How to Use Middleware in Node.js: An Example with Question Adding

const {middleware} = require('../../middleware/middleware');\n\nconst add_question = async (question, options, iscorrect, accestoken) => {\n try {\n const finduser = await company.findOne({\n // attributes: ["fullName"],\n where: {\n accestoken: accestoken\n }\n });\n if (finduser) {\n const add_question = await questions.create({\n question_id: uuidv4(),\n question: question,\n options: options,\n iscorrect: iscorrect,\n created_at: new Date()\n })\n const responseData = responseHandler(\n true,\n { message: 'sucessfully question added' }\n\n );\n return {\n add_question,\n responseData\n\n }\n }\n else {\n const responseData = responseHandler(\n false,\n { message: 'please login' }\n\n );\n return {\n responseData\n }\n }\n } catch (error) {\n const responseData = responseHandler(\n false,\n { message: error.message }\n\n );\n return {\n responseData\n }\n }\n}\n\nTo use middleware in this code, you can add the middleware function before the add_question function as follows:\n\njavascript\nconst {middleware} = require('../../middleware/middleware');\n\nconst add_question = async (question, options, iscorrect, accestoken) => {\n try {\n // Your code here\n } catch (error) {\n // Your code here\n }\n}\n\n// Apply middleware\nconst middlewareFunction = middleware();\nconst addQuestionWithMiddleware = middlewareFunction(add_question);\n\nmodule.exports = {\n add_question: addQuestionWithMiddleware\n};\n\n\nIn this code, the middleware function is imported from '../../middleware/middleware'. Then, a new function named addQuestionWithMiddleware is created by applying the middleware function to the add_question function. This creates a new function that includes the middleware logic. Finally, the addQuestionWithMiddleware function is exported instead of the original add_question function.