Brave Search
Brave Search 是由 Brave Software 開發的搜尋引擎。
Brave Search使用自己的網路索引。截至 2022 年 5 月，它涵蓋超過 100 億個頁面，並用於提供 92% 的搜尋結果，而無需依賴任何第三方，其餘部分從 Bing API 以伺服器端檢索，或從 Google 以用戶選擇加入方式從用戶端檢索。根據 Brave 的說法，該索引「有意地比 Google 或 Bing 的索引小」，以幫助避免垃圾郵件和其他低品質內容，缺點是「Brave Search 在檢索長尾查詢方面還不如 Google」。Brave Search Premium：截至 2023 年 4 月，Brave Search 是一個無廣告網站，但最終將轉向包含廣告的新模式，付費使用者將獲得無廣告體驗。預設情況下，包括 IP 位址在內的使用者資料將不會從使用者那裡收集。選擇加入資料收集將需要付費帳戶。
安裝與設定
若要存取 Brave Search API，您需要建立帳戶並取得 API 金鑰。
api_key = "..."
from langchain_community.document_loaders import BraveSearchLoader
API 參考文件：BraveSearchLoader
範例
loader = BraveSearchLoader(
query="obama middle name", api_key=api_key, search_kwargs={"count": 3}
)
docs = loader.load()
len(docs)
3
[doc.metadata for doc in docs]
[{'title': "Obama's Middle Name -- My Last Name -- is 'Hussein.' So?",
'link': 'https://www.cair.com/cair_in_the_news/obamas-middle-name-my-last-name-is-hussein-so/'},
{'title': "What's up with Obama's middle name? - Quora",
'link': 'https://www.quora.com/Whats-up-with-Obamas-middle-name'},
{'title': 'Barack Obama | Biography, Parents, Education, Presidency, Books, ...',
'link': 'https://www.britannica.com/biography/Barack-Obama'}]
[doc.page_content for doc in docs]
['I wasn’t sure whether to laugh or cry a few days back listening to radio talk show host Bill Cunningham repeatedly scream Barack <strong>Obama</strong>’<strong>s</strong> <strong>middle</strong> <strong>name</strong> — my last <strong>name</strong> — as if he had anti-Muslim Tourette’s. “Hussein,” Cunningham hissed like he was beckoning Satan when shouting the ...',
'Answer (1 of 15): A better question would be, “What’s up with <strong>Obama</strong>’s first <strong>name</strong>?” President Barack Hussein <strong>Obama</strong>’s father’s <strong>name</strong> was Barack Hussein <strong>Obama</strong>. He was <strong>named</strong> after his father. Hussein, <strong>Obama</strong>’<strong>s</strong> <strong>middle</strong> <strong>name</strong>, is a very common Arabic <strong>name</strong>, meaning "good," "handsome," or ...',
'Barack <strong>Obama</strong>, in full Barack Hussein <strong>Obama</strong> II, (born August 4, 1961, Honolulu, Hawaii, U.S.), 44th president of the United States (2009–17) and the first African American to hold the office. Before winning the presidency, <strong>Obama</strong> represented Illinois in the U.S.']