Class: Ocrb::Extractors::OpenAi

Inherits:
Object
  • Object
show all
Defined in:
lib/ocrb.rb

Instance Method Summary collapse

Constructor Details

#initialize(url: 'http://127.0.0.1:1234/v1', model: 'zai-org/glm-4.6v-flash', api_key: 'asdf', json: false) ⇒ OpenAi

Returns a new instance of OpenAi.



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# File 'lib/ocrb.rb', line 23

def initialize(
  # url: 'http://localhost:11434/v1',
  # model: 'glm-ocr:bf16',
  url: 'http://127.0.0.1:1234/v1',
  model: 'zai-org/glm-4.6v-flash',
  api_key: 'asdf',
  json: false
)
  @uri = URI(File.join(url, 'chat/completions'))
  @api_key = api_key
  @model = model
  @json = json
end

Instance Method Details

#extract(image_path, prompt) ⇒ Object 



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# File 'lib/ocrb.rb', line 37

def extract(image_path, prompt)
  req_body = {
    model: @model,
    messages: [
      {
        role: 'user',
        content: [
          { type: 'text', text: prompt },
          { type: 'image_url', image_url: { url: image_data_url(image_path) } }
        ]
      }
    ]
  }
  req_body.merge!(response_format)

  request = Net::HTTP::Post.new(@uri)
  request['Authorization'] = "Bearer #{@api_key}"
  request['Content-Type'] = 'application/json'
  request.body = JSON.generate(req_body)

  response = Net::HTTP.start(@uri.host, @uri.port, use_ssl: false) do |http|
    http.request(request)
  end
  payload = JSON.parse(response.body)

  unless response.is_a?(Net::HTTPSuccess)
    message = response.body
    raise "OpenAI OCR failed: #{message}"
  end

  payload.dig('choices', 0, 'message', 'content').to_s
end