Use the influxdb3 CLI to write data
Use the influxdb3 CLI
to write line protocol data to InfluxDB 3 Core.
Use the API for batching and higher-volume writes
The influxdb3 CLI lets you quickly get started writing data to InfluxDB 3 Core.
For batching and higher-volume write workloads, use
API client libraries
or Telegraf.
Construct line protocol
With a basic understanding of line protocol, you can construct data in line protocol format and write it to InfluxDB 3 Core. Consider a use case where you collect data from sensors in your home. Each sensor collects temperature, humidity, and carbon monoxide readings. To collect this data, use the following schema:
- table:
home- tags
room: Living Room or Kitchen
- fields
temp: temperature in °C (float)hum: percent humidity (float)co: carbon monoxide in parts per million (integer)
- timestamp: Unix timestamp in second precision
- tags
The following line protocol represents the schema described above:
For this tutorial, you can either pass this line protocol directly to the
influxdb3 write command as a string, via stdin, or you can save it to and
read it from a file.
Write the line protocol to InfluxDB
Use the influxdb3 write command
to write the home sensor sample data to InfluxDB 3 Core.
Provide the following:
The database name using the
--databaseoptionYour InfluxDB 3 Core authorization token using the
-t,--tokenoptionLine protocol. Provide the line protocol in one of the following ways:
- a string
- a path to a file that contains the line protocol using the
--fileoption - from stdin
InfluxDB 3 Core auto-detects the timestamp precision by identifying which precision results in timestamps relatively close to “now.”
In your terminal, enter the following command to create the sample data file:
echo 'home,room=Living\ Room temp=21.1,hum=35.9,co=0i 1641024000 home,room=Kitchen temp=21.0,hum=35.9,co=0i 1641024000 home,room=Living\ Room temp=21.4,hum=35.9,co=0i 1641027600 home,room=Kitchen temp=23.0,hum=36.2,co=0i 1641027600 home,room=Living\ Room temp=21.8,hum=36.0,co=0i 1641031200 home,room=Kitchen temp=22.7,hum=36.1,co=0i 1641031200 home,room=Living\ Room temp=22.2,hum=36.0,co=0i 1641034800 home,room=Kitchen temp=22.4,hum=36.0,co=0i 1641034800 home,room=Living\ Room temp=22.2,hum=35.9,co=0i 1641038400 home,room=Kitchen temp=22.5,hum=36.0,co=0i 1641038400 home,room=Living\ Room temp=22.4,hum=36.0,co=0i 1641042000 home,room=Kitchen temp=22.8,hum=36.5,co=1i 1641042000' > ./home.lpEnter the following CLI command to write the data from the sample file:
influxdb3 write \ --databaseDATABASE_NAME\ --tokenAUTH_TOKEN\ --file ./home.lp
In your terminal, enter the following command to create the sample data file:
echo 'home,room=Living\ Room temp=21.1,hum=35.9,co=0i 1641024000 home,room=Kitchen temp=21.0,hum=35.9,co=0i 1641024000 home,room=Living\ Room temp=21.4,hum=35.9,co=0i 1641027600 home,room=Kitchen temp=23.0,hum=36.2,co=0i 1641027600 home,room=Living\ Room temp=21.8,hum=36.0,co=0i 1641031200 home,room=Kitchen temp=22.7,hum=36.1,co=0i 1641031200 home,room=Living\ Room temp=22.2,hum=36.0,co=0i 1641034800 home,room=Kitchen temp=22.4,hum=36.0,co=0i 1641034800 home,room=Living\ Room temp=22.2,hum=35.9,co=0i 1641038400 home,room=Kitchen temp=22.5,hum=36.0,co=0i 1641038400 home,room=Living\ Room temp=22.4,hum=36.0,co=0i 1641042000 home,room=Kitchen temp=22.8,hum=36.5,co=1i 1641042000' > ./home.lpEnter the following CLI command to write the data from the sample file:
cat ./home.lp | influxdb3 write \ --databaseDATABASE_NAME\ --tokenAUTH_TOKEN
Replace the following:
DATABASE_NAME: the name of the database to write toAUTH_TOKEN: your InfluxDB 3 Core authorization tokenWhile in beta, InfluxDB 3 Core does not require an authorization token.
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