UpdateRequestSettings

interface UpdateRequestSettings extends RequestSettings {
    /** When specified, if the etag of the record on the server doesn't match the etag passed by the client,
        * the server will abort the request. This can be used to ensure the request will not go through if
        * another use made changes to the record. */
    etag?: string;
}

RequestSettings

interface RequestSettings {
    /** If true, the request is executed asynchronously. Default: true */
    async?: boolean;
    /** If true and async is false, will return a promise that when resolved synchronously will call then/catch handlers synchronously instead of on the next tick. */
    useNonStandardSyncPromise?: boolean;
    /** Success callback for the request. (Use the Promise instead of asynchronous requests.) */
    success?(data: any): void;
    /** Failure callback for the request. (Use the Promise instead of asynchronous requests.) */
    fail?(error: Error): void;
    /** Callback for the request made in both the case of success and failure. (Use the Promise instead of asynchronous requests.) */
    always?(data: any, error: Error | null): void;
    /** Request timeout in milliseconds */
    timeout?: number;
    /** Add a tag that will be available to plugins via pluginContext.SharedVariables["tag"] */
    tag?: string;
    /** Whether to automatically wait/retry if [Service Protection Limits](https://docs.microsoft.com/en-us/power-apps/developer/data-platform/api-limits) are hit. 
     * This can be defaulted using the autoRetryServiceProtectionErrors setting passed into `Hsl.WebApi.getClient`. */
    autoRetryServiceProtectionErrors?: boolean;
    /** Callback made when a service protection error is hit. 
     * NOTE: this could be called multiple times for the same request. 
     * This setting only works when autoRetryServiceProtectionErrors is set to true. */
    onServiceProtectionError?: (this: undefined, ctx: OnServiceProtectionErrorContext) => void;
}

interface OnServiceProtectionErrorContext {
    error: WebApiError;
}