Detailed Description

HTTP helpers.

Namespaces
namespace	headers
	Common HTTP headers.

Classes
class	ContentType
	Content-Type representation. More...

class	ContentTypeHash

struct	DecomposedUrlView

class	MalformedContentType
	Content-Type parsing error. More...

Typedefs
using	Args = std::unordered_map<std::string, std::string, utils::StrCaseHash>

using	MultiArgs = std::multimap<std::string, std::string>

using	PathArgs = std::unordered_map<std::string, std::string>

Enumerations
enum class	HttpVersion { kDefault , k10 , k11 , k2 , k2Tls , k2PriorKnowledge }
	HTTP version to use. More...

enum	StatusCode : uint16_t { kInvalid = 0 , kContinue = 100 , kSwitchingProtocols = 101 , kProcessing = 102 , kEarlyHints = 103 , kOk = 200 , kCreated = 201 , kAccepted = 202 , kNonAuthoritativeInformation = 203 , kNoContent = 204 , kResetContent = 205 , kPartialContent = 206 , kMultiStatus = 207 , kAlreadyReported = 208 , kThisIsFine = 218 , kImUsed = 226 , kMultipleChoices = 300 , kMovedPermanently = 301 , kFound = 302 , kSeeOther = 303 , kNotModified = 304 , kUseProxy = 305 , kSwitchProxy = 306 , kTemporaryRedirect = 307 , kPermanentRedirect = 308 , kBadRequest = 400 , kUnauthorized = 401 , kPaymentRequired = 402 , kForbidden = 403 , kNotFound = 404 , kMethodNotAllowed = 405 , kNotAcceptable = 406 , kProxyAuthenticationRequired = 407 , kRequestTimeout = 408 , kConflict = 409 , kGone = 410 , kLengthRequired = 411 , kPreconditionFailed = 412 , kPayloadTooLarge = 413 , kUriTooLong = 414 , kUnsupportedMediaType = 415 , kRangeNotSatisfiable = 416 , kExpectationFailed = 417 , kImATeapot = 418 , kPageExpired = 419 , kMethodFailure = 420 , kMisdirectedRequest = 421 , kUnprocessableEntity = 422 , kLocked = 423 , kFailedDependency = 424 , kTooEarly = 425 , kUpgradeRequired = 426 , kPreconditionRequired = 428 , kTooManyRequests = 429 , kRequestHeaderFieldsTooLarge = 431 , kNginxNoResponse = 444 , kUnavailableForLegalReasons = 451 , kNginxRequestHeaderTooLarge = 494 , kNginxSSLCertificateError = 495 , kNginxSSLCertificateRequired = 496 , kNginxHTTPRequestSenttoHTTPSPort = 497 , kDeadlineExpired = 498 , kNginxClientClosedRequest = 499 , kInternalServerError = 500 , kNotImplemented = 501 , kBadGateway = 502 , kServiceUnavailable = 503 , kGatewayTimeout = 504 , kHttpVersionNotSupported = 505 , kVariantAlsoNegotiates = 506 , kInsufficientStorage = 507 , kLoopDetected = 508 , kBandwidthLimitExceeded = 509 , kNotExtended = 510 , kNetworkAuthenticationRequired = 511 , kWebServerIsDown = 520 , kConnectionTimedOut = 522 , kOriginIsUnreachable = 523 , kTimeoutOccurred = 524 , kSslHandshakeFailed = 525 , kInvalidSslCertificate = 526 , Invalid = kInvalid , OK = kOk , Created = kCreated , NoContent = kNoContent , BadRequest = kBadRequest , NotFound = kNotFound , Conflict = kConflict , TooManyRequests = kTooManyRequests , InternalServerError = kInternalServerError , kClientClosedRequest = kNginxClientClosedRequest }
	https://en.wikipedia.org/wiki/List_of_HTTP_status_codes More...

