndefined(subscription)) {
        throw new TypeError("subscription must be a non nullable value");
    }
    const nameOf = nameOfFactory(subscription);
    if (isEmpty(subscription.security)) {
        throw new TypeError(`subscription property ${nameOf("security")} is required to be a non empty string.`);
    }
    if (isEmptyArray(subscription.fields)) {
        throw new TypeError(`subscription property ${nameOf("fields")} is required to be a non empty array.`);
    }
    const intervalNegative = isNumber(subscription.intervalInSeconds) && subscription.intervalInSeconds < 0;
    if (intervalNegative) {
        throw new Error(`subscription property ${nameOf("intervalInSeconds")} must be a positive number.`);
    }
}