trendcrawler - trendcrawlerv2 - v2 - trends - SOURCE CODE

# -*- coding: utf-8 -*-

# Define here the models for your scraped items
#
# See documentation in:
# http://doc.scrapy.org/en/latest/topics/items.html

import scrapy
from scrapy.item import Item, Field

class TrendsItem(scrapy.Item):
    # define the fields for your item here like:
    # name = scrapy.Field()
    title = Field()
    url = Field()
    image_urls = Field()
    image = Field()
pass

# -*- coding: utf-8 -*-

# Define your item pipelines here
#
# Don't forget to add your pipeline to the ITEM_PIPELINES setting
# See: http://doc.scrapy.org/en/latest/topics/item-pipeline.html

import pymongo

from scrapy.conf import settings
from scrapy.exceptions import DropItem
from scrapy import log


class MongoDBPipeline(object):

    def __init__(self):
        connection = pymongo.MongoClient(
            settings['MONGODB_SERVER'],
            settings['MONGODB_PORT']
        )
        db = connection[settings['MONGODB_DB']]
        self.collection = db[settings['MONGODB_COLLECTION']]

    def process_item(self, item, spider):
        valid = True
        for data in item:
            if not data:
                valid = False
                raise DropItem("Missing {0}!".format(data))
        if valid:
            self.collection.insert(dict(item))
            log.msg("Question added to MongoDB database!",
                    level=log.DEBUG, spider=spider)
        return item

class TrendsPipeline(object):
    def process_item(self, item, spider):
        return item

# -*- coding: utf-8 -*-

# Scrapy settings for trends project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     http://doc.scrapy.org/en/latest/topics/settings.html
#     http://scrapy.readthedocs.org/en/latest/topics/downloader-middleware.html
#     http://scrapy.readthedocs.org/en/latest/topics/spider-middleware.html

#ITEM_PIPELINES = ['stack.pipelines.MongoDBPipeline']
ITEM_PIPELINES = {'trends.pipelines.MongoDBPipeline': 300}

MONGODB_SERVER = "localhost"
MONGODB_PORT = 27017
MONGODB_DB = "trends"
MONGODB_COLLECTION = "datacollection"

BOT_NAME = 'trends'

SPIDER_MODULES = ['trends.spiders']
NEWSPIDER_MODULE = 'trends.spiders'


# Crawl responsibly by identifying yourself (and your website) on the user-agent
USER_AGENT = 'Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.96 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)'

# Obey robots.txt rules
ROBOTSTXT_OBEY = False

# Configure maximum concurrent requests performed by Scrapy (default: 16)
CONCURRENT_REQUESTS = 32

# Configure a delay for requests for the same website (default: 0)
# See http://scrapy.readthedocs.org/en/latest/topics/settings.html#download-delay
# See also autothrottle settings and docs
DOWNLOAD_DELAY = 3
# The download delay setting will honor only one of:
CONCURRENT_REQUESTS_PER_DOMAIN = 16
CONCURRENT_REQUESTS_PER_IP = 16

# Disable cookies (enabled by default)
COOKIES_ENABLED = True

# Disable Telnet Console (enabled by default)
#TELNETCONSOLE_ENABLED = False

# Override the default request headers:
#DEFAULT_REQUEST_HEADERS = {

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