Chrome拡張機能開発の副収入戦略とマネタイズ例（始め方・失敗しないコツも紹介）

// ChatGPTからコピーしたコードを自動整形

chrome.runtime.onInstalled.addListener(() => {

  chrome.contextMenus.create({

    id: "formatCode",

    title: "Format as proper code block",

    contexts: ["selection"]

  });

});

chrome.contextMenus.onClicked.addListener((info, tab) => {

  if (info.menuItemId === "formatCode") {

    chrome.scripting.executeScript({

      target: { tabId: tab.id },

      func: formatSelectedCode

    });

  }

});

<pre><code class="language-javascript">function formatSelectedCode() {

  const selection = window.getSelection().toString();

  const formatted = `\`\`\`\n${selection.trim()}\n\`\`\``;

  navigator.clipboard.writeText(formatted);

<pre><code class="language-yaml">あっ、サンプルコードもあるよ！！Notion APIでコミット情報をそのままページ登録しちゃうやつ！

async function syncGithubCommits(databaseId, commits) {

  for (const commit of commits) {

    await notion.pages.create({

      parent: { database_id: databaseId },

      properties: {

        Name: { title: [{ text: { content: commit.message } }] },

        Date: { date: { start: commit.date } },

        Repo: { rich_text: [{ text: { content: commit.repo } }] }

      }

    });

  }

from github import Github

import ast

def analyze_python_repo(repo_url):

    g = Github(access_token)

    repo = g.get_repo(repo_url)

issues = []

    for content_file in repo.get_contents(""):

        if content_file.name.endswith('.py'):

            code = content_file.decoded_content.decode()

# 超ベーシックなセキュリティチェック

            tree = ast.parse(code)

            for node in ast.walk(tree):

                if isinstance(node, ast.Call):

                    if hasattr(node.func, 'id') and node.func.id == 'eval':

                        issues.append(f"Unsafe eval() in {content_file.name}")

async function dentalChatbot(userMessage, patientHistory) {

  const completion = await openai.chat.completions.create({

    model: "gpt-4",

    messages: [

      {

        role: "system",

        content: `You're a dental office assistant. Be professional, empathetic.

        Patient history: ${JSON.stringify(patientHistory)}`

      },

      { role: "user", content: userMessage }

    ]

  });