koa-log-writer

Writing and printing middleware for koa.

Install

npm install koa-log-writer

Example

const koa = require('koa');
const app = new koa();
const wlog = require('koa-log-writer');

app.use(wlog());

app.use(async (ctx, next) => {
  ctx.log.write({
    filename: 'query',
    content: `${JSON.stringify(ctx.request)}\n`
  });
  await next();
});

app.use(async (ctx, next) => {
  ctx.log.write({
    filename: 'api',
    content: `${JSON.stringify(ctx.request)}\n`
  });
  await next();
});

app.use(async (ctx, next) => {
  if (ctx.request.url === '/' && ctx.request.method == 'GET') {
    ctx.response.body = 'ok';
  } else if (ctx.request.url === '/abc' && ctx.request.method == 'GET') {
    ctx.response.body = 'abc';
  } else {
    ctx.response.body = 'others';
  }
  await next();
});

app.listen(8080, () => {
  console.log('127.0.0.1:8080');
});

Config

app.use(wlog({
  print:true,		//Output or not, default true
  logPath:'./log',	//log path, default './log'
  logSize:51200,	//log file size, default 51200
  extension:'txt'	//file extension, default log
}));

Output

  <-- GET 127.0.0.1:8080/ 0b
  --> GET 127.0.0.1:8080/ 200 9ms 4b
  <-- GET 127.0.0.1:8080/favicon.ico 0b
  --> GET 127.0.0.1:8080/favicon.ico 200 3ms 12b