Class: Tracebook::PersistInteractionJob

Inherits:
ApplicationJob
  • Object
show all
Defined in:
app/jobs/tracebook/persist_interaction_job.rb

Overview

Background job for persisting LLM interactions.

Handles the complete persistence pipeline:

  1. Deserialize payload
  2. Apply PII redaction
  3. Calculate cost based on pricing rules
  4. Store interaction in database (with encryption)
  5. Handle large payloads via ActiveStorage
  6. Enqueue rollup job for analytics

This job is enqueued by record! when config.persist_async is true.

Examples:

Enqueuing directly

PersistInteractionJob.perform_later(
  provider: "openai",
  model: "gpt-4o",
  request_payload: { messages: messages },
  response_payload: response,
  input_tokens: 100,
  output_tokens: 50
)

Synchronous execution (testing)

interaction = PersistInteractionJob.perform_now(payload)

See Also:

Constant Summary collapse

INLINE_THRESHOLD_BYTES =

Default inline payload size threshold (64KB)

64 * 1024

Instance Method Summary collapse

Instance Method Details

#create_blob(contents, label) ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 131

def create_blob(contents, label)
  ActiveStorage::Blob.create_and_upload!(
    io: StringIO.new(contents),
    filename: "tracebook-#{label}-#{SecureRandom.uuid}.json",
    content_type: "application/json"
  )
end

#enqueue_rollup(interaction) ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 139

def enqueue_rollup(interaction)
  DailyRollupsJob.perform_later(
    date: interaction.created_at.to_date,
    provider: interaction.provider,
    model: interaction.model,
    project: interaction.project
  )
end

#from_payload(payload) ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 65

def from_payload(payload)
  attributes = payload.to_h.deep_symbolize_keys
  NormalizedInteraction.new(**attributes)
end

#inline_threshold ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 127

def inline_threshold
  Tracebook.config.inline_payload_bytes
end

#occurred_at(normalized) ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 152

def occurred_at(normalized)
  normalized.metadata && normalized.metadata["timestamp"] ? Time.parse(normalized.metadata["timestamp"].to_s) : Time.current
rescue ArgumentError
  Time.current
end

#perform(payload) ⇒ Interaction

Processes and persists an LLM interaction.

Parameters:

  • payload (Hash) —

    Normalized interaction attributes

Returns:

Raises:

  • (ActiveRecord::RecordInvalid) —

    if interaction fails validation



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 47

def perform(payload)
  normalized = from_payload(payload)
  redacted = redaction_pipeline.call(normalized)
  cost = Pricing::Calculator.call(
    provider: redacted.provider,
    model: redacted.model,
    input_tokens: redacted.input_tokens,
    output_tokens: redacted.output_tokens,
    occurred_at: occurred_at(redacted)
  )

  interaction = persist_interaction(redacted, cost)
  enqueue_rollup(interaction)
  interaction
end

#persist_interaction(normalized, cost) ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 70

def persist_interaction(normalized, cost)
  attributes = {
    provider: normalized.provider,
    model: normalized.model,
    project: normalized.project,
    request_text: normalized.request_text,
    response_text: normalized.response_text,
    input_tokens: normalized.input_tokens,
    output_tokens: normalized.output_tokens,
    total_tokens: total_tokens(normalized),
    latency_ms: normalized.latency_ms,
    status: normalized.status,
    error_class: normalized.error_class,
    error_message: normalized.error_message,
    tags: normalized.tags,
    metadata: normalized.metadata,
    parent_id: normalized.parent_id,
    session_id: normalized.session_id,
    cost_input_cents: cost.input_cents,
    cost_output_cents: cost.output_cents,
    cost_total_cents: cost.total_cents,
    currency: cost.currency || Tracebook.config.default_currency
  }

  ActiveRecord::Base.transaction do
    Interaction.create!(attributes).tap do |interaction|
      interaction.user = normalized.user if normalized.user
      persist_payloads(interaction, normalized)
      interaction.save! if interaction.changed?
    end
  end
end

#persist_payloads(interaction, normalized) ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 107

def persist_payloads(interaction, normalized)
  store_payload(:request, interaction, normalized.request_payload)
  store_payload(:response, interaction, normalized.response_payload)
end

#redaction_pipeline ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 148

def redaction_pipeline
  @redaction_pipeline ||= RedactionPipeline.new(config: Tracebook.config)
end

#store_payload(type, interaction, payload) ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 112

def store_payload(type, interaction, payload)
  return if payload.nil?

  serialized = JSON.generate(payload)
  if serialized.bytesize > inline_threshold
    blob = create_blob(serialized, "#{type}-payload")
    interaction.public_send("#{type}_payload_store=", "active_storage")
    interaction.public_send("#{type}_payload_blob_id=", blob.id)
    interaction.public_send("#{type}_payload=", nil)
  else
    interaction.public_send("#{type}_payload_store=", "inline")
    interaction.public_send("#{type}_payload=", payload)
  end
end

#total_tokens(normalized) ⇒ Object (private) 



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# File 'app/jobs/tracebook/persist_interaction_job.rb', line 103

def total_tokens(normalized)
  [ normalized.input_tokens.to_i, normalized.output_tokens.to_i ].compact.sum
end