SQLite for Gren

Use sqlite entirely in Gren without ports via ws4sql.

Usage Example

Start a ws4sql database server (this will create the sqlite db if it doesn't exist):

npx ws4sql --quick-db /path/to/mydatabase.db

Then you can write code like:

import Db
import Db.Encode
import Db.Decode
import HttpClient

type alias User =
    { id : Int
    , name : String
    }

getUser : HttpClient.Permission -> Int -> Task Db.Error User
getUser httpPerm userId =
    let
        connection =
            Db.init httpPerm "http://localhost:12321/mydatabase"
    in
    Db.getOne connection
        { query = "select * from users where id = :id"
        , parameters = [ Db.Encode.int "id" userId ]
        , decoder = 
            Db.Decode.get2
                (Db.Decode.int "id")
                (Db.Decode.string "name")
                (\id name -> { id = id, name = name })
        }

More Info

See the package docs for full usage details.

Running npx ws4sql --quick-db as in the example above lets you try out ws4sql without installing or configuring anything. For full details on installing, configuring, and running ws4sql, see the ws4sql-npm package and the ws4sqlite repo. Note: this package expects the ws4sql fork of ws4sqlite (this is what is installed by the npm package).

License

blaix/gren-ws4sql

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