WeChat.RefreshTimer (wechat v0.2.0)
token 刷新器
这个是默认的刷新器，当然也支持自定义的刷新器，可以这样配置：
config :wechat, :refresh_timer, YourRefreshTimer
# or with state
config :wechat, :refresh_timer, {YourRefreshTimer, state}默认的刷新器支持多种配置：
配置1
config :wechat, :refresh_settings, [ClientA, ClientB, ClientC]以上配置会自动为三个 Client 定时刷新 token ，默认会在 token 过期前 30 分钟刷新，token 刷新失败的重试间隔为 1 分钟，
默认的 token 刷新列表为：WeChat.RefreshHelper.get_refresh_options_by_client/1 输出的结果
配置2
config :wechat, :refresh_settings, [{ClientA, options}, ClientB, ClientC]
# or
config :wechat, :refresh_settings, %{ClientA => options, ClientB => options, ClientC => options}options 配置说明见：options/0
为了适应 Storage 在 RefreshTimer 启动之后才启动，可以开启延时启动刷新:
config :wechat, WeChat.RefreshTimer, wait_for_signal: true当所有的 Storage 都已经完成，可以即可通过 WeChat.RefreshTimer.start_monitor/0 方法刷新 token
不配置默认为立即启动刷新
Link to this section Summary
Functions
Returns a specification to start this module under a supervisor.
Link to this section Types
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options()
Specs
options() :: %{
optional(:refresh_before_expired) => refresh_before_expired(),
optional(:refresh_retry_interval) => refresh_retry_interval(),
optional(:refresh_options) => WeChat.RefreshHelper.refresh_options()
}
option
:refresh_before_expired: 在token过去前多少秒刷新，单位：秒，可选，server_role=hub时, 默认值：2 * 1800秒； 其余角色默认值：1800秒:refresh_retry_interval: 刷新token失败的重试间隔，单位：秒，可选，默认值：60000秒:refresh_options: 刷新token配置，可选，默认值：WeChat.RefreshHelper.get_refresh_options_by_client/1的输出结果
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refresh_before_expired()
Specs
refresh_before_expired() :: non_neg_integer()
在 token 过去前多少秒刷新，单位：秒
如果server_role = hub, hub server 的值请大于 hub client
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refresh_retry_interval()
Specs
refresh_retry_interval() :: non_neg_integer()
刷新 token 失败的重试间隔，单位：秒
Link to this section Functions
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add(client, opts)
Specs
add(WeChat.client(), options()) :: :ok
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child_spec(init_arg)
Returns a specification to start this module under a supervisor.
See Supervisor.
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refresh(client)
Specs
refresh(WeChat.client()) :: :ok | :nofound
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refresh_key(store_id, store_key, value, expired_time, client)
Specs
refresh_key( WeChat.Storage.Adapter.store_id(), WeChat.Storage.Adapter.store_key(), WeChat.Storage.Adapter.value(), expired_time :: integer(), WeChat.client() ) :: :ok
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remove(client)
Specs
remove(WeChat.client()) :: :ok
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start_link(state \\ %{})
Specs
start_link(state :: %{required(WeChat.client()) => options()}) ::
GenServer.on_start()
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start_monitor()
Specs
start_monitor() :: :ok