🔑

💬 LanguageChat APIv1

Real-time messaging and video

📥 Download OpenAPI Spec

Messages

GET/chat/rooms/{sessionId}/messagesList messages

Retrieve message history for a session

// Node.js (Express backend example)
const express = require("express");
const app = express();

const NL_API_KEY = process.env.NOWLANGUAGE_API_KEY;

app.get("/book-interpreter", async (req, res) => {
  const response = await fetch("https://api.nowlanguage.com/v1/chat/rooms/{sessionId}/messages", {
    method: "GET",
    headers: {
      "Authorization": "Bearer " + NL_API_KEY,
      "Content-Type": "application/json"
    }
  });
  const data = await response.json();
  res.json(data);
});
Response200 OK
{ "success": true, "message": "Operation completed successfully" }
POST/chat/rooms/{sessionId}/messagesSend a message

Send a text message in a session. ## Translation Set `translate: true` to automatically translate the message to the other participant's language. 

// Node.js (Express backend example)
const express = require("express");
const app = express();

const NL_API_KEY = process.env.NOWLANGUAGE_API_KEY;

app.get("/book-interpreter", async (req, res) => {
  const response = await fetch("https://api.nowlanguage.com/v1/chat/rooms/{sessionId}/messages", {
    method: "POST",
    headers: {
      "Authorization": "Bearer " + NL_API_KEY,
      "Content-Type": "application/json"
    }
  });
  const data = await response.json();
  res.json(data);
});
Response200 OK
{ "success": true, "message": "Operation completed successfully" }

Rooms

POST/chat/rooms/{sessionId}/videoStart video call

Initialize or join a video call for the session

// Node.js (Express backend example)
const express = require("express");
const app = express();

const NL_API_KEY = process.env.NOWLANGUAGE_API_KEY;

app.get("/book-interpreter", async (req, res) => {
  const response = await fetch("https://api.nowlanguage.com/v1/chat/rooms/{sessionId}/video", {
    method: "POST",
    headers: {
      "Authorization": "Bearer " + NL_API_KEY,
      "Content-Type": "application/json"
    }
  });
  const data = await response.json();
  res.json(data);
});
Response200 OK
{ "success": true, "message": "Operation completed successfully" }

Transcripts

GET/chat/rooms/{sessionId}/transcriptsGet session transcript

Retrieve the full transcript of a completed session. Available formats: - `json` - Structured message data - `text` - Plain text transcript - `pdf` - Formatted PDF document 

// Node.js (Express backend example)
const express = require("express");
const app = express();

const NL_API_KEY = process.env.NOWLANGUAGE_API_KEY;

app.get("/book-interpreter", async (req, res) => {
  const response = await fetch("https://api.nowlanguage.com/v1/chat/rooms/{sessionId}/transcripts", {
    method: "GET",
    headers: {
      "Authorization": "Bearer " + NL_API_KEY,
      "Content-Type": "application/json"
    }
  });
  const data = await response.json();
  res.json(data);
});
Response200 OK
{ "success": true, "message": "Operation completed successfully" }

Real-time

GET/chat/connectWebSocket connection info

Get WebSocket connection details for real-time updates. ## Events | Event | Description | |-------|-------------| | `message.new` | New message received | | `message.translated` | Translation completed | | `typing.start` | User started typing | | `typing.stop` | User stopped typing | | `participant.joined` | User joined room | | `participant.left` | User left room | | `video.started` | Video call started | | `video.ended` | Video call ended | ## Connection Example ```javascript const ws = new WebSocket('wss://realtime.nowlanguage.com'); ws.send(JSON.stringify({ type: 'subscribe', channel: 'session:sess_abc123', token: 'your_token' })); ws.onmessage = (event) => { const data = JSON.parse(event.data); console.log('Event:', data.type, data.payload); }; ``` 

// Node.js (Express backend example)
const express = require("express");
const app = express();

const NL_API_KEY = process.env.NOWLANGUAGE_API_KEY;

app.get("/book-interpreter", async (req, res) => {
  const response = await fetch("https://api.nowlanguage.com/v1/chat/connect", {
    method: "GET",
    headers: {
      "Authorization": "Bearer " + NL_API_KEY,
      "Content-Type": "application/json"
    }
  });
  const data = await response.json();
  res.json(data);
});
Response200 OK
{ "success": true, "message": "Operation completed successfully" }