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description=Reference for Nitric s Go library - Register a handler for connections, disconnections, or messages for the websocket.;

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go websocket on nitric documentation foundations guides search search docs 1 9k search search docs introduction get started installation quick start guides foundations why nitric projects overview configuration infrastructure overview services resources security local development deployment architecture overview services apis schedules websockets websites storage key value stores async messaging queues topics sql databases secrets build apis batch ai ml hpc schedules websockets websites storage key value stores sql databases async messaging secrets deploy overview pulumi overview aws google cloud azure terraform overview aws google cloud azure service mappings aws apis batch schedules websockets websites storage key value stores sql databases topics queues secrets azure apis schedules websites storage key value stores sql databases topics queues secrets google cloud apis batch schedules websites storage key value stores sql databases topics queues secrets custom overview provider extension custom providers adding resource types install with docker languages overview node js overview apis api api get api post api put api delete api patch api route api route all api route get api route post api route put api route delete api route patch batch job job handler job submit http http key value stores kv kv get kv set kv delete kv keys topics topic topic publish topic subscribe queues queue queue enqueue queue dequeue secrets secret secret put secret version secret latest secret version access storage bucket bucket on bucket file bucket files file exists file read file write file delete file getdownloadurl file getuploadurl sql sql sql connectionstring schedules schedule schedule every schedule cron websockets websocket websocket on websocket send websocket close python overview apis api api get api post api put api delete api patch api methods api all batch job job handler job submit key value stores kv kv get kv set kv delete kv keys topics topic topic publish topic subscribe queues queue queue enqueue queue dequeue secrets secret secret put secret version secret latest secret version access storage bucket bucket on bucket file bucket files file read file write file delete file download_url file upload_url sql sql sql connection_string schedules schedule websockets websocket websocket on websocket send go overview resources newapi newjob newkv newqueue newsecret newsqldatabase newbucket newtopic newschedule newwebsocket apis api get api post api put api delete api patch api newroute api route all api route get api route post api route put api route delete api route patch batch job handler job submit key value stores kv get kv set kv delete kv keys topics topic publish topic subscribe queues queue enqueue queue dequeue secrets secret put secret accessversion secret access storage bucket on bucket listfiles bucket read bucket write bucket delete bucket downloadurl bucket uploadurl sql sqldatabase connectionstring schedules schedule every schedule cron websockets websocket on websocket send websocket close dart overview apis api api all api get api post api put api delete api patch api route api route all api route get api route post api route put api route delete api route patch batch job job handler job submit key value stores kv kv get kv set kv delete kv keys topics topic topic publish topic subscribe queues queue queue enqueue queue dequeue secrets secret secret put secret version secret latest secret version access storage bucket bucket on bucket file bucket files file exists file read file write file delete file getdownloadurl file getuploadurl sql sql sql connectionstring schedules schedule schedule every schedule cron websockets websocket websocket on websocket send websocket close reference cli preview features other config env vars custom service containers misc examples faq contributions support go websocket on go websocket on this is reference documentation for the nitric go sdk to learn about websockets in nitric start with the websockets docs register a handler for connections disconnections or messages for the websocket copy copied import github com nitrictech go sdk nitric github com nitrictech go sdk nitric websockets func main ws nitric newwebsocket public ws on websockets eventtype_connect func ctx websockets ctx handle connections ws on websockets eventtype_disconnect func ctx websockets ctx handle disconnections ws on websockets eventtype_message func ctx websockets ctx handle messages nitric run parameters name eventtype required required type websocketeventtype description the type of websocket event to listen for can be eventtype_connect eventtype_disconnect or eventtype_message name handler required required type interface description the callback function to use as the handler for websocket events examples register a handler for message events copy copied ws on websockets eventtype_message func ctx websockets ctx fmt printf new message from s s n ctx request connectionid ctx request message manage websocket connections to store websocket connections you can use a nitric collection copy copied import context github com nitrictech go sdk nitric github com nitrictech go sdk nitric keyvalue github com nitrictech go sdk nitric websockets func main ws nitric newwebsocket public connections nitric newkv connections allow keyvalue kvstoreget keyvalue kvstoreset keyvalue kvstoredelete register a new connection on connect ws on websockets eventtype_connect func ctx websockets ctx error return connections set context todo ctx request connectionid map string interface connectionid ctx request connectionid remove a registered connection on disconnect ws on websockets eventtype_disconnect func ctx websockets ctx error return connections delete context todo ctx request connectionid broadcast message to all the registered websocket connections ws on websockets eventtype_message func ctx websockets ctx error connectionstream err connections keys context todo if err nil return err for connectionid err connectionstream recv if err nil break reached the end of the documents err ws send context todo connectionid byte ctx request message if err nil return err return nil nitric run edit this page on github have feedback on this page open github issue last updated on jan 5 2026 on this page parameters examples edit this page on github 2026 nitric inc contributions support foundations guides follow us on x follow us on github join our discord server youtube