No API Key defined

Question

Hi I am new to rails and I am building a flickr feed app that lets a user display photos from a flickr feed when they enter their id, however I am getting this error when I go to the localhost:3000:

Flickr::FlickrAppNotConfigured in StaticPagesController#index
No API key defined!

# application.yml

flickr_key: "Not showing this"
flickr_secret: "Not showing this either"

static_pages_controller.rb:

class StaticPagesController < ApplicationController
  require 'flickr'

  def index
    flickr = Flickr.new
    unless params[:user_id].blank?
      @photos = flickr.photos.search(user_id: params[:user_id])
    else
      @photos = flickr.photos.getRecent
    end
  end
end

Gemfile:

source "https://rubygems.org"
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

ruby "3.1.2"

# Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
gem "rails", "~> 7.0.4"

# The original asset pipeline for Rails [https://github.com/rails/sprockets-rails]
gem "sprockets-rails"

# Use sqlite3 as the database for Active Record
gem "sqlite3", "~> 1.4"

# Use the Puma web server [https://github.com/puma/puma]
gem "puma", "~> 5.0"

# Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails]
gem "importmap-rails"

# Hotwire's SPA-like page accelerator [https://turbo.hotwired.dev]
gem "turbo-rails"

# Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev]
gem "stimulus-rails"

# Build JSON APIs with ease [https://github.com/rails/jbuilder]
gem "jbuilder"

# Use Redis adapter to run Action Cable in production
# gem "redis", "~> 4.0"

# Use Kredis to get higher-level data types in Redis [https://github.com/rails/kredis]
# gem "kredis"

# Use Active Model has_secure_password [https://guides.rubyonrails.org/active_model_basics.html#securepassword]
# gem "bcrypt", "~> 3.1.7"

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]

# Reduces boot times through caching; required in config/boot.rb
gem "bootsnap", require: false

gem "figaro"
gem 'flickr', '~> 2.1'
# Use Sass to process CSS
# gem "sassc-rails"

# Use Active Storage variants [https://guides.rubyonrails.org/active_storage_overview.html#transforming-images]
# gem "image_processing", "~> 1.2"

group :development, :test do
  # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
  gem "debug", platforms: %i[ mri mingw x64_mingw ]
end

group :development do
  # Use console on exceptions pages [https://github.com/rails/web-console]
  gem "web-console"

  # Add speed badges [https://github.com/MiniProfiler/rack-mini-profiler]
  # gem "rack-mini-profiler"

  # Speed up commands on slow machines / big apps [https://github.com/rails/spring]
  # gem "spring"
end

group :test do
  # Use system testing [https://guides.rubyonrails.org/testing.html#system-testing]
  gem "capybara"
  gem "selenium-webdriver"
  gem "webdrivers"
end

Gemfile.lock:

GEM
  remote: https://rubygems.org/
  specs:
    actioncable (7.0.4)
      actionpack (= 7.0.4)
      activesupport (= 7.0.4)
      nio4r (~> 2.0)
      websocket-driver (>= 0.6.1)
    actionmailbox (7.0.4)
      actionpack (= 7.0.4)
      activejob (= 7.0.4)
      activerecord (= 7.0.4)
      activestorage (= 7.0.4)
      activesupport (= 7.0.4)
      mail (>= 2.7.1)
      net-imap
      net-pop
      net-smtp
    actionmailer (7.0.4)
      actionpack (= 7.0.4)
      actionview (= 7.0.4)
      activejob (= 7.0.4)
      activesupport (= 7.0.4)
      mail (~> 2.5, >= 2.5.4)
      net-imap
      net-pop
      net-smtp
      rails-dom-testing (~> 2.0)
    actionpack (7.0.4)
      actionview (= 7.0.4)
      activesupport (= 7.0.4)
      rack (~> 2.0, >= 2.2.0)
      rack-test (>= 0.6.3)
      rails-dom-testing (~> 2.0)
      rails-html-sanitizer (~> 1.0, >= 1.2.0)
    actiontext (7.0.4)
      actionpack (= 7.0.4)
      activerecord (= 7.0.4)
      activestorage (= 7.0.4)
      activesupport (= 7.0.4)
      globalid (>= 0.6.0)
      nokogiri (>= 1.8.5)
    actionview (7.0.4)
      activesupport (= 7.0.4)
      builder (~> 3.1)
      erubi (~> 1.4)
      rails-dom-testing (~> 2.0)
      rails-html-sanitizer (~> 1.1, >= 1.2.0)
    activejob (7.0.4)
      activesupport (= 7.0.4)
      globalid (>= 0.3.6)
    activemodel (7.0.4)
      activesupport (= 7.0.4)
    activerecord (7.0.4)
      activemodel (= 7.0.4)
      activesupport (= 7.0.4)
    activestorage (7.0.4)
      actionpack (= 7.0.4)
      activejob (= 7.0.4)
      activerecord (= 7.0.4)
      activesupport (= 7.0.4)
      marcel (~> 1.0)
      mini_mime (>= 1.1.0)
    activesupport (7.0.4)
      concurrent-ruby (~> 1.0, >= 1.0.2)
      i18n (>= 1.6, < 2)
      minitest (>= 5.1)
      tzinfo (~> 2.0)
    addressable (2.8.1)
      public_suffix (>= 2.0.2, < 6.0)
    bindex (0.8.1)
    bootsnap (1.15.0)
      msgpack (~> 1.2)
    builder (3.2.4)
    capybara (3.38.0)
      addressable
      matrix
      mini_mime (>= 0.1.3)
      nokogiri (~> 1.8)
      rack (>= 1.6.0)
      rack-test (>= 0.6.3)
      regexp_parser (>= 1.5, < 3.0)
      xpath (~> 3.2)
    concurrent-ruby (1.1.10)
    crass (1.0.6)
    debug (1.7.0)
      irb (>= 1.5.0)
      reline (>= 0.3.1)
    erubi (1.11.0)
    figaro (1.2.0)
      thor (>= 0.14.0, < 2)
    flickr (2.1.0)
    globalid (1.0.0)
      activesupport (>= 5.0)
    i18n (1.12.0)
      concurrent-ruby (~> 1.0)
    importmap-rails (1.1.5)
      actionpack (>= 6.0.0)
      railties (>= 6.0.0)
    io-console (0.5.11)
    irb (1.5.1)
      reline (>= 0.3.0)
    jbuilder (2.11.5)
      actionview (>= 5.0.0)
      activesupport (>= 5.0.0)
    loofah (2.19.0)
      crass (~> 1.0.2)
      nokogiri (>= 1.5.9)
    mail (2.8.0)
      mini_mime (>= 0.1.1)
      net-imap
      net-pop
      net-smtp
    marcel (1.0.2)
    matrix (0.4.2)
    method_source (1.0.0)
    mini_mime (1.1.2)
    minitest (5.16.3)
    msgpack (1.6.0)
    net-imap (0.3.1)
      net-protocol
    net-pop (0.1.2)
      net-protocol
    net-protocol (0.1.3)
      timeout
    net-smtp (0.3.3)
      net-protocol
    nio4r (2.5.8)
    nokogiri (1.13.9-x86_64-linux)
      racc (~> 1.4)
    public_suffix (5.0.0)
    puma (5.6.5)
      nio4r (~> 2.0)
    racc (1.6.0)
    rack (2.2.4)
    rack-test (2.0.2)
      rack (>= 1.3)
    rails (7.0.4)
      actioncable (= 7.0.4)
      actionmailbox (= 7.0.4)
      actionmailer (= 7.0.4)
      actionpack (= 7.0.4)
      actiontext (= 7.0.4)
      actionview (= 7.0.4)
      activejob (= 7.0.4)
      activemodel (= 7.0.4)
      activerecord (= 7.0.4)
      activestorage (= 7.0.4)
      activesupport (= 7.0.4)
      bundler (>= 1.15.0)
      railties (= 7.0.4)
    rails-dom-testing (2.0.3)
      activesupport (>= 4.2.0)
      nokogiri (>= 1.6)
    rails-html-sanitizer (1.4.3)
      loofah (~> 2.3)
    railties (7.0.4)
      actionpack (= 7.0.4)
      activesupport (= 7.0.4)
      method_source
      rake (>= 12.2)
      thor (~> 1.0)
      zeitwerk (~> 2.5)
    rake (13.0.6)
    regexp_parser (2.6.1)
    reline (0.3.1)
      io-console (~> 0.5)
    rexml (3.2.5)
    rubyzip (2.3.2)
    selenium-webdriver (4.7.1)
      rexml (~> 3.2, >= 3.2.5)
      rubyzip (>= 1.2.2, < 3.0)
      websocket (~> 1.0)
    sprockets (4.1.1)
      concurrent-ruby (~> 1.0)
      rack (> 1, < 3)
    sprockets-rails (3.4.2)
      actionpack (>= 5.2)
      activesupport (>= 5.2)
      sprockets (>= 3.0.0)
    sqlite3 (1.5.4-x86_64-linux)
    stimulus-rails (1.2.1)
      railties (>= 6.0.0)
    thor (1.2.1)
    timeout (0.3.0)
    turbo-rails (1.3.2)
      actionpack (>= 6.0.0)
      activejob (>= 6.0.0)
      railties (>= 6.0.0)
    tzinfo (2.0.5)
      concurrent-ruby (~> 1.0)
    web-console (4.2.0)
      actionview (>= 6.0.0)
      activemodel (>= 6.0.0)
      bindex (>= 0.4.0)
      railties (>= 6.0.0)
    webdrivers (5.2.0)
      nokogiri (~> 1.6)
      rubyzip (>= 1.3.0)
      selenium-webdriver (~> 4.0)
    websocket (1.2.9)
    websocket-driver (0.7.5)
      websocket-extensions (>= 0.1.0)
    websocket-extensions (0.1.5)
    xpath (3.2.0)
      nokogiri (~> 1.8)
    zeitwerk (2.6.6)

PLATFORMS
  x86_64-linux

DEPENDENCIES
  bootsnap
  capybara
  debug
  figaro
  flickr (~> 2.1)
  importmap-rails
  jbuilder
  puma (~> 5.0)
  rails (~> 7.0.4)
  selenium-webdriver
  sprockets-rails
  sqlite3 (~> 1.4)
  stimulus-rails
  turbo-rails
  tzinfo-data
  web-console
  webdrivers

RUBY VERSION
   ruby 3.1.2p20

BUNDLED WITH
   2.3.14

Answer 1

You should properly pass the credentials to client instance. As per gem docs, you have 2 ways:

# The credentials can be provided as parameters:
flickr = Flickr.new "YOUR API KEY", "YOUR SHARED SECRET"

# Alternatively, if the API key and Shared Secret are not provided, Flickr will attempt to read them from environment variables:
# ENV['FLICKR_API_KEY']
# ENV['FLICKR_SHARED_SECRET']
flickr = Flickr.new

# Flickr will raise an error if either parameter is not explicitly provided, or available via environment variables.

So be sure, if you're following the ENV approach (as it seems, since you are using figaro too), the ENV vars have the proper nanimg: FLICKR_API_KEY and FLICKR_SHARED_SECRET (instead of FLICKR_KEY and FLICKR_SECRET).