Enum Error 

pub enum Error {
    EnvVar(VarError, String),
}

Comprehensive error types that can occur during client configuration.

This enum covers all possible error conditions that may arise during client configuration operations, from environment variable access to configuration validation.

Error Categories

• Environment Variable Errors: Issues with accessing or parsing environment variables

Examples

use apollo_rust_client::client_config::{ClientConfig, Error};

match ClientConfig::from_env() {
    Ok(config) => {
        // Handle successful configuration creation
    }
    Err(Error::EnvVar(var_error, var_name)) => {
        // Handle missing or invalid environment variables
        eprintln!("Environment variable '{}' error: {}", var_name, var_error);
    }
    Err(e) => {
        // Handle other errors
        eprintln!("Configuration error: {}", e);
    }
}

Variants

EnvVar(VarError, String)

An environment variable access error occurred.

This error occurs when attempting to read an environment variable that is not set or cannot be accessed. The error includes both the underlying system error and the name of the variable that failed.

Trait Implementations

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, __formatter: &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 From<Error> for JsValue

fn from(error: Error) -> Self

Converts to this type from the input type.