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restyvsmechanize

MIT 11 1 11,632
58.1 thousand (month) Aug 05 2024 v2.17.2(2026-02-14 22:43:18 ago)
4,440 8 6 MIT
Jul 25 2009 213.1 thousand (month) 2.14.0(2025-01-05 18:30:46 ago)

Resty is an HTTP and REST client library for Go. It is designed to be simple and easy to use, while still providing a lot of powerful features. One of the main benefits of using Resty is that it allows you to make HTTP requests with minimal boilerplate code, while still providing a lot of flexibility and control over the requests.

One of the key features of Resty is its use of chaining. This allows you to chain together multiple methods to build up a request, making the code more readable and easy to understand. For example, you can chain together the R().SetHeader("Accept", "application/json") method to set the Accept header and R().SetQueryParam("param1", "value1") to add a query parameter to the request.

Resty also provides a lot of convenience functions for making common types of requests, such as Get, Post, Put, and Delete. This can be useful if you need to make a simple request quickly and don't want to spend a lot of time configuring the request. Additionally, Resty also provides a way to set a timeout for the request, in case the server takes too long to respond.

Resty also supports HTTP/2 and advanced features like multipart file upload, request and response middlewares, request hooks, and many others.

Overall, Resty is a good choice if you're looking for a simple and easy-to-use HTTP client library for Go. It's a good fit for projects that don't require a lot of customization and need a quick way to make HTTP requests.

Mechanize is a Ruby library for automating interaction with websites. It automatically stores and sends cookies, follows redirects, and can submit forms — making it behave like a web browser without needing an actual browser engine.

Key features include:

  • Automatic cookie management Stores cookies received from servers and sends them back on subsequent requests, maintaining session state across multiple pages.
  • Form handling Can find, fill in, and submit HTML forms programmatically. Supports text inputs, selects, checkboxes, radio buttons, and file uploads.
  • Link following Navigate through pages by clicking links using their text content, CSS selectors, or href patterns.
  • History and back/forward Maintains a browsing history, allowing you to go back and forward through visited pages.
  • HTTP authentication Supports basic and digest HTTP authentication.
  • Proxy support Can route requests through HTTP proxies.
  • Redirect handling Automatically follows HTTP redirects (configurable).

Mechanize is one of the oldest and most established web interaction libraries in Ruby. It is best suited for scraping traditional server-rendered websites with forms and multi-page workflows. For JavaScript-heavy sites, a browser automation tool like Selenium or Playwright is recommended instead.

Highlights


popularproduction

Example Use


```go package main // establish session client client := resty.New() // set proxy for the session client.SetProxy("http://proxyserver:8888") // set retries client. // Set retry count to non zero to enable retries SetRetryCount(3). // You can override initial retry wait time. // Default is 100 milliseconds. SetRetryWaitTime(5 * time.Second). // MaxWaitTime can be overridden as well. // Default is 2 seconds. SetRetryMaxWaitTime(20 * time.Second). // SetRetryAfter sets callback to calculate wait time between retries. // Default (nil) implies exponential backoff with jitter SetRetryAfter(func(client *resty.Client, resp *resty.Response) (time.Duration, error) { return 0, errors.New("quota exceeded") }) // Make GET request resp, err := client.R(). // we can set query SetQueryParams(map[string]string{ "query": "foo", }). // and headers SetHeader("Accept", "application/json"). Get("https://httpbin.org/get") // Make Post request resp, err := client.R(). // JSON data SetHeader("Content-Type", "application/json"). SetBody(`{"username":"testuser", "password":"testpass"}`). // or Form Data SetFormData(map[string]string{ "username": "jeeva", "password": "mypass", }). Post("https://httpbin.org/post") // resty also support request and response middlewares // which allow easy modification of outgoing requests and incoming responses client.OnBeforeRequest(func(c *resty.Client, req *resty.Request) error { // Now you have access to Client and current Request object // manipulate it as per your need return nil // if its success otherwise return error }) // Registering Response Middleware client.OnAfterResponse(func(c *resty.Client, resp *resty.Response) error { // Now you have access to Client and current Response object // manipulate it as per your need return nil // if its success otherwise return error }) ```
```ruby require 'mechanize' agent = Mechanize.new # Navigate to a page page = agent.get('https://example.com') puts page.title # Find and click a link page = page.link_with(text: 'Products').click # Extract data from the page page.search('.product').each do |product| name = product.at('.name').text price = product.at('.price').text puts "#{name}: #{price}" end # Fill in and submit a login form login_page = agent.get('https://example.com/login') form = login_page.form_with(action: '/login') form['username'] = 'user@example.com' form['password'] = 'password123' dashboard = agent.submit(form) # Cookies are maintained automatically puts dashboard.title # "Dashboard" # Download a file agent.get('https://example.com/report.csv').save('report.csv') ```

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