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jsonerr help to crate json error
Usage
use jsonerr::*;
fn main() {
let myjson = jsonerr!(code = "ERR001", message = "An error message");
println!("{:#?}", myjson);
}
return
{
"iserr":true,
"err":{
"code":"ERR001",
"message":"An error message"
}
}
Embed caused error
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
{
"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}
)
{
"iserr":true,
"err":{
"code":"ERR003",
"message":"An error message",
"origin": {
"deep": "caused error",
"test": 1
}
}
}
Embed payload
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
{
"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