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Description

Sitemap Generator written in Go

Programming language: Go
Tags: Utilities     Command Line     Tools    

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README

Scrape Go Report Card

Scrape is minimalistic depth controlled web scraping project. It can be used as command-line tool or integrate it in your project. Scrape also supports sitemap generation as an output.

Scrape Response

Once the Scraping is done on given URL, the API returns the following structure.

// Response holds the scrapped response
package scrape

import (
    "net/url"
    "regexp"
)

type Response struct {
    BaseURL      *url.URL            // starting url at maxDepth 0
    UniqueURLs   map[string]int      // UniqueURLs holds the map of unique urls we crawled and times each url is repeated
    URLsPerDepth map[int][]*url.URL  // URLsPerDepth holds urls found in each depth
    SkippedURLs  map[string][]string // SkippedURLs holds urls extracted from source urls but failed domainRegex (if given) and are invalid.
    ErrorURLs    map[string]error    // errorURLs holds details as to why reason the url was not crawled
    DomainRegex  *regexp.Regexp      // restricts crawling the urls to given domain
    MaxDepth     int                 // MaxDepth of crawl, -1 means no limit for maxDepth
    Interrupted  bool                // true if the scrapping was interrupted
}

Command line:

Installation:

go get github.com/vedhavyas/scrape/cmd/scrape/

Available command line options:

Usage of ./scrape:
 -domain-regex string(optional)
        Domain regex to limit crawls to. Defaults to base url domain
 -max-depth int(optional)
        Max depth to Crawl (default -1)
 -sitemap string(optional)
        File location to write sitemap to
 -url string(required)
        Starting URL (default "https://vedhavyas.com")

Output

Scrape supports 2 types of output.

  1. Printing all the above collected data to stdout from Response
  2. Generating a sitemap xml file(if passed) from the Response.

As a Package

Scrape can be integrated into any Go project through the given APIs. As a package, you will have access to the above mentioned Response and all the data in it. At this point, the following are the available APIs.

Start

func Start(ctx context.Context, url string) (resp *Response, err error)

Start will start the scrapping with no depth limit(-1) and base url domain

StartWithDepth

func StartWithDepth(ctx context.Context, url string, maxDepth int) (resp *Response, err error)

StartWithDepth will start the scrapping with given max depth and base url domain

StartWithDepthAndDomainRegex

func StartWithDepthAndDomainRegex(ctx context.Context, url string, maxDepth int, domainRegex string) (resp *Response, err error) 

StartWithDepthAndDomainRegex will start the scrapping with max depth and regex

StartWithRegex

func StartWithDomainRegex(ctx context.Context, url, domainRegex string) (resp *Response, err error)

StartWithRegex will start the scrapping with no depth limit(-1) and regex

Sitemap

func Sitemap(resp *Response, file string) error 

Sitemap generates a sitemap from the given response

Feedback and Contributions

  1. If you think something is missing, please feel free to raise an issue.
  2. If you would like to work on an open issue, feel free to announce yourself in issue's comments