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Is json recommended for config file?
There are several reasons why JSON is used for configuration files. And that’s not to mention all the existing tooling for JSON, including syntax highlighting, auto-formatting, validation tools, etc. These are actually all pretty good reasons. It’s too bad that this ubiquitous format is so ill-suited for configuration.
What is app config json?
app.json is your go-to place for configuring parts of your app that don’t belong in code. It is located at the root of your project next to your package.json . It looks something like this: { “expo”: { “name”: “My app”, “slug”: “my-app” } } Most configuration from app.
What does a config json file do?
json is the main configuration file. Data from config. json is used to configure virtual machine. After editing file make sure that your JSON syntax is valid.
What is the difference between node JS and json?
js is a JavaScript runtime built on Chrome’s V8 JavaScript engine. js as backend, the developer can maintain a single codebase for an entire application in javaScript. JSON on the other hand, stands for JavaScript Object Notation.
Do you have to use different JSON config files?
No problem. As I said, JSON is a data format, so it can’t be dynamic. If you want different versions of your JSON config, you have to use different files that may differ only slightly. Enter JavaScript. When a tool requires a JavaScript configuration file, the code is evaluated.
Where to find config.json in Node.js?
First, let’s create config.json in root/config folder like below. The idea is development is the default environment and contains all config variables. You only repeat config variables in other environments if you want to override the default config variable values found in the default development environment.
How to store Node.js deployment settings / configuration files?
Like nconf, it supports loading settings from any combination of environment variables, arguments, files, and json objects. You can use Konfig for environment specific config files. It loads json or yaml config files automatically, it has default value and dynamic configuration features. An example from Konfig repo:
Which is better a JS file or a JSON file?
You should accept both. In this case the JS file exports a plain JS object, similar to what you would have had as a result of a parsed JSON file. JSON is more socially accepted, because JS isn’t often thought as a configuration format.