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29 lines
432 B
Go
29 lines
432 B
Go
package main
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import (
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"context"
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"fmt"
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)
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type contextKey int
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const usernameKey contextKey = iota
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func businessCall(username string) {
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//.. was wichtiges
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fmt.Println(username)
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}
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func main() {
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ctx := context.Background()
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vCtx := context.WithValue(ctx, usernameKey, "bob")
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//.. einiges anderes
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businessCall(vCtx.Value(usernameKey).(string))
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//Variante2
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username := "bob"
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//.. einiges anderes
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businessCall(username)
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}
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