Struct Config 

pub struct Config {
    pub base_url: String,
    pub api_key: Option<String>,
    pub timeout: Duration,
    pub user_agent: String,
    pub max_retries: u32,
}

Configuration for the currency converter client

Fields

base_url: String

Base URL for the API

api_key: Option<String>

API key (optional for some services)

timeout: Duration

Request timeout duration

user_agent: String

User agent string for requests

max_retries: u32

Maximum number of retries for failed requests

Implementations

impl Config

pub fn new() -> Self

Create a new configuration with default values

pub fn with_api_key<S: Into<String>>(self, api_key: S) -> Self

Set the API key from environment variable or explicit value

pub fn with_base_url<S: Into<String>>(self, base_url: S) -> Self

Set the base URL

pub fn with_timeout(self, timeout: Duration) -> Self

Set the request timeout

pub fn from_env() -> Result<Self>

Load configuration from environment variables

pub fn get_api_key(&self) -> Result<&str>

Get the API key, returning an error if not set

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Config

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

Formats the value using the given formatter.