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add the same warnings in Subscribe and PrepareSubscription help comments.

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fiatjaf
2023-08-31 09:27:20 -03:00
parent b8eeb658cc
commit 4c50cce79c
1 changed files with 6 additions and 0 deletions
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6
relay.go
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@ -462,6 +462,9 @@ func (r *Relay) Auth(ctx context.Context, event Event) (Status, error) {
// Subscribe sends a "REQ" command to the relay r as in NIP-01. // Subscribe sends a "REQ" command to the relay r as in NIP-01.
// Events are returned through the channel sub.Events. // Events are returned through the channel sub.Events.
// The subscription is closed when context ctx is cancelled ("CLOSE" in NIP-01). // The subscription is closed when context ctx is cancelled ("CLOSE" in NIP-01).
//
// Remember to cancel subscriptions, either by calling `.Unsub()` on them or ensuring their `context.Context` will be canceled at some point.
// Failure to do that will result in a huge number of halted goroutines being created.
func (r *Relay) Subscribe(ctx context.Context, filters Filters, opts ...SubscriptionOption) (*Subscription, error) { func (r *Relay) Subscribe(ctx context.Context, filters Filters, opts ...SubscriptionOption) (*Subscription, error) {
sub := r.PrepareSubscription(ctx, filters, opts...) sub := r.PrepareSubscription(ctx, filters, opts...)
@ -473,6 +476,9 @@ func (r *Relay) Subscribe(ctx context.Context, filters Filters, opts ...Subscrip
} }
// PrepareSubscription creates a subscription, but doesn't fire it. // PrepareSubscription creates a subscription, but doesn't fire it.
//
// Remember to cancel subscriptions, either by calling `.Unsub()` on them or ensuring their `context.Context` will be canceled at some point.
// Failure to do that will result in a huge number of halted goroutines being created.
func (r *Relay) PrepareSubscription(ctx context.Context, filters Filters, opts ...SubscriptionOption) *Subscription { func (r *Relay) PrepareSubscription(ctx context.Context, filters Filters, opts ...SubscriptionOption) *Subscription {
if r.Connection == nil { if r.Connection == nil {
panic(fmt.Errorf("must call .Connect() first before calling .Subscribe()")) panic(fmt.Errorf("must call .Connect() first before calling .Subscribe()"))