Stringify BigInts

[ntr-808]

> const log = require('bunyan').createLogger({ name: "bigints" });
undefined
> log.info({ bignumber: 11111n }, 'here is a bigint');
Uncaught TypeError: Do not know how to serialize a BigInt
    at JSON.stringify (<anonymous>)
    at module.exports (/home/ntr/synth/synth-library/api-ts/node_modules/safe-json-stringify/index.js:66:14)
    at fastAndSafeJsonStringify (/home/ntr/synth/synth-library/api-ts/node_modules/bunyan/lib/bunyan.js:1220:24)
    at Logger._emit (/home/ntr/synth/synth-library/api-ts/node_modules/bunyan/lib/bunyan.js:911:15)
    at Logger.info (/home/ntr/synth/synth-library/api-ts/node_modules/bunyan/lib/bunyan.js:1045:24)
> 

I have submitted a PR to match so this issue will be fixable simply by a version upgrade.
debitoor/safe-json-stringify#12

[danielemery]

Just noting we are running into the same issue. Doesn't look like the PR is getting much (any) attention.

Does anyone have a good work around in the meantime? Is it possible to add a serializer to bunyan that can target BigInts without having to define every key that might contain a BigInt?

[amccarthy1]

I took a stab at fixing this using the second arg to JSON.stringify rather than an upstream change to safeJsonStringify, this has the added benefit of being able to natively work with JSON.stringify which might be a bit faster.

@trentm I know this is an old issue and it's been a while, but I was hoping you could take a look at this PR (which has unit tests and follows the contributor guidelines). This is a pretty impactful fix, since the bug results in the default serializer throwing an error. I'd really appreciate it! I can work around by patching my own version of this, but I would love for others doing similar things to get the benefit too.