eef0db73bf
* docs(core): cleanup tutorials * chore: review fix Co-authored-by: Isaac Mann <isaacplmann@users.noreply.github.com> Co-authored-by: Isaac Mann <isaacplmann@users.noreply.github.com>
74 lines
2.1 KiB
Markdown
74 lines
2.1 KiB
Markdown
# Node Nx Tutorial - Step 3: Share Code
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<iframe width="560" height="315" src="https://www.youtube.com/embed/MqqwOoKa-Ho" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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Awesome! The application is working as expected!
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Next, work on refactoring a bit. The next work to do is move the `Todo` type to it's own library. This is important when you want to share the type between multiple applications, without having to duplicate the same type everywhere.
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**Run the following generator to create a library:**
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```bash
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nx g @nrwl/workspace:lib data
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```
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The result should look like this:
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```treeview
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myorg/
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├── apps/
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│ └── todos/
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├── libs/
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│ └── data/
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│ ├── src/
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│ │ ├── lib/
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│ │ │ └── data.ts
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│ │ └── index.ts
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│ ├── jest.config.js
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│ ├── tsconfig.lib.json
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│ ├── tsconfig.json
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│ └── tsconfig.spec.json
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├── tools/
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├── nx.json
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├── package.json
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└── tsconfig.base.json
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```
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**Copy the type into `libs/data/src/lib/data.ts`.**
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```typescript
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export type Todo = {
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message: string;
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done: boolean;
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};
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```
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### A note about VS Code :
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If you're using [VS Code](https://code.visualstudio.com/) it may be necessary at this point to restart the TS server so that the new `@myorg/data` package is recognised. This needs to be done **every time a new workspace library is added**.
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Use the command palette with a `*.ts` file open and choose `Restart TS Server`.
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## Refactor the todos service
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**Now update `apps/todos/src/app/todos/todos.service.ts` to import the type:**
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```typescript
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import { Injectable } from '@nestjs/common';
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import { Todo } from '@myorg/data';
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const todos: Todo[] = [
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{ message: 'Take out trash', done: false },
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{ message: 'Continue using Nx', done: false },
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];
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@Injectable()
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export class TodosService {
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getTodos(): Todo[] {
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return todos;
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}
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}
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```
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Every time you add a new library, you have to restart `nx serve`. **So restart `nx serve todos` and you should see the application running.**
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