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Copy pathtest.js
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79 lines (69 loc) · 1.66 KB
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// 业务代码
const db = require('db').connect();
const mailer = require('mailer');
module.exports.saveUser = (event, context, callback) => {
const user = {
email: event.email,
created_at: Date.now()
}
db.saveUser(user, function (err) {
if (err) {
callback(err);
} else {
mailer.sendWelcomeEmail(event.email);
callback();
}
});
};
// 函数式
const db = require('db').connect();
const mailer = require('mailer');
const saveUser = (db, mailer) => {
return (email, callback) => {
const user = {
email,
created_at: Date.now()
}
db.saveUser(user, function (err) {
if (err) {
callback(err);
} else {
mailer.sendWelcomeEmail(email);
callback();
}
});
}
}
const saveUserCurry = save(db, mailer);
module.exports.saveUser = (event, context, callback) => {
saveUserCurry(event.email, callback)
};
// 面向对象
class Users {
constructor(db, mailer) {
this.db = db;
this.mailer = mailer;
}
save(email, callback) {
const user = {
email: email,
created_at: Date.now()
}
this.db.saveUser(user, function (err) {
if (err) {
callback(err);
} else {
this.mailer.sendWelcomeEmail(email);
callback();
}
});
}
}
module.exports = Users;
const db = require('db').connect();
const mailer = require('mailer');
const Users = require('users');
let users = new Users(db, mailer);
module.exports.saveUser = (event, context, callback) => {
users.save(event.email, callback);
};