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60 lines
1.5 KiB
60 lines
1.5 KiB
// ArduinoJson - https://arduinojson.org
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// Copyright © 2014-2023, Benoit BLANCHON
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// MIT License
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//
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// This example shows how to generate a JSON document with ArduinoJson.
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#include <iostream>
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#include "ArduinoJson.h"
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int main() {
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// Allocate the JSON document
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//
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// Inside the brackets, 200 is the RAM allocated to this document.
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// Don't forget to change this value to match your requirement.
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// Use https://arduinojson.org/v6/assistant to compute the capacity.
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StaticJsonDocument<200> doc;
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// StaticJsonObject allocates memory on the stack, it can be
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// replaced by DynamicJsonDocument which allocates in the heap.
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//
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// DynamicJsonDocument doc(200);
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// StaticJsonObject allocates memory on the stack, it can be
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// replaced by DynamicJsonDocument which allocates in the heap.
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//
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// DynamicJsonDocument doc(200);
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// Add values in the document
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//
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doc["sensor"] = "gps";
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doc["time"] = 1351824120;
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// Add an array.
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//
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JsonArray data = doc.createNestedArray("data");
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data.add(48.756080);
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data.add(2.302038);
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// Generate the minified JSON and send it to STDOUT
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//
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serializeJson(doc, std::cout);
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// The above line prints:
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// {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}
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// Start a new line
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std::cout << std::endl;
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// Generate the prettified JSON and send it to STDOUT
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//
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serializeJsonPretty(doc, std::cout);
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// The above line prints:
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// {
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// "sensor": "gps",
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// "time": 1351824120,
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// "data": [
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// 48.756080,
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// 2.302038
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// ]
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// }
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}
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