426 lines
20 KiB
Plaintext
426 lines
20 KiB
Plaintext
---
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title: Form Builder Plugin
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label: Form Builder
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order: 20
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desc: Easily build and manage forms from the Admin Panel. Send dynamic, personalized emails and even accept and process payments.
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keywords: plugins, plugin, form, forms, form builder
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---
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[](https://www.npmjs.com/package/@payloadcms/plugin-form-builder)
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This plugin allows you to build and manage custom forms directly within the [Admin Panel](../admin/overview). Instead of hard-coding a new form into your website or application every time you need one, admins can simply define the schema for each form they need on-the-fly, and your front-end can map over this schema, render its own UI components, and match your brand's design system.
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All form submissions are stored directly in your database and are managed directly from the Admin Panel. When forms are submitted, you can display a custom on-screen confirmation message to the user or redirect them to a dedicated confirmation page. You can even send dynamic, personalized emails derived from the form's data. For example, you may want to send a confirmation email to the user who submitted the form, and also send a notification email to your team.
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Forms can be as simple or complex as you need, from a basic contact form, to a multi-step lead generation engine, or even a donation form that processes payment. You may not need to reach for third-party services like HubSpot or Mailchimp for this, but instead use your own first-party tooling, built directly into your own application.
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<Banner type="info">
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This plugin is completely open-source and the [source code can be found
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here](https://github.com/payloadcms/payload/tree/main/packages/plugin-form-builder). If you need
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help, check out our [Community Help](https://payloadcms.com/community-help). If you think you've
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found a bug, please [open a new
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issue](https://github.com/payloadcms/payload/issues/new?assignees=&labels=plugin%3A%20form-builder&template=bug_report.md&title=plugin-form-builder%3A)
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with as much detail as possible.
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</Banner>
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## Core Features
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- Build completely dynamic forms directly from the Admin Panel for a variety of use cases
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- Render forms on your front-end using your own UI components and match your brand's design system
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- Send dynamic, personalized emails upon form submission to multiple recipients, derived from the form's data
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- Display a custom confirmation message or automatically redirect upon form submission
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- Build dynamic prices based on form input to use for payment processing (optional)
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## Installation
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Install the plugin using any JavaScript package manager like [Yarn](https://yarnpkg.com), [NPM](https://npmjs.com), or [PNPM](https://pnpm.io):
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```bash
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pnpm add @payloadcms/plugin-form-builder
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```
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## Basic Usage
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In the `plugins` array of your [Payload Config](https://payloadcms.com/docs/configuration/overview), call the plugin with [options](#options):
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```ts
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import { buildConfig } from 'payload/config'
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import { formBuilderPlugin } from '@payloadcms/plugin-form-builder'
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const config = buildConfig({
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collections: [
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{
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slug: 'pages',
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fields: [],
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},
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],
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plugins: [
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formBuilderPlugin({
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// see below for a list of available options
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}),
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],
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})
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export default config
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```
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## Options
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### `fields` (option)
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The `fields` property is an object of field types to allow your admin editors to build forms with. To override default settings, pass either a boolean value or a partial [Payload Block](https://payloadcms.com/docs/fields/blocks#block-configs) _keyed to the block's slug_. See [Fields](#fields) for more details.
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```ts
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// payload.config.ts
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formBuilder({
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// ...
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fields: {
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text: true,
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textarea: true,
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select: true,
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email: true,
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state: true,
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country: true,
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checkbox: true,
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number: true,
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message: true,
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payment: false,
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},
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})
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```
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### `redirectRelationships`
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The `redirectRelationships` property is an array of collection slugs that, when enabled, are populated as options in the form's `redirect` field. This field is used to redirect the user to a dedicated confirmation page upon form submission (optional).
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```ts
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// payload.config.ts
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formBuilder({
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// ...
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redirectRelationships: ['pages'],
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})
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```
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### `beforeEmail`
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The `beforeEmail` property is a [beforeChange](<[beforeChange](https://payloadcms.com/docs/hooks/globals#beforechange)>) hook that is called just after emails are prepared, but before they are sent. This is a great place to inject your own HTML template to add custom styles.
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```ts
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// payload.config.ts
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formBuilder({
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// ...
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beforeEmail: (emailsToSend) => {
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// modify the emails in any way before they are sent
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return emails.map((email) => ({
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...email,
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html: email.html, // transform the html in any way you'd like (maybe wrap it in an html template?)
