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Fn tauri::api::rpc::format_callback_result

pub fn format_callback_result<T: Serialize, E: Serialize>(
    result: Result<T, E>, 
    success_callback: impl AsRef<str>, 
    error_callback: impl AsRef<str>
) -> Result<String>

Expand description

Formats a Result type to its Promise response. Useful for Promises handling. If the Result is_ok(), the callback will be the success_callback function name and the argument will be the Ok value. If the Result is_err(), the callback will be the error_callback function name and the argument will be the Err value.

  • result the Result to check
  • success_callback the function name of the Ok callback. Usually the resolve of the JS Promise.
  • error_callback the function name of the Err callback. Usually the reject of the JS Promise.

Note that the callback strings are automatically generated by the invoke helper.

Examples#

use tauri::api::rpc::format_callback_result;
let res: Result<u8, &str> = Ok(5);
let cb = format_callback_result(res, "success_cb", "error_cb").expect("failed to format");
assert!(cb.contains(r#"window["success_cb"](5)"#));

let res: Result<&str, &str> = Err("error message here");
let cb = format_callback_result(res, "success_cb", "error_cb").expect("failed to format");
assert!(cb.contains(r#"window["error_cb"]("error message here")"#));