Angular-in-memory-web-api中的多个集合

问题描述

我们如何使用内存中的角度-web-api 创建多个集合?单个集合不是问题.但是我无法为多个集合实现它.

How do we create multiple collections using Angular-in-memory-web-api?Not an issue with single collection. But I'm not able to implement it for multiple collections.

例如，我想在内存数据库中创建两个集合-国家和城市.你知道怎么做吗?

For example, I want to create say two collections in the memory db - Country and Cities. Any idea, how to do that?

推荐答案

只需将两个数组都返回给它.在Angular的示例中，您会看到类似

Just return it an object with both arrays. In the example from Angular, you see something like

createDb() {
  let heroes = [ .. ]
  return { heroes }
}

如果您还不了解这一点，则{ heroes }只是编写{ heroes: heroes }的简写.因此，如果您有两个集合，只需将其添加为另一个属性

If you don't already know this, { heroes } is just shorthand for writing { heroes: heroes }. So if you have two collections, then just add it as a another property

createDb() {
  let heroes = [ .. ];
  let crises = [ .. ];
  return { heroes, crises };
  // or { heroes: heroes, crises: crises }
}

返回的属性名称将用于URL中的路径.所以你可以使用

The name of the property returned will be used for the path in the URL. So you can use

/api/heroes/1
/api/crises/1

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