For package installation in the Proxy environment, it is necessary to designate the proxy server by environment variables and so on. Similarly for Gem and Bundler, setting of environment variables http_proxy is required. During constructio…

I created a DNS name confirmation confirmation tool in Express + Node.js for API cooperation between servers. Since name resolution is performed on Node.js on the server, it is possible to check in the same environment as the actual applic…

I sometimes want to check whether the published server is accessible from other server, and created a simple program with Express + Node.js. By doing this, you can check that you can not do it by itself, such as access confirmation to the …

As introduced in this article, the sync-request module can perform HTTP communication by synchronous processing. This makes simple code without callback processing by asynchronous processing peculiar to javascript. However, on the sync-req…

When using widely used version management tool Git on Windows, use Git for Windows (Git Bash). When handling Japanese files, describe the correspondence between garbled characters that are displayed as \xx (backslash, \mark number). Instal…

(This article is the information as of 20/11/23 20:00 (+0900 JST) (Add the vmstat) On 2016/11/23 23:00(+0900 JST) Cloud9 works correctly maybe the issue was fixed. Cloud 9 of the cloud IDE introduced in this article. Resolve the problem th…

Testing of POST with sync-request which can execute HTTP GET by synchronous processing. In this article, since it is asynchronous with the requst module of Node.js (JavaScript), I introduced the srnc-request module which can synchronize wi…

Node.js (JavaScript) is often used to handle JSON data, such as obtaining information from the API. JSON is a structured data format, and it can also be a hierarchical structure (nested structure). I will introduce the procedure for acquir…

Node.js is a JavaScript that runs without a web browser and can be used on the server side. You can develop services using Web application framework such as Express. You can also automate testing by combining with test frameworks such as S…

Popular cloud IDE (Integrated Development Environment) Cloud9. Connect to the Internet, it can be easily accessed from anywhere if there is a Web browser. In addition, environmental construction, such as the general IDE is not required, ar…