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next.js/examples/with-apollo/components/Submit.js
Sebastian c0eca35810 with-apollo example using Apollo 2 (#3180)
* Updated dependencies related to Apollo and React.

* Updated libs with Apollo 2 new set of modules.

* Updated to Apollo 2 react integration modules.

* Updated withData to separate apollo state from the app's state.
2017-10-28 09:19:56 +02:00

80 lines
1.8 KiB
JavaScript

import { graphql } from 'react-apollo'
import gql from 'graphql-tag'
function Submit ({ createPost }) {
function handleSubmit (e) {
e.preventDefault()
let title = e.target.elements.title.value
let url = e.target.elements.url.value
if (title === '' || url === '') {
window.alert('Both fields are required.')
return false
}
// prepend http if missing from url
if (!url.match(/^[a-zA-Z]+:\/\//)) {
url = `http://${url}`
}
createPost(title, url)
// reset form
e.target.elements.title.value = ''
e.target.elements.url.value = ''
}
return (
<form onSubmit={handleSubmit}>
<h1>Submit</h1>
<input placeholder='title' name='title' />
<input placeholder='url' name='url' />
<button type='submit'>Submit</button>
<style jsx>{`
form {
border-bottom: 1px solid #ececec;
padding-bottom: 20px;
margin-bottom: 20px;
}
h1 {
font-size: 20px;
}
input {
display: block;
margin-bottom: 10px;
}
`}</style>
</form>
)
}
const createPost = gql`
mutation createPost($title: String!, $url: String!) {
createPost(title: $title, url: $url) {
id
title
votes
url
createdAt
}
}
`
export default graphql(createPost, {
props: ({ mutate }) => ({
createPost: (title, url) => mutate({
variables: { title, url },
updateQueries: {
allPosts: (previousResult, { mutationResult }) => {
const newPost = mutationResult.data.createPost
return Object.assign({}, previousResult, {
// Append the new post
allPosts: [newPost, ...previousResult.allPosts]
})
}
}
})
})
})(Submit)