CouchDB Haskell package is the Haskell interface to the couchDB database software. CouchDB is a document oriented datastorage system (with versions) which is geared towards replication. For more information read Anderson, Lehnardt and Slater's book "CouchDB - The definite guide" ().
Examples how to use the Haskell CouchDB interface are not easy to find on the web. I found only one .
I created this wiki page to make available the simple examples I coded to learn to use CouchDB and to report of some of the not-so-obvious traps beginners could fall into.
1.1 Example: Store and retrieve notes
The simple example I selected is the database backend of a "note" application (e.g. Tomboy or any other of the yellow paste-it notes look-alike). The first function is to store a note, as an example on how to store data in couch:
1.1.1 Store note
1.1.2 Retrieve note
Notice that the syntax for retrieval has changed since the example code for "converting from MySQL to CouchDB" was written: no preceeding "/_design/" in the name of the view.
I do not guarantee for the correctness of the code (of course). I hope it is useful. I invite others to contribute their examples or more complex codes so we can learn from each other.
I am currently working and interested to hear comments at frank at geoinfo dot tuwien dot ac dot at.