<br />
<p align="center">
<picture>
<source media="(prefers-color-scheme: dark)" srcset=".github/assets/logo-alt.png">
<source media="(prefers-color-scheme: light)" srcset=".github/assets/logo.png">
<img width="200" src=".github/assets/logo.png">
</picture>
</p>
<br />
<p align="center">
Flyscrape is a command-line web scraping tool designed for those without <br />advanced programming skills, enabling precise extraction of website data.
</p>
<br />
<p align="center">
<a href="#installation">Installation</a> · <a href="https://flyscrape.com/docs/getting-started">Documentation</a> · <a href="https://github.com/philippta/flyscrape/releases">Releases</a>
</p>
## Demo
<a href="https://www.youtube.com/watch?v=Yj11v4n9JHA">
<img src=".github/assets/flyscrape-demo.jpg" style="border-radius: 6px">
</a>
## Features
- **Standalone:** Flyscrape comes as a single binary executable.
- **jQuery-like:** Extract data from HTML pages with a familiar API.
- **Scriptable:** Use JavaScript to write your data extraction logic.
- **System Cookies:** Give Flyscrape access to your browsers cookie store.
- **Browser Mode:** Render JavaScript heavy pages using a headless Browser.
## Overview
- [Example](#example)
- [Installation](#installation)
- [Recommended](#recommended)
- [Homebrew](#homebrew)
- [Pre-compiled binary](#pre-compiled-binary)
- [Compile from source](#compile-from-source)
- [Usage](#usage)
- [Configuration](#configuration)
- [Query API](#query-api)
- [Flyscrape API](#flyscrape-api)
- [Document Parsing](#document-parsing)
- [File Downloads](#file-downloads)
- [Issues and suggestions](#issues-and-suggestions)
## Example
This example scrapes the first few pages form Hacker News, specifically the New, Show and Ask sections.
```javascript
export const config = {
urls: [
"https://news.ycombinator.com/new",
"https://news.ycombinator.com/show",
"https://news.ycombinator.com/ask",
],
// Cache request for later.
cache: "file",
// Enable JavaScript rendering.
browser: true,
headless: false,
// Follow pagination 5 times.
depth: 5,
follow: ["a.morelink[href]"],
}
export default function ({ doc, absoluteURL }) {
const title = doc.find("title");
const posts = doc.find(".athing");
return {
title: title.text(),
posts: posts.map((post) => {
const link = post.find(".titleline > a");
return {
title: link.text(),
url: link.attr("href"),
};
}),
}
}
```
```bash
$ flyscrape run hackernews.js
[
{
"url": "https://news.ycombinator.com/new",
"data": {
"title": "New Links | Hacker News",
"posts": [
{
"title": "Show HN: flyscrape - An standalone and scriptable web scraper",
"url": "https://flyscrape.com/"
},
...
]
}
}
]
```
Check out the [examples folder](examples) for more detailed examples.
## Installation
### Recommended
The easiest way to install `flyscrape` is via its install script.
```bash
curl -fsSL https://flyscrape.com/install | bash
```
### Homebrew
For macOS users `flyscrape` is also available via homebrew:
```bash
brew install flyscrape
```
### Pre-compiled binary
`flyscrape` is available for MacOS, Linux and Windows as a downloadable binary from the [releases page](https://github.com/philippta/flyscrape/releases).
### Compile from source
To compile flyscrape from source, follow these steps:
1. Install Go: Make sure you have Go installed on your system. If not, you can download it from [https://go.dev/](https://go.dev/).
2. Install flyscrape: Open a terminal and run the following command:
```bash
go install github.com/philippta/flyscrape/cmd/flyscrape@latest
```
## Usage
```
Usage:
flyscrape run SCRIPT [config flags]
Examples:
# Run the script.
$ flyscrape run example.js
# Set the URL as argument.
$ flyscrape run example.js --url "http://other.com"
# Enable proxy support.
$ flyscrape run example.js --proxies "http://someproxy:8043"
# Follow paginated links.
$ flyscrape run example.js --depth 5 --follow ".next-button > a"
# Set the output format to ndjson.
$ flyscrape run example.js --output.format ndjson
# Write the output to a file.
$ flyscrape run example.js --output.file results.json
```
## Configuration
Below is an example scraping script that showcases the capabilities of flyscrape. For a full documentation of all configuration options, visit the [documentation page](docs/readme.md#configuration).
