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Generate the JSON without any library

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Ollo 2021-12-18 13:29:41 +01:00
parent 3224224251
commit ae6c53d39b
1 changed files with 28 additions and 33 deletions
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61
src/main.cpp
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@ -387,45 +387,40 @@ String sensorHeader(void) {
String diagramJson(void) {
int i;
String buffer;
String bufferLabels;
String bufferDataContent;
String bufferData;
String bufferLabels = "\"\"";
String bufferDataTemp = "\"\"";
String bufferDataPressure = "\"\"";
String bufferDatasets;
String bufferData;
long now = millis();
StaticJsonDocument<500> doc;
StaticJsonDocument<500> docLabels;
StaticJsonDocument<500> docDataset;
StaticJsonDocument<500> docDatasets;
StaticJsonDocument<500> docDataTemp;
StaticJsonDocument<500> docDataPressure;
for(i=0; i < mMeasureIndex; i++) {
docLabels.add(String(String((now - mMeasureSeries[i].timestamp) / 1000) + String("s")));
docDataTemp.add(String(mMeasureSeries[i].temp));
docDataPressure.add(String(mMeasureSeries[i].pressure));
if (mMeasureIndex > 0) {
bufferLabels = "[ \"" + String((now - mMeasureSeries[0].timestamp) / 1000) + "s";
bufferDataTemp = "[ \"" + String(mMeasureSeries[0].temp);
bufferDataPressure = "[ \"" + String(mMeasureSeries[0].pressure);
}
serializeJson(docLabels, bufferLabels);
for(i=1; i < mMeasureIndex; i++) {
bufferLabels += "\", \"" + String((now - mMeasureSeries[i].timestamp) / 1000) + "s";
bufferDataTemp += "\", \"" + String(mMeasureSeries[i].temp);
bufferDataPressure += "\", \"" + String(mMeasureSeries[i].pressure);
}
if (mMeasureIndex > 0) {
bufferLabels += "\" ]";
bufferDataTemp += "\" ]";
bufferDataPressure += "\" ]";
}
/* Generate label */
buffer = "{ \"labels\" : " + bufferLabels + ",\n";
buffer += "\"datasets\" : [";
/* generate first block for Temperature */
docDataset.clear();
docDataset["label"] = "Temp";
serializeJson(docDataTemp, bufferDataContent);
docDataset["data"] = bufferDataContent;
docDataset["borderColor"] = "rgba(255,0,0,1)";
serializeJson(docDataset, bufferData);
docDatasets.add(bufferData);
buffer += "{\n \"label\" : \"Temp\",\n \"data\" : " + bufferDataTemp + ",\n \"borderColor\" : \"rgba(255,0,0,1)\" \n}";
/* generate second block for Pressure */
docDataset.clear();
docDataset["label"] = "Pressure";
serializeJson(docDataPressure, bufferDataContent);
docDataset["data"] = bufferDataContent;
docDataset["borderColor"] = "rgba(0,0,255,1)";
serializeJson(docDataset, bufferData);
docDatasets.add(bufferData);
buffer += ", ";
buffer += "{\n \"label\" : \"Pressure\",\n \"data\" : " + bufferDataPressure + ",\n \"borderColor\" : \"rgba(0,0,255,1)\" \n}";
/* TODO, next ones ... */
serializeJson(docDatasets, bufferDatasets);
doc["labels"] = bufferLabels;
doc["datasets"] = bufferDatasets;
serializeJson(doc, buffer);
buffer += "]\n }";
return buffer;
}