abhishiv / qbase

Simple lightweight and fast in-memory data store with support for lazy queries, watchable queries, transactions, H1/HM/MTM/BT relationships, and MongoDB styled selectors.

@gratico/qbase

@gratico/qbase

Simple lightweight and fast in-memory data store with support for lazy queries, watchable queries, transactions, H1/HM/MTM/BT relationships, and MongoDB styled selectors.

Written to be an lightweight functional alternative to @apollo/client. PRs welcomed for adding support for JSONSchema.

Install and use

To use run npm install -g @gratico/qbase

import {createStore, getSelect, getInsert, observe} from "@gratico/qbase"
import schema from './schema'
const store = createStore(schema)

Schema Definition

List of table describing their column and realtions

export const schema: ISchemaDefinition = {
  name: "Kernel",
  tables: [
    ...tables,
    {
      name: "Masters",
      primaryKey: ["id"],
      relations: [
        {
          type: R.MTM,
          name: "viewports",
          opts: {
            tableName: "Viewports",
            remoteKey: "viewportId",
            localKey: "masterId",
            through: "MasterViewportJunction",
          },
        },
      ],
      columns: [
        { name: "id", type: "STRING" },
        { name: "createdAt", type: "DATE_TIME", nullable: true },
      ],
    } as ITableDefinition,
  ],
};

Querying

List of table describing their column and realtions

const selectQuery = getSelect(db, [
  Q.SELECT,
  "Masters",
  { columns: ["id", "name"], includes: ["masters"] },
]);
const preInsertSelectResults = selectQuery();
const insertMQuery = getInsert(db, [
  Q.INSERT,
  "People",
  [{ id: "m1", "name": "Master 1" }],
])();

export * from "./queries";
export * from "./relational";
export * from "./schema";
export * from "./types";
export * from "./utils";
export * from "./watch";
export * from "./react_hooks";