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//! Azure IoT device client for writing iot device code in rust
//!
//! ## Feature flags
//!
//! SDK client uses [feature
//! flags](https://doc.rust-lang.org/cargo/reference/features.html#the-features-section) to
//! configure capabilities of the client sdk. By default all features are enabled.
//!
//! Device to cloud messaging is always available.
//!
//! - `c2d-messages`: Enables cloud to device messaging
//! - `twin-properties`: Enables device twin property updates
//! - `direct-methods`: Enables listening for direct method invocations
//!
//! ### Disabling capabilities
//! If not all features are required, disable the default features and add only desired.
//!
//! ```toml
//! azure_iot_sdk = { version = "0.3.0", features = [], default-features = false }
//! ```
//!
//! # Examples
//!
//! A simple client
//! ```no_run
//! use tokio::time;
//! use azure_iot_sdk::{IoTHubClient, DeviceKeyTokenSource, Message};
//!
//! #[tokio::main]
//! async fn main() -> azure_iot_sdk::Result<()> {
//!     let iothub_hostname = "iothubname.azure-devices.net";
//!     let device_id = "MyDeviceId";
//!     let token_source = DeviceKeyTokenSource::new(
//!         iothub_hostname,
//!         device_id,
//!         "TheAccessKey",
//!     ).unwrap();
//!
//!     let mut client =
//!         IoTHubClient::new(iothub_hostname, device_id.into(), token_source).await?;
//!
//!     let mut interval = time::interval(time::Duration::from_secs(1));
//!     let mut count: u32 = 0;
//!
//!     loop {
//!         interval.tick().await;
//!
//!         let msg = Message::builder()
//!             .set_body(format!("Message #{}", count).as_bytes().to_vec())
//!             .set_message_id(format!("{}-t", count))
//!             .build();
//!
//!         client.send_message(msg).await?;
//!
//!         count += 1;
//!     }
//!
//!     Ok(())
//! }
//! ```

#![warn(missing_debug_implementations, rust_2018_idioms, missing_docs)]

#[macro_use]
extern crate log;

/// IoT SDK package version
pub const SDK_VERSION: &str = std::env!("CARGO_PKG_VERSION");

/// The IoT Hub client
pub mod client;
pub use client::*;

// #[cfg(feature = "http-transport")]
// pub(crate) mod http_transport;
/// Message types for communicating with the IoT Hub
pub mod message;
pub use message::*;
///
#[cfg(feature = "https-transport")]
pub(crate) mod http_transport;
///
#[cfg(not(feature = "https-transport"))]
pub(crate) mod mqtt_transport;
///
pub mod token;
pub use token::*;
/// Transport types
pub mod transport;

#[cfg(feature = "with-provision")]
/// Provision support using Azure device provisioning service
pub mod provision;

/// Convenience type alias for `std::result::Result<T, Box<dyn std::error::Error>>`
pub type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;