A Go library that parses and deserializes HTML pages into structs using goquery and struct tags for web crawlers.
Pagser is a Go library that simplifies web scraping by parsing HTML pages and deserializing them into structured Go data types. It uses goquery for DOM traversal and a struct tag syntax to define parsing rules, reducing boilerplate code for extracting data from web pages. It is designed to streamline the development of crawlers and spiders.
Go developers building web crawlers, spiders, or data extraction tools who need to map HTML content to structured Go types efficiently. It is particularly suited for those already using or familiar with goquery or the Colly web crawling framework.
Developers choose Pagser for its declarative approach using struct tags, which minimizes manual parsing code, and its seamless integration with goquery and Colly. Its extensible function system and implicit type conversion further reduce development time for complex scraping tasks.
Pagser is a simple, extensible, configurable parse and deserialize html page to struct based on goquery and struct tags for golang crawler
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
Uses a simple struct tag syntax to define parsing rules, reducing boilerplate code for mapping HTML to Go types, as shown in the usage example with nested structs.
Supports built-in, extension, and custom functions, enabling flexible data extraction like splitting attributes or converting HTML to markdown via registered extensions.
Built on goquery, it works out-of-the-box with goquery-based projects like Colly, allowing easy adoption in existing crawlers without rewriting traversal logic.
Automatically converts extracted strings to Go types like int, float64, and slices, simplifying data handling without manual parsing, as demonstrated in the examples.
The use of reflection for parsing struct tags and implicit type conversion can introduce performance penalties compared to direct goquery usage, especially in high-throughput scraping scenarios.
While the struct tag grammar is concise, mastering it for complex selectors and custom functions requires understanding both Pagser's syntax and goquery, which can be unintuitive for new users.
As a niche library, Pagser has fewer third-party extensions and community resources compared to larger scraping tools, which may hinder troubleshooting and advanced use cases.