assemblyai/dist/assemblyai.streaming.umd.min.js

The AssemblyAI JavaScript SDK provides an easy-to-use interface for interacting with the AssemblyAI API, which supports async and real-time transcription, as well as the latest LeMUR models.

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Please visit https://app.assemblyai.com/ to add a credit card to your account.",[4004]:"Session ID does not exist",[4008]:"Session has expired",[4010]:"Session is closed",[4029]:"Rate limited",[4030]:"Unique session violation",[4031]:"Session Timeout",[4032]:"Audio too short",[4033]:"Audio too long",[4034]:"Audio too small to transcode",[4100]:"Bad JSON",[4101]:"Bad schema",[4102]:"Too many streams",[4103]:"This session has been reconnected. This WebSocket is no longer valid.",[1013]:"Reconnect attempts exhausted",[4104]:"Could not parse word boost parameter"};class l extends Error{}const c='{"terminate_session":true}';class d{constructor(e){var t,s;if(this.listeners={},this.realtimeUrl=null!==(t=e.realtimeUrl)&&void 0!==t?t:"wss://api.assemblyai.com/v2/realtime/ws",this.sampleRate=null!==(s=e.sampleRate)&&void 0!==s?s:16e3,this.wordBoost=e.wordBoost,this.encoding=e.encoding,this.endUtteranceSilenceThreshold=e.endUtteranceSilenceThreshold,this.disablePartialTranscripts=e.disablePartialTranscripts,"token"in e&&e.token&&(this.token=e.token),"apiKey"in e&&e.apiKey&&(this.apiKey=e.apiKey),!this.token&&!this.apiKey)throw new Error("API key or temporary token is required.")}connectionUrl(){const e=new URL(this.realtimeUrl);if("wss:"!==e.protocol)throw new Error("Invalid protocol, must be wss");const t=new URLSearchParams;return this.token&&t.set("token",this.token),t.set("sample_rate",this.sampleRate.toString()),this.wordBoost&&this.wordBoost.length>0&&t.set("word_boost",JSON.stringify(this.wordBoost)),this.encoding&&t.set("encoding",this.encoding),t.set("enable_extra_session_information","true"),this.disablePartialTranscripts&&t.set("disable_partial_transcripts",this.disablePartialTranscripts.toString()),e.search=t.toString(),e}on(e,t){this.listeners[e]=t}connect(){return new Promise((e=>{if(this.socket)throw new Error("Already connected");const t=this.connectionUrl();this.token?this.socket=r(t.toString()):(console.warn("API key authentication is not supported for the RealtimeTranscriber in browser environment. Use temporary token authentication instead.\nLearn more at https://github.com/AssemblyAI/assemblyai-node-sdk/blob/main/docs/compat.md#browser-compatibility."),this.socket=r(t.toString(),{headers:{Authorization:this.apiKey}})),this.socket.binaryType="arraybuffer",this.socket.onopen=()=>{void 0!==this.endUtteranceSilenceThreshold&&null!==this.endUtteranceSilenceThreshold&&this.configureEndUtteranceSilenceThreshold(this.endUtteranceSilenceThreshold)},this.socket.onclose=({code:e,reason:t})=>{var s,i;t||e in a&&(t=a[e]),null===(i=(s=this.listeners).close)||void 0===i||i.call(s,e,t)},this.socket.onerror=e=>{var t,s,i,o;e.error?null===(s=(t=this.listeners).error)||void 0===s||s.call(t,e.error):null===(o=(i=this.listeners).error)||void 0===o||o.call(i,new Error(e.message))},this.socket.onmessage=({data:t})=>{var s,i,o,n,r,a,c,d,h,u,p,m,f,w,v;const b=JSON.parse(t.toString());if("error"in b)null===(i=(s=this.listeners).error)||void 0===i||i.call(s,new l(b.error));else switch(b.message_type){case"SessionBegins":{const t={sessionId:b.session_id,expiresAt:new Date(b.expires_at)};e(t),null===(n=(o=this.listeners).open)||void 0===n||n.call(o,t);break}case"PartialTranscript":b.created=new Date(b.created),null===(a=(r=this.listeners).transcript)||void 0===a||a.call(r,b),null===(d=(c=this.listeners)["transcript.partial"])||void 0===d||d.call(c,b);break;case"FinalTranscript":b.created=new Date(b.created),null===(u=(h=this.listeners).transcript)||void 0===u||u.call(h,b),null===(m=(p=this.listeners)["transcript.final"])||void 0===m||m.call(p,b);break;case"SessionInformation":null===(w=(f=this.listeners).session_information)||void 0===w||w.call(f,b);break;case"SessionTerminated":null===(v=this.sessionTerminatedResolve)||void 0===v||v.call(this)}}}))}sendAudio(e){this.send(e)}stream(){return new s({write:e=>{this.sendAudio(e)}})}forceEndUtterance(){this.send('{"force_end_utterance":true}')}configureEndUtteranceSilenceThreshold(e){this.send(`{"end_utterance_silence_threshold":${e}}`)}send(e){if(!this.socket||this.socket.readyState!==this.socket.OPEN)throw new Error("Socket is not open for communication");this.socket.send(e)}close(){return t(this,arguments,void 0,(function*(e=!0){var t;if(this.socket){if(this.socket.readyState===this.socket.OPEN)if(e){const e=new Promise((e=>{this.sessionTerminatedResolve=e}));this.socket.send(c),yield e}else this.socket.send(c);(null===(t=this.socket)||void 0===t?void 0:t.removeAllListeners)&&this.socket.removeAllListeners(),this.socket.close()}this.listeners={},this.socket=void 0}))}}e.RealtimeService=class extends d{},e.RealtimeTranscriber=d}));