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17b9c73ce3
This commit refactors the whole package gateway as well as utils/ws
(formerly utils/wsutil) and voice/voicegateway. The new refactor
utilizes a design pattern involving a concurrent loop and an arriving
event channel.
An additional change was made to the way gateway events are typed.
Before, pretty much any type will satisfy a gateway event type, since
the actual type was just interface{}. The new refactor defines a
concrete interface that events can implement:
type Event interface {
Op() OpCode
EventType() EventType
}
Using this interface, the user can easily add custom gateway events
independently of the library without relying on string maps. This adds a
lot of type safety into the library and makes type-switching on Event
types much more reasonable.
Gateway error callbacks are also almost entirely removed in favor of
custom gateway events. A catch-all can easily be added like this:
s.AddHandler(func(err error) {
log.Println("gateway error:, err")
})
40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
package api
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import (
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"context"
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"github.com/diamondburned/arikawa/v3/discord"
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"github.com/diamondburned/arikawa/v3/utils/httputil"
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)
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// BotData contains the GatewayURL as well as extra metadata on how to
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// shard bots.
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type BotData struct {
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URL string `json:"url"`
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Shards int `json:"shards,omitempty"`
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StartLimit *SessionStartLimit `json:"session_start_limit"`
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}
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// SessionStartLimit is the information on the current session start limit. It's
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// used in BotData.
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type SessionStartLimit struct {
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Total int `json:"total"`
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Remaining int `json:"remaining"`
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ResetAfter discord.Milliseconds `json:"reset_after"`
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MaxConcurrency int `json:"max_concurrency"`
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}
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// BotURL fetches the Gateway URL along with extra metadata. The token
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// passed in will NOT be prefixed with Bot.
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func (c *Client) BotURL() (*BotData, error) {
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var g *BotData
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return g, c.RequestJSON(&g, "GET", EndpointGatewayBot)
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}
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// GatewayURL asks Discord for a Websocket URL to the Gateway.
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func GatewayURL(ctx context.Context) (string, error) {
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var g BotData
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err := httputil.NewClient().WithContext(ctx).RequestJSON(&g, "GET", EndpointGateway)
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return g.URL, err
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}
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