undefined in a HTTP POST body about routing-controllers HOT 8 CLOSED

I tried, it's the same. And the normal html form doesn't json, it's not work too.
Besides, the request body is always undefined, how can I use middleware to deal with?

if you are working with json, you should always specify json content headers. btw are you using @JsonController or @Controller. Because if you are working NOT WITH JSON (forms are not working with json) you should use @Controller, not @JsonController.

export const app: Express.Application = createExpressServer({
controllerDirs: [__dirname + "/controller//*.controller.js"],
middlewareDirs: [__dirname + "/middleware//.middleware.js"],
interceptorDirs: [dirname + "/interceptor//.interceptor.js"]
});
app.use(json());
app.use(urlencoded({extended: true}));

You are doing it wrong. createExpressServer creates and bootstraps express server. You probably should do you logic before it bootstrap the app. To do that you need to create your own express server and use useExpressServer instead. Something like this:

const app = express();
app.use(json());
app.use(urlencoded({extended: true}));
useExpressServer(app, {
    controllerDirs: [__dirname + "/controller/**/*.controller.js"],
    middlewareDirs: [__dirname + "/middleware/**/*.middleware.js"],
    interceptorDirs: [__dirname + "/interceptor/**/*.interceptor.js"]
});

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but I still have a question

when I use json params to post, how can I do pre-process in a middleware.
at the beginning, the json params successfully inject into the method params, but I can't get it from req.body

and I response json, but get any kind of params by middlewares translating into json to handle. which decorator shall I use, @Controller or @JsonController ?
Now I use @JsonController and body-parser. Is this right?

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full sample is here https://github.com/Diluka/leancloud-demo/tree/demo-post-body-is-empty

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did you set a Content-type: application/json in your request?

from routing-controllers.

I tried, it's the same. And the normal html form doesn't json, it's not work too.
Besides, the request body is always undefined, how can I use middleware to deal with?

from routing-controllers.

I solve this problem, but I consider it's maybe a bug.

this is not work:

export const app: Express.Application = createExpressServer({
    controllerDirs: [__dirname + "/controller/**/*.controller.js"],
    middlewareDirs: [__dirname + "/middleware/**/*.middleware.js"],
    interceptorDirs: [__dirname + "/interceptor/**/*.interceptor.js"]
});

app.use(json());
app.use(urlencoded({extended: true}));

this is work:

import {json, urlencoded} from "body-parser";
import {MiddlewareInterface, MiddlewareGlobalBefore} from "routing-controllers";

@MiddlewareGlobalBefore({priority: 2})
export class JsonBodyParserMiddleware implements MiddlewareInterface {
    use(request: any, response: any, next?: (err?: any) => any): any {
        return json()(request, response, next);
    }
}

@MiddlewareGlobalBefore({priority: 3})
export class UrlencodedBodyParserMiddleware implements MiddlewareInterface {
    use(request: any, response: any, next?: (err?: any) => any): any {
        return urlencoded({extended: true})(request, response, next);
    }
}

And the readme tells me to install body-parser, but it seems I shall use it by hard code

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thx, I get it.
I will use useExpressServer instead

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