Function createGravityProvider

web/src/lib/ad-providers/gravity.ts:85–181

(config: { apiKey: string })

}

export function createGravityProvider(config: { apiKey: string }): AdProvider {
  return {
    id: 'gravity',
    fetchAd: async (input: FetchAdInput): Promise<FetchAdResult> => {
      const {
        userId,
        userEmail,
        sessionId,
        clientIp,
        device,
        messages = [],
        testMode,
        logger,
        fetch,
      } = input

      const filteredMessages = prepareGravityMessages(messages)

      const placementIds =
        input.surface === 'waiting_room'
          ? WAITING_ROOM_PLACEMENT_IDS
          : CHOICE_PLACEMENT_IDS

      const placements = placementIds.map((id) => ({
        placement: 'below_response',
        placement_id: id,
      }))

      const deviceBody = clientIp
        ? {
            ip: clientIp,
            ...(device?.os ? { os: device.os } : {}),
            ...(device?.timezone ? { timezone: device.timezone } : {}),
            ...(device?.locale ? { locale: device.locale } : {}),
          }
        : undefined

      const requestBody = {
        messages: filteredMessages,
        sessionId: sessionId ?? userId,
        placements,
        testAd: testMode,
        relevancy: 0,
        ...(deviceBody ? { device: deviceBody } : {}),
        user: {
          id: userId,
          email: userEmail ?? undefined,
        },
      }

      const response = await fetch(GRAVITY_URL, {
        method: 'POST',
        headers: {
          Authorization: `Bearer ${config.apiKey}`,
          'Content-Type': 'application/json',
        },
        body: JSON.stringify(requestBody),
      })