diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..84a3d7e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.swp
+http_test
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
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+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ Copyright (C)
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..d2f242a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,11 @@
+FROM ubuntu:bionic AS builder
+RUN apt-get -y update && apt-get install -y postgresql-client build-essential clang libpq-dev
+COPY . /app
+WORKDIR /app
+RUN make
+
+FROM ubuntu:bionic
+RUN apt-get -y update && apt-get install -y postgresql-client && rm -rf /var/lib/apt/lists/*
+COPY --from=builder /app/http_test /app/http_test
+CMD ["/app/http_test"]
+
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..9a26ca9
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,5 @@
+http_test: http_test.cpp
+ clang++ -o http_test -std=c++17 http_test.cpp -I$$(pg_config --includedir) $$(pg_config --ldflags) -lpq -lpthread
+
+fmt:
+ clang-format -i http_test.cpp
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..03a4201
--- /dev/null
+++ b/README.md
@@ -0,0 +1,26 @@
+# Simple HTTP stress testing
+
+This small C++ software has only one final scope: to have a simple backend to
+be used to test the speed of PostgreSQL workloads when a new connection is
+established per every request.
+
+
+## Configuration
+
+Environment variables are your friends:
+
+* `DATABASE_URL` is used as a connection string (libpq is being used to
+ communicate with the PostgreSQL server);
+
+* `SQL_QUERY` is the SQL query that will be executed when accessing the `/tx`
+ endpoint.
+
+
+## Other considerations
+
+As previously said, a new connection is established per request, without any
+connection pool. Use pgbouncer if you need something like that.
+
+## Thanks
+
+https://github.com/yhirose/cpp-httplib is a great tool, really.
diff --git a/http_test.cpp b/http_test.cpp
new file mode 100644
index 0000000..814ccff
--- /dev/null
+++ b/http_test.cpp
@@ -0,0 +1,109 @@
+/**
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ **/
+
+#include "httplib.h"
+#include
+#include
+#include
+#include
+
+void tx(const httplib::Request &req, httplib::Response &res);
+void logger(const httplib::Request &req, const httplib::Response &res);
+std::string get_configuration(const std::string &env_name,
+ const std::string &default_value = "");
+
+/**
+ * The database URL to be used as a libpq connection string
+ */
+const std::string database_url = get_configuration("DATABASE_URL");
+const std::string sql_query = get_configuration("SQL_QUERY", "SELECT 1");
+
+/**
+ * Everything starts from here
+ */
+int main() {
+ // Initial logging
+ std::cout << "Database URL: " << std::quoted(database_url) << std::endl;
+ std::cout << "SQL query: " << std::quoted(sql_query) << std::endl;
+ std::cout.flush();
+
+ // Starting HTTP server
+ httplib::Server svr;
+ svr.set_logger(logger);
+ svr.Get("/tx", tx);
+ svr.listen("0.0.0.0", 8080);
+
+ return 0;
+}
+
+/**
+ * Given a request/response pair, put a small log message in stdout
+ */
+void logger(const httplib::Request &req, const httplib::Response &res) {
+ using namespace std;
+
+ const auto now = std::chrono::system_clock::now();
+ const auto nowAsTimeT = std::chrono::system_clock::to_time_t(now);
+ const auto nowMs = std::chrono::duration_cast(
+ now.time_since_epoch()) %
+ 1000;
+
+ cout << std::put_time(std::localtime(&nowAsTimeT), "%a %b %d %Y %T") << '.'
+ << std::setfill('0') << std::setw(3) << nowMs.count();
+ cout << " " << req.remote_addr << " " << req.path << " - " << res.status
+ << endl;
+ cout.flush();
+}
+
+/**
+ * The test transaction on PostgreSQL
+ */
+void tx(const httplib::Request &req, httplib::Response &res) {
+ PGconn *conn = PQconnectdb(database_url.c_str());
+
+ if (PQstatus(conn) != CONNECTION_OK) {
+ res.set_content("Connection error", "text/plain");
+ res.status = 500;
+ std::cout << PQerrorMessage(conn) << std::endl;
+ std::cout.flush();
+ } else {
+ PGresult *pgres = PQexec(conn, sql_query.c_str());
+ if (PQresultStatus(pgres) != PGRES_COMMAND_OK &&
+ PQresultStatus(pgres) != PGRES_TUPLES_OK) {
+ res.set_content("Query error", "text/plain");
+ res.status = 500;
+ std::cout << PQresultErrorMessage(pgres) << std::endl;
+ std::cout.flush();
+ } else {
+ res.set_content("Ok!", "text/plain");
+ }
+ PQclear(pgres);
+ }
+
+ PQfinish(conn);
+}
+
+/**
+ * Get a configuration parameter or returns the default value
+ */
+std::string get_configuration(const std::string &env_name,
+ const std::string &default_value) {
+ auto value = std::getenv(env_name.c_str());
+ if (value == NULL) {
+ return default_value;
+ } else {
+ return value;
+ }
+}
diff --git a/httplib.h b/httplib.h
new file mode 100644
index 0000000..be0c090
--- /dev/null
+++ b/httplib.h
@@ -0,0 +1,7222 @@
+//
+// httplib.h
+//
+// Copyright (c) 2020 Yuji Hirose. All rights reserved.
