From b04da37aed8f6c1805f04892e9e94fc0b0090ea5 Mon Sep 17 00:00:00 2001 From: wpngai Date: Mon, 3 Mar 2025 16:35:52 +0800 Subject: [PATCH] add the Simple Agent Example Project --- URL_Database_project/ai_agent/.gitignore | 2 + URL_Database_project/ai_agent/app.py | 89 ++ URL_Database_project/ai_agent/app2.py | 102 ++ .../backend_server/.gitignore | 2 + URL_Database_project/backend_server/app.js | 303 ++++++ .../backend_server/package-lock.json | 992 ++++++++++++++++++ .../backend_server/package.json | 18 + URL_Database_project/backend_server/readme | 54 + .../csv_import_postgres/.gitignore | 2 + .../csv_import_postgres/app.js | 94 ++ .../csv_import_postgres/create_table.txt | 7 + .../csv_import_postgres/package-lock.json | 194 ++++ .../csv_import_postgres/package.json | 19 + .../csv_import_postgres/test_data.csv | 33 + 14 files changed, 1911 insertions(+) create mode 100644 URL_Database_project/ai_agent/.gitignore create mode 100644 URL_Database_project/ai_agent/app.py create mode 100644 URL_Database_project/ai_agent/app2.py create mode 100644 URL_Database_project/backend_server/.gitignore create mode 100644 URL_Database_project/backend_server/app.js create mode 100644 URL_Database_project/backend_server/package-lock.json create mode 100644 URL_Database_project/backend_server/package.json create mode 100644 URL_Database_project/backend_server/readme create mode 100644 URL_Database_project/csv_import_postgres/.gitignore create mode 100644 URL_Database_project/csv_import_postgres/app.js create mode 100644 URL_Database_project/csv_import_postgres/create_table.txt create mode 100644 URL_Database_project/csv_import_postgres/package-lock.json create mode 100644 URL_Database_project/csv_import_postgres/package.json create mode 100644 URL_Database_project/csv_import_postgres/test_data.csv diff --git a/URL_Database_project/ai_agent/.gitignore b/URL_Database_project/ai_agent/.gitignore new file mode 100644 index 0000000..2d7ec5c --- /dev/null +++ b/URL_Database_project/ai_agent/.gitignore @@ -0,0 +1,2 @@ +.env +node_modules/ diff --git a/URL_Database_project/ai_agent/app.py b/URL_Database_project/ai_agent/app.py new file mode 100644 index 0000000..5ca7632 --- /dev/null +++ b/URL_Database_project/ai_agent/app.py @@ -0,0 +1,89 @@ +from typing import Optional +import requests + +from smolagents.agents import ToolCallingAgent +from smolagents import CodeAgent, HfApiModel, tool +from huggingface_hub import login +from smolagents import LiteLLMModel + +from dotenv import load_dotenv +import os + +# load .env file +load_dotenv() + +api_key = os.environ.get('API_KEY') + +#print(api_key) +login(api_key) + +# Select LLM engine to use! +model = HfApiModel() +# model = LiteLLMModel( +# model_id="ollama_chat/llama3.1", +# api_base="http://localhost:11434", # replace with remote open-ai compatible server if necessary +# #api_key="your-api-key", # replace with API key if necessary +# #num_ctx=8192, # ollama default is 2048 which will often fail horribly. 8192 works for easy tasks, more is better. Check https://huggingface.co/spaces/NyxKrage/LLM-Model-VRAM-Calculator to calculate how much VRAM this will need for the selected model. +# ) + + +@tool +def get_data(query: str) -> str: + """ + Fetches a data from the server. + Args: + query: data + Returns: + str: database data in JSON format + Raises: + requests.exceptions.RequestException: If there is an issue with the HTTP request. + """ + url = f"http://localhost:3000/{query}" + + try: + response = requests.get(url) + response.raise_for_status() + + data = response.json() + + return data + except requests.exceptions.RequestException as e: + return f"Error fetching data: {e}" + + +# result = get_data('latest_data') +# print(result) + +@tool +def get_latest_data() -> str: + """ + Fetches a data from the server. + Args: + query: data + Returns: + str: database data + Raises: + requests.exceptions.RequestException: If there is an issue with the HTTP request. + """ + url = f"http://localhost:3000/latest_data" + + try: + response = requests.get(url) + response.raise_for_status() + + data = response.json() + + return data + except requests.exceptions.RequestException as e: + return f"Error fetching data: {e}" + +# result = get_latest_data() +# print(result) + + +agent = ToolCallingAgent(tools=[get_data], model=model) +# agent = CodeAgent(tools=[get_latest_data], model=model) + + +agent.run("What is the latest data?") +# agent.run("What is the value x in the latest data?") \ No newline at end of file diff --git a/URL_Database_project/ai_agent/app2.py b/URL_Database_project/ai_agent/app2.py new file mode 100644 index 0000000..cac9157 --- /dev/null +++ b/URL_Database_project/ai_agent/app2.py @@ -0,0 +1,102 @@ +from typing import Optional +import requests + +from smolagents.agents import ToolCallingAgent +from smolagents import CodeAgent, HfApiModel, tool +from huggingface_hub import login +from smolagents import LiteLLMModel + +from dotenv import load_dotenv +import os + +# load .env file +load_dotenv() + +api_key = os.environ.get('API_KEY') + +#print(api_key) +login(api_key) + +# Select LLM engine to use! +model = HfApiModel() +# model = LiteLLMModel( +# model_id="ollama_chat/llama3.1", +# api_base="http://localhost:11434", # replace with remote open-ai compatible server if necessary +# #api_key="your-api-key", # replace with API key if necessary +# #num_ctx=8192, # ollama default is 2048 which will often fail horribly. 8192 works for easy tasks, more is better. Check https://huggingface.co/spaces/NyxKrage/LLM-Model-VRAM-Calculator to calculate how much VRAM this will need for the selected model. +# ) + + +@tool +def get_data(query: str) -> str: + """ + Fetches a data from the server. + Args: + query: data + Returns: + str: database data in JSON format + Raises: + requests.exceptions.RequestException: If there is an issue with the HTTP request. + """ + url = f"http://localhost:3000/{query}" + + try: + response = requests.get(url) + response.raise_for_status() + + data = response.json() + + return data + except requests.exceptions.RequestException as e: + return f"Error fetching data: {e}" + + +# result = get_data('latest_data') +# print(result) + +@tool +def get_latest_data() -> str: + """ + Fetches a data from the server. + Args: + query: data + Returns: + str: database data + Raises: + requests.exceptions.RequestException: If there is an issue with the HTTP request. + """ + url = f"http://localhost:3000/latest_data" + + try: + response = requests.get(url) + response.raise_for_status() + + data = response.json() + + return data + except requests.exceptions.RequestException as e: + return f"Error fetching data: {e}" + +# result = get_latest_data() +# print(result) + + +get_data_agent = ToolCallingAgent( + tools=[get_latest_data], + model=model, + name="get_data_agent", + description="This is an agent that get data from the server.", +) + +# agent = CodeAgent(tools=[get_latest_data], model=model) + +manager_agent = CodeAgent( + tools = [], + model = model, + managed_agents=[get_data_agent], +) + +# agent.run("What is the latest data?") +# agent.run("What is the value x in the latest data?") + +manager_agent.run("What is the value x in the latest data?") \ No newline at end of file diff --git a/URL_Database_project/backend_server/.gitignore b/URL_Database_project/backend_server/.gitignore new file mode 100644 index 0000000..2d7ec5c --- /dev/null +++ b/URL_Database_project/backend_server/.gitignore @@ -0,0 +1,2 @@ +.env +node_modules/ diff --git a/URL_Database_project/backend_server/app.js b/URL_Database_project/backend_server/app.js new file mode 100644 index 0000000..e5a17d1 --- /dev/null +++ b/URL_Database_project/backend_server/app.js @@ -0,0 +1,303 @@ +require('dotenv').config(); +const express = require('express'); +const { Pool } = require('pg'); + +// Install required packages +// npm install express pg + +const app = express(); +app.use(express.json()); + +// Configure PostgreSQL connection +const pool = new Pool({ + user: process.env.PGUSER, + host: process.env.PGHOST, + database: process.env.PGDATABASE, + password: