InfluxDB Line Protocol

Authentication

GreptimeDB is compatible with InfluxDB’s line protocol authentication format, both v1 and v2.

V2 protocol

InfluxDB’s V2 protocol uses a format much like HTTP’s standard basic authentication scheme. We can write data easily through InfluxDB’s line protocol.

  1. curl 'http://localhost:4000/v1/influxdb/api/v2/write?db=public' \
  2.     -H 'authorization: token greptime_user:greptime_pwd' \
  3.     -d 'monitor,host=host1 cpu=1.2 1664370459457010101'

Note: replace greptime_user(username), greptime_pwd(password) with your configured username and password.

V1 protocol

GreptimeDB also supports InfluxDB’s V1 authentication format. Add u for user and p for password to the HTTP query string as shown below:

  1. curl 'http://localhost:4000/v1/influxdb/write?db=public&u=greptime_user&p=greptime_pwd' \
  2.     -d 'monitor,host=host2 cpu=1.2 1678679359062504960'

Note: replace greptime_user(username), greptime_pwd(password) with your configured username and password.

PING

Additionally, GreptimeDB also provides support for the ping and health APIs of InfluxDB.

Use curl to request ping API.

  1. curl -i "127.0.0.1:4000/v1/influxdb/ping"
  1. HTTP/1.1 204 No Content
  2. date: Wed, 22 Feb 2023 02:29:44 GMT

Use curl to request health API.

  1. curl -i "127.0.0.1:4000/v1/influxdb/health"
  1. HTTP/1.1 200 OK
  2. content-length: 0
  3. date: Wed, 22 Feb 2023 02:30:46 GMT

Write data

Please refer to write data.