# APNS
The library was inspired by [Apns4erl](https://github.com/inaka/apns4erl)
## Warning
This library is a work in progress and it's API is subject to change till `v0.1`, please consider use of `== ver` operator rather than `~> ver` when requiring `apns4ex` as a dependency or your application may be broken with next release of the library.
## Installation
1. Add apns to your list of dependencies in mix.exs:
def deps do
[{:apns, "== 0.0.7"}]
end
2. Ensure apns is started before your application:
def application do
[applications: [:apns]]
end
## Usage
Config the APNS app and define pools
```elixir
config :apns,
# Here goes "global" config applied as default to all pools started if not overwritten by pool-specific value
callback_module: APNS.Callback,
timeout: 30,
feedback_interval: 1200,
reconnect_after: 1000,
support_old_ios: true,
# Here are pools configs. Any value from "global" config can be overwritten in any single pool config
pools: [
# app1_dev_pool is the pool_name
app1_dev_pool: [
env: :dev,push server)
pool_size: 10,
pool_max_overflow: 5,
# and this is overwritten config key
certfile: "/path/to/app1_dev.pem"
],
app1_prod_pool: [
env: :prod,
certfile: "/path/to/app1_prod.pem",
pool_size: 100,
pool_max_overflow: 50
],
]
```
### Config keys
Name | Default value | Description
:----------------- | :------------- | :-------------------
certfile | nil | Path to APNS certificate file
cert_password | nil | APNS certificate password (if any)
keyfile | nil | Path to APNS keyfile
callback_module | APNS.Callback | This module will receive all error and feedback messages from APNS
timeout | 30 | Connection timeout in seconds
feedback_interval | 1200 | The app will check Apple feedback server every `feedback_interval` seconds
reconnect_after | 1000 | Will reconnect after 1000 notifications sent
support_old_ios | true | Push notifications are limited by 256 bytes (2kb if false), this option can be changed per message individually
pools | [] | List of pools to start
### Pool keys
Pool key | Description
:----------------- | :-------------
env | :dev for Apple sandbox push server or :prod for Apple production push server
pool_size | Maximum pool size
pool_max_overflow | Maximum number of workers created if pool is empty
All pools defined in config will be started automatically
From here and now you can start pushing your PNs via APNS.push/2 and APNS.push/3:
```Elixir
message = APNS.Message.new
message = message
|> Map.put(:token, "0000000000000000000000000000000000000000000000000000000000000000")
|> Map.put(:alert, "Hello world!")
|> Map.put(:badge, 42)
|> Map.put(:extra, %{
"var1" => "val1",
"var2" => "val2"
})
APNS.push :app1_dev_pool, message
```
or
```Elixir
APNS.push :app1_prod_pool, "0000000000000000000000000000000000000000000000000000000000000000", "Hello world!"
```
## Handling APNS errors and feedback
You can define callback handler module via config param `callback_module`, the module should implement 2 functions: `error/1` and `feedback/1`. These functions will be called when APNS responds with error or feedback to the app. `%APNS.Error` and `%APNS.Feedback` structs are passed to the functions accordingly.
## Structs
- %APNS.Message{}
```elixir
defstruct [
id: nil,
expiry: 86400000,
token: "",
content_available: nil,
alert: "",
badge: nil,
sound: "default",
priority: 10,
extra: [],
support_old_ios: nil
]
```
- %APNS.Error{}
```elixir
defstruct [
message_id: nil,
status: nil,
error: nil
]
```
- %APNS.Feedback{}
```elixir
defstruct [
time: nil,
token: nil
]
```
- %APNS.Message.Loc{}
```elixir
defstruct [
title: "",
body: "",
title_loc_key: nil,
title_loc_args: nil,
action_loc_key: nil,
loc_key: "",
loc_args: [],
launch_image: nil
]
```
