75 lines
No EOL
3 KiB
C++
75 lines
No EOL
3 KiB
C++
#include "httpserver.hpp"
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//Added for the json-example:
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#include <boost/property_tree/ptree.hpp>
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#include <boost/property_tree/json_parser.hpp>
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using namespace std;
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//Added for the json-example:
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using namespace boost::property_tree;
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int main() {
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//HTTP-server at port 8080 using 4 threads
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HTTPServer httpserver(8080, 4);
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//Add resources using regular expression for path, a method-string and an anonymous function
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//POST-example for the path /string, responds the posted string
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httpserver.resources["^/string/?$"]["POST"]=[](ostream& response, const Request& request, const smatch& path_match) {
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//Retrieve string from istream (*request.content)
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stringstream ss;
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*request.content >> ss.rdbuf();
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string content=move(ss.str());
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << content.length() << "\r\n\r\n" << content;
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};
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//POST-example for the path /json, responds firstName+" "+lastName from the posted json
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//Responds with an appropriate error message if the posted json is not valid, or if firstName or lastName is missing
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//Example posted json:
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//{
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// "firstName": "John",
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// "lastName": "Smith",
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// "age": 25
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//}
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httpserver.resources["^/json/?$"]["POST"]=[](ostream& response, const Request& request, const smatch& path_match) {
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ptree pt;
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try {
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read_json(*request.content, pt);
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string name=pt.get<string>("firstName")+" "+pt.get<string>("lastName");
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << name.length() << "\r\n\r\n" << name;
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}
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catch(exception& e) {
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response << "HTTP/1.1 400 Bad Request\r\nContent-Length: " << strlen(e.what()) << "\r\n\r\n" << e.what();
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}
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};
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//GET-example for the path /
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//Responds with request-information
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httpserver.resources["^/$"]["GET"]=[](ostream& response, const Request& request, const smatch& path_match) {
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stringstream content_stream;
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content_stream << "<h1>Request:</h1>";
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content_stream << request.method << " " << request.path << " HTTP/" << request.http_version << "<br>";
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for(auto& header: request.header) {
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content_stream << header.first << ": " << header.second << "<br>";
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}
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//find length of content_stream (length received using content_stream.tellp())
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content_stream.seekp(0, ios::end);
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << content_stream.tellp() << "\r\n\r\n" << content_stream.rdbuf();
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};
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//GET-example for the path /match/[number], responds with the matched string in path (number)
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//For instance a request GET /match/123 will receive: 123
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httpserver.resources["^/match/([0-9]+)/?$"]["GET"]=[](ostream& response, const Request& request, const smatch& path_match) {
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string number=path_match[1];
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response << "HTTP/1.1 200 OK\r\nContent-Length: " << number.length() << "\r\n\r\n" << number;
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};
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//Start HTTP-server
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httpserver.start();
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return 0;
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} |