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Update express-call-control to Typescript (#25)
* update express-call-control to Typescript * update instructions * update package deps
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| name: CI express-call-control | ||
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| on: | ||
| push: | ||
| branches: [master] | ||
| paths: | ||
| - "express-call-control/**" | ||
| pull_request: | ||
| branches: [master] | ||
| paths: | ||
| - "express-call-control/**" | ||
|
|
||
| jobs: | ||
| type-check: | ||
| runs-on: ubuntu-latest | ||
| defaults: | ||
| run: | ||
| working-directory: express-call-control | ||
| strategy: | ||
| matrix: | ||
| node-version: [18.x, 20.x, 22.x] | ||
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| steps: | ||
| - uses: actions/checkout@v4 | ||
| - name: Use Node.js ${{ matrix.node-version }} | ||
| uses: actions/setup-node@v4 | ||
| with: | ||
| node-version: ${{ matrix.node-version }} | ||
| - run: npm ci | ||
| - run: npm run type-check |
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| module.exports = { | ||
| parserOptions: { | ||
| ecmaVersion: 6, | ||
| }, | ||
| rules: { | ||
| 'new-cap': 'off', | ||
| 'no-console': 'off', | ||
| }, | ||
| }; |
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| @@ -0,0 +1 @@ | ||
| 20.17.0 |
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| nodejs 20.17.0 | ||
| npm 10.8.1 |
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| // Telnyx Call Control Demo | ||
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| // Set up environmental variables from .env file | ||
| import "dotenv/config"; | ||
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| // Library Requirements | ||
| import express from "express"; | ||
| import bodyParser from "body-parser"; | ||
| import nunjucks from "nunjucks"; | ||
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| // Set up telnyx library with user API Key | ||
| import Telnyx from "telnyx"; | ||
| const telnyx = new Telnyx(process.env.TELNYX_API_KEY || ""); | ||
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|
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| // Fire up express app and settings | ||
| const app = express(); | ||
| app.use(express.json()); | ||
| app.use( | ||
| bodyParser.urlencoded({ | ||
| extended: true, | ||
| }) | ||
| ); | ||
|
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| // Set default express engine and extension | ||
| app.engine("html", nunjucks.render); | ||
| app.set("view engine", "html"); | ||
|
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| // configure nunjucks engine | ||
| nunjucks.configure("templates/views", { | ||
| autoescape: true, | ||
| express: app, | ||
| }); | ||
|
|
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| // Simple page that can send a phone call | ||
| app.get("/", function (request, response) { | ||
| response.render("messageform"); | ||
| }); | ||
|
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| app.post("/outbound", async (request, response) => { | ||
| const to_number = request.body.to_number; | ||
|
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| try { | ||
| const { data: call } = await telnyx.calls.create({ | ||
| connection_id: process.env.TELNYX_CONNECTION_ID || "", | ||
| to: to_number, | ||
| from: process.env.TELNYX_NUMBER || "", | ||
| timeout_secs: 0, | ||
| time_limit_secs: 0, | ||
| answering_machine_detection: "premium", | ||
| media_encryption: "disabled", | ||
| sip_transport_protocol: "UDP", | ||
| stream_track: "inbound_track", | ||
| send_silence_when_idle: false, | ||
| webhook_url_method: "POST", | ||
| record_channels: "single", | ||
| record_format: "wav", | ||
| record_max_length: 0, | ||
| record_timeout_secs: 0, | ||
| enable_dialogflow: false, | ||
| transcription: false, | ||
| }); | ||
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| response.render("messagesuccess"); | ||
| console.log(call?.call_control_id); | ||
| } catch (e) { | ||
| response.send(e); | ||
| } | ||
| }); | ||
|
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| type CallControlEvent = | ||
| | Telnyx.events.CallHangupEvent | ||
| | Telnyx.events.CallInitiatedEvent | ||
| | Telnyx.events.CallAnsweredEvent | ||
| | Telnyx.events.CallSpeakEndedEvent; | ||
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| app.post("/call_control", async (request, response) => { | ||
| response.sendStatus(200); | ||
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| const data = (request.body as CallControlEvent).data!; | ||
| try { | ||
| const callControlId = data.payload!.call_control_id!; | ||
|
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| if (data.event_type == "call.hangup") { | ||
| console.log("Call has ended."); | ||
| } else if (data.event_type == "call.initiated") { | ||
| telnyx.calls.answer(callControlId, { | ||
| stream_track: "inbound_track", | ||
| send_silence_when_idle: false, | ||
| webhook_url_method: "POST", | ||
| transcription: false, | ||
| }); | ||
| } else if (data.event_type == "call.answered") { | ||
| telnyx.calls.speak(callControlId, { | ||
| payload: | ||
| "Hello, Telnyx user! Welcome to this call control demonstration.", | ||
| voice: "male", | ||
| language: "en-US", | ||
| payload_type: "text", | ||
| service_level: "premium", | ||
| }); | ||
| } else if (data.event_type == "call.speak.ended") { | ||
| console.log("Speak has ended."); | ||
| telnyx.calls.hangup(callControlId, {}); | ||
| } | ||
| } catch (error) { | ||
| console.log("Error issuing call command"); | ||
| console.log(error); | ||
| } | ||
| }); | ||
|
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| // Fire up the app on port specified in env | ||
| app.listen(process.env.TELNYX_APP_PORT); | ||
| console.log(`Server listening on port ${process.env.TELNYX_APP_PORT}`); |
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