```javascript
export const config = {
// Specify the URL to start scraping from.
url: "https://example.com/",
// Specify the multiple URLs to start scraping from. (default = [])
urls: [
"https://anothersite.com/",
"https://yetanother.com/",
],
// Enable rendering with headless browser. (default = false)
browser: true,
// Specify if browser should be headless or not. (default = true)
headless: false,
// Specify how deep links should be followed. (default = 0, no follow)
depth: 5,
// Speficy the css selectors to follow. (default = ["a[href]"])
follow: [".next > a", ".related a"],
// Specify the allowed domains. ['*'] for all. (default = domain from url)
allowedDomains: ["example.com", "anothersite.com"],
// Specify the blocked domains. (default = none)
blockedDomains: ["somesite.com"],
// Specify the allowed URLs as regex. (default = all allowed)
allowedURLs: ["/posts", "/articles/\d+"],
// Specify the blocked URLs as regex. (default = none)
blockedURLs: ["/admin"],
// Specify the rate in requests per minute. (default = no rate limit)
rate: 60,
// Specify the number of concurrent requests. (default = no limit)
concurrency: 1,
// Specify a single HTTP(S) proxy URL. (default = no proxy)
// Note: Not compatible with browser mode.
proxy: "http://someproxy.com:8043",
// Specify multiple HTTP(S) proxy URLs. (default = no proxy)
// Note: Not compatible with browser mode.
proxies: [
"http://someproxy.com:8043",
"http://someotherproxy.com:8043",
],
// Enable file-based request caching. (default = no cache)
cache: "file",
// Specify the HTTP request header. (default = none)
headers: {
"Authorization": "Bearer ...",
"User-Agent": "Mozilla ...",
},
// Use the cookie store of your local browser. (default = off)
// Options: "chrome" | "edge" | "firefox"
cookies: "chrome",
// Specify the output options.
output: {
// Specify the output file. (default = stdout)
file: "results.json",
// Specify the output format. (default = json)
// Options: "json" | "ndjson"
format: "json",
},
};
export default function ({ doc, url, absoluteURL }) {
// doc - Contains the parsed HTML document
// url - Contains the scraped URL
// absoluteURL(...) - Transforms relative URLs into absolute URLs
}
```
## Query API
```javascript
// <div class="element" foo="bar">Hey</div>
const el = doc.find(".element")
el.text() // "Hey"
el.html() // `<div class="element">Hey</div>`
el.attr("foo") // "bar"
el.hasAttr("foo") // true
el.hasClass("element") // true
// <ul>
// <li class="a">Item 1</li>
// <li>Item 2</li>
// <li>Item 3</li>
// </ul>
const list = doc.find("ul")
list.children() // [<li class="a">Item 1</li>, <li>Item 2</li>, <li>Item 3</li>]
const items = list.find("li")
items.length() // 3
items.first() // <li>Item 1</li>
items.last() // <li>Item 3</li>
items.get(1) // <li>Item 2</li>
items.get(1).prev() // <li>Item 1</li>
items.get(1).next() // <li>Item 3</li>
items.get(1).parent() // <ul>...</ul>
items.get(1).siblings() // [<li class="a">Item 1</li>, <li>Item 2</li>, <li>Item 3</li>]
items.map(item => item.text()) // ["Item 1", "Item 2", "Item 3"]
items.filter(item => item.hasClass("a")) // [<li class="a">Item 1</li>]
```
## Flyscrape API
### Document Parsing
```javascript
import { parse } from "flyscrape";
const doc = parse(`<div class="foo">bar</div>`);
const text = doc.find(".foo").text();
```
### File Downloads
```javascript
import { download } from "flyscrape/http";
download("http://example.com/image.jpg") // downloads as "image.jpg"
download("http://example.com/image.jpg", "other.jpg") // downloads as "other.jpg"
download("http://example.com/image.jpg", "dir/") // downloads as "dir/image.jpg"
// If the server offers a filename via the Content-Disposition header and no
// destination filename is provided, Flyscrape will honor the suggested filename.
// E.g. `Content-Disposition: attachment; filename="archive.zip"`
download("http://example.com/generate_archive.php", "dir/") // downloads as "dir/archive.zip"
```
## Issues and Suggestions
If you encounter any issues or have suggestions for improvement, please [submit an issue](https://github.com/philippta/flyscrape/issues).