Merge pull request #32 from bonitoo-io/influxdb_client_merge

Docs update

Author: vlastahajek

README.md

@@ -1,6 +1,6 @@
 # InfluxDB Arduino Client
 
-Simple Arduino client for writing and reading data from [InfluxDB](https://www.influxdata.com/products/influxdb-overview/), it doesn't matter whether a local server or InfluxDB Cloud. Library supports authentication, secure communication over TLS, [batching](#writing-in-batches), [automatic retrying](#buffer-handling-and-retrying) on server backpressure and connection failure.
+Simple Arduino client for writing data to [InfluxDB](https://www.influxdata.com/products/influxdb-overview/), it doesn't matter whether a local server or InfluxDB Cloud. Library supports authentication, secure communication over TLS, [batching](#writing-in-batches), [automatic retrying](#buffer-handling-and-retrying) on server backpressure and connection failure.
 
 It also allows setting data in various formats, automatically escapes special characters and offers specifying timestamp in various precisions. 
 
@@ -344,43 +344,6 @@ void setup() {
 }
 ```
 
-## Querying
-InfluxDB uses [Flux](https://www.influxdata.com/products/flux/) to process and query data. InfluxDB client for Arduino offers a simple way how to query data with `query` function:
-```cpp
-// Construct a Flux query
-// Query will find RSSI for last 24 hours for each connected WiFi network with this device computed by given selector function
-String query = "from(bucket: \"" INFLUXDB_BUCKET "\") |> range(start: -24h) |> filter(fn: (r) => r._measurement == \"wifi_status\" and r._field == \"rssi\"";
-query += "and r.device == \"" DEVICE "\")";
-query += "|> " + selectorFunction + "()";
-
-String resultSet = client.query(query);
-// Check empty response
-if (resultSet == "") {
-    // It can mean empty query result
-    if (client.wasLastQuerySuccessful()) {
-        Serial.println("Empty results set");
-    } else {
-        // or an error
-        Serial.print("InfluxDB query failed: ");
-        Serial.println(client.getLastErrorMessage());
-    }
-} else {
-    Serial.println(resultSet);
-}
-``` 
-
-InfluxDB query result set is returned in the CSV format, where the first line contains column names:
-```CSV
-,result,table,_start,_stop,_time,_value,SSID,_field,_measurement,device
-,_result,0,2019-12-11T12:39:49.632459453Z,2019-12-12T12:39:49.632459453Z,2019-12-12T12:26:25Z,-68,666G,rssi,wifi_status,ESP8266
-```
-This library also provides a couple of helper methods for parsing such a result set.
-
-If the query results in an empty result set, the server returns an empty response. As the empty result returned from the `query` function indicates an error,
-use `wasLastQuerySuccessful()` method to determine final status.
-
-Complete source code is available in [Query example](examples/Query/Query.ino).
-
 ## Troubleshooting
 All db methods return status. Value `false` means something went wrong. Call `getLastErrorMessage()` to get the error message.
 

library.properties

@@ -4,7 +4,7 @@ author=Tobias Schürg, Influxdata
 maintainer=Tobias Schürg, InfluxData
 sentence=InfluxDB Client for Arduino. 
 url=https://github.com/tobiasschuerg/InfluxDB-Client-for-Arduino
-paragraph=This library allows writing and reading data from InfluxDB server or InfluxDB Cloud. Supports authentication, secure communication over TLS, batching and retrying.
+paragraph=This library allows writing data to InfluxDB server or InfluxDB Cloud. Supports authentication, secure communication over TLS, batching and retrying.
 category=Data Storage
 architectures=*
 includes=InfluxDbClient.h