hackn - A lightweight hacker news CLI tool.

hackn.sh

#!/usr/bin/env bash

NUM_OF_STORIES="$1"

getTopStoryIds(){
	curl -sL "https://hacker-news.firebaseio.com/v0/topstories.json" | tr -d '[]' | tr ',' '\n'
}

getStoryData(){
	storyID="$1"
	curl -sL "https://hacker-news.firebaseio.com/v0/item/${storyID}.json?print=pretty"
}

getTitle(){
	response="$1"
	title="$(echo "$response" | grep -E '^\s*"title"')"
	title="${title#*: }"
	title="${title#*\"}"
	title="${title%\"*}"
	echo "$title"
}

getURL(){
	response="$1"
	url="$(echo "$response" | grep -E '^\s*"url"')"
	url="${url#*: }"
	url="${url#*\"}"
	url="${url%\"*}"
	echo "$url"
}

main(){
	readonly TOP_STORY_IDS="$(getTopStoryIds)"
	num_of_stories=${NUM_OF_STORIES:=10}
	story_rank=1

	for story_id in $TOP_STORY_IDS; do
		story_data="$(getStoryData "$story_id")"
		if [ "$story_rank" -le $num_of_stories ]; then
			story_title="$(getTitle "$story_data")"
			story_URL="$(getURL "$story_data")"
			echo "[${story_rank}] ${story_title}"
			echo "    - ${story_URL}"
			echo ""
		else
			exit 0
		fi
		story_rank=$((story_rank+1))
	done

}

main