Crate a2[−][src]

A2

A2 is an asynchronous client to Apple push notification service. It provides a type-safe way to generate correct requests, mapping responses into corresponding types. The client supports both, certificate and token based authentication.

To create a connection it is required to have either a PKCS12 database file including a valid certificate and private key with a password for unlocking it, or a private key in PKCS8 PEM format with the corresponding team and key ids. All of these should be available from Xcode or your Apple developer account.

The library is meant to be high performace and typesafe, used together with the Tokio framework in an asynchronous event loop.

Payload

Building the notification payload should be done with the corresponding builders:

PlainNotificationBuilder for text only messages.
SilentNotificationBuilder for silent notifications with custom data.
LocalizedNotificationBuilder for localized rich notifications.

The payload generated by the builder can hold a custom data section, defined by a selected root key. Any data using #[derive(Serialize)] from Serde works, allowing usage of type-safe structs or dynamic hashmaps to generate the custom data.

Client

The asynchronous client, works either with certificate or token authentication.

Example sending a plain notification using token authentication:

extern crate tokio;
extern crate a2;
extern crate futures;

use a2::{PlainNotificationBuilder, NotificationBuilder, Client, Endpoint};
use std::fs::File;
use futures::future::lazy;
use futures::Future;

fn main() {
    let mut builder = PlainNotificationBuilder::new("Hi there");
    builder.set_badge(420);
    builder.set_category("cat1");
    builder.set_sound("ping.flac");

    let payload = builder.build("device-token-from-the-user", Default::default());
    let mut file = File::open("/path/to/private_key.p8").unwrap();

    let client = Client::token(
        &mut file,
        "KEY_ID",
        "TEAM_ID",
        Endpoint::Production).unwrap();

    tokio::run(lazy(move || {
        client
            .send(payload)
            .map(|response| {
                println!("Sent: {:?}", response);
            })
            .map_err(|error| {
                println!("Error: {:?}", error);
           })
    }));
}

Example sending a silent notification with custom data using certificate authentication:

#[macro_use] extern crate serde_derive;
extern crate serde;
extern crate tokio;
extern crate a2;
extern crate futures;

use a2::{Client, Endpoint, SilentNotificationBuilder, NotificationBuilder};
use std::fs::File;
use futures::future::lazy;
use futures::Future;

#[derive(Serialize, Debug)]
struct CorporateData {
    tracking_code: &'static str,
    is_paying_user: bool,
}

fn main() {
    let tracking_data = CorporateData {
        tracking_code: "999-212-UF-NSA",
        is_paying_user: false,
    };

    let mut payload = SilentNotificationBuilder::new()
        .build("device-token-from-the-user", Default::default());
    payload.add_custom_data("apns_gmbh", &tracking_data).unwrap();

    let mut file = File::open("/path/to/cert_db.p12").unwrap();

    let client = Client::certificate(
        &mut file,
        "Correct Horse Battery Stable",
        Endpoint::Production).unwrap();

    let sending = client.send(payload);

    tokio::run(lazy(move || {
        sending
            .map(|response| {
                println!("Sent: {:?}", response);
            })
            .map_err(|error| {
                println!("Error: {:?}", error);
           })
    }));
}

Re-exports

pub use request::notification::NotificationBuilder;

pub use response::Response;

pub use response::ErrorBody;

pub use response::ErrorReason;

pub use client::Endpoint;

pub use client::Client;

pub use client::FutureResponse;

pub use error::Error;

Modules

client	The client module for sending requests and parsing responses
error	Error and result module
request	The request payload module
response	The APNs response types

Structs

CollapseId
LocalizedNotificationBuilder	A builder to create a localized APNs payload.
NotificationOptions	Headers to specify options to the notification.
PlainNotificationBuilder	A builder to create a simple APNs notification payload.
SilentNotificationBuilder	A builder to create an APNs silent notification payload which can be used to send custom data to the user's phone if the user hasn't been running the app for a while. The custom data needs to be implementing `Serialize` from Serde.

Enums

Priority

The importance how fast to bring the notification for the user..