Functions
bool	operator== (const ContentType &, const ContentType &)

bool	operator!= (const ContentType &, const ContentType &)

bool	operator< (const ContentType &, const ContentType &)

std::string_view	ToString (HttpVersion version)

HttpVersion	HttpVersionFromString (std::string_view version)

HttpVersion	Parse (const yaml_config::YamlConfig &value, formats::parse::To< HttpVersion >)

std::string_view	StatusCodeString (StatusCode status)

std::string	ToString (StatusCode status)

std::ostream &	operator<< (std::ostream &os, StatusCode s)

std::string	UrlDecode (std::string_view range)
	Decode URL.

std::string	UrlEncode (std::string_view input_string)
	Encode as URL.

std::string	MakeQuery (const Args &query_args)
	Make an URL query.

std::string	MakeQuery (const MultiArgs &query_args)
	Make an URL query.

std::string	MakeQuery (const std::unordered_map< std::string, std::string > &query_args)
	Make an URL query.

std::string	MakeQuery (std::initializer_list< std::pair< std::string_view, std::string_view > > query_args)
	Make an URL query.

std::string	MakeUrl (std::string_view path, const Args &query_args)
	Make an URL with query arguments.

std::string	MakeUrl (std::string_view path, const std::unordered_map< std::string, std::string > &query_args)
	Make an URL with query arguments.

std::string	MakeUrl (std::string_view path, const Args &query_args, MultiArgs query_multiargs)
	Make an URL with query arguments.

std::string	MakeUrl (std::string_view path, std::initializer_list< std::pair< std::string_view, std::string_view > > query_args)
	Make an URL with query arguments.

std::string	MakeUrl (std::string_view path, const std::vector< std::pair< std::string_view, std::string_view > > &query_args)
	Make an URL with query arguments.

std::optional< std::string >	MakeUrlWithPathArgs (std::string_view path, const PathArgs &path_args)
	Make a path from a template and arguments.

std::optional< std::string >	MakeUrlWithPathArgs (std::string_view path, const PathArgs &path_args, const Args &query_args)
	Make an URL with path parameters and query arguments.

std::optional< std::string >	MakeUrlWithPathArgs (std::string_view path, const PathArgs &path_args, const std::unordered_map< std::string, std::string > &query_args)
	Make an URL with path parameters and query arguments.

std::optional< std::string >	MakeUrlWithPathArgs (std::string_view path, const PathArgs &path_args, const Args &query_args, MultiArgs query_multiargs)
	Make an URL with path parameters and query arguments, supporting multiple values for the same key.

std::optional< std::string >	MakeUrlWithPathArgs (std::string_view path, const PathArgs &path_args, std::initializer_list< std::pair< std::string_view, std::string_view > > query_args)
	Make an URL with path parameters and query arguments.

std::string	ExtractMetaTypeFromUrl (std::string_view url)
	Returns URL part before the first '?' character.

std::string_view	ExtractMetaTypeFromUrlView (std::string_view url)

std::string	ExtractPath (std::string_view url)
	Returns HTTP path part of a URL.

std::string_view	ExtractPathView (std::string_view url)

std::string	ExtractPathOnly (std::string_view url)
	Returns HTTP path part of a URL.

std::string	ExtractHostname (std::string_view url)
	Returns hostname part of a URL.

std::string_view	ExtractHostnameView (std::string_view url)

std::string	ExtractScheme (std::string_view url)
	Returns scheme part of a URL.

std::string_view	ExtractSchemeView (std::string_view url)

std::string	ExtractQuery (std::string_view url)
	Returns query part of a URL.

std::string_view	ExtractQueryView (std::string_view url)

std::string	ExtractFragment (std::string_view url)
	Returns fragment part of a URL.

std::string_view	ExtractFragmentView (std::string_view url)

DecomposedUrlView	DecomposeUrlIntoViews (std::string_view url)
	Returns decomposed URL as a struct, broken into main parts: scheme, host, path, query, and fragment.

template<typename Value, typename = std::enable_if_t<formats::common::kIsFormatValue<Value>>>
StatusCode	Parse (const Value &value, formats::parse::To< StatusCode >)

Typedef Documentation

◆ Args

using http::Args = std::unordered_map<std::string, std::string, utils::StrCaseHash>

Definition at line 41 of file url.hpp.

◆ MultiArgs

using http::MultiArgs = std::multimap<std::string, std::string>

Definition at line 42 of file url.hpp.

◆ PathArgs

using http::PathArgs = std::unordered_map<std::string, std::string>

Definition at line 43 of file url.hpp.

Enumeration Type Documentation

◆ HttpVersion

enum class http::HttpVersion

strong

HTTP version to use.

