### Run the browser example application

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/client-libraries/v2/javascript/browser/index.md

Start the example application which will be accessible at http://localhost:3001/examples/index.html. Ensure you have updated the environment configuration file `./env_browser.js`.

```shell
npm run browser
```

--------------------------------

### Run the example browser application

Source: https://docs.influxdata.com/influxdb3/clustered/reference/client-libraries/v2/javascript/browser/index.md

Start the example browser application using npm. This command makes the application accessible at http://localhost:3001/examples/index.html.

```sh
npm run browser
```

--------------------------------

### Run InfluxQL Query Example

Source: https://docs.influxdata.com/influxdb3/cloud-serverless/query-data/execute-queries/client-libraries/go/index.md

Provides instructions on how to set up and run the Go client example. This includes creating a main.go file, installing dependencies, building, and executing the program to see query results.

```go
package main

func main() {
  Query()
}

```

```sh
go build && go run main.go

```

--------------------------------

### Install InfluxDB 3 Go Client Library

Source: https://docs.influxdata.com/influxdb3/core/write-data/client-libraries/index.md

Initialize your Go module and then use `go get` to install the Go client library.

```bash
go mod init path/to/project/dir && cd $_
go get github.com/InfluxCommunity/influxdb3-go/v2/influxdb3
```

--------------------------------

### Start Another Query Node

Source: https://docs.influxdata.com/influxdb3/enterprise/get-started/multi-server

This example demonstrates starting a second query node to enhance read capacity and availability. It uses a different node ID while maintaining the same cluster and storage settings.

```bash
influxdb3 serve \
  --node-id host05 \
  --cluster-id cluster01 \
  --mode query \
  --object-store s3 \
  --bucket influxdb-3-enterprise-storage \
  --aws-access-key-id <AWS_ACCESS_KEY_ID> \
  --aws-secret-access-key <AWS_SECRET_ACCESS_KEY>
```

--------------------------------

### Line Protocol Comment Example

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/syntax/line-protocol/index.md

Example of a comment in Line Protocol. Lines starting with '#' are ignored.

```shell
# This is a comment
myTable fieldKey="string value" 1556813561098000000
```

--------------------------------

### Run Go Client Example

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/query-data/execute-queries/client-libraries/go

This snippet shows how to set up a main function to execute the query logic and then build and run the Go program from the terminal. Ensure you have the necessary packages installed.

```go
package main

func main() {
  Query()
}

```

```bash
go build && go run influxdb_go_client
```

--------------------------------

### Install multiple Python packages

Source: https://docs.influxdata.com/influxdb3/core/reference/cli/influxdb3/install/package/index.md

Install several Python packages simultaneously by listing them space-separated after the command. This example installs `pint`, `pandas`, and `requests`.

```bash
influxdb3 install package pint pandas requests
```

--------------------------------

### Start InfluxDB 3 Service (systemctl)

Source: https://docs.influxdata.com/influxdb3/enterprise/admin/upgrade/index.md

Starts the InfluxDB 3 service using systemctl after a new version has been installed.

```bash
sudo systemctl start influxdb3
```

--------------------------------

### Example: Basic Write Monitoring Setup and Query

Source: https://docs.influxdata.com/influxdb3/core/plugins/library/examples/wal-plugin/index.md

Sets up basic write monitoring and demonstrates writing test data, then querying the generated write reports.

```bash
# Create the monitoring trigger
influxdb3 create trigger \
  --database testdb \
  --plugin-filename examples/wal_plugin/wal_plugin.py \
  --trigger-spec "all_tables" \
  write_monitor

# Write test data to various tables
influxdb3 write \
  --database testdb \
  "temperature,location=office value=22.5"
  
influxdb3 write \
  --database testdb \
  "humidity,location=office value=45.2"
  
influxdb3 write \
  --database testdb \
  "pressure,location=office value=1013.25"

# The plugin automatically generates write reports in the `write_reports` measurement.

# Query the write reports
influxdb3 query \
  --database testdb \
  "SELECT * FROM write_reports ORDER BY time DESC"
```

