blob: a12feab753aad7bbb5c2256882a213a209036fee (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
# app-builder
[](https://github.com/calebboyd/app-builder/actions)
Create composable promise based middleware pipelines, using the "onion" middleware model.
## Install:
`npm install app-builder`
## Example
```javascript
import { compose } from 'app-builder'
const app = compose([
async function (ctx, next) {
ctx.value += 1
await next()
ctx.value += 4
},
async function (ctx, next) {
ctx.value += 2
await next()
ctx.value += 3
}
]);
const context = { value: '' }
app(context).then(() => console.log(context.value)) // --> '1234'
```
All composed functions are also valid middleware functions.
```javascript
const superApp = compose(
async function (ctx, next) {
ctx.value += 'first'
await next()
ctx.value += 'last'
},
app
)
```
|
