ArduinoJson: API Reference

JsonObject::success()

Description

Tells if the object is valid, which can be used:

  1. to check if the object was successfully parsed, or
  2. to check if the object was successfully allocated.
Signatures
bool success() const;
Return value

true if the object was successfully parsed/allocated. false if the parsing/allocation failed.

Examples

Example 1: parsing success:

StaticJsonBuffer<200> jsonBuffer;
JsonObject& object = jsonBuffer.parseObject("{\"hello\":\"world\"}");
Serial.println(object.success()); // true

Example 2: parsing failure:

StaticJsonBuffer<200> jsonBuffer;
JsonObject& object = jsonBuffer.parseObject("[\"hello\",\"world\"]");
Serial.println(object.success()); // false

Example 3: allocation success:

StaticJsonBuffer<200> jsonBuffer;
JsonObject& object = jsonBuffer.createObject();
Serial.println(object.success()); // true

Example 4: allocation failure:

StaticJsonBuffer<1> jsonBuffer;
JsonObject& object = jsonBuffer.createObject();
Serial.println(object.success()); // false
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