Struct ServerError

pub struct ServerError {
    pub message: String,
    pub source: Option<Arc<dyn Any + Send + Sync>>,
    pub locations: Vec<Pos>,
    pub path: Vec<PathSegment>,
    pub extensions: Option<ErrorExtensionValues>,
}

An error in a GraphQL server.

Fields

message: String

An explanatory message of the error.

source: Option<Arc<dyn Any + Send + Sync>>

The source of the error.

locations: Vec<Pos>

Where the error occurred.

path: Vec<PathSegment>

If the error occurred in a resolver, the path to the error.

extensions: Option<ErrorExtensionValues>

Extensions to the error.

Implementations

impl ServerError

pub fn new(message: impl Into<String>, pos: Option<Pos>) -> Self

Create a new server error with the message.

pub fn source<T: Any + Send + Sync>(&self) -> Option<&T>

Get the source of the error.

Examples

use std::io::ErrorKind;

use async_graphql::*;

struct Query;

#[Object]
impl Query {
    async fn value(&self) -> Result<i32> {
        Err(Error::new_with_source(std::io::Error::other("my error")))
    }
}

let schema = Schema::new(Query, EmptyMutation, EmptySubscription);

let err = schema
    .execute("{ value }")
    .await
    .into_result()
    .unwrap_err()
    .remove(0);
assert!(err.source::<std::io::Error>().is_some());

Trait Implementations

impl Clone for ServerError

fn clone(&self) -> ServerError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ServerError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ServerError

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ServerError

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

Formats the value using the given formatter.

impl From<Error> for ServerError

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<ServerError> for Vec<ServerError>

fn from(single: ServerError) -> Self

Converts to this type from the input type.

impl PartialEq for ServerError

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ServerError

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.