README

jsonerr help to crate json error

Usage

rust use jsonerr::*; fn main() { let myjson = jsonerr!(code = "ERR001", message = "An error message"); println!("{:#?}", myjson); }

return

json { "iserr":true, "err":{ "code":"ERR001", "message":"An error message" } }

Embed caused error

rust use jsonerr::*; fn main() { let error = "NaN".parse::<u32>().unwrap_err(); let myjson = jsonerr!( code = "ERR002", message = "An error message", origin = error // <-- 'std::error::Error' only ); println!("{:#?}", myjson); }

return

json { "iserr":true, "err":{ "code":"ERR003", "message":"An error message", "origin": "invalid digit found in string" } }

If error message string like a json (example {"deep":"caused error","test":1})

json { "iserr":true, "err":{ "code":"ERR003", "message":"An error message", "origin": { "deep": "caused error", "test": 1 } } }

Embed payload

rust use jsonerr::*; fn main() { let myjson = jsonerr!( code = "ERR002", message = "An error message", payload = serde_json::json!({ "more": "data" }) // <-- 'serde_json::Value' only ); println!("{:#?}", myjson); }

return

json { "iserr":true, "err":{ "code":"ERR003", "message":"An error message", "payload": { "more": "data" } } }

Examples

• cargo run --example basic

 Why jsonerr ?

• When you need a json with always .meta, .err and .iserr
• When you need a .err with always .code, .message, .origin, payload
• When you need embed quickly caused error