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mod_http_debug/mod_http_debug.lua @ 5691:ecfd7aece33b

mod_measure_modules: Report module statuses via OpenMetrics Someone in the chat asked about a health check endpoint, which reminded me of mod_http_status, which provides access to module statuses with full details. After that, this idea came about, which seems natural. As noted in the README, it could be used to monitor that critical modules are in fact loaded correctly. As more modules use the status API, the more useful this module and mod_http_status becomes.
author Kim Alvefur <zash@zash.se>
date Fri, 06 Oct 2023 18:34:39 +0200
parent 5492:b6af4d1ff8c1
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line source

local json = require "util.json"

module:depends("http")
local function handle_request(event)
	local request = event.request;
	(request.log or module._log)("debug", "%s -- %s %q HTTP/%s -- %q -- %s", request.ip, request.method, request.url, request.httpversion, request.headers, request.body);
	return {
		status_code = 200;
		headers = { content_type = "application/json" };
		host = module.host;
		body = json.encode {
			body = request.body;
			headers = request.headers;
			httpversion = request.httpversion;
			id = request.id;
			ip = request.ip;
			method = request.method;
			path = request.path;
			secure = request.secure;
			url = request.url;
		};
	}
end

local methods = module:get_option_set("http_debug_methods", { "GET"; "HEAD"; "DELETE"; "OPTIONS"; "PATCH"; "POST"; "PUT" });
local route = {};
for method in methods do
	route[method] = handle_request;
	route[method .. " /*"] = handle_request;
end

module:provides("http", {
	route = route;
})