--------------------------------

### View Resource Details

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/cli/influxctl/management/list

To get detailed information about a specific resource, use the `get` command followed by the resource type and its ID. For example, to get details of a specific bucket:

```bash
influxctl management get bucket <bucket-id>
```

--------------------------------

### Navigate to examples directory

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/client-libraries/v2/javascript/browser/index.md

Change the current directory to the examples folder within the cloned repository.

```shell
cd examples
```

--------------------------------

### Install packages using a specific package manager

Source: https://docs.influxdata.com/influxdb3/core/reference/cli/influxdb3/install/package/index.md

Force the use of a particular package manager, such as `uv`, for installing Python packages. This example installs `prophet` and `adtk` using `uv`.

```bash
influxdb3 install package \
  --package-manager uv \
  prophet adtk
```

--------------------------------

### EXPLAIN ANALYZE Statement Example

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/influxql/index.md

An example of using the EXPLAIN ANALYZE statement to get runtime performance and storage data for a query.

```sql
explain analyze select mean(usage_steal) from cpu where time >= '2018-02-22T00:00:00Z' and time < '2018-02-22T12:00:00Z'
```

--------------------------------

### Go Project Setup and Dependencies

Source: https://docs.influxdata.com/influxdb3/cloud-serverless/get-started/write?t=Nodejs

This command installs Go dependencies and runs the main application. Ensure your Go modules are initialized (`go mod init`).

```bash
go mod tidy && go run main.go
```

--------------------------------

### Create a table with custom partitioning

Source: https://docs.influxdata.com/influxdb3/clustered/reference/cli/influxctl/table/create/index.md

This example demonstrates creating a table with a custom partition template. It partitions by two tags (`room` and `sensor-type`), buckets `customerID` tag values into 1000 groups, and partitions by day using the time format '%Y-%m-%d'. Replace `DATABASE_NAME` and `TABLE_NAME` with your actual database and table names.

```bash
influxctl table create \
  --template-tag room \
  --template-tag sensor-type \
  --template-tag-bucket customerID,1000 \
  --template-timeformat '%Y-%m-%d' \
  DATABASE_NAME \
  TABLE_NAME
```

--------------------------------

### Create a table with a specific partition key

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/cli/influxctl/table/create

This example shows how to create a table and define a partition key. Partitioning helps optimize query performance by distributing data.

```bash
influxctl table create --database "my-db" --name "my-table" --partition-key "host"
```

--------------------------------

### Example: Start InfluxDB with Offline Admin Token

Source: https://docs.influxdata.com/influxdb3/core/reference/config-options/index.md

Shows how to start the InfluxDB server using a pre-generated offline admin token file.

```bash
# Generate an admin token offline
influxdb3 create token \
  --admin \
  --name "example-admin-token" \
  --expiry 1d \
  --offline \
  --output-file ./path/to/admin-token.json

# Start InfluxDB 3 Core using the generated token
influxdb3 serve --admin-token-file ./path/to/admin-token.json
```

--------------------------------

### Create a table with multiple options

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/cli/influxctl/table/create

This comprehensive example shows how to create a table specifying the database, name, retention period, schema, partition key, and cluster key all in one command.

```bash
influxctl table create --database "my-db" --name "my-table" --retention-period 720h --schema "time:ts,sensor_id:str,temperature:float,humidity:float" --partition-key "sensor_id" --cluster-key "time"
```

--------------------------------

### Example AppInstance Resource with Admin Section

Source: https://docs.influxdata.com/influxdb3/clustered/reference/release-notes/clustered

An example of an AppInstance resource that previously required an admin section for identity provider setup. This section is now optional.

```yaml
apiVersion: kubecfg.dev/v1alpha1
kind: AppInstance
metadata:
  name: influxdb
  namespace: influxdb
spec:
  package:
    image: <IMAGE>
    apiVersion: influxdata.com/v1alpha1
    spec:
      # ... other spec fields elided ...
      admin:
        users:
          # - ... user entries elided ...
        dsn:
          valueFrom:
            # ... dsn source elided ...
        identityProvider: <PROVIDER>
        jwksEndpoint: <JWKS_ENDPOINT>
```

