twitch-bot/pkg/twitch/subscriptions.go

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package twitch
import (
"context"
"fmt"
"net/http"
"time"
"github.com/pkg/errors"
)
const subInfoCacheTimeout = 300 * time.Second
type (
subInfo struct {
Total int64 `json:"total"`
Points int64 `json:"points"`
}
)
// GetBroadcasterSubscriptionCount gets a list of users that subscribe to the specified broadcaster.
func (c *Client) GetBroadcasterSubscriptionCount(ctx context.Context, broadcasterName string) (subCount, subPoints int64, err error) {
cacheKey := []string{"broadcasterSubscriptionCountByChannel", broadcasterName}
if d := c.apiCache.Get(cacheKey); d != nil {
data := d.(subInfo)
return data.Total, data.Points, nil
}
broadcaster, err := c.GetIDForUsername(ctx, broadcasterName)
if err != nil {
return 0, 0, errors.Wrap(err, "getting ID for broadcaster name")
}
var data subInfo
if err = c.Request(ctx, ClientRequestOpts{
AuthType: AuthTypeBearerToken,
Method: http.MethodGet,
OKStatus: http.StatusOK,
Out: &data,
URL: fmt.Sprintf("https://api.twitch.tv/helix/subscriptions?broadcaster_id=%s", broadcaster),
}); err != nil {
return 0, 0, errors.Wrap(err, "executing request")
}
// Lets not annoy the API but only ask every 5m
c.apiCache.Set(cacheKey, subInfoCacheTimeout, data)
return data.Total, data.Points, nil
}