# SERVIETTE - JSON to SQL [![Build Status](https://travis-ci.org/v0d1ch/serviette.svg?branch=master)](https://travis-ci.org/v0d1ch/serviette)

  Library for generating SQL queries from JSON. 
  Send the json in the expected format and receive raw sql string.
### Why ?
- Why not ?

### Expected JSON format
````
{
    "format":1,
    "action":"SELECT",
    "selectName": "users",
    "joinTables":[
    	  {"tablename":"addresses","field":"userid","operator":"=","withTable":"users", "withField":"id"},
          {"tablename":"posts","field":"userid","operator":"=","withTable":"users", "withField":"id"}
    	],
    "whereCondition":[
          {"whereTableName":"users","whereField":"id", "whereOperator":">", "whereFieldValue": 1}
      ]
}
````

If `format` is set to 1 you will get json response:

````
{"response":"SELECT users join addresses on userid = users.id  join posts on userid = users.id   where users.id > 1","warnings":"","errors":""}
````
 
You can find this lib on [hackage](https://hackage.haskell.org/package/serviette)
Serviette backend is [here](https://github.com/v0d1ch/serviette-yesod-example)