Category Archives: Not for home page

Error: EPERM: operation not permitted, rename

Error: EPERM: operation not permitted, rename ‘C:\Users\MY_USERNAME\.config\configstore\update-notifier-nodemon.json.3604946166’ -> ‘C:\Users\MY_USERNAME\.config\configstore\update-notifier-nodemon.json’ In case of this error rename the C:\Users\MY_USERNAME\.config\configstore\update-notifier-nodemon.json to update-notifier-nodemon.json.ORIGINAL to allow NPM to use the file name as the target of a rename operation.

Test Socket.IO connectivity

To test the connectivity to the Express Socket.IO server use the following command from a terminal window npx: installed 11 in 4.89s0{“sid”:”vOQHhey-0EYPaAvVAAAA”,”upgrades”:[],”pingInterval”:25000,”pingTimeout”:5000}40 If the return value is 40, in the next 30 seconds the server is listening for new events (pingInterval ms + pingTimeout ms). You can send one with the command42[“EVENT_NAME”, “ATTRIBUTE1”, “ATTRIBUTE2”]

Blue-green deployment in AWS ECS Fargate with CodeDeploy

We will use CodeDeploy to automate the application deployment in our AWS ECS Fargate cluster. Create an AIM role for CodeDeploy to assume the ECS service role In the AWS console navigate IAM and click the Roles link Click the Create role button Click the CodeDeploy link Select CodeDeploy ECS Keep the default setting Enter […]

Host the server container in an AWS ECS Fargate cluster

We have already created a Docker image for the server using Nginx. We will create an AWS ECS Fargate cluster in AWS and host the container there. Create an ECR repository for the image Select the Elastic Container Registry Create a new repository Enter a name, enable Tag immutability and Scan on push Select the repository you just […]

Deploy a new version of a task in an ECS Fargate cluster

To deploy the new version of a Docker container image and launch new tasks with the new version Build and push the new Docker image Build the new Docker container image Push the new image to ECR (Elastic Container Registry) Create a new revision of the ECS Task Definition Open the ECS section of the […]

Phaser 3 game sprites are not displayed on iOS, iPad and iPhone

If the Phaser 3 game sprites are not displayed on iOS change the type in the index.js file to type: Phaser.CANVAS In CANVAS mode Phaser cannot set the background color with this.cameras.main.backgroundColor or this.backgroundColor. Set the background color too in the index.js file as seen above.

has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource

When your website calls the Socket.IO backend API from another domain, the browser console displays the error message Access to XMLHttpRequest at ‘http://…:3000/socket.io/?EIO=3&transport=polling&t=N7Y-Fot’ from origin ‘http://….com’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. To enable Cross-origin resource sharing add the code to the top of your Socket.IO […]