I once worked on an EMV data preparation system, where I was required to carry out a load test on the system. To do this, I needed to test with lots of EMV cards.
But there was a problem.
Prior to now, developers and software testers tested with very few cards, just 1 to 10 cards. What I needed were lots of cards, about 1,000 to 10,000 cards, for this load test.
Download Kafka, a open-source software platform developed by LinkedIn to handle real-time data.
Run Command Line as Administrator.
Run command to start up zookeeper server.
Environment as at writing:
Build #IU-223.8214.52, built on December 20, 2022
Runtime version: 17.0.5+1-b653.23 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host localhost, port 1433 has failed. Error: “Connection refused: connect. Verify the connection properties, check that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port, and that no firewall is blocking TCP connections to the port.”.
The environments used as at writing:
| - Create GitHub accout and signin | |
| - Start a project = Create a git repo | |
| - Start Eclipse | |
| Don't have Eclipse? Install here: https://www.eclipse.org/downloads/ | |
| - On Eclipse, goto Perspective -> Git Repositories -> Add Git Repo | |
| Eclipse Shortcut Keys for Code Editing | |
| https://www.codejava.net/ides/eclipse/25-eclipse-shortcut-keys-for-code-editing |
| REACT SETUP | |
| - Create React workspace using Create React App CLI | |
| $ npx create-react-app my-app | |
| - Create React workspace in current directory | |
| $ npx create-react-app . | |
| - Go into workspace directory | |
| $ cd my-app |
| // Basic Types | |
| let id: number = 5 | |
| let company: string = 'Traversy Media' | |
| let isPublished: boolean = true | |
| let x: any = 'Hello' | |
| let ids: number[] = [1, 2, 3, 4, 5] | |
| let arr: any[] = [1, true, 'Hello'] | |
| // Tuple |