vue-async-methods

vue-async-methods

Vue async methods support

Install

$ npm install vue-async-methods

Usage

import AsyncMethods from 'vue-async-methods'

Vue.use(AsyncMethods)

Now you can define async methods on your vm:

export default {
  asyncMethods: {
    fetchData() {
      return ajax('http://example.com/data.json') //must return a promise
    }
  },
}

And use the following helper variables in your view:

fetchData.isCalled // false until first called
fetchData.isPending
fetchData.isResolved
fetchData.isRejected
fetchData.resolvedWith
fetchData.resolvedWithEmpty //empty means empty object or empty array
fetchData.resolvedWithSomething //opposite of empty
fetchData.rejectedWith //Error object

<button type="button" @click="fetchData">Load data</button>
<div v-if="!fetchData.isCalled">Click button to load data</div>
<div v-if="fetchData.isPending">Loading data...</div>

<div v-if="fetchData.isResolved">
    <div v-if="fetchData.resolvedWithSomething">
        <ul>
            <li v-for="item in fetchData.resolvedWith">
                {{item.name}}
            </li>
        </ul>
    </div>
    <div v-if="fetchData.resolvedWithEmpty">
        Empty list returned
    </div>
</div>

<div v-if="fetchData.isRejected">
    <div v-if="fetchData.rejectedWith">
        Could not load data due to an error. Details: {{fetchData.rejectedWith.message}}
    </div>
</div>

License

MIT © Martin Hansen