node.js

问题 I'm trying to read frpm a json file folder withing my program and i want to use a GET list endpoint to read through browser or postman, but i'm getting the above TypeError. Here is my code: model.js: const fs = require('fs'); function loadTeams() { return new Promise((resolve, reject) => { fs.readFile('./json/prov-nodes.json', (err, data) => { if (err) reject(err); const teams = JSON.parse(data); console.log(teams); resolve(teams); }); }); } app.use(bodyParser.json()); app.get('/list', (req,

问题 I'm coding a discord.js bot, and whenever I send a command, it gives a response twice. I've concluded it's because I have too many instances running. I try to delete the instances, but it doesn't delete. Sometimes it says "Some instances could not be deleted", and sometimes it doesn't delete at all. And through Terminal SERVICE VERSION ID VM_STATUS DEBUG_MODE default 20191208t223728 aef-default-20191208t223728-0l57 RUNNING default 20191208t223728 aef-default-20191208t223728-jb53 RUNNING

问题 In short: I want to use XMLHttpRequest in Gatsby, which works in development mode, but fails in production ( gatsby build ) mode, which I can't get fixed. Some more information: I want to access an API (to be precise the GitHub API). Therefore I make an HTTP request like that: const repoRequest = new XMLHttpRequest(); const repoUrl = "https://api.github.com/user/repos?visibility=all?type=all"; repoRequest.open("GET", repoUrl); repoRequest.setRequestHeader("Authorization", "token <here would

问题 I was using the api to try and get the data of my profile through the access token. I used the given code from the authorization example code given in the website, and I used let parsed = queryString.parse(window.location.search); let accessToken = parsed.access_token; console.log(parsed); console.log(accessToken); fetch('https://api.spotify.com/v1/me', { headers: {'Authorization': 'Bearer' + accessToken}, json: true }).then((res) => res.json()) .then(data => console.log(data)); } But the 400

问题 I was using the api to try and get the data of my profile through the access token. I used the given code from the authorization example code given in the website, and I used let parsed = queryString.parse(window.location.search); let accessToken = parsed.access_token; console.log(parsed); console.log(accessToken); fetch('https://api.spotify.com/v1/me', { headers: {'Authorization': 'Bearer' + accessToken}, json: true }).then((res) => res.json()) .then(data => console.log(data)); } But the 400

问题 I am trying to install the "opencv4nodejs" package on a MAC by running this command: CXXFLAGS=-std=gnu++11 npm i -g opencv4nodejs That gives me the following error: /usr/local/lib/node_modules/opencv4nodejs/node_modules/opencv-build/opencv/opencv/modules/highgui/src/window_cocoa.mm:269:25: error: non-constant-expression cannot be narrowed from type 'int' to 'CGFloat' (aka 'double') in initializer list [-Wc++11-narrowing] NSSize size = { width, height }; ^~~~~ /usr/local/lib/node_modules

问题 I am building a web app for posting announcements. The user get to use a rich text editor, meaning he can make letters bold, underline them and so one. I am then saving this text with the description "content" in my mongodb database as a string. Every post has a title and a content. When i am displaying the post instead of showing " this text is strong " it is showing "< strong>this text is strong< /strong>". (added a space in < strong> cause it would make it strong otherwise. you get what i

问题 In order to optimize the connection pool size, I thought it would make sense to graph query queue times. Is it possible to retrieve this metric from Mongoose? 回答1: See here for node monitoring. You need cmap events that apparently aren't documented there, see Ruby docs for example but they should be published by the node driver also. Track ConnectionCheckOutStarted and ConnectionCheckOutSucceeded and subtract the times to get the wait time. 来源： https://stackoverflow.com/questions/63652084

问题 In order to optimize the connection pool size, I thought it would make sense to graph query queue times. Is it possible to retrieve this metric from Mongoose? 回答1: See here for node monitoring. You need cmap events that apparently aren't documented there, see Ruby docs for example but they should be published by the node driver also. Track ConnectionCheckOutStarted and ConnectionCheckOutSucceeded and subtract the times to get the wait time. 来源： https://stackoverflow.com/questions/63652084

问题 When I have one views folder specified it will serve files, but when I specify a second alongside it does not work. I have tried numerous things, to no avail. Here is my code: app.use(express.static('views')); //app.set('views', [__dirname + '/views', __dirname + '/views/views2']); app.use("/views", express.static(__dirname + "/views")); app.use("/views2", express.static(__dirname + "/views2")); The app.set doesn't work at all and so I commented it out here, and the last two lines are not