Node.js 如何在typescript express中设置cors()
在我的一个项目中,这很简单:Node.js 如何在typescript express中设置cors(),node.js,typescript,express,cors,Node.js,Typescript,Express,Cors,在我的一个项目中,这很简单: import cors from "cors"; server.use(cors()); 但目前我的新项目中有一条可爱的typescript警告信息: No overload matches this call. The last overload gave the following error. Argument of type '(req: Request<never, never, never, never>
import cors from "cors";
server.use(cors());
但目前我的新项目中有一条可爱的typescript警告信息:
No overload matches this call.
The last overload gave the following error.
Argument of type '(req: Request<never, never, never, never>, res: { statusCode?: number | undefined; setHeader(key: string, value: string): any; end(): any; }, next: (err?: any) => any) => void' is not assignable to parameter of type 'RequestHandlerParams<ParamsDictionary, any, any, ParsedQs>'.
Type '(req: Request<never, never, never, never>, res: { statusCode?: number | undefined; setHeader(key: string, value: string): any; end(): any; }, next: (err?: any) => any) => void' is not assignable to type 'RequestHandler<ParamsDictionary, any, any, ParsedQs>'.
Types of parameters 'req' and 'req' are incompatible.
Type 'Request<ParamsDictionary, any, any, ParsedQs>' is not assignable to type 'Request<never, never, never, never>'.
Type 'ParamsDictionary' is not assignable to type 'never'.ts(2769)
这次我又犯了一个可爱的错误:
没有与此调用匹配的重载。
上一次重载导致以下错误。
“Response | undefined”类型的参数不能分配给“RequestHandlerParams”类型的参数。
类型“undefined”不能分配给类型“RequestHandlerParams”我找到了这个解决方案:
使用:
。。。
“快车”:“^4.17.1”,
“@types/express”:“^4.17.9”,
...
将“.use(cors())”替换为
。使用((请求、响应、下一步)=>{
下一个()
},cors({maxAge:84600}))
资料来源:
import { NextFunction ,Request,Response} from 'express';
export const Cors=(req:Request, res:Response, next:NextFunction) => {
res.setHeader("Access-Control-Allow-Origin", "*");
res.setHeader(
"Access-Control-Allow-Methods",
"OPTIONS, GET, POST, PUT, PATCH, DELETE"
);
res.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");
if (req.method === "OPTIONS") {
return res.sendStatus(200);
}
next();
};
server.use(Cors());