process.env.PGPASSWORD, + port: process.env.PGPORT, +}); + + +// GET all records with pagination +app.get('/data', async (req, res) => { + console.log("Get all records with the table"); + try { + const page = parseInt(req.query.page) || 1; + const limit = parseInt(req.query.limit) || 10; + const offset = (page - 1) * limit; + + const query = { + text: 'SELECT * FROM test_db_table ORDER BY id LIMIT $1 OFFSET $2', + values: [limit, offset], + }; + + const result = await pool.query(query); + res.json(result.rows); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + +// GET record by ID +app.get('/data/:id', async (req, res) => { + console.log("Get record by ID"); + try { + const { id } = req.params; + const query = { + text: 'SELECT * FROM test_db_table WHERE id = $1', + values: [id], + }; + + const result = await pool.query(query); + if (result.rows.length === 0) { + return res.status(404).json({ message: 'Record not found' }); + } + res.json(result.rows[0]); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + +// POST new record +app.post('/data', async (req, res) => { + console.log("Post new record"); + try { + const { x, y, z } = req.body; + const query = { + text: 'INSERT INTO test_db_table(x, y, z) VALUES($1, $2, $3) RETURNING *', + values: [x, y, z], + }; + + const result = await pool.query(query); + res.status(201).json(result.rows[0]); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + +// PUT update record +app.put('/data/:id', async (req, res) => { + console.log("Update record by ID"); + try { + const { id } = req.params; + const { x, y, z } = req.body; + const query = { + text: 'UPDATE test_db_table SET x = $1, y = $2, z = $3 WHERE id = $4 RETURNING *', + values: [x, y, z, id], + }; + + const result = await pool.query(query); + if (result.rows.length === 0) { + return res.status(404).json({ message: 'Record not found' }); + } + res.json(result.rows[0]); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + +// DELETE record +app.delete('/data/:id', async (req, res) => { + console.log("Delete record by ID"); + try { + const { id } = req.params; + const query = { + text: 'DELETE FROM test_db_table WHERE id = $1 RETURNING *', + values: [id], + }; + + const result = await pool.query(query); + if (result.rows.length === 0) { + return res.status(404).json({ message: 'Record not found' }); + } + res.json({ message: 'Record deleted successfully' }); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + +// Advanced query endpoint with filtering and sorting +app.get('/data/search', async (req, res) => { + console.log("Advanced query endpoint with filtering and sorting"); + try { + const { + min_x, max_x, + min_y, max_y, + min_z, max_z, + start_time, end_time, + sort_by, order = 'ASC' + } = req.query; + + let conditions = []; + let values = []; + let valueIndex = 1; + + if (min_x) { + conditions.push(`x >= $${valueIndex++}`); + values.push(min_x); + } + if (max_x) { + conditions.push(`x <= $${valueIndex++}`); + values.push(max_x); + } + // Similar for y and z ranges + if (start_time) { + conditions.push(`time >= $${valueIndex++}`); + values.push(start_time); + } + if (end_time) { + conditions.push(`time <= $${valueIndex++}`); + values.push(end_time); + } + + const whereClause = conditions.length > 0 + ? 'WHERE ' + conditions.join(' AND ') + : ''; + + const orderClause = sort_by + ? `ORDER BY ${sort_by} ${order}` + : 'ORDER BY id'; + + const query = { + text: `SELECT * FROM test_db_table ${whereClause} ${orderClause}`, + values: values, + }; + + const result = await pool.query(query); + res.json(result.rows); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + + +// GET latest single record +app.get('/latest_data', async (req, res) => { + console.log("require the latest data on the database table"); + try { + const query = { + text: 'SELECT * FROM test_db_table ORDER BY time DESC LIMIT 1' + }; + + const result = await pool.query(query); + if (result.rows.length === 0) { + return res.status(404).json({ message: 'No records found' }); + } + res.json(result.rows[0]); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + + +// This will handle both "/latest_data" and "/latest data" +app.get('/latest%20data', async (req, res) => { + console.log("require the latest data on the database table (20%))"); + try { + const query = { + text: 'SELECT * FROM test_db_table ORDER BY time DESC LIMIT 1' + }; + + const result = await pool.query(query); + if (result.rows.length === 0) { + return res.status(404).json({ message: 'No records found' }); + } + res.json(result.rows[0]); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + +// GET latest N records +app.get('/latest_data/:count', async (req, res) => { + try { + const count = parseInt(req.params.count) || 1; + // Add a reasonable limit to prevent excessive requests + const safeCount = Math.min(count, 100); + + const query = { + text: 'SELECT * FROM test_db_table ORDER BY time DESC LIMIT $1', + values: [safeCount] + }; + + const result = await pool.query(query); + res.json(result.rows); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + + // GET latest data within a time window (e.g., last 5 minutes) +app.get('/latest_data/window', async (req, res) => { + try { + const minutes = parseInt(req.query.minutes) || 5; + // Add a reasonable limit to prevent excessive time windows + const safeMinutes = Math.min(minutes, 60); + + const query = { + text: ` + SELECT * FROM test_db_table + WHERE time >= NOW() - INTERVAL '${safeMinutes} minutes' + ORDER BY time DESC + ` + }; + + const result = await pool.query(query); + res.json(result.rows); + } catch (err) { + res.status(500).json({ error: err.message }); + } +}); + + // GET latest data with real-time updates using Server-Sent Events (SSE) + app.get('/latest_data/stream', async (req, res) => { + // Set headers for SSE + res.setHeader('Content-Type', 'text/event-stream'); + res.setHeader('Cache-Control', 'no-cache'); + res.setHeader('Connection', 'keep-alive'); + + // Send initial data + try { + const query = { + text: 'SELECT * FROM test_db_table ORDER BY time DESC LIMIT 1' + }; + const result = await pool.query(query); + if (result.rows.length > 0) { + res.write(`data: ${JSON.stringify(result.rows[0])}\n\n`); + } + } catch (err) { + console.error('Error fetching initial data:', err); + } + + // Set up polling interval (e.g., every 5 seconds) + const intervalId = setInterval(async () => { + try { + const query = { + text: 'SELECT * FROM test_db_table ORDER BY time DESC LIMIT 1' + }; + const result = await pool.query(query); + if (result.rows.length > 0) { + res.write(`data: ${JSON.stringify(result.rows[0])}\n\n`); + } + } catch (err) { + console.error('Error fetching update:', err); + } + }, 5000); + + // Clean up on client disconnect + req.on('close', () => { + clearInterval(intervalId); + }); + }); + + +// Error handling middleware +app.use((err, req, res, next) => { + console.error(err.stack); + res.status(500).json({ error: 'Something broke!' }); +}); + +const PORT = process.env.PORT || 3000; +app.listen(PORT, () => { + console.log(`Server is running on port ${PORT}`); +}); diff --git 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following endpoints: + +GET /data - Get all records with pagination + +Query params: page, limit + +GET /data/:id - Get a specific record by ID + +POST /data - Create a new record + +Body: { x, y, z } + +PUT /data/:id - Update an existing record + +Body: { x, y, z } + +DELETE /data/:id - Delete a record + +GET /data/search - Advanced search with filtering and sorting + +Query params: min_x, max_x, min_y, max_y, min_z, max_z, start_time, end_time, sort_by, order + + +Example usage: +# Get all records (first page) +curl http://localhost:3000/data + +# Get the single latest record +curl http://localhost:3000/latest_data + +# Get the latest 5 records +curl http://localhost:3000/latest_data/5 + +# Get all records from the last 10 minutes +curl http://localhost:3000/latest_data/window?minutes=10 + +# Get specific record +curl http://localhost:3000/data/1 + +# Create new record +curl -X POST http://localhost:3000/data \ + -H "Content-Type: