Multipart Upload

We will show you how to multipart upload with refine.

Let's start with the creation form first.

Create Form

Let's add the image field to the post creation form.

pages/posts/create.tsx

import {
  useApiUrl,
} from '@pankod/refine-core'
import {
  Upload,
  getValueFromEvent,
  Create,
  Form,
  Input,
  useForm,
} from '@pankod/refine-antd'

export const PostCreate: React.FC = () => {
  const { formProps, saveButtonProps } = useForm<IPost>()

  const apiUrl = useApiUrl()

  return (
    <Create saveButtonProps={saveButtonProps}>
      <Form {...formProps} layout="vertical">
        <Form.Item
          label="Title"
          name="title"
          rules={[
            {
              required: true,
            },
          ]}
        >
          <Input />
        </Form.Item>
        <Form.Item label="Image">
          <Form.Item
            name="image"
            valuePropName="fileList"
            getValueFromEvent={getValueFromEvent}
            noStyle
          >
            <Upload.Dragger
              name="file"
              action={`${apiUrl}/media/upload`}
              listType="picture"
              maxCount={5}
              multiple
            >
              <p className="ant-upload-text">Drag & drop a file in this area</p>
            </Upload.Dragger>
          </Form.Item>
        </Form.Item>
      </Form>
    </Create>
  )
}

interface IPost {
  id: number
  title: string
  image: [
    {
      uid: string
      name: string
      url: string
      status: 'error' | 'success' | 'done' | 'uploading' | 'removed'
    },
  ]
}

tip

We can reach the API URL by using the useApiUrl hook.

It will look like this.

What we need now is an upload end-point that accepts multipart uploads. We write this address in the action property of the Upload component.

[POST] https://api.fake-rest.refine.dev/media/upload

{
  "file": "binary"
}

caution

This end-point should be Content-type: multipart/form-data and Form Data: file: binary?.

This end-point should respond similarly.

[POST] https://api.fake-rest.refine.dev/media/upload

{
  "url": "https://example.com/uploaded-file.jpeg"
}

caution

We have to use the getValueFromEvent method to convert the uploaded files to Antd UploadFile object.

This data is sent to the API when the form is submitted.

[POST] https://api.fake-rest.refine.dev/posts

{
  "title": "Test",
  "image": [
    {
      "uid": "rc-upload-1620630541327-7",
      "name": "greg-bulla-6RD0mcpY8f8-unsplash.jpg",
      "url": "https://refine.ams3.digitaloceanspaces.com/78c82c0b2203e670d77372f4c20fc0e2",
      "type": "image/jpeg",
      "size": 70922,
      "percent": 100,
      "status": "done"
    }
  ]
}

caution

The following data are required for the Antd Upload component and all should be saved.

Property	Description
uid	Unique id
name	File Name
url	Download URL
status	error, success, done, uploading, removed

Edit Form

Let's add the image field to the post editing form.

pages/posts/edit.tsx

import {
  useApiUrl,
} from '@pankod/refine-core'
import {
  Upload,
  getValueFromEvent,
  Edit,
  Form,
  Input,
  useForm,
} from '@pankod/refine-antd'

export const PostEdit: React.FC = () => {
  const { formProps, saveButtonProps } = useForm<IPost>()

  const apiUrl = useApiUrl()

  return (
    <Edit saveButtonProps={saveButtonProps}>
      <Form {...formProps} layout="vertical">
        <Form.Item
          label="Title"
          name="title"
          rules={[
            {
              required: true,
            },
          ]}
        >
          <Input />
        </Form.Item>
        <Form.Item label="Image">
          <Form.Item
            name="image"
            valuePropName="fileList"
            getValueFromEvent={getValueFromEvent}
            noStyle
          >
            <Upload.Dragger
              name="file"
              action={`${apiUrl}/media/upload`}
              listType="picture"
              maxCount={5}
              multiple
            >
              <p className="ant-upload-text">Drag & drop a file in this area</p>
            </Upload.Dragger>
          </Form.Item>
        </Form.Item>
      </Form>
    </Edit>
  )
}

A request, like the one below, is sent for edit form.

[GET] https://api.fake-rest.refine.dev/posts/1

{
  "id": 1,
  "title": "Test",
  "image": [
    {
      "uid": "rc-upload-1620630541327-7",
      "name": "greg-bulla-6RD0mcpY8f8-unsplash.jpg",
      "url": "https://refine.ams3.digitaloceanspaces.com/78c82c0b2203e670d77372f4c20fc0e2",
      "type": "image/jpeg",
      "size": 70922,
      "percent": 100,
      "status": "done"
    }
  ]
}

This data is sent to the API when form is submitted.

[PUT] https://api.fake-rest.refine.dev/posts/1

{
  "title": "Test",
  "image": [
    {
      "uid": "rc-upload-1620630541327-7",
      "name": "greg-bulla-6RD0mcpY8f8-unsplash.jpg",
      "url": "https://refine.ams3.digitaloceanspaces.com/78c82c0b2203e670d77372f4c20fc0e2",
      "type": "image/jpeg",
      "size": 70922,
      "percent": 100,
      "status": "done"
    }
  ]
}

Uploading State

You may want to disable the "Save" button in the form while the upload is going on. To do this, you can use the useFileUploadState hook.

pages/posts/create.tsx

import { useApiUrl } from '@pankod/refine-core'
import {
  Upload,
  getValueFromEvent,
  useFileUploadState,
  Create,
  Form,
  Input,
  useForm,
} from '@pankod/refine-antd'

export const PostCreate: React.FC = () => {
  const { formProps, saveButtonProps } = useForm<IPost>()

  const { isLoading, onChange } = useFileUploadState()

  const apiUrl = useApiUrl()

  return (
    <Create
      saveButtonProps={{
        ...saveButtonProps,
        disabled: isLoading,
      }}
    >
      <Form {...formProps} layout="vertical">
        <Form.Item
          label="Title"
          name="title"
          rules={[
            {
              required: true,
            },
          ]}
        >
          <Input />
        </Form.Item>
        <Form.Item label="Image">
          <Form.Item
            name="image"
            valuePropName="fileList"
            getValueFromEvent={getValueFromEvent}
            noStyle
          >
            <Upload.Dragger
              name="file"
              action={`${apiUrl}/media/upload`}
              listType="picture"
              maxCount={5}
              multiple
              onChange={onChange}
            >
              <p className="ant-upload-text">Drag & drop a file in this area</p>
            </Upload.Dragger>
          </Form.Item>
        </Form.Item>
      </Form>
    </Create>
  )
}

Example

VIEW SOURCE CODE →

RUN IN YOUR LOCAL

npm create refine-app@latest -- --example upload-antd-multipart