--------------------------------

### Create an organization with a description

Source: https://docs.influxdata.com/influxdb3/cloud-serverless/reference/cli/influx/org/create/index.md

This example demonstrates creating an organization and providing a descriptive text for it. Authentication credentials should be pre-configured.

```sh
influx org create \
  --name example-org \
  --description "Example organization description"
```

--------------------------------

### Install Packages and Serve with Disabled Package Manager

Source: https://docs.influxdata.com/influxdb3/core/plugins/index.md

First, install required Python packages, then start the InfluxDB 3 server with the package manager disabled. This is useful for environments where runtime package installation is not permitted.

```bash
# Install packages first
influxdb3 install package pandas requests numpy

# Then start with disabled package manager
influxdb3 serve \
  --plugin-dir ~/.plugins \
  --package-manager disabled
```

--------------------------------

### Create a Bucket Schema with a Description

Source: https://docs.influxdata.com/influxdb3/cloud-serverless/reference/cli/influx/bucket-schema/create

This example shows how to create a bucket schema and provide a description for it.

```bash
influx bucket schema create --bucket my-bucket --type "measurement" --schema "{\"measurement\": \"cpu\", \"fields\": {\"usage_user\": \"float\"}}" --description "CPU usage data"
```

--------------------------------

### Create a bucket with a description

Source: https://docs.influxdata.com/influxdb3/cloud-serverless/reference/cli/influx/bucket/create/index.md

Creates a bucket named 'example-bucket' and assigns it a descriptive string. Authentication credentials are required.

```sh
influx bucket create \
  --name example-bucket \
  --description "Example bucket description"
```

--------------------------------

### Install Go Client Library

Source: https://docs.influxdata.com/influxdb3/core/reference/client-libraries/flight/go-flight

Install the InfluxDB Go client library using go get. This is the first step to interacting with InfluxDB from your Go applications.

```go
go get -u github.com/influxdata/influxdb-client-go/v2
```

--------------------------------

### Example of using the NOW() function

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/sql/functions

Demonstrates how to get the current timestamp using the NOW() function.

```sql
SELECT NOW()
```

--------------------------------

### Go Project Setup

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/write-data/line-protocol/client-libraries

Steps to set up a Go project for writing data to InfluxDB 3 using the influxdb3-go client library.

```bash
mkdir iot-starter-go && cd $_
go mod init iot-starter
go get github.com/InfluxCommunity/influxdb3-go/v2
```

--------------------------------

### Invalid Table Names

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/naming-restrictions/index.md

An example of an invalid table name that starts with an underscore.

```text
_internal          # Starts with underscore (not recommended)
```

--------------------------------

### Initialize Go Module and Create File

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/get-started/write?t=Go

These commands set up a new Go project directory and create the main Go file for writing data.

```shell
mkdir -p influxdb_go_client && cd influxdb_go_client
go mod init influxdb_go_client
touch write.go
```

--------------------------------

### Initialize Go Project Directory

Source: https://docs.influxdata.com/influxdb3/core/write-data/client-libraries/index.md

Create a directory for your Go module and initialize it.

```sh
mkdir iot-starter-go && cd $_
go mod init iot-starter
```

--------------------------------

### Install Python Packages using HTTP API

Source: https://docs.influxdata.com/influxdb3/enterprise/plugins/index.md

Use the HTTP API to programmatically install Python packages into the Processing Engine's environment. This example installs 'pandas', 'requests', and 'numpy'. Replace AUTH_TOKEN with your admin token.

```bash
# Use the HTTP API to install Python packages
curl -X POST "localhost:8181/api/v3/configure/plugin_environment/install_packages" \
  --header "Authorization: Bearer AUTH_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{ \
    "packages": ["pandas", "requests", "numpy"] \
  }'
```

