Enum Error 

pub enum Error {
    DatabaseError(MessageResource, String),
    ClientError(MessageResource),
    UnexpectedStatusCode(u16, u16, Vec<MessageResource>),
    Unspecified,
    SerdeError(MessageResource, String),
    ComputeError(MessageResource),
    NetworkError(MessageResource),
}

This is supposed to be used whenever you have an error in your code and want to be more specific about it. Fits in with most CRUD web apps. What you send back to the client is a MessageResource, not the error itself!

Variants

DatabaseError(MessageResource, String)

Takes a Message and the query

ClientError(MessageResource)

Same as UnexpectedStatusCode but without the extra details.

UnexpectedStatusCode(u16, u16, Vec<MessageResource>)

Takes the status code you expected, the actual status code, and the ErrorMessage. This is meant to be used when your app tries to use an API, be it internal or external.

Unspecified

Try and never use this error, unless you really need to.

SerdeError(MessageResource, String)

If you had an error serializing/deserializing and wish to display more details. Such as the entire Json as a string, this is how.

ComputeError(MessageResource)

Normally used in compute heavy operations, such as Hashing.

NetworkError(MessageResource)

Self explanatory, Network related error.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl FromStr for Error

type Err = Error

The associated error which can be returned from parsing.

fn from_str(string: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl ReturnableErrorShape for Error

fn convert_to_returnable<T: Serialize>( &self, status_code: u16, ) -> TypedHttpResponse<T>