https://github.com/fosskers/streaming-osm

A hand-written streaming byte parser for OpenStreetMap Protobuf data.
https://github.com/fosskers/streaming-osm

haskell openstreetmap streaming

Last synced: 2 months ago
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A hand-written streaming byte parser for OpenStreetMap Protobuf data.

• Host: GitHub
• URL: https://github.com/fosskers/streaming-osm
• Owner: fosskers
• License: bsd-3-clause
• Created: 2017-03-20T16:49:27.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2021-12-08T21:54:13.000Z (about 3 years ago)
• Last Synced: 2024-05-01T23:24:03.160Z (8 months ago)
• Topics: haskell, openstreetmap, streaming
• Language: Haskell
• Homepage:
• Size: 833 KB
• Stars: 12
• Watchers: 6
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# `streaming-osm`

This library provides the ability to read and process

[OpenStreetMap](http://www.openstreetmap.org/) data via the

[streaming](https://hackage.haskell.org/package/streaming) ecosystem. Since

*streaming* allows for very little RAM overhead despite file size, we can

process very large OSM PBF files just by providing a file path:

```haskell

import           Streaming

import           Streaming.Osm

import qualified Streaming.Prelude as S

-- | Count all nodes.

count :: IO ()

count = do

  len <- runResourceT . S.length_ . nodes . blocks $ blobs "yourfile.osm.pbf"

  print len

```