javascript 如何在 node.js (express) 中全局设置内容类型
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How to set content type globally in node.js (express)
提问by Cristian Boariu
I might be wrong but I wasn't able to find this in any documentation. I am trying to set content type globally for any response and did it like:
我可能错了，但我无法在任何文档中找到它。我正在尝试为任何响应全局设置内容类型，并且这样做：
// Set content type GLOBALLY for any response.
app.use(function (req, res, next) {
res.contentType('application/json');
next();
});
before defining my routes.
在定义我的路线之前。
// Users REST methods.
app.post('/api/v1/login', auth.willAuthenticateLocal, users.login);
app.get('/api/v1/logout', auth.isAuthenticated, users.logout);
app.get('/api/v1/users/:username', auth.isAuthenticated, users.get);
For some reason this doesn't work. Do you know what I am doing wrong? Setting it in each method separately, works but I want it globally...
出于某种原因，这不起作用。你知道我做错了什么吗？分别在每种方法中设置它，工作，但我想要它全局......
回答by A.B
回答by Cristian Boariu
Found the issue: this setting has to be put BEFORE:
发现问题：此设置必须放在之前：
app.use(app.router)
so the final code is:
所以最终的代码是：
// Set content type GLOBALLY for any response.
app.use(function (req, res, next) {
res.contentType('application/json');
next();
});
// routes should be at the last
app.use(app.router)
