Fork of the excellent esp8266-react - https://github.com/rjwats/esp8266-react
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83 lines
2.3 KiB
83 lines
2.3 KiB
#ifndef SettingsService_h
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#define SettingsService_h
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#if defined(ESP8266)
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#include <ESP8266WiFi.h>
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#include <ESPAsyncTCP.h>
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#elif defined(ESP_PLATFORM)
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#include <WiFi.h>
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#include <AsyncTCP.h>
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#endif
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#include <SettingsPersistence.h>
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#include <ESPAsyncWebServer.h>
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#include <AsyncJson.h>
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#include <ArduinoJson.h>
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#include <AsyncJsonRequestWebHandler.h>
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#include <AsyncJsonCallbackResponse.h>
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/*
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* Abstraction of a service which stores it's settings as JSON in a file system.
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*/
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class SettingsService : public SettingsPersistence {
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private:
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AsyncJsonRequestWebHandler _updateHandler;
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void fetchConfig(AsyncWebServerRequest *request){
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AsyncJsonResponse * response = new AsyncJsonResponse();
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writeToJsonObject(response->getRoot());
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response->setLength();
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request->send(response);
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}
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void updateConfig(AsyncWebServerRequest *request, JsonVariant &json){
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if (json.is<JsonObject>()){
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JsonObject& newConfig = json.as<JsonObject>();
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readFromJsonObject(newConfig);
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writeToFS();
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// write settings back with a callback to reconfigure the wifi
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AsyncJsonCallbackResponse * response = new AsyncJsonCallbackResponse([this] () {onConfigUpdated();});
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writeToJsonObject(response->getRoot());
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response->setLength();
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request->send(response);
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} else{
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request->send(400);
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}
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}
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protected:
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// will serve setting endpoints from here
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AsyncWebServer* _server;
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// implement to perform action when config has been updated
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virtual void onConfigUpdated(){}
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public:
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SettingsService(AsyncWebServer* server, FS* fs, char const* servicePath, char const* filePath):
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SettingsPersistence(fs, servicePath, filePath), _server(server) {
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// configure fetch config handler
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_server->on(servicePath, HTTP_GET, std::bind(&SettingsService::fetchConfig, this, std::placeholders::_1));
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// configure update settings handler
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_updateHandler.setUri(servicePath);
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_updateHandler.setMethod(HTTP_POST);
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_updateHandler.setMaxContentLength(MAX_SETTINGS_SIZE);
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_updateHandler.onRequest(std::bind(&SettingsService::updateConfig, this, std::placeholders::_1, std::placeholders::_2));
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_server->addHandler(&_updateHandler);
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}
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virtual ~SettingsService() {}
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virtual void begin() {
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readFromFS();
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}
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};
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#endif // end SettingsService
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