jsonhash 0.2.0

A command-line tool to generate hash values for files. SHA256 and MD5. Output and Error messages in JSON format.
Documentation 
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use serde::{Deserialize, Serialize};

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ErrorMessage {
    pub code: i32,
    pub message: String,
}

impl ErrorMessage {
    pub fn to_json(&self) -> String {
        serde_json::to_string(self).unwrap_or_else(|_| "{}".to_string())
    }
}