@ableco/overpass 中文文档教程

发布于 3年前 浏览 28 项目主页 更新于 3年前

Overpass

JSON:API 端点和 React 组件之间基于 Redux 的钩子驱动的桥梁。

Installation

Using npm

npm install @ableco/overpass

Using yarn

yarn add @ableco/overpass

Getting started

要映射应用程序的 JSON:API 资源,请使用 defineResources 定义一个 resources 对象:

import { defineResources } from "@ableco/overpass";

const resources = defineResources(({ resource }) => {
  resource("categories");
  resource("products");
  resource("orders");
  resource("items");
});

然后,使用 包装您的应用程序成分。 它将允许您在应用程序中跨组件使用 Overpass。

接受一些道具,稍后您将看到。 使用 resources 属性让 Overpass 知道如何存储您的资源:

import { defineResources } from "@ableco/overpass";

const resources = defineResources(({ resource }) => {
  resource("categories");
  resource("products");
  resource("orders");
  resource("items");
});

<OverpassProvider
  api={{
    apiPrefix: "/api",
  }}
  resources={resources}
>
  {/* your app */}
</OverpassProvider>

Usage

Fetching data

有两种方法可以在 Overpass 中获取数据。 第一个是通过获取资源集合,第二个是通过获取称为实体的单个资源。

注意:Overpass 使用 React hooks 来处理存储的资源。

要获取实体集合,您可以使用 useFetchCollection。 调用 useFetchCollection 的结果是一个可以在 useEffect 挂钩中使用的函数:

import { useFetchCollection } from "@ableco/overpass";

function CategoriesList() {
  const fetchCategories = useFetchCollection("categories");

  useEffect(() => {
    fetchCategories();
  }, []);

  return <div>{/* your component */}</div>;
}

要获取单个实体,您可以使用 useFetchEntity。 与 useFetchCollection 不同,useFetchEntity 不仅接收实体的名称,还接收单个实体的 ID:

import { useFetchEntity } from "@ableco/overpass";

function Product({ id }) {
  const fetchProduct = useFetchEntity("products", id);

  useEffect(() => {
    fetchProduct();
  }, []);

  return <div>{/* your component */}</div>;
}

Using fetched data

在使用 useFetchCollectionuseFetchEntity< 获取数据后/code>,您可以使用 useCollectionuseEntity 处理存储的实体:您还可以使用 useFilteredCollection

const categories = useCollection("categories");
const product = useEntity("products", id);

按单个属性过滤集合或实体或 useFilteredEntity

const categoryProducts = useFilteredCollection(
  "products",
  "categoryId",
  categoryId,
);
const mainProduct = useFilteredEntity("products", "mainProduct", true);

Mutating remotely

注意:以下挂钩将在您的后端数据库中进行更改。

Creating entities

为了创建实体,Overpass 提供了一个名为 useCreateEntity 的挂钩。

useCreateEntity 返回的函数接收一个对象,该对象具有要创建的实体的属性:

const createItem = useCreateEntity("items");

async function addProductToCart(selectedProductId) {
  await createItem({ productId: selectedProductId });
}

Updating entities

useUpdateEntity 是一个 Overpass 挂钩,它接收两个参数,资源的名称和资源的 ID要更新的实体。

useUpdateEntity 返回的函数还接收一个对象,该对象具有要更新的实体的属性:

const updateItem = useUpdateEntity("items", itemId);

async function updateCartItem(quantity) {
  await updateItem({ quantity: quantity });
};

Deleting entities

useDeleteEntity 允许您删除实体。 useDeleteEntity 返回的函数接收要删除的实体的 ID:

const deleteItem = useDeleteEntity("items");

async function removeCartItem(itemId) {
  await deleteItem(itemId);
};

Testing

在终端中运行以下命令:

npm run test

如果您使用的是 yarn,则运行另一个命令:

yarn test

Contributing

欢迎贡献。 请查看贡献指南,了解您需要遵循的指南。

请阅读我们的行为准则,以便您了解我们期望所有参与者表现出的尊重行为。

License

Overpass 在 MIT 许可证下发布。 请参阅 LICENSE 以获取完整的许可文本。

Overpass

Redux-based hooks-powered bridge between JSON:API endpoints and React components.

