50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
package container
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import (
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"context"
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"errors"
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"github.com/go-chi/chi/middleware"
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goweb "gitlab.com/wpetit/goweb/middleware"
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"gitlab.com/wpetit/goweb/service"
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)
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const (
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// KeyServiceContainer is the context key associated with the ServiceContainer value
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KeyServiceContainer goweb.ContextKey = "serviceContainer"
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)
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// ErrInvalidServiceContainer is returned when no service container
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// could be found on the given context
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var ErrInvalidServiceContainer = errors.New("invalid service container")
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// From retrieves the service container from the given context
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func From(ctx context.Context) (*service.Container, error) {
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container, ok := ctx.Value(KeyServiceContainer).(*service.Container)
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if !ok {
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return nil, ErrInvalidServiceContainer
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}
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return container, nil
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}
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// Must retrieves the service container from the given context or panics otherwise
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func Must(ctx context.Context) *service.Container {
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container, err := From(ctx)
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if err != nil {
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panic(err)
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}
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return container
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}
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// ServiceContainer expose the given service container as a context value
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// on the HTTP requests
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func ServiceContainer(container *service.Container) goweb.Middleware {
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return middleware.WithValue(KeyServiceContainer, container)
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}
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// WithContainer returns a new context.Context with the given *service.Container
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// attached.
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func WithContainer(ctx context.Context, container *service.Container) context.Context {
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return context.WithValue(ctx, KeyServiceContainer, container)
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}
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