Documentation

Go client library for InfluxDB v3

The InfluxDB v3 influxdb3-go Go client library integrates with Go scripts and applications to write and query data stored in an InfluxDB Cloud Dedicated database.

Installation

go get github.com/InfluxCommunity/influxdb3-go

Importing the package

The influxdb3-go client library module provides the influxdb3 package.

Import the package:

import (
    "github.com/InfluxCommunity/influxdb3-go/influxdb3"
)

API reference

Function New

Create a client to interact with InfluxDB.

Syntax

New(config ClientConfig)

Initializes and returns a influxdb3.Client instance with the following:

  • Configuration and functions for writing to the database.
  • A *flight.Client and functions for querying the database.

Parameters

  • config: A ClientConfig struct with the following configuration properties:

    • Host (string): the InfluxDB Cloud Dedicated server URL
    • Token (string): a database token string
    • Database (string): the database to use for writing and querying.
    • Organization (string): Optional. The organization name or ID.
    • HTTPClient (*http.Client): Optional. Specifies a custom HTTP client, TLS configuration, or timeout to use.
    • WriteOptions (*WriteOptions): Optional. Options passed to the write client for writing to the database.
    • Headers (http.Header): Optional. Headers to include in all requests.

Examples

Create an InfluxDB client
package main

import (
    "github.com/InfluxCommunity/influxdb3-go/influxdb3"
)

func main() {
    client, err := influxdb3.New(influxdb3.ClientConfig{
        Host:       "https://cluster-id.a.influxdb.io",
        Token:      "
DATABASE_TOKEN
"
,
Database: "
DATABASE_NAME
"
,
}) defer func(client *influxdb3.Client) { err := client.Close() if err != nil { panic(err) } }(client) if(err != nil) { panic(err) } }

Replace the following configuration values:

  • DATABASE_NAME: the name of the InfluxDB database to query
  • DATABASE_TOKEN: an InfluxDB database token with read permission on the specified database

Class influxdb3.Client

Function Client.Query()

Query data from InfluxDB v3 using SQL.

Syntax

client.Query(ctx context.Context, query string)

Sends a Flight query request with SQL to InfluxDB.

Returns the following:

  • A custom iterator (*QueryIterator) for accessing query result data and metadata.
  • An error, if any.

Parameters

  • ctx (context.Context): the context to use for the request
  • query (string): the SQL query to execute.

Examples

Query using SQL
query := `SELECT *
  FROM home
  WHERE time >= '2022-01-02T08:00:00Z'
  AND time <= '2022-01-02T20:00:00Z'`

iterator, err := client.Query(context.Background(), query)

Function Client.QueryWithOptions()

Query data from InfluxDB v3 with query options such as query type for querying with InfluxQL.

Syntax

client.QueryWithOptions(ctx context.Context, options *QueryOptions, query string)

Sends a query request with the specified query options to InfluxDB.

Returns the following:

  • A custom iterator (*QueryIterator) for accessing query result data and metadata.
  • An error, if any.

Parameters

  • ctx (context.Context): the context to use for the request
  • options: query options (query type, optional database)
  • query (string): the SQL or InfluxQL query to execute.

Examples

Query using InfluxQL
query := `SELECT *
  FROM home
  WHERE time >= 1641124000s
  AND time <= 1641124000s + 8h`
queryOptions := influxdb3.QueryOptions{QueryType: influxdb3.InfluxQL}
iterator, err := client.QueryWithOptions(context.Background(), &queryOptions, query)

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InfluxDB Clustered general availability

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