+// MIT License
+//
+
+#ifndef CPPHTTPLIB_HTTPLIB_H
+#define CPPHTTPLIB_HTTPLIB_H
+
+/*
+ * Configuration
+ */
+
+#ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND
+#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5
+#endif
+
+#ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT
+#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5
+#endif
+
+#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND
+#define CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND 300
+#endif
+
+#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND
+#define CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND 0
+#endif
+
+#ifndef CPPHTTPLIB_READ_TIMEOUT_SECOND
+#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5
+#endif
+
+#ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND
+#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0
+#endif
+
+#ifndef CPPHTTPLIB_WRITE_TIMEOUT_SECOND
+#define CPPHTTPLIB_WRITE_TIMEOUT_SECOND 5
+#endif
+
+#ifndef CPPHTTPLIB_WRITE_TIMEOUT_USECOND
+#define CPPHTTPLIB_WRITE_TIMEOUT_USECOND 0
+#endif
+
+#ifndef CPPHTTPLIB_IDLE_INTERVAL_SECOND
+#define CPPHTTPLIB_IDLE_INTERVAL_SECOND 0
+#endif
+
+#ifndef CPPHTTPLIB_IDLE_INTERVAL_USECOND
+#ifdef _WIN32
+#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 10000
+#else
+#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 0
+#endif
+#endif
+
+#ifndef CPPHTTPLIB_REQUEST_URI_MAX_LENGTH
+#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192
+#endif
+
+#ifndef CPPHTTPLIB_REDIRECT_MAX_COUNT
+#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20
+#endif
+
+#ifndef CPPHTTPLIB_PAYLOAD_MAX_LENGTH
+#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH ((std::numeric_limits::max)())
+#endif
+
+#ifndef CPPHTTPLIB_TCP_NODELAY
+#define CPPHTTPLIB_TCP_NODELAY false
+#endif
+
+#ifndef CPPHTTPLIB_RECV_BUFSIZ
+#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u)
+#endif
+
+#ifndef CPPHTTPLIB_COMPRESSION_BUFSIZ
+#define CPPHTTPLIB_COMPRESSION_BUFSIZ size_t(16384u)
+#endif
+
+#ifndef CPPHTTPLIB_THREAD_POOL_COUNT
+#define CPPHTTPLIB_THREAD_POOL_COUNT \
+ ((std::max)(8u, std::thread::hardware_concurrency() > 0 \
+ ? std::thread::hardware_concurrency() - 1 \
+ : 0))
+#endif
+
+#ifndef CPPHTTPLIB_RECV_FLAGS
+#define CPPHTTPLIB_RECV_FLAGS 0
+#endif
+
+#ifndef CPPHTTPLIB_SEND_FLAGS
+#define CPPHTTPLIB_SEND_FLAGS 0
+#endif
+
+/*
+ * Headers
+ */
+
+#ifdef _WIN32
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif //_CRT_SECURE_NO_WARNINGS
+
+#ifndef _CRT_NONSTDC_NO_DEPRECATE
+#define _CRT_NONSTDC_NO_DEPRECATE
+#endif //_CRT_NONSTDC_NO_DEPRECATE
+
+#if defined(_MSC_VER)
+#ifdef _WIN64
+using ssize_t = __int64;
+#else
+using ssize_t = int;
+#endif
+
+#if _MSC_VER < 1900
+#define snprintf _snprintf_s
+#endif
+#endif // _MSC_VER
+
+#ifndef S_ISREG
+#define S_ISREG(m) (((m)&S_IFREG) == S_IFREG)
+#endif // S_ISREG
+
+#ifndef S_ISDIR
+#define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR)
+#endif // S_ISDIR
+
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif // NOMINMAX
+
+#include
+#include
+
+#include
+#include
+
+#ifndef WSA_FLAG_NO_HANDLE_INHERIT
+#define WSA_FLAG_NO_HANDLE_INHERIT 0x80
+#endif
+
+#ifdef _MSC_VER
+#pragma comment(lib, "ws2_32.lib")
+#pragma comment(lib, "crypt32.lib")
+#pragma comment(lib, "cryptui.lib")
+#endif
+
+#ifndef strcasecmp
+#define strcasecmp _stricmp
+#endif // strcasecmp
+
+using socket_t = SOCKET;
+#ifdef CPPHTTPLIB_USE_POLL
+#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout)
+#endif
+
+#else // not _WIN32
+
+#include
+#include
+#include
+#include
+#include
+#ifdef __linux__
+#include
+#endif
+#include
+#ifdef CPPHTTPLIB_USE_POLL
+#include
+#endif
+#include
+#include
+#include
+#include
+#include
+
+using socket_t = int;
+#define INVALID_SOCKET (-1)
+#endif //_WIN32
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include