A minimal clone of cURL
To build the program, use the following command:
go build src/main.go
To run the program, use the following syntax:
./main [options] <URL>
# Generate a private key
openssl genpkey -algorithm RSA -out client-key.pem
# Generate a certificate signing request (CSR)
openssl req -new -key client-key.pem -out client-req.pem
# Generate a self-signed certificate
openssl x509 -req -days 365 -in client-req.pem -signkey client-key.pem -out client-cert.pem
# Combine key and certificate into a single file
cat client-key.pem client-cert.pem > client.pem
-a<string>: Specify the User-Agent string
./main -a "MyCustomUserAgent/1.0" http://example.com
-k<bool>: Allow insecure server connections when using SSL
./main -k https://self-signed.badssl.com/
-v<bool>: Make the request more detailed
./main -v http://example.com
-m<int>: Maximum time allowed for the operation in seconds
./main -m 10 http://example.com
-u<string>: Specify the user name and password for server authentication
./main -u "username:password" http://example.com/protected
-d<string>: HTTP POST data
./main -d "name=JohnDoe&age=30" http://example.com/form-submit
-o<string>: Write the response body to the specified file
./main -o "output.html" http://example.com
-I<bool>: Send HTTP HEAD request instead of GET
./main -I http://example.com
-E<string>: Specify the client certificate file for HTTPS
./main -E "client-cert.pem" https://example.com
-D<string>: Write the response headers to the specified file
./main -D "headers.txt" http://example.com
-X<string>: Specify custom request method
./main -X "DELETE" http://example.com/resource/123
-H<string[]>: Pass custom header(s) to server
./main -H "X-Custom-Header: value" -H "Another-Header: another-value" http://example.com
-F<string[]>: Specify HTTP multipart POST data
./main -F "field1=value1" -F "field2=@/path/to/file" http://example.com/upload
--cookie<string>: Send the specified cookies with the request
./main --cookie "sessionId=abc123" http://example.com
--connect-timeout<int>: Maximum time allowed for the connection to be established in seconds
./main --connect-timeout 5 http://example.com
- The client supports both HTTP and HTTPS requests.
- The program will automatically attempt to use TLS when making requests to https:// URLs.
- The -k flag is useful when dealing with servers that have self-signed or otherwise invalid SSL certificates.
- The -D and -o flags can be used together to save both headers and body separately.
- If both -F and -d flags are used, the -F flag takes precedence, and the request will be sent as multipart/form-data.