This project provides a complete solution for converting HL7 messages between plain/text HTTP payloads, flat files, and TCP connections. It includes validation of HL7 messages and generation of appropriate ACK messages. The solution is implemented with a simple HTTP server and TCP server.

• Convert HL7 messages from HTTP plain/text to flat files.
• Convert HL7 messages from flat files to HTTP plain/text.
• Validate HL7 messages.
• Generate ACK messages based on the validation results.
• HTTP server with endpoints for conversions and forwarding messages to TCP server.
• TCP server for handling HL7 messages from HTTP server and remote TCP hosts.
• Bi-directional communication between HTTP and TCP servers.

• Python 3.7 or higher
• The requests library for HTTP client functionality

1. Clone the repository:

   git clone <repository_url>
   cd <repository_directory>

2. Install the required Python packages:

   pip install -r requirements.txt

To start the HTTP server, run the following command:

python server.py

### Running the TCP server

To Start the TCP server, run the following command:

```sh
python tcp_server.py

### Notes
I added a terminal in my local machine listening on port 8082 to receive messages sent by postman like this in the body as raw text:

MSH|^~\&|HIS|RIH|ADT|RIH|20230523102000||ADT^A31|123456|P|2.4 EVN|A31|20230523102000 PID|1||12345678^^^RIH^MR||Doe^John^A||19800101|M|||456 Elm St^^Newtown^CA^90211^USA||555-5678|||||M|N|123-45-6789 PV1|1|O|^^^RIH||||1234^Smith^John^A|||||||||||||||12345678

To this address::
http://localhost:8080/hl7_http

The program converts the message to flat file and sends to the TCP IP port.

The tcp_client.py will send a flat file HL7 to the TCP server which sends it on the HTTP server which passes it to beeceptor as a mock endpoint /hl7