Elastic search query DSL (Bank example)

I came across Bloodhound and ES Bank Example. Which coupled with my intrest in DSL's, compilers led to this project. A query DSL for the bank example. This can probably even be useful example to some. Given my super beginner understanding of haskell the code base could be painful to read but hopefully that will improve.

Usage

• Run elasticsearch. Load up the bank data. (on localhost:9200)
• Run stack build.
• Run stack exec app-search-exe. (Now the app is running)
• App will run on port 8081
• You can now execute queries on it like curl -XGET -G http://localhost:8081/search -d 'query=gender:F'

Query syntax

• You can use gender, age, balance, and, or.

Examples

• query=(balance%20%20>48000)%20and%20age<=24%20and%20gender:F
• query=(balance%20%20<48000)%20or%20age<=24%20and%20gender:F
• and so on

Note

• Config is being handled in the most naive way (Need to look into how to stack monads)
• See src/Utils.hs to see what can be configured

Config

Env Var	Desc	Default
SCOTTY_PORT	port	8081
ES_USERNAME	elasticsearch username	-
ES_PASSWORD	elasticsearch password	-
ES_URL	elasticsearch url	localhost
ES_PORT	elasticsearch port	9200
ES_INDEX	elasticsearch index	bank
KEY_MAP*	key mapping file path	-
FILTER_MAP*	filter mapping file path	-

* - multiline files seperated with spaces (txt) e.g. filters.txt

c ct
nam user org
addr address