backend

How to run Google app engine endpoint methods from the backend

核能气质少年 提交于 2019-12-04 18:51:42
I have followed all the configuration steps for my WarmupServlet in my app engine project and I see it run at startup, but still I see my first endpoint call as a loading request which takes up to 25 seconds which is absolutely unacceptable. I need to be able to warm up each endpoint individually so that there will be no loading requests. (Apparently just setting up a warmp-up servlet is not enough.) So, my question is, how can I call a method in endpoints so that the endpoint is properly warmed up to serve from my WarmupServlet? I tried below with no success: MyEndpoint me = new MyEndpoint();

Android Backend Starter setFilter

谁说胖子不能爱 提交于 2019-12-04 15:52:47
I'm trying the new Android Mobile Backend. I did all the basic samples and now I want to set one or multiple filters. I tried only with one but the getCloudBackend().list returns a null list. I have in the entity that I filter the parameter with the value. And if I remove the line where I filter, the service returns a list with data. What I have to do if I want to filter by one parameter? and if I want to filter by the owner? and if I want to put more than one filter? This is my code: getCloudBackend().clearAllSubscription(); CloudQuery cq = new CloudQuery("MyEntity"); cq.setSort(CloudEntity

Formats for communicating between backend and Objective-C/Cocoa

不问归期 提交于 2019-12-04 13:48:31
问题 I'm developing an iPhone app that is connected to a backend server. It needs to communicate with it many times, through several requests. I'm sending HTTP messages, but I want to receive more complex responses that I can parse somehow. Supposedly, I can provide any type of format for responses from the server, so my question is: which one would be easier(maybe even faster) to use/parse for Objective-C/Cocoa, and transform in a dictionary of some kind? I know it's a bit subjective but I still

Set Base Image Programmatically

妖精的绣舞 提交于 2019-12-04 12:39:11
I've got this problem that I can't solve. Partly because I can't explain it with the right terms. I'm new to this so sorry for this clumsy question. Below you can see an overview of my goal. I am trying to sell Similar product in my magento for this i wrote some code that every thing is working fine.. But i have only one problem with images.. that is I am getting all images of current product but the base image is not selected, How can i set the very first image as base image Programmatically. Any ideas ? Hello You can do as follows : $image =$imagePath."image.png"; $product->setMediaGallery

Add custom bulk actions to admin orders list in Woocommerce 3

我的梦境 提交于 2019-12-04 11:47:00
In Woocommerce backend (admin) , I have a function that allows the shop-manager to download all orders between two dates with a specific bunch of required data: function write_to_file($date_initial, $date_final) { global $attach_download_dir, $attach_download_file; // Opens/creates file $myfile = fopen($attach_download_dir . '/' . $attach_download_file, "w") or die("Unable to open file!"); // Populates first line fwrite($myfile, 'Date; Parent Order ID; Order ID' . PHP_EOL); // Retrieves orders data if ( isset($date_initial) && isset($date_final) ) $args = array( 'date_created' => $date_initial

Designing Javascript frontend <-> C++ backend communication

情到浓时终转凉″ 提交于 2019-12-04 10:12:37
In my nearest future I will have to make a system with C++ backend and web frontend (requirements). At the moment, I don't know much more about it. I think that Frontend will be triggering data delivery, not backend - so no need for Comet-like things. Because of possibly little experience in this field, I'd really appreciate your comments about design decisions I made. First of all, I don't like the option of generating HTML from C++. So, C++ backend will have to communicate with Javascript frontend. Simplest option I see here is Ajax. I think it should be ok, so far. Commucating through Ajax

How do multiple servers work in sync for web application?

独自空忆成欢 提交于 2019-12-04 07:53:43
问题 My first question is, I often read about people using multiple dedicated servers to run their websites, and process queries from users. But how do they exactly do this? I mean, when I enter a domain name, a DNS resolves maps that to an IP address, but I am lost after that.. is there some kind of master/slave architecture there to load balance incoming requests amongst the (potentially) hundreds of servers? If that's the case, how do the various servers, share data (database for e.g.)? Will

Add checkbox to product type option in Woocommerce backend product edit pages

我怕爱的太早我们不能终老 提交于 2019-12-04 07:51:45
I have added a custom option checkbox in Woocommerce admin product data settings. If I enable that checkbox and save the changes, the value is correctly saved in product meta data, but the checkbox never stay checked . What I am doing wrong? How to get this working as other option checkboxes? My code: function add_e_visa_product_option( $product_type_options ) { $product_type_options[''] = array( 'id' => '_evisa', 'wrapper_class' => 'show_if_simple show_if_variable', 'label' => __( 'eVisa', 'woocommerce' ), 'description' => __( '', 'woocommerce' ), 'default' => 'no' ); return $product_type

Securing Express API

拜拜、爱过 提交于 2019-12-04 06:28:51
问题 I'm writing a web app with a separate frontend and backend. The frontend is written in React, and the backend is a node.js server running an Express endpoint. How do I ensure that only my frontend can access the API, and not anyone else? My API URL is exposed in my frontend client side code, so anyone can see that. I added JWT authentication to my API, but I still need to have an unprotected /login endpoint in order to generate the JWT token, and in order to login to generate the token, I

why do we need backbone js or any JS MVC framework?

流过昼夜 提交于 2019-12-04 06:19:05
Why do we need to use a JS MVC framework(backbone) if we are already using a backend MVC framework(e.g Django or ROR). I can't understand the concept of two MVC frameworks and how they fit together. I thought all front-end related files or logic(html, css, js) come under the views component of the back-end framework. Can someone explain this in simpler terms? Backbone lies in the client [browser], in order to have fast interaction and experience. This way you can take advantage of real-time communication via websockets , or LocalStorage for example. Using a client MVC [MVVM better, in Backbone