crawlbaseDocs
Log in

LeetCode Solution

Parse a single LeetCode community solution post into structured JSON with its author, tags, write-up, extracted code blocks, and engagement counts. To try it with up to 5,000 free requests, start from the LeetCode Scraper API page.

Only the rendered code blocks are returned

Many posts advertise several languages but put the alternatives behind tabs that render one at a time. codeBlocks holds the blocks present in the write-up as served, so a post titled for three languages can come back with blocks in one.

API usage

Add &scraper=leetcode-solution to a Crawling API request. URL-encode the target URL in the url parameter.

curl 'https://api.crawlbase.com/?token=YOUR_TOKEN' \
  --data-urlencode 'url=https://leetcode.com/problems/two-sum/solutions/3619262/3-methods-c-java-python-beginner-friendl-x595/' \
  --data-urlencode 'scraper=leetcode-solution' -G
from crawlbase import CrawlingAPI

api = CrawlingAPI({'token': 'YOUR_TOKEN'})
res = api.get(
    'https://leetcode.com/problems/two-sum/solutions/3619262/3-methods-c-java-python-beginner-friendl-x595/',
    {'scraper': 'leetcode-solution'}
)

import json
data = json.loads(res['body'])
const { CrawlingAPI } = require('crawlbase');
const api = new CrawlingAPI({ token: 'YOUR_TOKEN' });

const res = await api.get(
  'https://leetcode.com/problems/two-sum/solutions/3619262/3-methods-c-java-python-beginner-friendl-x595/',
  { scraper: 'leetcode-solution' }
);
const data = JSON.parse(res.body);
require 'crawlbase'
api = Crawlbase::API.new(token: 'YOUR_TOKEN')

res = api.get('https://leetcode.com/problems/two-sum/solutions/3619262/3-methods-c-java-python-beginner-friendl-x595/', scraper: 'leetcode-solution')
data = JSON.parse(res.body)

Example input URL

Any LeetCode community solution post works in the url parameter - the page at /problems/<slug>/solutions/<id>/<post-slug>/. For example:

https://leetcode.com/problems/two-sum/solutions/3619262/3-methods-c-java-python-beginner-friendl-x595/
https://leetcode.com/problems/two-sum/solutions/127810/two-sum-by-leetcode-kwuq/

Response shape

JSON response body. Field types may be null when the source page omits the value.

url
string
URL of the solution post that was scraped.
id
string | null
Post identifier taken from its URL, returned as a string.
problem
string | null
Slug of the problem the post belongs to.
problemUrl
string | null
Absolute URL of the problem page.
title
string | null
Post title.
author
object
Account that published the post.
author.name
string | null
Author display name.
author.username
string | null
Author profile handle.
author.url
string | null
Absolute URL of the author profile.
postedAt
string | null
Publication date as displayed on the post.
tags
array
Tag chips on the post - topics and languages - as an array of strings.
views
integer | null
View count on the post.
upvotes
integer | null
Upvote count on the post.
comments
integer | null
Comment count on the post.
content
string | null
The write-up flattened to plain text.
contentHtml
string | null
The write-up as HTML, with headings, lists, and code markup preserved.
codeBlocks
array
Code blocks extracted from the write-up, in document order.
codeBlocks[].language
string | null
Language of the block as LeetCode labels it, for example cpp.
codeBlocks[].code
string | null
The block source, with its original indentation.

Sample response

{
  "url": "https://leetcode.com/problems/two-sum/solutions/3619262/3-methods-c-java-python-beginner-friendl-x595/",
  "id": "3619262",
  "problem": "two-sum",
  "problemUrl": "https://leetcode.com/problems/two-sum/",
  "title": "✅3 Method's || C++ || JAVA || PYTHON || Beginner Friendly🔥🔥🔥",
  "author": {
    "name": "Rahul Varma",
    "username": "rahulvarma5297",
    "url": "https://leetcode.com/u/rahulvarma5297/"
  },
  "postedAt": "Jun 09, 2023",
  "tags": [
    "Array",
    "Hash Table",
    "C++",
    "Java"
  ],
  "views": 2368905,
  "upvotes": 12000,
  "comments": 285,
  "content": "Intuition\n\nThe Two Sum problem asks us to find two numbers in an array that sum up to a given target value. We need to r...",
  "contentHtml": "
Intuition
\n\n
The Two Sum problem asks us to find two numbers in an array that sum up to a given...",
  "codeBlocks": [
    {
      "language": "cpp",
      "code": "class Solution {\npublic:\n    vector twoSum(vector& nums, int target) {\n        int n = nums.size();\n..."
    }
  ]
}