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the-biergarten-app/tooling/pipeline/includes/web_client/http_web_client.h
Aaron Po 031be8ad5d Pipeline: Remove CURL as a dependency, add new HTTP module (#219)
Rationale: 

HTTP is a supporting concern in the pipeline, used only for Wikipedia enrichment calls. libcurl's C API required significant boilerplate to wrap safely. cpp-httplib is a header-only library that covers the same functionality with far less overhead and no manual resource management.
2026-05-03 13:35:58 -04:00

50 lines
1.5 KiB
C++

/**
* @file web_client/http_web_client.h
* @brief cpp-httplib implementation of the WebClient interface.
*/
#ifndef BIERGARTEN_PIPELINE_INCLUDES_HTTP_WEB_CLIENT_CURL_WEB_CLIENT_H_
#define BIERGARTEN_PIPELINE_INCLUDES_HTTP_WEB_CLIENT_CURL_WEB_CLIENT_H_
#include "web_client/web_client.h"
#include <string>
/**
* @brief WebClient implementation backed by cpp-httplib.
*
* Supports HTTP and HTTPS (requires OpenSSL; see HTTPLIB_REQUIRE_OPENSSL
* in CMakeLists.txt).
*
* URL parsing splits a full URL into origin (scheme://host[:port]) and
* path + query so that httplib::Client can be constructed correctly.
* A new client instance is created per request because the client is
* bound to a single origin at construction time.
*/
class HttpWebClient final : public WebClient {
public:
HttpWebClient() = default;
~HttpWebClient() override = default;
/**
* @brief Executes a blocking HTTP/HTTPS GET request against a full URL.
*
* @param url Fully-qualified URL, e.g. "https://en.wikipedia.org/api/rest_v1/page/summary/Berlin"
* @return Response body on HTTP 2xx; throws std::runtime_error otherwise.
*/
std::string Get(const std::string& url) override;
/**
* @brief Percent-encodes a single URI component (query parameter value or
* path segment). Delegates to httplib::encode_uri_component().
*
* @param value Raw string to encode.
* @return Percent-encoded string safe for use in a URL.
*/
std::string UrlEncode(const std::string& value) override;
};
#endif