Enumerator
kDefault	unspecified version
k10	HTTP/1.0 only.
k11	HTTP/1.1 only.
k2	HTTP/2 with fallback to HTTP/1.1.
k2Tls	HTTP/2 over TLS only, otherwise (no TLS or h2) HTTP/1.1.
k2PriorKnowledge	HTTP/2 only (without Upgrade)

Definition at line 15 of file http_version.hpp.

◆ StatusCode

enum http::StatusCode : uint16_t

https://en.wikipedia.org/wiki/List_of_HTTP_status_codes

Definition at line 16 of file status_code.hpp.

Function Documentation

◆ ExtractFragment()

std::string http::ExtractFragment ( std::string_view url )

Returns fragment part of a URL.

Parameters

url	Full URL to extract from

Returns: Fragment component of the URL
auto fragment = ExtractFragment("https://example.com/api/users?q=1");

// Returns: ""

auto fragment2 = ExtractFragment("http://user:pass@example.com:8080/api#123");

// Returns: "123"

auto fragment3 = ExtractFragment("ftp://[::1]:8080/#123?q=12&w=23");

// Returns: "123"

auto fragment4 = ExtractFragment("ftp://[::1]:8080/?q=12&w=23#123");

// Returns: "123"

◆ ExtractHostname()

std::string http::ExtractHostname ( std::string_view url )

Returns hostname part of a URL.

Parameters

url	Full URL to extract from

Returns: Hostname component of the URL
auto host = ExtractHostname("https://example.com/api/users");

// Returns: "example.com"

auto host2 = ExtractHostname("https://user:pass@example.com:8080/api");

// Returns: "example.com"

auto host3 = ExtractHostname("http://[::1]:8080/");

// Returns: "[::1]"

◆ ExtractMetaTypeFromUrl()

std::string http::ExtractMetaTypeFromUrl ( std::string_view url )

Returns URL part before the first '?' character.

Parameters

url	Full URL to extract from

Returns: URL without query string
auto base = ExtractMetaTypeFromUrl("https://example.com/api/users?page=1&sort=name");

// Returns: "https://example.com/api/users"

◆ ExtractPath()

std::string http::ExtractPath ( std::string_view url )

Returns HTTP path part of a URL.

Parameters

url	Full URL to extract from

Returns: Path component of the URL
auto path = ExtractPath("https://example.com/api/users");

// Returns: "/api/users"

auto path2 = ExtractPath("example.com/api/users?a=b");

// Returns: "/api/users?a=b"

◆ ExtractPathOnly()

std::string http::ExtractPathOnly ( std::string_view url )

Returns HTTP path part of a URL.

Parameters

url	Full URL to extract from

Returns: Path component of the URL
auto path = ExtractPath("https://example.com/api/users");

// Returns: "/api/users"

auto path2 = ExtractPath("example.com/api/users?a=b");

// Returns: "/api/users"

◆ ExtractQuery()

std::string http::ExtractQuery ( std::string_view url )

Returns query part of a URL.

Parameters

url	Full URL to extract from

Returns: Query component of the URL
auto query = ExtractQuery("https://example.com/api/users?q=1");

// Returns: "q=1"

auto query2 = ExtractQuery("http://user:pass@example.com:8080/api");

// Returns: ""

auto query3 = ExtractQuery("ftp://[::1]:8080/?q=12&w=23");

// Returns: "q=12&w=23"

◆ ExtractScheme()

std::string http::ExtractScheme ( std::string_view url )

Returns scheme part of a URL.

Parameters

url	Full URL to extract from

Returns: Scheme component of the URL
auto scheme = ExtractScheme("https://example.com/api/users");

// Returns: "https"

auto scheme2 = ExtractScheme("http://user:pass@example.com:8080/api");

// Returns: "http"

auto scheme3 = ExtractScheme("ftp://[::1]:8080/");

// Returns: "ftp"

◆ MakeQuery() [1/4]

std::string http::MakeQuery ( const Args & query_args )

Make an URL query.

Parameters

query_args Map of query parameters

Returns: URL query string without leading '?' character
auto query = MakeQuery(http::Args{{"param", "value"}, {"filter", "active"}});

// Returns: "param=value&filter=active"

◆ MakeQuery() [2/4]

std::string http::MakeQuery ( const MultiArgs & query_args )

Make an URL query.

Parameters

query_args Multimap of query parameters

Returns: URL query string without leading '?' character
http::MultiArgs args = {{"tag", "new"}, {"tag", "featured"}};

auto query = MakeQuery(args);

// Returns: "tag=new&tag=featured"

◆ MakeQuery() [3/4]

std::string http::MakeQuery ( const std::unordered_map< std::string, std::string > & query_args )

Make an URL query.