Installation

Using npm

npm install @ableco/overpass

Using yarn

yarn add @ableco/overpass

Getting started

To map your application's JSON:API resources, define a resources object using defineResources:

import { defineResources } from "@ableco/overpass";

const resources = defineResources(({ resource }) => {
  resource("categories");
  resource("products");
  resource("orders");
  resource("items");
});

Then, wrap your app with an <OverpassProvider /> component. It will allow you to use Overpass across components in your application.

<OverpassProvider /> accepts a few props, as you will see later. Use the resources prop to let Overpass know how to store your resources:

import { defineResources } from "@ableco/overpass";

const resources = defineResources(({ resource }) => {
  resource("categories");
  resource("products");
  resource("orders");
  resource("items");
});

<OverpassProvider
  api={{
    apiPrefix: "/api",
  }}
  resources={resources}
>
  {/* your app */}
</OverpassProvider>

Usage

Fetching data

There are two ways to fetch data in Overpass. The first one is by fetching collections of resources, and the second one is by fetching single resources, known as entities.

Note: Overpass uses React hooks to work with the stored resources.

To fetch collections of entities, you can use useFetchCollection. The result of calling useFetchCollection is a function that can be used inside a useEffect hook:

import { useFetchCollection } from "@ableco/overpass";

function CategoriesList() {
  const fetchCategories = useFetchCollection("categories");

  useEffect(() => {
    fetchCategories();
  }, []);

  return <div>{/* your component */}</div>;
}

To fetch a single entity, you can use useFetchEntity. Unlike useFetchCollection, useFetchEntity not only receives the entity's name but also a single entity's ID:

import { useFetchEntity } from "@ableco/overpass";

function Product({ id }) {
  const fetchProduct = useFetchEntity("products", id);

  useEffect(() => {
    fetchProduct();
  }, []);

  return <div>{/* your component */}</div>;
}

Using fetched data

After data is fetched with useFetchCollection or useFetchEntity, you can work with stored entities by using useCollection or useEntity:

const categories = useCollection("categories");
const product = useEntity("products", id);

You can also filter collections or entities by a single attribute with useFilteredCollection or useFilteredEntity:

const categoryProducts = useFilteredCollection(
  "products",
  "categoryId",
  categoryId,
);
const mainProduct = useFilteredEntity("products", "mainProduct", true);

Mutating remotely

Note: The following hooks will make changes in your backend's database.

Creating entities

To create an entity, Overpass provides a hook called useCreateEntity.

The function returned by useCreateEntity receives an object with the attributes for the entity to be created:

const createItem = useCreateEntity("items");

async function addProductToCart(selectedProductId) {
  await createItem({ productId: selectedProductId });
}

Updating entities

useUpdateEntity is an Overpass hook that receives two parameters, the resource's name and the ID of the entity to be updated.

The function returned by useUpdateEntity also receives an object with the attributes for the entity to be updated:

const updateItem = useUpdateEntity("items", itemId);

async function updateCartItem(quantity) {
  await updateItem({ quantity: quantity });
};

Deleting entities

useDeleteEntity lets you delete an entity. The function returned by useDeleteEntity receives the ID of the entity to be deleted:

const deleteItem = useDeleteEntity("items");

async function removeCartItem(itemId) {
  await deleteItem(itemId);
};

Testing

Run the following command in a terminal:

npm run test

Or this other one if you are using yarn:

yarn test

Contributing

Contributions are welcome. Please check out the Contributing guide for the guidelines you need to follow.

Please read our Code of Conduct so that you can understand the kind of respectful behavior we expect from all participants.

License

Overpass is released under the MIT license. See LICENSE for the full license text.

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