javascript 如何在 Koa.js 中为所有响应设置标头？
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时间：2020-10-29 08:40:36 来源:igfitidea点击:
How do I set headers to all responses in Koa.js?
提问by Gherman
In Express.js I used to have this kind of code:
在 Express.js 中，我曾经有过这样的代码：
app.use((req, res, next) => {
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
res.header('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE, OPTIONS');
next();
});
How do I do the same thing with Koa.js? I need to preset these several http headers for each server response.
我如何用 Koa.js 做同样的事情？我需要为每个服务器响应预设这几个 http 标头。
回答by Gherman
Finaly I found how to do it.
最后我找到了怎么做。
app.use(async (ctx, next) => {
ctx.set('Access-Control-Allow-Origin', '*');
ctx.set('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
ctx.set('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE, OPTIONS');
await next();
});
