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

@ -6,7 +6,7 @@
// ArduinoJson.
//
// Use Flash strings sparingly, because ArduinoJson duplicates them in the
// JsonBuffer. Prefer plain old char*, as they are more efficient in term of
// JsonDocument. Prefer plain old char*, as they are more efficient in term of
// code size, speed, and memory usage.
#include <ArduinoJson.h>
@ -17,8 +17,7 @@ void setup() {
DynamicJsonDocument doc(1024);
// You can use a Flash String as your JSON input.
// WARNING: the content of the Flash String will be duplicated in the
// JsonBuffer.
// WARNING: the string in the input will be duplicated in the JsonDocument.
deserializeJson(doc, F("{\"sensor\":\"gps\",\"time\":1351824120,"
"\"data\":[48.756080,2.302038]}"));
JsonObject obj = doc.as<JsonObject>();
@ -29,12 +28,12 @@ void setup() {
// You can use a Flash String to set an element of a JsonObject
// WARNING: the content of the Flash String will be duplicated in the
// JsonBuffer.
// JsonDocument.
obj[F("time")] = time;
// You can set a Flash String to a JsonObject or JsonArray:
// WARNING: the content of the Flash String will be duplicated in the
// JsonBuffer.
// JsonDocument.
obj["sensor"] = F("gps");
// It works with serialized() too: