yifanwu/diel-db-server

Simple wrapper around commodity DB for use with DIEL

DIEL DB Server

A thin wrapper layer that connects to different provided databases.

Please refer to this example repo if you want to see how this repo is used --- currently, that example uses the Pitchfork dataset.

Supported DBs

We currently support SQLite (better-sqlite3) add Postgres. We will also add support for an AWS DB.

To use your SQLite file, simply pass the following configuration when you start, as an example

import { resolve } from "path";
import { StartDielDbServer } from "diel-db-server";
import { DbDriver } from "diel-db-server/build/src/types";

console.log("data path", resolve("sample-data/pitchfork.sqlite"));

const configs = [{
  dbName: "pitchfork",
  path: resolve("server/sample-data/pitchfork.sqlite"),
  driver: DbDriver.SQLite
}];

StartDielDbServer(configs);

And in your UI application, you want to follow the following basic steps. Note that the dbName is used to specify which db the application is interested in, since the server could in theory contain multiple databases.

// the function to call when DIEL is finished setting up --- here, we are using Reat
const loadPage = () => {
  ReactDOM.render(
    <PageContainer/>,
    document.getElementById("wrapper")
  );
};

// the default websocket location is 8999
const dbConfigs: DbSetupConfig[] = [
  {
    dbType: DbType.Socket,
    connection: "ws://localhost:8999",
    message: {dbName: "pitchfork"}
  }
];

// slightly weird location I suppose
const dielPrefix = "./assets/diel/";

const dielFiles = [
   `${dielPrefix}pitchfork-remote.diel`
];

const mainDbPath: string = null;

export const diel = new DielRuntime({
  isStrict: true,
  showLog: true,
  setupCb: loadPage,
  dielFiles,
  mainDbPath,
  dbConfigs,
});