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It's recommended to use the Wix CLI or self-hosted to create new apps to ensure full compatibility and long-term support.

Blocks apps aren't supported in the new Wix Harmony editor

Get to know our frameworks

Select an app template built on your preferred framework.

Build native Wix apps using a drag-and-drop editor, and add custom code for your business logic.

Streamline your app development process by coding on your local machine with your preferred IDE.

Take full control over your app's tech stack, deployment, and hosting.

App templates

Wix Blocks templates

Wix CLI templates

Self-hosted templates

Kickstart app development and get a practical foundation that you can customize and build upon with templates built for your preferred Wix framework.

Wix App Templates for Developers

This example apps can be used as a starting point for building your own app, for concrete examples of how to use Wix framework, or for inspiration.

Choose a template.<0 />Build an app.

Browse by:

How to build it step by step:

This template is built with:

Read how this template was built, step by step.

How we built this template

Deployment instructions:

Open in the new AI-based app builder, where you can create extensions with AI, open the terminal and use existing CLI commands, or code manually. You can also connect to GitHub and work locally.

App Builder (via online IDE)

Code in your preferred IDE, and collaborate with your team using GitHub. Your code is deployed and hosted on the Wix cloud.

Wix CLI (via local environment)

How to start:

Choose a package manager and run the command in your terminal.

2. Copy command

Before you get started, make sure you have the following:

1. Complete prerequisites

Get started with Wix CLI

Begin by setting up your Next.js project with your preferred hosting platform.

Select your hosting service

Start the deployment flow and set up your template repo on Netlify. After you finish set up, come back here and add your Netlify custom domain.

Copy the code from our Git repo to deploy your app on any platform that supports Next.js.

Start the deployment flow and set up your template repo on Vercel. After you finish set up, come back here and add your Vercel generated URL.

Add the base URL and give your app a name.

App details

Go to the app dashboard and test your app to ensure a smooth integration within the Wix ecosystem. <0>Learn more about app checks and testing</0>

Define your environment

Terminal

Related templates

Note

Warning

Your app name will be used as the namespace suffix.

Name your app to generate a namespace. This lets you refer to your app in code later on.

# About the Data Items API

> **Note for app developers:** Wix Data APIs require the site's [code editor](portalId::bcc88c7b-94f5-4c35-b1cb-d7a20f2669b0resourceId::fd577f1d-9c28-4aba-acc2-d08943df22e2#code-editor*fallback::https://dev.wix.com/docs/develop-websites/articles/getting-started/development-environments#code-editor) to be enabled. If you are building a Wix app, add a [data collections extension](fallback::https://dev.wix.com/docs/build-apps/develop-your-app/extensions/backend-extensions/data-collections/about-data-collections-extensions) to automatically enable the code editor and create data collections when your app is installed on a site.


The Data Items API allows you to access and manage items in a Wix site's data collections.

With the Data Items API, you can:

- Create and manage data items in a site's collections.
- Retrieve data items from a collection individually or with filtering and sorting queries.
- Create and manage reference fields.
- Update or remove many items asynchronously by filter.
- Perform aggregations and calculations on data in collections.
- Run advanced aggregation pipelines for complex data transformations.
- Truncate a data collection, removing all its contents.

The Data Items API only works with existing collections. To create and manage data collections, use the [Data Collections API](portalId::d1972c09-74e2-4d36-a6f2-54e3310d4ad9resourceId::c54f4e4c-34cf-4541-9844-04cd84f5662e*fallback::https://dev.wix.com/api/rest/wix-data/wix-data/data-collections).

## Before you begin

It's important to note the following points before starting to code:

- The maximum size of an item you can save to a collection is 500 kb.
- We don't recommend updating a data item more than once per second.
- When using data retrieval endpoints such as [Query Data Items](portalId::d1972c09-74e2-4d36-a6f2-54e3310d4ad9resourceId::66a530fa-224c-48ee-841f-99a87365c6c3slug::query-data-items*fallback::https://dev.wix.com/api/rest/wix-data/wix-data/data-items/query-data-items) or [Get Data Item](portalId::d1972c09-74e2-4d36-a6f2-54e3310d4ad9resourceId::66a530fa-224c-48ee-841f-99a87365c6c3slug::get-data-item*fallback::https://dev.wix.com/api/rest/wix-data/wix-data/data-items/get-data-item) following an update to a collection's data, the data retrieved may not yet contain the most recent changes. See [Wix Data and Eventual Consistency](portalId::d1972c09-74e2-4d36-a6f2-54e3310d4ad9resourceId::673a16ab-f6a0-46ea-9e86-13da980a92ff*fallback::https://dev.wix.com/api/rest/wix-data/wix-data/eventual-consistency) for more information and instructions for overriding this.
- When querying [Wix app collections](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/collection-management/wix-app-collections/introduction), check which fields can be filtered in the relevant collection field article.
- Updating a data item replaces the existing item entirely. If the existing item had fields with values and those fields aren't included in the updated item, the values in those properties are lost.
- Aggregations can't be performed on [Wix app collections](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/collection-management/wix-app-collections/introduction).
- After connecting external database collections to a Wix site using the [External Database Connections API](portalId::d1972c09-74e2-4d36-a6f2-54e3310d4ad9resourceId::ae9cab4a-b40b-48f1-b1b3-e659595e3440*fallback::https://dev.wix.com/api/rest/wix-data/wix-data/external-database-connections), you can use the Data Items API to manage and retrieve data from those collections as if they were Wix Data collections.

