fix: added error handling for connection issues #56
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Ash-L2L
requested changes
May 19, 2025
| match url::Url::parse(s) { | ||
| Ok(url) => Ok(url), | ||
| Err(e) => { | ||
| let error_msg = e.to_string().to_lowercase(); |
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Can you match on url::ParseError instead? Matching by string value seems brittle and unnecessary
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| /// Custom URL parser that adds http:// prefix if missing | ||
| fn parse_url(s: &str) -> Result<url::Url, String> { | ||
| // Check if the URL already has a scheme |
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If the scheme must be http, then perhaps we should only be parsing a url::Host and port (u16), and adding the scheme ourselves
| @@ -107,6 +362,73 @@ pub struct Cli { | |||
| #[command(subcommand)] | |||
| pub command: Command, | |||
| } | |||
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| /// Custom URL parser that adds http:// prefix if missing | |||
| fn parse_url(s: &str) -> Result<url::Url, String> { | |||
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Can this have a custom error type? Using String seems brittle and limiting
| let rpc_url = self.rpc_url.clone(); | ||
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| // Build the client and handle connection errors | ||
| let client = builder.build(self.rpc_url.clone()).map_err(|err| { |
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Is it possible to match on the error here?
| .await | ||
| .map_err(|err| { | ||
| // Check if this is a connection error that happened during the request | ||
| if let Some(client_err) = err.downcast_ref::<jsonrpsee::core::ClientError>() { |
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Downcasting here is very brittle. You probably want to match on the actual errors, so that you can display the correct error message for wrapped errors
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This PR addresses issue #11 by improving the error handling for connection issues in the CLI.
Added:
CliErrorto handle connection errors more gracefullyhttp://protocol prefixExample DNS Issue:
Connection Refused:
Connection Timeout: