lark
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A node.js framework based on koa. Our goal is to build the best industrial node.js framework for high concurrency and high flow application.
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<a href="../index.html">All files</a> / <a href="index.html">middlewares</a> logger.js
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/**
* Middleware to print logs
**/
'use strict';
const assert = require('assert');
const bytes = require('bytes');
const LarkLog = require('lark-log');
module.exports = (app) => {
assert(app.config.has('log'), 'No log config found!');
const config = app.config.get('log');
const logger = new LarkLog(config);
app.logger = logger;
if (app.config.has('autoloader') && global.$) {
global.$.logger = logger;
}
return async (ctx, next) => {
const now = Date.now();
ctx.logger = logger;
ctx.log = logger;
let error = null;
try {
await next();
}
catch (e) {
logger.error(e.stack);
error = e;
throw e;
}
finally {
const message = {
method: ctx.method.toUpperCase(),
url: ctx.url,
header: ctx.headers,
ip: ctx.ip,
ips: ctx.ips,
cost: `${Date.now() - now}ms`,
status: ctx.status,
length: bytes(Buffer.byteLength(JSON.stringify(ctx.body || ''), 'utf-8')),
};
if (error instanceof Error) {
message.error = error.message;
}
logger.access(JSON.stringify(message));
}
};
};
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Code coverage
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