## Choose the right write method

Choose the write method that matches the change you want to make:

- Call [Save Data Item](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/data-items/save-data-item) for rerunnable imports or sync jobs that should create a new item when it doesn't exist and update it when it does.
- Call [Patch Data Item](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/data-items/patch-data-item) or [Bulk Patch Data Items](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/data-items/bulk-patch-data-items) when you want to change only specific fields, keep the rest of the payload unchanged, or apply arithmetic actions such as incrementing a numeric field.
- Call [Update Data Item](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/data-items/update-data-item) or [Bulk Update Data Items](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/data-items/bulk-update-data-items) only when you intend to replace the existing payload with the values you send.

## Collection IDs and field IDs

You need collection IDs and field IDs when working with the Data Items API to interact with a site's data. Collection IDs identify which specific collection your API calls should target. Field IDs specify which fields to include in queries or which fields to update when modifying collection items.

A collection ID is the user-defined identifier set when the collection is created, not a GUID. For example, a Wix user may set a collection ID to `EvalCustomers` or `EvalSystemLogs`. Item IDs (`dataItem.id`) are auto-assigned if you don't pass one, though you can also supply your own stable string when inserting an item.



## Use cases
+ [Populate a collection with content.](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/data-items/sample-flows)
+ [Query data items by category.](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/data-items/sample-flows)
+ [Get statistics for data item by category.](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/data-items/sample-flows)

# Data Items API: Sample Use Cases & Flows

This article presents possible use cases and corresponding sample flows that you can support. This can be a helpful starting point as you plan your implementation.

## Populate a tutorials collection with content

You can use the Data Items API to programmatically add content to an existing collection.

This flow uses bulk operations to efficiently add multiple tutorials into [an existing tutorials collection](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/collection-management/data-collections/sample-flows).

To populate the tutorials collection:

1. Call [Bulk Insert Data Items](fallback::https://dev.wix.com/docs/rest/business-solutions/cms/data-items/bulk-insert-data-items) with `dataCollectionId` set to `tutorials`. For each `dataItem`, include `fields` as structured in the data collection to be inserted. For reference fields like `category` and `author`, provide the ID of the referenced item from their respective collections.
1. Check the `results` array in the response to confirm each item inserted successfully. If any items fail, the `itemMetadata.error` property of the corresponding entry contains details about the error.

## Query tutorials by category

You can retrieve tutorials from [an existing tutorials collection](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/collection-management/data-collections/sample-flows) filtered by category and sorted by publish date. This is useful for displaying a list of tutorials in a specific topic area.

To query tutorials by category:

1. Call [Query Data Items](fallback::https://dev.wix.com/docs/rest/business-solutions/cms/data-items/query-data-items) with `dataCollectionId` set to `tutorials` and filter by `category` sorted by `publishDate`.

## Get tutorial statistics by category

You can calculate aggregate statistics across tutorials in [an existing tutorials collection](fallback::https://dev.wix.com/docs/api-reference/business-solutions/cms/collection-management/data-collections/sample-flows), such as the total number of tutorials and average reading time per category. This is useful for analytics dashboards or category overview pages.

To aggregate tutorial data:

1. Call [Aggregate Data Items](fallback::https://dev.wix.com/docs/rest/business-solutions/cms/data-items/aggregate-data-items) with `dataCollectionId` set to `tutorials`.
1. In the `aggregation` object, set `groupingFields` to `["category"]` to group results by category.
1. In the `operations` array, add aggregation operations:
    - Add an operation with `resultFieldName` set to `totalTutorials` and `itemCount` set to an empty object to count tutorials per category.
    - Add an operation with `resultFieldName` set to `avgReadingTime`, `average.itemFieldName` set to `estimatedTime` to calculate the average reading time.
1. The response contains 1 result per category with the calculated `totalTutorials` and `avgReadingTime` values.

Bulk Insert Data Item References