I am currently using winston 3.0 in combination with the @types/winston types. Unfortunately, it seems that these types are not completely compatible, leading to an error in the types that I am unsure how to rectify.
Below is the code snippet in question:
logger.ts
export function middleware(): express.Handler {
const transport = new winston.transports.Console({
json: true,
colorize: true,
stringify: getStringify()
});
const loggerOptions: expressWinston.LoggerOptionsWithTransports = {
transports: [transport],
meta: true,
msg: "HTTP {{req.method}} {{req.url}}",
expressFormat: true,
colorize: false
};
return expressWinston.logger(loggerOptions);
}
The TypeScript error I am encountering with loggerOptions is as follows:
Property 'writable' is missing in type 'TransportInstance'
By extending the TransportInstance interface in @types/winston with NodeJS.WriteStream, the issue can be resolved. However, this presents a challenge as it involves modifying a 3rd party dependency within the node_modules folder. So, how can I redefine an interface that I have imported as an npm dependency?
I have delved into Declaration Merging as a potential solution:
logger.d.ts
import * as winston from "winston";
export namespace winston {
export interface TransportInstance
extends winston.TransportInstance,
NodeJS.WriteStream {}
}
However, this does not seem to have the desired effect. I am uncertain how to import this modified interface into logger.js instead of the default one that is brought in when importing the winston library.
Any insights or advice on this matter would be greatly appreciated.