package config import ( "fmt" "github.com/nats-io/nats.go" ) type JetStream struct { Matrix *Global `yaml:"-"` // Persistent directory to store JetStream streams in. StoragePath Path `yaml:"storage_path"` // A list of NATS addresses to connect to. If none are specified, an // internal NATS server will be used when running in monolith mode only. Addresses []string `yaml:"addresses"` // The prefix to use for stream names for this homeserver - really only // useful if running more than one Dendrite on the same NATS deployment. TopicPrefix string `yaml:"topic_prefix"` // Keep all storage in memory. This is mostly useful for unit tests. InMemory bool `yaml:"in_memory"` } func (c *JetStream) TopicFor(name string) string { return fmt.Sprintf("%s%s", c.TopicPrefix, name) } func (c *JetStream) Durable(name string) nats.SubOpt { return nats.Durable(c.TopicFor(name)) } func (c *JetStream) Defaults(generate bool) { c.Addresses = []string{} c.TopicPrefix = "Dendrite" if generate { c.StoragePath = Path("./") } } func (c *JetStream) Verify(configErrs *ConfigErrors, isMonolith bool) { // If we are running in a polylith deployment then we need at least // one NATS JetStream server to talk to. if !isMonolith { checkNotZero(configErrs, "global.jetstream.addresses", int64(len(c.Addresses))) } }