Transforms latitude and longitude coordinates to geohashes.
npm install @firstclasspostcodes/geohash> Transform geographic coordinates in the form of latitude and longitude into numerical geohashes.
     
At Firstclasspostcodes, we use geohashes inside DynamoDB to quickly retrieve matching postcodes for a particular coordinate. Our solution has been adapted from this original blog post and we've extracted some of the code from an existing NPM library to suit our own purposes.
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npm i @firstclasspostcodes/geohash --save
Then refer to the documentation here on how to start using it.