This code shows you how to run an ISO8583 server using Typescript.

The way this server works is it opens a socket port that listens for incoming ISO8583 messages. If you're going to deploy this, make sure to run this as a server (VM) or a container.

Must have Typescript and ts-node installed

Run iso8583_server.ts

Command: ts-node iso8583_server.ts

Expected Response:

ISO 8583 server started and listening on port 1234

At this point, the ISO8583 server is waiting for connections.

Run iso8583_sender.ts

Command: ts-node iso8583_sender.ts

Expected Response:

Connected to the server
Received message from server: ISO8583_RESPONSE
Connection closed

You can edit the response in the iso8583_server.ts

Run iso8583_parser.ts

Command: ts-node iso8583_parser.ts

Expected Response:

{
  "34": {
    "id": "34",
    "length": 56,
    "value": "78901234567890123456789"
  },
  "MTI": {
    "id": "MTI",
    "length": 4,
    "value": "ISO0"
  },
  "Primary Bitmap": {
    "id": "Primary Bitmap",
    "length": 16,
    "value": "150000500200B238"
  },
  "Secondary Bitmap 1.25": {
    "id": "Secondary Bitmap 1.25",
    "length": 16,
    "value": "800128A180180000"
  },
  "00": {
    "id": "00",
    "length": 1,
    "value": "2"
  }
}