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HTTP

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2분 소요

HTTP란 무엇인가요?

HTTP (Hypertext Transfer Protocol) is the foundational protocol of the web that defines how clients and servers communicate. Every API call, web page load, and webhook delivery travels over HTTP.

What is HTTP?

HTTP (Hypertext Transfer Protocol) is the application-layer protocol that powers the World Wide Web. It defines a request-response model where a client (typically a browser or application) sends a request to a server, and the server returns a response containing the requested resource or the result of an action.

Key Concepts

  • Methods: GET (retrieve), POST (create), PUT (replace), PATCH (partial update), DELETE (remove), HEAD (metadata only), OPTIONS (capabilities).
  • Status codes: 2xx (success), 3xx (redirect), 4xx (client error), 5xx (server error). Common codes include 200 OK, 301 Moved Permanently, 400 Bad Request, 401 Unauthorized, 403 Forbidden, 404 Not Found, 429 Too Many Requests, 500 Internal Server Error.
  • Headers: Metadata sent with requests and responses — authentication tokens, content types, caching directives, CORS policies.
  • HTTPS: HTTP over TLS encryption. Standard for all modern web traffic, protecting data integrity and privacy in transit.

    • HTTP in Automation

    Every browser automation step, API call, and webhook delivery is an HTTP transaction. Understanding HTTP status codes and headers is essential for building reliable automations — a 429 response means you need to back off, a 301 means you should follow the redirect, and a 500 means the server had an error you should retry.

    HTTP/2 and HTTP/3

    HTTP/2 introduced multiplexing (multiple requests over a single connection), header compression, and server push. HTTP/3 replaces TCP with QUIC for faster connection setup and better performance on lossy networks. Most modern servers and browsers support HTTP/2, with HTTP/3 adoption growing rapidly.

    왜 중요한가요

    HTTP is the transport layer for virtually all web-based automation. Understanding its methods, status codes, and headers is essential for debugging failed API calls, configuring integrations, and building workflows that handle errors gracefully.

    Autonoly는 어떻게 해결하나요

    Autonoly's HTTP node supports all standard HTTP methods, custom headers, authentication schemes, and automatic status code handling. You do not need to understand the protocol details — Autonoly interprets responses, follows redirects, and retries transient failures automatically within your workflows.

    자세히 보기

    예시

    • Sending an HTTP GET request to fetch pricing data from a public API

    • Configuring custom HTTP headers for Bearer token authentication in an API workflow

    • Diagnosing a failed automation step by inspecting the HTTP 403 response indicating a permissions issue

    자주 묻는 질문

    HTTPS is HTTP with TLS encryption. It ensures that data exchanged between client and server cannot be intercepted or tampered with. All modern websites and APIs should use HTTPS. The only difference is the encryption layer — the protocol semantics (methods, headers, status codes) are identical.

    A 429 Too Many Requests response means you have exceeded the API's rate limit. You should implement backoff logic — wait for the duration specified in the Retry-After header before sending another request. Most automation platforms handle this automatically.

    ← Headless BrowserHuman-in-the-Loop →

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