chrome.mdns
- Description
Use the
chrome.mdnsAPI to discover services over mDNS. This comprises a subset of the features of the NSD spec: http://www.w3.org/TR/discovery-api/ - Permissions
mdns - AvailabilityChrome 43+
Summary
- Types
- Properties
- Methods
- Events
Types
MDnsService
Properties
- ipAddress
string
The IP address of an mDNS advertised service.
- serviceData
string[]
Metadata for an mDNS advertised service.
- serviceHostPort
string
The host:port pair of an mDNS advertised service.
- serviceName
string
The service name of an mDNS advertised service, ..
Properties
MAX_SERVICE_INSTANCES_PER_EVENT
The maximum number of service instances that will be included in onServiceList events. If more instances are available, they may be truncated from the onServiceList event.
Value
2048
Methods
forceDiscovery
chrome.mdns.forceDiscovery(
callback?:
function,
)
Immediately issues a multicast DNS query for all service types. callback is invoked immediately. At a later time, queries will be sent, and any service events will be fired.
Parameters
- callback
function optional
The
callbackparameter looks like:() => void
Returns
Promise<void>
Chrome 96+Promises are supported in Manifest V3 and later, but callbacks are provided for backward compatibility. You cannot use both on the same function call. The promise resolves with the same type that is passed to the callback.
Events
onServiceList
chrome.mdns.onServiceList.addListener(
callback:
function,
)
Event fired to inform clients of the current complete set of known available services. Clients should only need to store the list from the most recent event. The service type that the extension is interested in discovering should be specified as the event filter with the 'serviceType' key. Not specifying an event filter will not start any discovery listeners.
Parameters
- callback
function
The
callbackparameter looks like:(services: MDnsService[]) => void- services