node.js

问题 I am tring to get image from url and then to resize on fly without saving var request = require('request'); request .get('s3url') .on('response', function (response) { console.log(response) // 200 console.log(response.headers['content-type']) // 'image/png' }) .pipe(res) I can now return same picture with request lib but how can I manipulate it and then return as response? 回答1: There are several npm modules that do resizing one example is sharp. You can use it in this way (example taken from

问题 I am tring to get image from url and then to resize on fly without saving var request = require('request'); request .get('s3url') .on('response', function (response) { console.log(response) // 200 console.log(response.headers['content-type']) // 'image/png' }) .pipe(res) I can now return same picture with request lib but how can I manipulate it and then return as response? 回答1: There are several npm modules that do resizing one example is sharp. You can use it in this way (example taken from

问题 How to keep a node application running in windows even when user logs off? Also how to keep running a node http-server even after user log-off? 回答1: You have 2 great options. One is as mentioned in comments above Forever. The other is PM2 which is easy to install and offers an incredible amount of options. I use this in all projects, but I cannot attest to the Windows version as I am on Linux & Ubuntu servers and work on a Mac. You can daemonize your node process, follow logs, cluster it and

问题 I have submodules that install the same npm packages. Their node modules install same npm packages as other node modules in the repo. How can i consolidate all of the npm packages into one package.json file so that there are no duplicate packages installed? 回答1: @slebetman is correct. Libraries may share dependencies, but they will likely use different versions of each. Also, shameless plug to a very similar question I answered a while back where someone was essentially asking "Why not

问题 I have submodules that install the same npm packages. Their node modules install same npm packages as other node modules in the repo. How can i consolidate all of the npm packages into one package.json file so that there are no duplicate packages installed? 回答1: @slebetman is correct. Libraries may share dependencies, but they will likely use different versions of each. Also, shameless plug to a very similar question I answered a while back where someone was essentially asking "Why not

问题 I currently have an Heroku app that is being served over a CDN. I have just added Fastly to my Heroku app as an addon and I am struggling to configure it properly. Here is my current configuration: I have my domain registered on GoDaddy with the following CNAME configuration: Host: www Points to: my-site-herokuapp-com.global.ssl.fastly.net TTL: Custom Seconds: 600 Here is the GoDaddy forwarding configuration (not sure if this matters): Forward to https://www.my-site.io/ (301 & forward only)

问题 I'm trying to write a program that takes any number of command line arguments, in this case, strings and reverses them, then outputs them to the console. Here is what I have so far: let CL = process.argv.slice(2); let extract = CL[0]; function reverseString(commandInput) { var newString = ""; for (var i = commandInput.length - 1; i >= 0; i--) { newString += commandInput[i]; } return console.log(newString); } let call = reverseString(extract); I can't figure out a way to make this work for

问题 I've finished working on my first MERN app. It works locally and it was 'successfully built' on Heroku but all that is displayed is the backend-data retrieved for the '/' route from MongoDB. I've looked at a couple of resources that discuss deploying MERN stack apps to Heroku here: 1. https://www.freecodecamp.org/forum/t/solved-deployment-problem-showing-backend/280178 2. https://www.freecodecamp.org/news/how-to-deploy-a-react-app-with-an-express-server-on-heroku-32244fe5a250/ I've tried

问题 I have a SQL Server database in Azure that is accessed by a .NET app and by a NodeJS app . I just applied AlwaysEncrypted to a table column that contains sensitive information. I used Azure Key Vault to store the encryption key. I was wondering if it is possible to display the (decrypted) data in my NodeJS app? A workaround to this would be to expose the data that I want to query through an API endpoint in my .NET app, and then call that endpoint from my NodeJS app, but I'm looking for a more

问题 I am having Jet 0.6 as a backup and some Node.JS process with hazelcast-nodejs-client 0.8.0 installed. I am trying to push to map an object from Node process that is exactly a reflection of similar one on the Jet side. However I don't understand how to make sure on Jet's side this JS object will be serialized/deserialized respectively. I have a feeling I need to indicate to Jet that this JSON object is meant to be Data POJO and proper serialization/deserialization should be used. On the node