Created
July 27, 2025 21:04
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Generic Go context holder
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| package main | |
| import "context" | |
| type contextKey[T any] struct{} | |
| func With[T any](ctx context.Context, t T) context.Context { | |
| var k contextKey[T] | |
| return context.WithValue(ctx, k, t) | |
| } | |
| func Get[T any](ctx context.Context) (T, bool) { | |
| var k contextKey[T] | |
| val, ok := ctx.Value(k).(T) | |
| return val, ok | |
| } |
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