Overrides console.log and console.error so that a single JSON string is written to stdout or stderr, respectively. Handles Error objects and circular references.
npm install jsonify-console``
$ yarn add jsonify-console
`
require('jsonify-console');
// Use console.log and console.error as normal, including Error objects.
`
`
const o = { b: true, s: 'string', i: 10, f: 56.65, a: ['a', 'b', 'c'], o: { o2: 'object 2' } };
o.circ = o;
console.log('JSON error logging enabled', o);
...logs this string:
`
[
"JSON error logging enabled",
{
"b": true,
"s": "string",
"i": 10,
"f": 56.65,
"a": [
"a",
"b",
"c"
],
"o": {
"o2": "object 2"
},
"circ": "[Circular]"
}
]
`
const e = new Error('Some error');
e.code = 500;
e.data = {
model: { stuff: 'bad news' },
};
console.error('There was a problem.', e);
`
...logs this string:
`
[
"There was a problem.",
{
"stack": [
"Error: Some error",
" at Object.
" at Module._compile (module.js:624:30)",
" at Object.Module._extensions..js (module.js:635:10)",
" at Module.load (module.js:545:32)",
" at tryModuleLoad (module.js:508:12)",
" at Function.Module._load (module.js:500:3)",
" at Function.Module.runMain (module.js:665:10)",
" at startup (bootstrap_node.js:201:16)",
" at bootstrap_node.js:626:3"
],
"message": "Some error",
"code": 500,
"data": {
"model": {
"stuff": "bad news"
}
}
}
]