来自JSON的YAML文件

Question

I am trying to create a yaml file from a json file that will be used for cuttle rate limiting and will look something like this ( https://github.com/mrkschan/cuttle/blob/master/cuttle.yml ). This is the code that I have to convert the json file. (node-yaml: https://www.npmjs.com/package/node-yaml )

const yaml = require('node-yaml');
const test = require('./test.json');

let converted = yaml.dump(test);
console.log(converted);

Here is the test.json file.

{
"zones": 
    [ 
        { 
            "host": "*", 
            "shared": true, 
            "control": "rps", 
            "rate": 2 
        }, 
        { 
            "host": "github.com", 
            "shared": false, 
            "control": "rpm", 
            "rate": 10
        }
    ] 
}

The output that I get is this.

zones:
  - host: '*'
    shared: true
    control: rps
    rate: 2
  - host: github.com
    shared: false
    control: rpm
    rate: 10

It's super close to what I want to output except for the fact that github.com is not "github.com". If anyone knows how to fix this, please let me know!

Answer 1

From yaml_format : Strings in YAML can be wrapped both in single and double quotes. In some cases, they can also be unquoted .

So github.com string value in yaml output is correctly unquoted, and * string value in yaml output is correctly quoted.

If you expect formally correct yaml format you are done.
If you expect some different format you should formally define it.

Answer 2

In YAML github.com doesn't need quotes. With or without it, it represents the same scalar value.

But since YAML is a superset of JSON your test.json file already is perfectly fine YAML, and there is absolutely no need to parse it (using a JSON or YAML library) and then dump to YAML. The only thing your program needs to do is copy (or rename) test.json to test.yaml and you are done.

As a side note: Your link points to a cuttle.yml , there is no explanation what restrictions they have to use a .yml extension. The recommended extension for YAML files, as posted on the official FAQ on yaml.org , has been .yaml since Sep. 2006.