Migration from MongoDB to Google NDB

[RAUSHAN RAJ via StackOverflow]

I have mongodb data hosted on MongoLab,Now I want to Build a search facility on top of my data.I decided to host my data on Google App Engine and use Google Search API.So,I have 10Gb of crawled data in mongodb.How I can migrate that data to Google NDB.Also i want my crawler that i run from my local machine will save data directly to Google Cloud Store.

Please DO NOT REPLY directly to this email but go to StackOverflow:
http://stackoverflow.com/questions/26479450/migration-from-mongodb-to-google-ndb