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}))
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},
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})
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```
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### `formOverrides`
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Override anything on the `forms` collection by sending a [Payload Collection Config](https://payloadcms.com/docs/configuration/collections) to the `formOverrides` property.
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Note that the `fields` property is a function that receives the default fields and returns an array of fields. This is because the `fields` property is a special case that is merged with the default fields, rather than replacing them. This allows you to map over default fields and modify them as needed.
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```ts
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// payload.config.ts
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formBuilder({
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// ...
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formOverrides: {
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slug: 'contact-forms',
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access: {
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read: () => true,
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update: () => false,
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},
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fields: ({ defaultFields }) => {
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return [
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...defaultFields,
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{
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name: 'custom',
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type: 'text',
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},
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]
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},
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},
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})
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```
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### `formSubmissionOverrides`
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Override anything on the `form-submissions` collection by sending a [Payload Collection Config](https://payloadcms.com/docs/configuration/collections) to the `formSubmissionOverrides` property.
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<Banner type="warning">
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By default, this plugin relies on [Payload access
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control](https://payloadcms.com/docs/access-control/collections) to restrict the `update` and
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`read` operations on the `form-submissions` collection. This is because _anyone_ should be able to
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create a form submission, even from a public-facing website, but _no one_ should be able to update
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a submission one it has been created, or read a submission unless they have permission. You can
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override this behavior or any other property as needed.
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</Banner>
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```ts
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// payload.config.ts
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formBuilder({
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// ...
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formSubmissionOverrides: {
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slug: 'leads',
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fields: ({ defaultFields }) => {
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return [
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...defaultFields,
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{
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name: 'custom',
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type: 'text',
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},
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]
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},
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},
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})
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```
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### `handlePayment`
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The `handlePayment` property is a [beforeChange](<[beforeChange](https://payloadcms.com/docs/hooks/globals#beforechange)>) hook that is called upon form submission. You can integrate into any third-party payment processing API here to accept payment based on form input. You can use the `getPaymentTotal` function to calculate the total cost after all conditions have been applied. This is only applicable if the form has enabled the `payment` field.
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First import the utility function. This will execute all of the price conditions that you have set in your form's `payment` field and returns the total price.
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```ts
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// payload.config.ts
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import { getPaymentTotal } from '@payloadcms/plugin-form-builder'
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```
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Then in your plugin's config:
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```ts
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// payload.config.ts
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formBuilder({
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// ...
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handlePayment: async ({ form, submissionData }) => {
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// first calculate the price
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const paymentField = form.fields?.find((field) => field.blockType === 'payment')
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const price = getPaymentTotal({
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basePrice: paymentField.basePrice,
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priceConditions: paymentField.priceConditions,
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fieldValues: submissionData,
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})
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// then asynchronously process the payment here
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},
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})
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```
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## Fields
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Each field represents a form input. To override default settings pass either a boolean value or a partial [Payload Block](https://payloadcms.com/docs/fields/blocks) _keyed to the block's slug_. See [Field Overrides](#field-overrides) for more details on how to do this.
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<Banner type="info">
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<strong>Note:</strong>
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"Fields" here is in reference to the _fields to build forms with_, not to be confused with the _fields
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of a collection_ which are set via `formOverrides.fields`.
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</Banner>
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### Text
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Maps to a `text` input in your front-end. Used to collect a simple string.
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| Property | Type | Description |
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| -------------- | -------- | ---------------------------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | string | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. |
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### Textarea
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Maps to a `textarea` input on your front-end. Used to collect a multi-line string.
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| Property | Type | Description |
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| -------------- | -------- | ---------------------------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | string | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. |
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### Select
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Maps to a `select` input on your front-end. Used to display a list of options.
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| Property | Type | Description |
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| -------------- | -------- | -------------------------------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | string | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. |
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| `options` | array | An array of objects with `label` and `value` properties. |
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### Email (field)
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Maps to a `text` input with type `email` on your front-end. Used to collect an email address.
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| Property | Type | Description |
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| -------------- | -------- | ---------------------------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | string | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. |
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### State
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Maps to a `select` input on your front-end. Used to collect a US state.
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| Property | Type | Description |
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| -------------- | -------- | ---------------------------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | string | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. |
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### Country
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Maps to a `select` input on your front-end. Used to collect a country.
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| Property | Type | Description |
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| -------------- | -------- | ---------------------------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | string | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. |
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### Checkbox
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Maps to a `checkbox` input on your front-end. Used to collect a boolean value.
