Purchasing Power API - Ruby Gem

Purchasing Power calculates the inflation-adjusted value of money between any two time periods. Find out what $100 from 1990 is worth today, or calculate real returns on investments accounting for inflation.

Installation

Add this line to your application's Gemfile:

gem 'apiverve_purchasingpower'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install apiverve_purchasingpower

Getting Started

Get your API key at APIVerve

Basic Usage

require 'apiverve_purchasingpower'

# Initialize the client
client = APIVerve::Purchasingpower::Client.new(api_key: "YOUR_API_KEY")

# Make a request
response = client.execute({
  amount: 100,
  from: "1990",
  to: "2024"
})

# Print the response
puts response

Error Handling

begin
  response = client.execute({ amount: 100, from: "1990", to: "2024" })
  puts response["data"]
rescue APIVerve::Purchasingpower::ValidationError => e
  puts "Validation error: #{e.errors.join(', ')}"
rescue APIVerve::Purchasingpower::APIError => e
  puts "API error: #{e.message}"
  puts "Status code: #{e.status_code}"
end

Debug Mode

# Enable debug logging
client = APIVerve::Purchasingpower::Client.new(
  api_key: "YOUR_API_KEY",
  debug: true
)

Example Response

{
  "status": "ok",
  "error": null,
  "data": {
    "originalAmount": 100,
    "originalPeriod": "1990-01",
    "adjustedAmount": 242.31,
    "adjustedPeriod": "2024-01",
    "cumulativeInflation": 142.31,
    "multiplier": 2.423,
    "explanation": "$100 in 1990-01 has the same purchasing power as $242.31 in 2024-01",
    "fromCPI": 127.4,
    "toCPI": 308.417
  }
}

Documentation

For more information, visit the API Documentation.

Support

License

This gem is available under the MIT License.