Intro

I'm using the new&kewl FaunaDB Python client lib and freemium svc in a small side project. But Python does not really do justice to the FaunaDB fuctional style API aka it really SHOUTS use a Lisp.

My first inclination was to start a small proj to hackup a quick Scheme based one -- but wasn't quite sure I wanted to shave that yak.

But-but-but it then hit me that maybe this is perfect for Hy -- the lispy Python. And I've not used Hy before and was keen to try it so double rainbow here.

Hy/Lisp advantage

FaunaDB python

This is the basic style I got from the FaunaDB tutorial.

    client.query(
        q.get(
            q.match(
                q.index(idx),
                title
            )
        ))

Hy

Equiv Hy code -- much prettier eh?

      (-> (q.index idx)
          (q.match title)
          (q.get)
          (self.client.query))

And using the fancy threading macro (ala Clojure) probably makes it more readable to boot.

Notes

1. This just a basic Proof of Concept and is not a complete set of FaunaDB ops in Hy.
2. Thus minimally tested.
3. The FdbOps class should be a child class of a generic db class but for this demo ok.
4. My first Hy and FaunaDB prog so who knows how idiomatic it is.

Run demo

Prereqs

1. Install Hy and FaunaDB pkgs.

pip install hy && pip install faunadb

2. Add Faunadb admin key to '~/.fdbhyconf'.

[misc]
admin_key=<yourkey>

Run it

python faunadb-hylisp/fdbops-demo.py  <dbname> <dbclass>

Sample run

python faunadb-hylisp/fdbops-demo.py  dbhy3 dishes100
Get dbname ...
dbhy3
Creat db ...
debug:  dbcreat: begin
warning: dbcreat  <function % at 0x7ff289227ed8> Instance is not unique.
debug:  dbcreat: end
Creat db class ...
debug:  dbcreat_class: begin
debug:  client_factory: begin
debug:  client_factory: end
warning: dbcreat_class  <function % at 0x7ff289227ed8> Instance is not unique.
debug:  dbcreat_class: end
Creat db index ...
debug:  dbcreat_index: begin
warning: dbcreat_index  <function % at 0x7ff289227ed8> Instance is not unique.
debug:  dbcreat_index: end
Creat db index w/tags ...
debug:  dbcreat_index: begin
warning: dbcreat_index  <function % at 0x7ff289227ed8> Instance is not unique.
debug:  dbcreat_index: end
Put entry in db ...
debug:  put: begin
debug:  put: end
{u'data': {u'name': u'eightball', u'url': u'ig:djpoo', u'price': u'$11', u'rest': u'crackWeAreDonutz', u'address': u'decatr', u'desc': u'crack its not just for breakfast'}, u'ref': Ref(u'classes/dishes100/170213319484899854'), u'class': Ref(u'classes/dishes100'), u'ts': 1498586921095000}
Put tags on entry in db ...
debug:  update-tags: begin
debug:  update-tags: end
{u'data': {u'name': u'eightball', u'tags': [u'tagmemaybe'], u'url': u'ig:djpoo', u'price': u'$11', u'rest': u'crackWeAreDonutz', u'address': u'decatr', u'desc': u'crack its not just for breakfast'}, u'ref': Ref(u'classes/dishes100/170213319484899854'), u'class': Ref(u'classes/dishes100'), u'ts': 1498586921304000}
Get entry in db ...
debug:  get: begin
debug:  get: end
{u'data': {u'name': u'eightball', u'tags': [u'tagmemaybe'], u'url': u'ig:djpoo', u'price': u'$11', u'rest': u'crackWeAreDonutz', u'address': u'decatr', u'desc': u'crack its not just for breakfast'}, u'ref': Ref(u'classes/dishes100/170123027939328517'), u'class': Ref(u'classes/dishes100'), u'ts': 1498500812516000}
Get entrys by tag in db ...
debug:  get_by_tag: begin
{u'data': [Ref(u'classes/dishes100/170123027939328517'), Ref(u'classes/dishes100/170132688033808900'), Ref(u'classes/dishes100/170132903383007747'), Ref(u'classes/dishes100/170132957929931269'), Ref(u'classes/dishes100/170213319484899854')]}

Links

1. http://faunadb.com
2. http://docs.hylang.org/en/stable/language/api.html#id2

License

MIT. See LICENSE file for full text.

Copyright

Copyright (c) 2017 Glenn Barry (gmail: gaak99)