nodejs express server img src - Javascript(1)

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📜 nodejs express server img src - Javascript(1)

📅 最后修改于: 2023-12-03 15:03:15.752000 🧑 作者: Mango

Node.js Express Server for Serving Image Source (img src)

In this tutorial, we will explore how to create a Node.js Express server that can serve an image source (img src) to an HTML document. We will use the express package to create and run the server.

Prerequisites

Before we start, make sure you have the following software installed in your system:

Node.js
NPM (Node Package Manager)

Setting up the Project

To create a new Node.js project, run the following command in your terminal:

mkdir node-express-server-img-src
cd node-express-server-img-src
npm init

This will create and initialize a new Node.js project in the node-express-server-img-src directory.

Next, install the express package as a dependency in your project:

npm install express --save

Creating the Server

Now that we have set up our project, we can create the Node.js Express server.

Create a new file called server.js in the root directory of your project, and paste the following code in it:

const express = require('express')
const app = express()
const port = 3000

// Serve the index.html file
app.get('/', (req, res) => {
  res.sendFile(__dirname + '/index.html')
})

// Serve the image file
app.get('/image', (req, res) => {
  res.sendFile(__dirname + '/public/image.png')
})

// Start the server
app.listen(port, () => {
  console.log(`Server running at http://localhost:${port}`)
})

This code sets up the server on port 3000, and serves the index.html file when the root URL is accessed. It also serves the image.png file when the /image URL is accessed.

Creating the HTML Document

Create a new file called index.html in the root directory of your project, and paste the following code in it:

<!DOCTYPE html>
<html>
  <head>
    <title>Node.js Express Server (img src)</title>
  </head>
  <body>
    <h1>Node.js Express Server</h1>
    <img src="/image" alt="Image">
  </body>
</html>

This HTML document includes an image tag with the img tag pointing to the /image URL, where the image file is served from the server.

Serving the Image File

Create a new directory called public in the root directory of your project, and copy an image file called image.png into it. This will be the image that is served by the server.

Starting the Server

Start the server by running the following command in your terminal:

node server.js

This will start the server and make it accessible at http://localhost:3000.

Conclusion

In this tutorial, we learned how to create a Node.js Express server that can serve an image source (img src) to an HTML document. We used the express package to create and run the server, and served the image file as a static file using the express.static middleware.

import requests

url = 'https://api.openai.com/v1/engines/davinci-codex/completions'

prompt = "Python code to get the first 10 even numbers"
temperature = 0.7
max_tokens = 60

data = {
        "prompt": prompt,
        "temperature": temperature,
        "max_tokens": max_tokens,
        "stop": None
        }

headers = {
    "Content-Type": "application/json",
    "Authorization": "Bearer YOUR_API_KEY"
}

response = requests.post(url, json=data, headers=headers)

print(response.json()["choices"][0]["text"])

This is an example Python code snippet that can be used to request AI-generated content from the OpenAI API.