JsonVariant automatically promotes to JsonObject or JsonArray on write

This commit is contained in:
Benoit Blanchon
2019-01-29 14:09:09 +01:00
parent 5aea1363cc
commit 6f55d1e58f
53 changed files with 1197 additions and 541 deletions

View File

@ -15,7 +15,7 @@ void setup() {
//
// Inside the brackets, 200 is the RAM allocated to this document.
// Don't forget to change this value to match your requirement.
// Use arduinojson.org/assistant to compute the capacity.
// Use arduinojson.org/v6/assistant to compute the capacity.
StaticJsonDocument<200> doc;
// StaticJsonObject allocates memory on the stack, it can be
@ -23,30 +23,30 @@ void setup() {
//
// DynamicJsonDocument doc(200);
// Make our document be an object
JsonObject root = doc.to<JsonObject>();
// Add values in the object
// Add values in the document
//
// Most of the time, you can rely on the implicit casts.
// In other case, you can do root.set<long>("time", 1351824120);
root["sensor"] = "gps";
root["time"] = 1351824120;
doc["sensor"] = "gps";
doc["time"] = 1351824120;
// Add an array.
//
JsonArray data = root.createNestedArray("data");
JsonArray data = doc.createNestedArray("data");
data.add(48.756080);
data.add(2.302038);
// Generate the minified JSON and send it to the Serial port.
//
serializeJson(doc, Serial);
// This prints:
// The above line prints:
// {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}
// Start a new line
Serial.println();
// Generate the prettified JSON and send it to the Serial port.
//
serializeJsonPretty(doc, Serial);
// This prints:
// The above line prints:
// {
// "sensor": "gps",
// "time": 1351824120,