Adding `try_wrap_ok` library as a dependency

Run this command in a terminal, in your project's directory:

cargo add try_wrap_ok

To add it manually, edit your project's Cargo.toml file and add to the [dependencies] section:

try_wrap_ok = "0.1.1"

The try_wrap_ok library will be automatically available globally. Read the try_wrap_ok library documentation.

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Readme

try_wrap_ok

This crate provides a macro similar to the old try! macro, or to the ?, except it wraps the error in an additional Ok.

This is useful if you want to use a ? for easily returning say, invalid input errors, but you can't do so because you have an additional Result level for handling internal errors of a different nature.

This macro allows you to do so:

fn foo(input: Input) -> Result<Result<FinalOutput, InvalidInputError>, DatabaseError> {
    let validated_input: ValidatedInput = try_wrap_ok!(validate_input_with_database(input)?);
    Ok(Ok(do_stuff_with_validated_input(validated_input)?))
}

fn validate_input_with_database(input: Input) -> Result<Result<ValidatedInput, InvalidInputError>, DatabaseError>;

Adding try_wrap_ok library as a dependency

Adding `try_wrap_ok` library as a dependency