@miniql/csv v0.0.6

@miniql/csv

A MiniQL query resolver that loads data from CSV files.

Any problems? Please log an issue on this repo.

Love this? Please star the repo and follow the developer on Twitter.

Example

Find a complete and working Node.js example of using MiniQL with a CSV file dataset here:

https://github.com/miniql/miniql-csv-example

Using it

Install the modules in your Node.js project:

npm install --save miniql
npm install --save @miniql/csv

Import the modules (JavaScript):

const { miniql } = require("miniql");
const { createQueryResolver } = require("@miniql/csv");

Import the modules (TypeScript):

import { miniql } from "miniql";
import { createQueryResolver } from "@miniql/csv";

Configure and create the CSV files query resolver:

    //
    // Configures CSV files to be loaded and how they relate to each other.
    //
    const csvFilesConfig = {
        species: {
            primaryKey: "name",
            csvFilePath: "./data/species.csv",
            nested: {
                homeworld: {
                    parentKey: "homeworld",
                    from: "planet",
                },
            },
        },
        planet: {
            primaryKey: "name",
            csvFilePath: "./data/planets.csv",
            nested: {
                species: {
                    foreignKey: "homeworld",
                },
            },
        },
    };
    
    // 
    // Loads CSV files and creates a MiniQL query resolver.
    //
    const queryResolver = await createQueryResolver(csvFilesConfig);

Now you can make queries against the dataset, for example:

    const query = {
        get: {
            species: { // Query for "species" entity.

                // No arguments gets all entities.

                resolve: {
                    homeworld: { // Resolves the homeworld of each species as a nested lookup.
                    },
                }
            },
        },
    };

    // Invokes MiniQL.
    const result = await miniql(query, queryResolver, {});  

    // Displays the query result.
    console.log(JSON.stringify(result, null, 4));

Please see MiniQL for more information on how to make queries.

Don't forget to star the repo and follow the developer on Twitter.