Getting Started

Quick Start

Install the Daco CLI and define your first data product in minutes.

Installation

macOS / Linux (Homebrew)

brew install dacolabs/tap/daco

Windows (Scoop)

scoop install daco

Go (any platform)

go install github.com/dacolabs/cli/cmd/daco@latest

Verify your installation:

daco --version

Initialize a project

Create a directory for your data product and run daco init:

mkdir customer-analytics && cd customer-analytics
daco init --name "Customer Analytics" --version "1.0.0"

This creates two files:

customer-analytics/
├── daco.yaml          # Project config
└── spec/
    └── opendpi.yaml   # Your data product spec

daco.yaml tells the CLI where your spec lives. You commit both files alongside your pipeline code.

Add a connection

A connection describes where your data lives — a database, message broker, object store, or any infrastructure endpoint.

daco connections add \
  --name analytics_db \
  --type postgresql \
  --host analytics.db.example.com

Run daco connections add with no flags to use the interactive form instead.

Add a port

A port is a named data interface — a table, topic, file path, or API endpoint that your product exposes.

daco ports add \
  --name daily_metrics \
  --connection analytics_db \
  --location customer_daily_metrics

This creates spec/schemas/daily_metrics.schema.yaml. Open that file and define the shape of your data using JSON Schema:

type: object
properties:
  customer_id:
    type: string
  date:
    type: string
    format: date
  total_orders:
    type: integer
required:
  - customer_id
  - date
  - total_orders

Translate to a target format

Once your schema is defined, generate framework-specific code:

daco ports translate --all --format pyspark --output models/

Daco writes a ready-to-use file to models/. Run the same command with a different --format to get the same schema as Pydantic, Go structs, Avro, Protobuf, and more.

Review your product

Get a full overview of what you've defined:

daco describe

What's next

Next →OpenDPI Specification