push json limits about firebase-esp8266 HOT 13 CLOSED

First, try to edit library in this issue.
Try to push this string

String json = "{\"name\":\"iot4\",\"datetime\": \"2019/03/22 11\:27\:59\",\"accelX\": 0.067871,\"accelY\": -0.026367,\"accelZ\":-0.928223,\"temp\": 26.65,\"humid\": 93248.09}";

It should ok. If it's ok, check how you create json string e.g. from ArduinoJson object using printTo or create as string as above string.

Not recommend to include colon (:) i.e. 11:27:59 in database because it used as key/value separator in json object. I use escape character, back slash before colon (:) to make it can parse as :

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I use doc Arduinojson it is not a problem.
As I said I can send it if there is less characters
There is a limitation somewhere I need to bypass

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My library sends string as payload to server without any modification as I ask you to send json string of above post. If it works, the problem is in json object you created. You need to check the value you add to root and read it back.

from firebase-esp8266.

Can you show example code for me to test?

from firebase-esp8266.

from firebase-esp8266.

I mean instead of doing
char output[128]; serializeJson(doc, output); Firebase.pushJSON(firebaseData, "/data", output); }

from firebase-esp8266.

You need to assign macro ARDUINOJSON_USE_DOUBLE before include ArduinoJson.h like this

#define ARDUINOJSON_USE_DOUBLE 1
#include <ArduinoJson.h>

Here is the example to test

Try to push json data

DynamicJsonDocument doc(256);
double val1 = -0.00000001; //max 8 decimal places
double val2 = 321.12345678; //max 8 decimal places
doc["val1"] = val1;
doc["val2"] = val2;

char output[128];
memset(output, 0, 128);
serializeJson(doc, output);
Firebase.pushJSON(firebaseData, "/data", output);

Try to read json data back

Firebase.getJSON(firebaseData, "/data");

DynamicJsonDocument _doc(256);
deserializeJson(_doc, firebaseData.jsonData());
double _val1 = _doc["val1"];
double _val2 = _doc["val2"];
Serial.println(_val1,8);
Serial.println(_val2,8);

from firebase-esp8266.

It seems that you did not understood me or that I didn't explain well.
Everything is working fine, it was my fault
char output[128];
is not enough
char output[150];
is ok

I just asked if there is another way instead of going through a fixed buffer, perhaps using String

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I know as much as information you provide, the only part of your incompleted code then I need to build the basic test and extend the possibility to handle maximum decimal places for ArduinoJSON.

For String object it can because it has write function that ArduinoJson used for modify string.

String output="";
serializeJson(doc, output);

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thanks

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I got this error when I was trying to put that code:
no matching function for call to 'FirebaseESP32::pushJSON(FirebaseData&, StringSumHelper&, ArduinoJson::JsonObject&)'

from firebase-esp8266.

@Proxcentaur The library APIs were changed sofar.

You need to provide the FirebaseJson object to the pushJSON function.

For example.

FirebaseJson json;

json.add("data1",100); //add (new) data
json.set("data2/new", "test"); //set (replace or create new) the data

Firebase.pushJSON(firebaseData, "your_node_path", json);

from firebase-esp8266.

@Proxcentaur The library APIs were changed sofar.

You need to provide the FirebaseJson object to the pushJSON function.

For example.

FirebaseJson json;

json.add("data1",100); //add (new) data
json.set("data2/new", "test"); //set (replace or create new) the data

Firebase.pushJSON(firebaseData, "your_node_path", json);

thank you, it works!

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