在第一个api调用之后进行第二个api调用将返回数据

 const searchVenues = (type) => {
  logger.debug('getVenues : type = ' + type);

  const config = {
    url: urlAPIServer + '/venue/available',
    qs: {
      type,
    },
    headers: {
      'x-api-key': dataApiKey
    }
  };

  return new BluebirdPromise((resolve, reject) => {
    request.get(config, (err, response, body) => {
      if (err) {
        console.error(err);
        reject(err);
      } else {
        resolve(JSON.parse(body));
      }
    });
  });
};

const getVenuesWithCuisine = () => {
  logger.debug('getVenuesWithCuisine');

  const config = {
    url: urlAPIServer + '/venue/viewvenuewithcuisine',
    headers: {
      'x-api-key': dataApiKey
    }
  };

  return new BluebirdPromise((resolve, reject) => {
    request.get(config, (err, response, body) => {
      if (err) {
        console.error(err);
        reject(err);
      } else {
        resolve(JSON.parse(body));
      }
    });
  });
};

分别调用函数从API获取数据并将其绑定到变量。

searchVenues(venueType).then((venues) => {
      checkContextTimeout(context);
      conversationContext.venueType = venueType;
      conversationContext.venues = venues;
      context.skill = conversationContext; 
    });

    getVenuesWithCuisine().then((venueswithcuisines) => {
      conversationContext.venue_details = venueswithcuisines[0}["venue_details"];
      conversationContext.cuisines = venueswithcuisines[1]["cuisines"];
      conversationContext.venueType = venueType;
      conversationContext.venues = venuesJson.venues;
      continueConversation(request, response, context);
    });

conversationContext.venues = venues 为空。

如何使这些API调用同步,以便第二个API调用仅在第一个API调用返回数据之后进行。