Scrapy utils for Modis crawlers projects.
Project description
crawler-utils
Scrapy utils for Modis crawlers projects.
MongoDB
Some utils connected with mongodb.
MongoDBPipeline - pipeline for saving items in mongodb.
Params:
- MONGODB_SERVER - address of mongodb database.
- MONGODB_PORT - port of mongodb database.
- MONGODB_DB - database where to save data.
- MONGODB_USERNAME - username for authentication in mongodb in MONGODB_DB database.
- MONGODB_PWD - password for authentication.
- DEFAULT_MONGODB_COLLECTION - default collection where to save data (default value is
test
). - MONGODB_COLLECTION_KEY - key of item which identifies items collection name (
MONGO_COLLECTION
) where to save item (default value iscollection
). - MONGODB_UNIQUE_KEY - key of item which identifies item
Kafka
Some utils connected with kafka.
KafkaPipeline - pipeline for pushing items into kafka.
Pipeline outputs data into stream with name {RESOURCE_TAG}.{DATA_TYPE}
.
Where RESOURCE_TAG
is tag of resource from which data is crawled and DATA_TYPE
is type of
data crawled: data
, post
, comment
, like
, user
, friend
, share
, member
, news
,
community
.
Params:
- KAFKA_ADDRESS - address of kafka broker.
- KAFKA_KEY - key of item which is put into kafka record key.
- KAFKA_RESOURCE_TAG_KEY - key of item which identifies item
RESOURCE_TAG
(default value isplatform
) - KAFKA_DEFAULT_RESOURCE_TAG - default
RESOURCE_TAG
for crawled items withoutKAFKA_RESOURCE_TAG_KEY
(default value iscrawler
) - KAFKA_DATA_TYPE_KEY - key of item from which identifies item
DATA_TYPE
(default value istype
). - KAFKA_DEFAULT_DATA_TYPE - default
DATA_TYPE
for crawled items withoutKAFKA_DATA_TYPE_KEY
(default value isdata
). - KAFKA_COMPRESSION_TYPE - type of data compression in kafka for example
gzip
.
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