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Gem Version

Ruby library for parsing Sentinel-2 tile metadata and downloading tile data from AWS. This is the primary mechanism for retrieving data for the Sentinel-2 AWS Search API project.


Add this line to your application's Gemfile:

gem 'sentinel2_aws'

And then execute:

$ bundle

Or install it yourself as:

$ gem install sentinel2_aws


Initialize Sentinel2Aws::Client

client ="access_key_id", "secret_access_key")

Get productInfo.json object paths for all products by date: get_products("YYYY-MM-DD")

products = client.get_products("2017-12-14")
# =>
# [
# "products/2017/12/14/S2B_MSIL1C_20171214T230119_N0206_R015_T58FCD_20171214T234716/productInfo.json",
# "products/2017/12/14/S2B_MSIL1C_20171214T230119_N0206_R015_T58FCE_20171214T234716/productInfo.json",
# ]

Get product and tile metadata

# takes single productInfo.json path returned from get_products
product = "products/2017/12/15/S2B_MSIL1C_20171215T235729_N0206_R030_T57MVR_20171216T010047/productInfo.json"
metadata = client.get_product_info(product)
# =>
  :name => "S2B_MSIL1C_20171215T235729_N0206_R030_T57MVR_20171216T010047",
  :id => "eaedcad9-f287-41b8-944c-0cfed0b15db8",
  :path =>  "products/2017/12/15/S2B_MSIL1C_20171215T235729_N0206_R030_T57MVR_20171216T010047",
  :timestamp => "2017-12-15T23:57:29.027Z",
  :datatake_identifier => "GS2B_20171215T235729_004060_N02.06",
  :scihub_ingestion => "2017-12-16T01:46:29.112Z",
  :s3_ingestion => "2017-12-16T01:50:49.375Z",
        :path => "tiles/57/M/VR/2017/12/15/0",
        :timestamp => "2017-12-15T23:57:27.460Z",
        :utm_zone => 57,
        :latitude_band => "M",
        :grid_square => "VR",
        :epsg => "32757",
        :data_coverage_percentage => 31.21,
        :cloudy_pixel_percentage => 13.47

Download tile data: download_tile_data(s3 tile path, file, output path)

client.download_tile_data("tiles/57/M/VR/2017/12/15/0", "B01.jp2", "/path/that/exists")


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at


The gem is available as open source under the terms of the MIT License.