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index.js
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index.js
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const Koa = require('koa');
const app = new Koa();
const views = require('koa-views');
const json = require('koa-json');
const onerror = require('koa-onerror');
const bodyparser = require('koa-bodyparser');
// const logger = require('koa-logger')
const logUtil = require('./utils/log_util');
const mongoose = require('mongoose');
const config = require('./config');
const index = require('./routes/index');
const users = require('./routes/users');
const api = require('./routes/api');
// 连接 mongodb
mongoose.connect(
config.dbs,
{ useNewUrlParser: true, useUnifiedTopology: true },
function () {
console.log('connection is success');
}
);
// error handler
onerror(app);
// middlewares
app.use(
bodyparser({
enableTypes: ['json', 'form', 'text'],
})
);
app.use(json());
app.use(require('koa-static')(__dirname + '/public'));
app.use(
views(__dirname + '/views', {
extension: 'pug',
})
);
// logger
app.use(async (ctx, next) => {
const start = new Date();
let ms = null;
try {
await next();
ms = new Date() - start;
logUtil.logResponse(ctx, ms);
} catch (error) {
ms = new Date() - start;
logUtil.logError(ctx, error, ms);
}
});
// routes
app.use(index.routes(), index.allowedMethods());
app.use(users.routes(), users.allowedMethods());
app.use(api.routes(), api.allowedMethods());
// error-handling
app.on('error', (err, ctx) => {
console.error('server error', err, ctx);
});
module.exports = app;