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Multiple influxdb servers support #1638

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69d1a01
Mutiple InfluxDB Server
lucciano Mar 16, 2019
7aa8f8f
Merge branch 'dev' of https://github.com/xoseperez/espurna into multi…
lucciano Mar 16, 2019
21bac2d
sends vcc, load avg and ssid to influx db
lucciano May 9, 2019
16b9860
Merge branch 'influxdb_extra_variables' of github.com:lucciano/espurn…
lucciano May 14, 2019
83b01fe
error when getting the hostname setting
lucciano May 16, 2019
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97 changes: 55 additions & 42 deletions code/espurna/influxdb.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,9 @@ Copyright (C) 2017-2019 by Xose Pérez <xose dot perez at gmail dot com>
*/

#if INFLUXDB_SUPPORT

#ifndef MAX_IDBS
#define MAX_IDBS 5
#endif
#include "ESPAsyncTCP.h"

#include "libs/SyncClientWrap.h"
Expand All @@ -22,13 +24,19 @@ bool _idbWebSocketOnReceive(const char * key, JsonVariant& value) {
}

void _idbWebSocketOnSend(JsonObject& root) {
root["maxIdbs"] = MAX_IDBS;
root["idbVisible"] = 1;
root["idbEnabled"] = getSetting("idbEnabled", INFLUXDB_ENABLED).toInt() == 1;
root["idbHost"] = getSetting("idbHost", INFLUXDB_HOST);
root["idbPort"] = getSetting("idbPort", INFLUXDB_PORT).toInt();
root["idbDatabase"] = getSetting("idbDatabase", INFLUXDB_DATABASE);
root["idbUsername"] = getSetting("idbUsername", INFLUXDB_USERNAME);
root["idbPassword"] = getSetting("idbPassword", INFLUXDB_PASSWORD);
JsonArray& idbs = root.createNestedArray("idbs");
for (byte i=0; i < MAX_IDBS; i++) {
if (!hasSetting("idbHost", i)) break;
JsonObject& influxdb = idbs.createNestedObject();
influxdb["idbHost"] = getSetting("idbHost", i, INFLUXDB_HOST);
influxdb["idbPort"] = getSetting("idbPort", i, INFLUXDB_PORT).toInt();
influxdb["idbDatabase"] = getSetting("idbDatabase", i, INFLUXDB_DATABASE);
influxdb["idbUsername"] = getSetting("idbUsername", i, INFLUXDB_USERNAME);
influxdb["idbPassword"] = getSetting("idbPassword", INFLUXDB_PASSWORD);
}
}

void _idbConfigure() {
Expand Down Expand Up @@ -56,49 +64,54 @@ bool idbSend(const char * topic, const char * payload) {

if (!_idb_enabled) return true;
if (!wifiConnected() || (WiFi.getMode() != WIFI_STA)) return true;

String h = getSetting("idbHost", INFLUXDB_HOST);
bool success = true;
for (int i = 0; i< MAX_IDBS; i++) {
if (getSetting("idbHost" + String(i)).length() == 0) break;

String h = getSetting("idbHost" + String(i), INFLUXDB_HOST);
#if MDNS_CLIENT_SUPPORT
h = mdnsResolve(h);
#endif
char * host = strdup(h.c_str());
unsigned int port = getSetting("idbPort", INFLUXDB_PORT).toInt();
DEBUG_MSG_P(PSTR("[INFLUXDB] Sending to %s:%u\n"), host, port);

bool success = false;

_idb_client->setTimeout(2);
if (_idb_client->connect((const char *) host, (unsigned int) port)) {

char data[128];
snprintf(data, sizeof(data), "%s,device=%s value=%s", topic, getSetting("hostname").c_str(), String(payload).c_str());
DEBUG_MSG_P(PSTR("[INFLUXDB] Data: %s\n"), data);

char request[256];
snprintf(request, sizeof(request), "POST /write?db=%s&u=%s&p=%s HTTP/1.1\r\nHost: %s:%u\r\nContent-Length: %d\r\n\r\n%s",
getSetting("idbDatabase", INFLUXDB_DATABASE).c_str(),
getSetting("idbUsername", INFLUXDB_USERNAME).c_str(), getSetting("idbPassword", INFLUXDB_PASSWORD).c_str(),
host, port, strlen(data), data);

if (_idb_client->printf(request) > 0) {
while (_idb_client->connected() && _idb_client->available() == 0) delay(1);
while (_idb_client->available()) _idb_client->read();
if (_idb_client->connected()) _idb_client->stop();
success = true;
char * host = strdup(h.c_str());
unsigned int port = getSetting("idbPort" + String(i), INFLUXDB_PORT).toInt();
DEBUG_MSG_P(PSTR("[INFLUXDB] Sending to %s:%u\n"), host, port);


_idb_client->setTimeout(2);
if (_idb_client->connect((const char *) host, port)) {

char data[128];
snprintf(data, sizeof(data), "%s,device=%s value=%s", topic, getSetting("hostname").c_str(), String(payload).c_str());
DEBUG_MSG_P(PSTR("[INFLUXDB] Data: %s\n"), data);

char request[256];
snprintf(request, sizeof(request), "POST /write?db=%s&u=%s&p=%s HTTP/1.1\r\nHost: %s:%u\r\nContent-Length: %d\r\n\r\n%s",
getSetting("idbDatabase" + String(i), INFLUXDB_DATABASE).c_str(),
getSetting("idbUsername" + String(i), INFLUXDB_USERNAME).c_str(), getSetting("idbPassword" + String(i), INFLUXDB_PASSWORD).c_str(),
host, port, strlen(data), data);

if (_idb_client->printf(request) > 0) {
while (_idb_client->connected() && _idb_client->available() == 0) delay(1);
while (_idb_client->available()) _idb_client->read();
if (_idb_client->connected()) _idb_client->stop();
success = success & true;
} else {
DEBUG_MSG_P(PSTR("[INFLUXDB] Sent failed\n"));
success = success & false;
}

_idb_client->stop();
while (_idb_client->connected()) yield();

free(host);
_idb_client->stop();
while (_idb_client->connected()) yield();

} else {
DEBUG_MSG_P(PSTR("[INFLUXDB] Sent failed\n"));
DEBUG_MSG_P(PSTR("[INFLUXDB] Connection failed\n"));
}

_idb_client->stop();
while (_idb_client->connected()) yield();

} else {
DEBUG_MSG_P(PSTR("[INFLUXDB] Connection failed\n"));
}

free(host);
return success;

}

bool idbSend(const char * topic, unsigned char id, const char * payload) {
Expand Down
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