application/json" \ + -d '{"x": 1.5, "y": 2.3, "z": 3.7}' + +# Update record +curl -X PUT http://localhost:3000/data/1 \ + -H "Content-Type: application/json" \ + -d '{"x": 1.6, "y": 2.4, "z": 3.8}' + +# Delete record +curl -X DELETE http://localhost:3000/data/1 + +# Advanced search +curl http://localhost:3000/data/search?min_x=1&max_x=5&sort_by=time&order=DESC diff --git a/URL_Database_project/csv_import_postgres/.gitignore b/URL_Database_project/csv_import_postgres/.gitignore new file mode 100644 index 0000000..2d7ec5c --- /dev/null +++ b/URL_Database_project/csv_import_postgres/.gitignore @@ -0,0 +1,2 @@ +.env +node_modules/ diff --git a/URL_Database_project/csv_import_postgres/app.js b/URL_Database_project/csv_import_postgres/app.js new file mode 100644 index 0000000..0bde9ae --- /dev/null +++ b/URL_Database_project/csv_import_postgres/app.js @@ -0,0 +1,94 @@ +require('dotenv').config(); +const fs = require('fs'); +const csv = require('csv-parser'); +const { Pool } = require('pg'); + +// Configure PostgreSQL connection +const pool = new Pool({ + user: process.env.PGUSER, + host: process.env.PGHOST, + database: process.env.PGDATABASE, + password: process.env.PGPASSWORD, + port: process.env.PGPORT, +}); + +async function importCSV(filePath) { + try { + const client = await pool.connect(); + + // Create a stream to read the CSV file + fs.createReadStream(filePath) + .pipe(csv()) + .on('data', async (row) => { + // Assuming your CSV has columns: x,y,z + // and the values are numeric + const query = { + text: 'INSERT INTO test_db_table(x, y, z) VALUES($1, $2, $3)', + values: [ + parseFloat(row.x), + parseFloat(row.y), + parseFloat(row.z) + ] + }; + + try { + await client.query(query); + } catch (err) { + console.error('Error inserting row:', err); + } + }) + .on('end', () => { + console.log('CSV import completed'); + client.release(); + }) + .on('error', (error) => { + console.error('Error reading CSV:', error); + client.release(); + }); + + } catch (err) { + console.error('Database connection error:', err); + } +} + +// For better performance with large files, here's an alternative +// implementation using COPY command: +async function importCSVWithCopy(filePath) { + const client = await pool.connect(); + try { + // Create a read stream from your CSV file + const fileStream = fs.createReadStream(filePath); + + // Use COPY command for bulk insert + const query = `COPY test_db_table(x, y, z) + FROM STDIN WITH (FORMAT csv, HEADER true)`; + + // Pipe the file stream to the PostgreSQL COPY command + const copyStream = client.query(require('pg-copy-streams').from(query)); + + fileStream.pipe(copyStream); + + return new Promise((resolve, reject) => { + copyStream.on('finish', () => { + console.log('CSV import completed'); + resolve(); + }); + copyStream.on('error', reject); + }); + + } catch (error) { + console.error('Error during import:', error); + } finally { + client.release(); + } +} + +// Usage example +const filePath = './test_data.csv'; + +// Choose one of the import methods: +// Method 1: Row by row import +importCSV(filePath); + +// Method 2: Bulk import using COPY (faster for large datasets) +// importCSVWithCopy(filePath); diff --git a/URL_Database_project/csv_import_postgres/create_table.txt b/URL_Database_project/csv_import_postgres/create_table.txt new file mode 100644 index 0000000..15d1413 --- /dev/null +++ b/URL_Database_project/csv_import_postgres/create_table.txt @@ -0,0 +1,7 @@ +CREATE TABLE test_db_table ( + id SERIAL PRIMARY KEY, + time TIMESTAMP DEFAULT CURRENT_TIMESTAMP, + x DOUBLE PRECISION, + y DOUBLE PRECISION, + z DOUBLE PRECISION +); diff --git a/URL_Database_project/csv_import_postgres/package-lock.json b/URL_Database_project/csv_import_postgres/package-lock.json new file mode 100644 index 0000000..336e754 --- /dev/null +++ b/URL_Database_project/csv_import_postgres/package-lock.json @@ -0,0 +1,194 @@ +{ + "name": "csv_import_postgres", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": 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