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make llm service and options configurable from environnment variables #1258

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make llm service and options configurable from environnment variables #1258

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15 changes: 12 additions & 3 deletions app/services/llm_service.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,16 @@ def make_user_prompt query_doc_pair
# rubocop:disable Metrics/MethodLength
# rubocop:disable Metrics/AbcSize
def get_llm_response user_prompt, system_prompt
conn = Faraday.new(url: 'https://api.openai.com') do |f|
llm_service_url = ENV['LLM_SERVICE_URL'] || 'https://api.openai.com'
llm_model = ENV['LLM_MODEL'] || 'gpt-4o'
llm_key = ENV['LLM_KEY'] || @openai_key
llm_timeout = ENV['LLM_TIMEOUT'] || 30
conn = Faraday.new(
url: llm_service_url,
request: {
timeout: llm_timeout,
open_timeout: llm_timeout
} ) do |f|
f.request :json
f.response :json
f.adapter Faraday.default_adapter
Expand All @@ -62,7 +71,7 @@ def get_llm_response user_prompt, system_prompt
end

body = {
model: 'gpt-4o',
model: llm_model,
response_format: { type: 'json_object' },
messages: [
{ role: 'system', content: system_prompt },
Expand All @@ -71,7 +80,7 @@ def get_llm_response user_prompt, system_prompt
}

response = conn.post('/v1/chat/completions') do |req|
req.headers['Authorization'] = "Bearer #{@openai_key}"
req.headers['Authorization'] = "Bearer #{llm_key}"
req.headers['Content-Type'] = 'application/json'
req.body = body
end
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