Vue.js component to handle CSV uploads with field mapping.

VueCsvImport is a completely un-styled, customizable, and modular CSV mapping component. It allows you to upload a CSV, and map the CSV to pre-defined fields.
All markup and text can be replaced and/or customized. This is a complete rebuild for Vue 3 and will NOT work with your old markup from Vue 2.

This version is for Vue 3. Click here for Vue 2.

Demo

---

Installation

You can install the package via npm or yarn:

# npm
npm install vue-csv-import

# Yarn
yarn add vue-csv-import

You can import components individually.

import {VueCsvToggleHeaders, VueCsvSubmit, VueCsvMap, VueCsvInput, VueCsvErrors, VueCsvImport} from 'vue-csv-import';

Or import all as a plugin.

import {createApp} from "vue";
import App from "./App.vue";
import {VueCsvImportPlugin} from "vue-csv-import";

createApp(App)
    .use(VueCsvImportPlugin)
    .mount("#app");

A minimal working example with all components will look something like this:

<template>
    <vue-csv-import
        v-model="csv"
        :fields="{name: {required: false, label: 'Name'}, age: {required: true, label: 'Age'}}"
    >
        <vue-csv-toggle-headers></vue-csv-toggle-headers>
        <vue-csv-errors></vue-csv-errors>
        <vue-csv-input></vue-csv-input>
        <vue-csv-map></vue-csv-map>
    </vue-csv-import>
</template>

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Components

• VueCsvImport - The primary component wrapper. All other components should be used within this component.
• VueCsvToggleHeaders - Toggles whether CSV should be read as having headers or not.
• VueCsvInput - The file input field to upload your CSV
• VueCsvMap - Used to map CSV columns to your fields
• VueCsvSubmit - Used to POST the mapped CSV.
• VueCsvErrors - Used to display errors.

VueCsvImport

Primary wrapper component.

<template>
    <vue-csv-import
        v-model="csv"
        :fields="{
            name: {
                required: false,
                label: 'Name'
            },
            age: {
                required: true,
                label: 'Age'
            }
        }"
    >
        <!-- Other Components -->
    </vue-csv-import>
</template>

Props:

Prop	Default	Description
fields	null	(required) The field names used to map the CSV.
text	see below	(optional) Override the default text used in the component.
modelValue	N/A	(optional) Binds to the mapped CSV object.

Default text

{
    "errors": {
        "fileRequired" : "A file is required",
        "invalidMimeType" : "Invalid file type"
    },
    "toggleHeaders": "File has headers",
    "submitBtn": "Submit",
    "fieldColumn": "Field",
    "csvColumn": "Column"
}

Slot Props:

Prop	Description
file	The selected file
errors	Current errors
fields	The fields object

---

VueCsvToggleHeaders

Allows user to toggle whether the CSV has headers or not.

<template>
    <vue-csv-import>
        ...
        <vue-csv-toggle-headers></vue-csv-toggle-headers>
        ...
    </vue-csv-import>
</template>

Or with custom markup:

<template>
    <vue-csv-import>
        ...
        <vue-csv-toggle-headers v-slot="{hasHeaders, toggle}">
            <button @click.prevent="toggle">Has Headers</button>
        </vue-csv-toggle-headers>
        ...
    </vue-csv-import>
</template>

Props:

Prop	Default	Description
checkboxAttributes	{}	(optional) Attributes to bind to the checkbox.
labelAttributes	{}	(optional) Attributes to bind to the label.

Slot Props:

Prop	Description
hasHeaders	Whether CSV is marked as having headers.
toggle	Toggle the 'hasHeaders' value.

---

VueCsvInput

The file field for importing CSV.

<template>
    <vue-csv-import>
        ...
        <vue-csv-input name="file"></vue-csv-input>
        ...
    </vue-csv-import>
</template>

Or with custom markup:

<template>
    <vue-csv-import>
        ...
        <vue-csv-input v-slot="{file, change}">
            ...
        </vue-csv-input>
        ...
    </vue-csv-import>
</template>

Props:

Prop	Default	Description
name	N/A	(required) The field names used to map the CSV.
headers	true	(optional) Override the default text used in the component.
parseConfig	N/A	(optional) Papaparse config object.
validation	true	(optional) Use validation or not
fileMimeTypes	["text/csv", "text/x-csv", "application/vnd.ms-excel", "text/plain"]	(optional) Accepted CSV file mime types.

Slot Props:

Prop	Description
file	The current file object
change	Change the file

---

VueCsvMap

Component to map the CSV to the specified fields.

<template>
    <vue-csv-import>
        ...
        <vue-csv-map></vue-csv-map>
        ...
    </vue-csv-import>
</template>

Or use slot for custom markup:

<template>
    <vue-csv-import>
        ...
        <vue-csv-map v-slot="{sample, map, fields}">
            ...
        </vue-csv-map>
        ...
    </vue-csv-import>
</template>

Props:

Prop	Default	Description
noThead	false	(optional) Attributes to bind to the checkbox.
selectAttributes	{}	(optional) Attributes to bind to the select fields.
autoMatch	true	(optional) Auto-match fields to columns when they share the same name
autoMatchIgnoreCase	true	(optional) Ignore case when auto-matching

Slot Props:

Prop	Description
sample	The first row of the CSV.
map	The currently mapped fields.
fields	The fields.

---

VueCsvSubmit

Displays a button to post the CSV to specified URL.

<template>
    <vue-csv-import>
        ...
        <vue-csv-submit url="/post/here"></vue-csv-submit>
        ...
    </vue-csv-import>
</template>

Or use slot for custom markup:

<template>
    <vue-csv-import>
        <vue-csv-submit v-slot="{submit, mappedCsv}">
            <button @click.prevent="submit">Submit!!</button>
        </vue-csv-submit>
    </vue-csv-import>
</template>

Props:

Prop	Default	Description
url	N/A	(required) Where to post the CSV.

Slot Props:

Prop	Description
submit	Submit the CSV (POST)
mappedCsv	The mapped CSV object

---

VueCsvErrors

Displays any error messages.

<template>
    <vue-csv-import>
        ...
        <vue-csv-errors></vue-csv-errors>
        ...
    </vue-csv-import>
</template>

Or use slot for custom markup:

<template>
    <vue-csv-import>
        ...
        <vue-csv-errors v-slot="{errors}">
            ...
        </vue-csv-errors>
        ...
    </vue-csv-import>
</template>

Slot Props:

Prop	Description
errors	Object containing errors

---

Testing

npm run test

Changelog

Please see CHANGELOG for more information what has changed recently.

Security

If you discover any security related issues, please contact John Gile.

License

The MIT License (MIT). Please see License File for more information.

Credits

• John Gile
• All Contributors