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Live Headers

Let's test our request line and headers parsing live with the tcplistener

Assignment

Again, we already did the hard parts!

Update your application to print the RequestLine and Headers to the console in this format:

Request line:
- Method: METHOD
- Target: TARGET
- Version: VERSION
Headers:
- KEY: VALUE
- KEY: VALUE
...

Run your tcplistener program again from the root of your project and redirect the output to a temporary file:
```
go run ./cmd/tcplistener | tee /tmp/headers.txt
```

In another shell, send this request to it:

curl http://localhost:42069/use-neovim-btw

Kill both programs. Your headers.txt file should contain the output of your tcplistener program.

Run and submit the CLI tests.