--------------------------------

### Serve with Disabled Package Manager

Source: https://docs.influxdata.com/influxdb3/core/plugins/index.md

Start the InfluxDB 3 server with package installation disabled for secure or air-gapped environments. This maintains Processing Engine functionality while blocking package installations.

```bash
influxdb3 serve \
  --node-id node0 \
  --object-store file \
  --data-dir ~/.influxdb3 \
  --plugin-dir ~/.plugins \
  --package-manager disabled
```

--------------------------------

### Create a database with a custom partition template using influxctl CLI

Source: https://docs.influxdata.com/influxdb3/clustered/admin/custom-partitions/define-custom-partitions

This example demonstrates how to create a new database named 'example-db' and apply a custom partition template using the `influxctl` command-line interface. The template partitions data by the 'room' and 'sensor-type' tags, buckets 'customerID' tag values into 500 groups, and partitions by day.

```APIDOC
## Create a database with a custom partition template using influxctl CLI

### Description
Creates a new database with a custom partition template using the `influxctl` CLI. The partition template includes partitioning by specific tags, bucketing tag values, and time-based partitioning.

### Command
```bash
influxctl database create \
  --template-tag room \
  --template-tag sensor-type \
  --template-tag-bucket customerID,500 \
  --template-timeformat '%Y-%m-%d' \
  example-db
```

### Parameters
- `--template-timeformat` (string): Specifies the time part in the partition template. Accepted values are `%Y-%m-%d` (daily), `%Y-%m` (monthly), or `%Y` (annually).
- `--template-tag` (string): An InfluxDB tag to use in the partition template.
- `--template-tag-bucket` (string): An InfluxDB tag and the number of buckets to group tag values into. Format: `tagKey,N`.
- `example-db` (string): The name of the database to create.
```

--------------------------------

### Generate Admin Token and Start InfluxDB

Source: https://docs.influxdata.com/influxdb3/enterprise/reference/config-options

Generates an admin token offline and then starts the InfluxDB server using the generated token. This is useful for initial setup and secure token management.

```bash
# Generate an admin token offline
influxdb3 create token \
  --name "example-token" \
  --permission "db:db1,db2:read,write" \
  --permission "db:db3:read" \
  --expiry 1d \
  --offline \
  --create-databases db1,db2 \
  --output-file 
./path/to/tokens.json


# Start InfluxDB 3 Enterprise using the generated token
influxdb3 serve --permission-tokens-file 
./path/to/tokens.json
```

--------------------------------

### Copy Example Configuration File

Source: https://docs.influxdata.com/influxdb3/clustered/install/set-up-cluster/configure-cluster/directly/index.md

Use this command to copy the example customer YAML file to create your own cluster configuration file.

```bash
cp example-customer.yml myinfluxdb.yml
```

--------------------------------

### Example of using the PI() function

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/reference/sql/functions

Demonstrates how to get the value of PI using the PI() function.

```sql
SELECT PI()
```

--------------------------------

### Example: Monitoring with Special Table Handling Setup and Query

Source: https://docs.influxdata.com/influxdb3/core/plugins/library/examples/wal-plugin/index.md

Sets up write monitoring with doubled counting for a specific table and demonstrates writing data and querying reports.

```bash
# Create trigger with special handling
influxdb3 create trigger \
  --database testdb \
  --plugin-filename examples/wal_plugin/wal_plugin.py \
  --trigger-spec "all_tables" \
  --trigger-arguments 'double_count_table=temperature' \
  write_monitor_special

# Write test data
influxdb3 write \
  --database testdb \
  "temperature,location=office value=22.5"
  
influxdb3 write \
  --database testdb \
  "humidity,location=office value=45.2"

# Query the write reports
influxdb3 query \
  --database testdb \
  "SELECT * FROM write_reports ORDER BY time DESC"
```

--------------------------------

### Install Go Packages and Run Program

Source: https://docs.influxdata.com/influxdb3/cloud-dedicated/get-started/query

Command to install Go dependencies, build the module, and run the program.

```bash
go mod tidy && go run influxdb_go_client
```