Parameters

query_args Map of query parameters

Returns: URL query string without leading '?' character
auto query = MakeQuery(std::unordered_map<std::string, std::string>{{"page", "1"}, {"size", "10"}});

// Returns: "page=1&size=10"

◆ MakeQuery() [4/4]

std::string http::MakeQuery ( std::initializer_list< std::pair< std::string_view, std::string_view > > query_args )

Make an URL query.

Parameters

query_args Initializer list of query parameters as key-value pairs

Returns: URL query string without leading '?' character
auto query = MakeQuery({{"sort", "date"}, {"order", "desc"}});

// Returns: "sort=date&order=desc"

◆ MakeUrl() [1/5]

std::string http::MakeUrl	(	std::string_view	path,
		const Args &	query_args )

Make an URL with query arguments.

Parameters

path	Base URL path
query_args	Map of query parameters

Returns: Complete URL with query string
auto url = MakeUrl("/api/users", http::Args{{"status", "active"}});

// Returns: "/api/users?status=active"

Examples: samples/http_caching/main.cpp.

◆ MakeUrl() [2/5]

std::string http::MakeUrl	(	std::string_view	path,
		const Args &	query_args,
		MultiArgs	query_multiargs )

Make an URL with query arguments.

Parameters

path	Base URL path
query_args	Map of query parameters
query_multiargs	Multimap for query parameters that can have multiple values

Returns: Complete URL with query string
http::MultiArgs multi_args = {{"tag", "new"}, {"tag", "featured"}};

auto url = MakeUrl("/api/products", http::Args{{"category", "electronics"}}, multi_args);

// Returns: "/api/products?category=electronics&tag=new&tag=featured"

◆ MakeUrl() [3/5]

std::string http::MakeUrl	(	std::string_view	path,
		const std::unordered_map< std::string, std::string > &	query_args )

Make an URL with query arguments.

Parameters

path	Base URL path
query_args	Map of query parameters

Returns: Complete URL with query string
auto url = MakeUrl("/api/products", std::unordered_map<std::string, std::string>{{"category", "electronics"}});

// Returns: "/api/products?category=electronics"

◆ MakeUrl() [4/5]

std::string http::MakeUrl	(	std::string_view	path,
		const std::vector< std::pair< std::string_view, std::string_view > > &	query_args )

Make an URL with query arguments.

Parameters

path	Base URL path
query_args	vector of query parameters as key-value pairs

Returns: Complete URL with query string

◆ MakeUrl() [5/5]

std::string http::MakeUrl	(	std::string_view	path,
		std::initializer_list< std::pair< std::string_view, std::string_view > >	query_args )

Make an URL with query arguments.

Parameters

path	Base URL path
query_args	Initializer list of query parameters as key-value pairs

Returns: Complete URL with query string
auto url = MakeUrl("/api/search", {{"q", "smartphone"}, {"sort", "relevance"}});

// Returns: "/api/search?q=smartphone&sort=relevance"

◆ MakeUrlWithPathArgs() [1/5]

std::optional< std::string > http::MakeUrlWithPathArgs	(	std::string_view	path,
		const PathArgs &	path_args )

Make a path from a template and arguments.

Parameters

path	Template string with placeholders in format {name}
path_args	Map of placeholder names to their values

Returns: Formatted path or std::nullopt if formatting fails (e.g., missing placeholder, invalid format, or empty key in path_args)
auto url = MakeUrlWithPathArgs("/api/v1/users/{user_id}", {{"user_id", "123"}});

// Returns: "/api/v1/users/123"

◆ MakeUrlWithPathArgs() [2/5]

std::optional< std::string > http::MakeUrlWithPathArgs	(	std::string_view	path,
		const PathArgs &	path_args,
		const Args &	query_args )

Make an URL with path parameters and query arguments.

Parameters

path	Template string with placeholders in format {name}
path_args	Map of placeholder names to their values
query_args	Map of query parameters

Returns: Formatted URL or std::nullopt if path formatting fails
auto url = MakeUrlWithPathArgs("/api/v1/users/{user_id}",

{{"user_id", "123"}},

http::Args{{"filter", "active"}});

// Returns: "/api/v1/users/123?filter=active"

◆ MakeUrlWithPathArgs() [3/5]

std::optional< std::string > http::MakeUrlWithPathArgs	(	std::string_view	path,
		const PathArgs &	path_args,
		const Args &	query_args,
		MultiArgs	query_multiargs )

Make an URL with path parameters and query arguments, supporting multiple values for the same key.

