35 lines
740 B
Go
35 lines
740 B
Go
package client
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import (
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"context"
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)
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type clientKey struct{}
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// FromContext get client from context
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func FromContext(ctx context.Context) (Client, bool) {
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if ctx == nil {
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return nil, false
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}
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c, ok := ctx.Value(clientKey{}).(Client)
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return c, ok
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}
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// NewContext put client in context
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func NewContext(ctx context.Context, c Client) context.Context {
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if ctx == nil {
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ctx = context.Background()
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}
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return context.WithValue(ctx, clientKey{}, c)
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}
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// SetPublishOption returns a function to setup a context with given value
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func SetPublishOption(k, v interface{}) PublishOption {
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return func(o *PublishOptions) {
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if o.Context == nil {
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o.Context = context.Background()
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}
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o.Context = context.WithValue(o.Context, k, v)
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}
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}
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