ODataService Ajax request interceptor

[buchatsky]

jinqu-odata version

1.1.3

Proposed behavior

ODataService Ajax request interceptor (e.g. for adding Authorization http header) as an option in ODataService initialization
Implementation:

export interface IAjaxInterceptor {
    intercept(options: AjaxOptions): AjaxOptions;
}
export interface IODataServiceOptions<TResponse> {
    ...
    ajaxInterceptor?: IAjaxInterceptor;
}
...
if (this.options.ajaxInterceptor) {
  o = this.options.ajaxInterceptor.intercept(o);
}

return this.options.ajaxProvider.ajax(o)
...

Usage:

const svc = new ODataService({
    ajaxProvider: provider,
    ajaxInterceptor: {
        intercept: (options) => {
            //options.headers = Object.assign({}, options.headers, { Authorization: "67890" } ); // copying is bad
            if (!options.headers) options.headers = {};
            options.headers['Authorization'] = "67890";
            return options;
        }
    }
});

Actual behavior

There is no single point of interception for such task. The options currently available:

• adding .withOptions() to every dataset property/method in ODataService subclass
• using Web framework mechanisms (e.g. HttpInterceptor for Angular)

PS. Already done in my repository