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| Property | Type | Description |
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| -------------- | -------- | ---------------------------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | checkbox | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. |
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### Number
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Maps to a `number` input on your front-end. Used to collect a number.
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| Property | Type | Description |
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| -------------- | -------- | ---------------------------------------------------- | --- | -------------- | ------ | ------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | string | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. | | `defaultValue` | number | The default value of the field. |
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### Message
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Maps to a `RichText` component on your front-end. Used to display an arbitrary message to the user anywhere in the form.
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| property | type | description |
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| --------- | -------- | ----------------------------------- |
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| `message` | richText | The message to display on the form. |
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### Payment
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Add this field to your form if it should collect payment. Upon submission, the `handlePayment` callback is executed with the form and submission data. You can use this to integrate with any third-party payment processing API.
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| property | type | description |
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| ----------------- | -------- | --------------------------------------------------------------------------------- |
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| `name` | string | The name of the field. |
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| `label` | string | The label of the field. |
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| `defaultValue` | number | The default value of the field. |
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| `width` | string | The width of the field on the front-end. |
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| `required` | checkbox | Whether or not the field is required when submitted. |
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| `priceConditions` | array | An array of objects that define the price conditions. See below for more details. |
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#### Price Conditions
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Each of the `priceConditions` are executed by the `getPaymentTotal` utility that this plugin provides. You can call this function in your `handlePayment` callback to dynamically calculate the total price of a form upon submission based on the user's input. For example, you could create a price condition that says "if the user selects 'yes' for this checkbox, add $10 to the total price".
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| property | type | description |
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| ------------------ | ------------ | ------------------------------------------------ |
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| `fieldToUse` | relationship | The field to use to determine the price. |
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| `condition` | string | The condition to use to determine the price. |
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| `valueForOperator` | string | The value to use for the operator. |
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| `operator` | string | The operator to use to determine the price. |
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| `valueType` | string | The type of value to use to determine the price. |
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| `value` | string | The value to use to determine the price. |
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### Field Overrides
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You can provide your own custom fields by passing a new [Payload Block](https://payloadcms.com/docs/fields/blocks#block-configs) object into `fields`. You can override or extend any existing fields by first importing the `fields` from the plugin:
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```ts
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import { fields } from '@payloadcms/plugin-form-builder'
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```
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Then merging it into your own custom field:
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```ts
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// payload.config.ts
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formBuilder({
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// ...
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fields: {
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text: {
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...fields.text,
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labels: {
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singular: 'Custom Text Field',
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plural: 'Custom Text Fields',
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},
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},
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},
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})
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```
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## Email
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This plugin relies on the [email configuration](https://payloadcms.com/docs/email/overview) defined in your `payload.init()`. It will read from your config and attempt to send your emails using the credentials provided.
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## TypeScript
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All types can be directly imported:
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```ts
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import type {
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PluginConfig,
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Form,
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FormSubmission,
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FieldsConfig,
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BeforeEmail,
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HandlePayment,
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...
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} from "@payloadcms/plugin-form-builder/types";
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```
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## Examples
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The [Examples Directory](https://github.com/payloadcms/payload/tree/main/examples) contains an official [Form Builder Plugin Example](https://github.com/payloadcms/payload/tree/main/examples/form-builder) which demonstrates exactly how to configure this plugin in Payload and implement it on your front-end. We've also included an in-depth walk-through of how to build a form from scratch in our [Form Builder Plugin Blog Post](https://payloadcms.com/blog/create-custom-forms-with-the-official-form-builder-plugin).
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## Troubleshooting
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Below are some common troubleshooting tips. To help other developers, please contribute to this section as you troubleshoot your own application.
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#### SendGrid 403 Forbidden Error
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- If you are using [SendGrid Link Branding](https://docs.sendgrid.com/ui/account-and-settings/how-to-set-up-link-branding) to remove the "via sendgrid.net" part of your email, you must also setup [Domain Authentication](https://docs.sendgrid.com/ui/account-and-settings/how-to-set-up-domain-authentication). This means you can only send emails from an address on this domain — so the `from` addresses in your form submission emails **_cannot_** be anything other than `something@your_domain.com`. This means that from `{{email}}` will not work, but `website@your_domain.com` will. You can still send the form's email address in the body of the email.
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## Screenshots
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<br />
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<br />
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<br />
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<br />
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<br />
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