Parameters

path	Template string with placeholders in format {name}
path_args	Map of placeholder names to their values
query_args	Map of query parameters
query_multiargs	Multimap for query parameters that can have multiple values

Returns: Formatted URL or std::nullopt if path formatting fails
http::MultiArgs multi_args = {{"tag", "new"}, {"tag", "featured"}};

auto url = MakeUrlWithPathArgs("/api/v1/products/{category}",

{{"category", "electronics"}},

http::Args{{"sort", "price"}},

multi_args);

// Returns: "/api/v1/products/electronics?sort=price&tag=new&tag=featured"

◆ MakeUrlWithPathArgs() [4/5]

std::optional< std::string > http::MakeUrlWithPathArgs	(	std::string_view	path,
		const PathArgs &	path_args,
		const std::unordered_map< std::string, std::string > &	query_args )

Make an URL with path parameters and query arguments.

Parameters

path	Template string with placeholders in format {name}
path_args	Map of placeholder names to their values
query_args	Map of query parameters

Returns: Formatted URL or std::nullopt if path formatting fails
auto url = MakeUrlWithPathArgs("/api/v1/users/{user_id}",

{{"user_id", "123"}},

std::unordered_map<std::string, std::string>{{"page", "1"}});

// Returns: "/api/v1/users/123?page=1"

◆ MakeUrlWithPathArgs() [5/5]

std::optional< std::string > http::MakeUrlWithPathArgs	(	std::string_view	path,
		const PathArgs &	path_args,
		std::initializer_list< std::pair< std::string_view, std::string_view > >	query_args )

Make an URL with path parameters and query arguments.

Parameters

path	Template string with placeholders in format {name}
path_args	Map of placeholder names to their values
query_args	Initializer list of query parameters as key-value pairs

Returns: Formatted URL or std::nullopt if path formatting fails
auto url = MakeUrlWithPathArgs("/api/v1/search/{term}",

{{"term", "laptop"}},

{{"brand", "apple"}, {"price_max", "2000"}});

// Returns: "/api/v1/search/laptop?brand=apple&price_max=2000"

◆ operator<()

bool http::operator<	(	const ContentType &	,
		const ContentType &	)

Weak ordering for Accept media-ranges checking. Positions less specific types before more specific, so that the most specific type can be matched first.

◆ Parse()

template<typename Value, typename = std::enable_if_t<formats::common::kIsFormatValue<Value>>>

StatusCode http::Parse	(	const Value &	value,
		formats::parse::To< StatusCode >	)

Definition at line 16 of file parse_status_code.hpp.

◆ UrlEncode()

std::string http::UrlEncode ( std::string_view input_string )

Encode as URL.

Parameters

input_string String to encode

Returns: URL-encoded string where special characters are encoded as XX sequences
auto encoded = UrlEncode("hello world");

// Returns: "hello%20world"

Detailed Description

Namespaces

Classes

Typedefs

Enumerations

Functions

Typedef Documentation

◆ Args

◆ MultiArgs

◆ PathArgs

Enumeration Type Documentation

◆ HttpVersion

◆ StatusCode

Function Documentation

◆ ExtractFragment()

◆ ExtractHostname()

◆ ExtractMetaTypeFromUrl()

◆ ExtractPath()

◆ ExtractPathOnly()

◆ ExtractQuery()

◆ ExtractScheme()

◆ MakeQuery() [1/4]

◆ MakeQuery() [2/4]

◆ MakeQuery() [3/4]

◆ MakeQuery() [4/4]

◆ MakeUrl() [1/5]

◆ MakeUrl() [2/5]

◆ MakeUrl() [3/5]

◆ MakeUrl() [4/5]

◆ MakeUrl() [5/5]

◆ MakeUrlWithPathArgs() [1/5]

◆ MakeUrlWithPathArgs() [2/5]

◆ MakeUrlWithPathArgs() [3/5]

◆ MakeUrlWithPathArgs() [4/5]

◆ MakeUrlWithPathArgs() [5/5]

◆ operator<()

◆ Parse()

◆ UrlEncode()