Farsight facilitates the fetching and transformation of data from arbitrary sources into pre-defined structures, which can be further processed and serialised into other formats (such as JSON, YAML etc.).
A large amount of inspiration comes from the [GoStruct](https://github.com/bfontaine/gostruct) project.
## Usage
Farsight is very simple to use, and only exposes a single public method, `Fetch`. For example, this is the full package for a single-page HTML scraper:
if err := farsight.Fetch(url, data, "html"); err != nil {
panic("Failed to fetch URL")
}
fmt.Println(data.Posts[0].Title) // Returns the first post's title.
}
```
Calling the `Fetch` method on the `Data` type fills each eligible field with the correct data, as matched by the specified CSS selectors.
## Overview
Data sourcing is handled via generic `source` types, that correspond to URIs passed to `farsight.Fetch` and allow for transparent use of different types of sources (such as local files, HTTP endpoints etc.).
Data transformation is handled via `parser` types, that rely on specific struct tag fields in order to fill the destination structures with the correct data. Thus, there is a direct relationship between the type of data the user expects to query against, and the `parser` type used.
## License
Farsight is licensed under the MIT license, the terms of which can be found in the included LICENSE file.
