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metamask-extension/app/scripts/lib/createLoggerMiddleware.js
2020-11-02 17:41:28 -06:00

26 lines
618 B
JavaScript

import log from 'loglevel'
/**
* Returns a middleware that logs RPC activity
* @param {{ origin: string }} opts - The middleware options
* @returns {Function}
*/
export default function createLoggerMiddleware(opts) {
return function loggerMiddleware(
/** @type {any} */ req,
/** @type {any} */ res,
/** @type {Function} */ next,
) {
next((/** @type {Function} */ cb) => {
if (res.error) {
log.error('Error in RPC response:\n', res)
}
if (req.isMetamaskInternal) {
return
}
log.info(`RPC (${opts.origin}):`, req, '->', res)
cb()
})
}
}