在中间件回调中将循环结构转换为JSON

Question

我在中间件中遇到身份验证用户令牌问题它表示将循环结构转换为JSON将循环结构转换为JSON 在stringify（/app/node_modules/express/lib/response.js），如果授权成功，我将其重定向到我的回调网址，我的回调网址是这样的。 "https://www.myapp.com/callback"

这是中间件的代码

callback(s, f){

    router.get("/callback", (req, res, next) => {
        const code = req.query.code;
        const state = req.query.state;
        const friendship_status_changed = req.query.friendship_status_changed;
        if (!code){
            debug("Authorization failed.");
            return f(new Error("Authorization failed."));
        }
        if (req.session.line_login_state !== state){
            debug("Authorization failed. State does not match.");
            return f(new Error("Authorization failed. State does not match."));
        }
        debug("Authorization succeeded.");

        this.issue_access_token(code).then((token_response) => {
            if (this.verify_id_token && token_response.id_token){
                let decoded_id_token;
                try {
                    decoded_id_token = jwt.verify(
                        token_response.id_token,
                        this.channel_secret,
                        {
                            audience: this.channel_id,
                            issuer: "https://access.line.me",
                            algorithms: ["HS256"]
                        }
                    );
                    debug("id token verification succeeded.");
                    token_response.id_token = decoded_id_token;

                    console.log(token_response.id_token);
                } catch(exception) {
                    debug("id token verification failed.");
                    if (f) return f(req, res, next, new Error("Verification of id token failed."));
                    throw new Error("Verification of id token failed.");
                }
            }
            s(req, res, next, token_response);
        }).catch((error) => {
            debug(error);
            if (f) return f(req, res, next, error);
            throw error;
        });
    });
    return router;
}

在我的server.js中，这是我使用app.use

调用它的方式

app.use("/callback", login.callback((req, res, next, token_response) => {
    // Success callback
  res.json(token_response);
},(req, res, next, error) => {
    // Failure callback
    res.send(req);
  //res.status(400).json(error);

}));

这些是我的依赖关系和devdepencies

"dependencies": {
    "bluebird": "^3.5.1",
    "body-parser": "^1.18.2",
    "circular-json": "^0.5.1",
    "debug": "^3.1.0",
    "ejs": "^2.5.6",
    "express": "^4.15.2",
    "express-session": "^1.15.6",
    "jsonwebtoken": "^8.1.1",
    "line-login": "^1.0.8",
    "node-fetch": "^1.7.3",
    "nodemon": "^1.14.11",
    "serve-static": "^1.13.1"
  },
  "devDependencies": {
    "request": "^2.83.0",
    "tape": "^4.7.0"
  },