Flutter Implementation

1. Install Flutter SDK from flutter.dev
2. Create new project: flutter create chatbot_app
3. Add http package: flutter pub add http
4. Implement API calls:

Example: Chat Endpoint

import 'dart:convert';
import 'package:http/http.dart' as http;

Future<Map<String, dynamic>> sendMessage(String message, {String? sessionId}) async {
  final url = Uri.parse('https://your-api.com/chat');
  final headers = {'Content-Type': 'application/json'};
  final body = json.encode({
    'message': message,
    if (sessionId != null) 'session_id': sessionId,
  });

  try {
    final response = await http.post(url, headers: headers, body: body);
    if (response.statusCode == 200) {
      return json.decode(response.body);
    } else {
      throw Exception('Failed to get bot response');
    }
  } catch (e) {
    throw Exception('Network error: $e');
  }
}

Example: Teach Endpoint

import 'dart:convert';
import 'package:http/http.dart' as http;

Future<void> teachBot(String question, String answer, {String? context}) async {
  final url = Uri.parse('https://your-api.com/teach');
  final headers = {'Content-Type': 'application/json'};
  final body = json.encode({
    'question': question,
    'answer': answer,
    if (context != null) 'context': context,
  });

  try {
    final response = await http.post(url, headers: headers, body: body);
    if (response.statusCode != 200) {
      throw Exception('Failed to teach bot');
    }
  } catch (e) {
    throw Exception('Network error: $e');
  }
}

import axios from 'axios';

const API_BASE_URL = 'https://your-api.com';

export const chatWithBot = async (message, sessionId = null) => {
  try {
    const response = await axios.post(`${API_BASE_URL}/chat`, {
      message,
      ...(sessionId && { session_id: sessionId })
    });
    return response.data;
  } catch (error) {
    console.error('Chat error:', error);
    throw error;
  }
};

export const teachBot = async (question, answer, context = null) => {
  try {
    await axios.post(`${API_BASE_URL}/teach`, {
      question,
      answer,
      ...(context && { context })
    });
  } catch (error) {
    console.error('Teaching error:', error);
    throw error;
  }
};

export const getKnowledge = async (search = '', limit = 10, page = 1) => {
  try {
    const response = await axios.get(`${API_BASE_URL}/knowledge`, {
      params: { search, limit, page }
    });
    return response.data;
  } catch (error) {
    console.error('Knowledge error:', error);
    throw error;
  }
};

import axios from 'axios';
import { Alert } from 'react-native';

const API_BASE_URL = 'https://your-api.com';

const handleError = (error) => {
  console.error('API Error:', error);
  Alert.alert('Error', error.message || 'Something went wrong');
  throw error;
};

export const chatWithBot = async (message, sessionId = null) => {
  try {
    const response = await axios.post(`${API_BASE_URL}/chat`, {
      message,
      ...(sessionId && { session_id: sessionId })
    });
    return response.data;
  } catch (error) {
    return handleError(error);
  }
};

export const teachBot = async (question, answer, context = null) => {
  try {
    const response = await axios.post(`${API_BASE_URL}/teach`, {
      question,
      answer,
      ...(context && { context })
    });
    Alert.alert('Success', 'Bot learned successfully!');
    return response.data;
  } catch (error) {
    return handleError(error);
  }
};

import okhttp3.*;
import com.google.gson.Gson;
import java.io.IOException;

public class ChatbotApiClient {
    private final OkHttpClient client = new OkHttpClient();
    private final Gson gson = new Gson();
    private final String baseUrl = "https://your-api.com";

    public ChatResponse chat(String message, String sessionId) throws IOException {
        ChatRequest request = new ChatRequest(message, sessionId);
        RequestBody body = RequestBody.create(
            gson.toJson(request), 
            MediaType.parse("application/json")
        );
        
        Request httpRequest = new Request.Builder()
            .url(baseUrl + "/chat")
            .post(body)
            .build();

        try (Response response = client.newCall(httpRequest).execute()) {
            if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
            return gson.fromJson(response.body().string(), ChatResponse.class);
        }
    }

    public TeachResponse teach(String question, String answer, String context) throws IOException {
        TeachRequest request = new TeachRequest(question, answer, context);
        RequestBody body = RequestBody.create(
            gson.toJson(request), 
            MediaType.parse("application/json")
        );
        
        Request httpRequest = new Request.Builder()
            .url(baseUrl + "/teach")
            .post(body)
            .build();

        try (Response response = client.newCall(httpRequest).execute()) {
            if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);
            return gson.fromJson(response.body().string(), TeachResponse.class);
        }
    }

    // Request and response classes
    private static class ChatRequest {
        String message;
        String session_id;

        ChatRequest(String message, String sessionId) {
            this.message = message;
            this.session_id = sessionId;
        }
    }

    private static class TeachRequest {
        String question;
        String answer;
        String context;

        TeachRequest(String question, String answer, String context) {
            this.question = question;
            this.answer = answer;
            this.context = context;
        }
    }

    public static class ChatResponse {
        public String status;
        public String user_message;
        public String bot_response;
        public String session_id;
    }

    public static class TeachResponse {
        public String status;
        public String message;
        public String question;
        public String answer;
        public String timestamp;
    }
}

package chatbot

import (
    "bytes"
    "encoding/json"
    "errors"
    "net/http"
)

type Client struct {
    BaseURL    string
    HTTPClient *http.Client
}

func NewClient(baseURL string) *Client {
    return &Client{
        BaseURL:    baseURL,
        HTTPClient: &http.Client{},
    }
}

type ChatRequest struct {
    Message   string `json:"message"`
    SessionID string `json:"session_id,omitempty"`
}

type ChatResponse struct {
    Status      string `json:"status"`
    UserMessage string `json:"user_message"`
    BotResponse string `json:"bot_response"`
    SessionID   string `json:"session_id"`
}

func (c *Client) Chat(message, sessionID string) (*ChatResponse, error) {
    reqBody := ChatRequest{
        Message:   message,
        SessionID: sessionID,
    }
    
    resp, err := c.doRequest("/chat", reqBody)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        return nil, errors.New("unexpected status code")
    }

    var chatResp ChatResponse
    if err := json.NewDecoder(resp.Body).Decode(&chatResp); err != nil {
        return nil, err
    }

    return &chatResp, nil
}

type TeachRequest struct {
    Question string `json:"question"`
    Answer   string `json:"answer"`
    Context  string `json:"context,omitempty"`
}

func (c *Client) Teach(question, answer, context string) error {
    reqBody := TeachRequest{
        Question: question,
        Answer:   answer,
        Context:  context,
    }
    
    resp, err := c.doRequest("/teach", reqBody)
    if err != nil {
        return err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        return errors.New("teaching failed")
    }

    return nil
}

func (c *Client) doRequest(endpoint string, body interface{}) (*http.Response, error) {
    jsonBody, err := json.Marshal(body)
    if err != nil {
        return nil, err
    }

    req, err := http.NewRequest("POST", c.BaseURL+endpoint, bytes.NewBuffer(jsonBody))
    if err != nil {
        return nil, err
    }

    req.Header.Set("Content-Type", "application/json")
    return c.HTTPClient.Do(req)
}