Publish [Composer](https://getcomposer.org/) packages for your user or organization.
**Table of Contents**
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## Requirements
To work with the Composer package registry, you can use [Composer](https://getcomposer.org/download/) to consume and a HTTP upload client like `curl` to publish packages.
## Publish a package
To publish a Composer package perform a HTTP PUT operation with the package content in the request body.
The package content must be the zipped PHP project with the `composer.json` file.
You cannot publish a package if a package of the same name and version already exists. You must delete the existing package first.
```
PUT https://gitea.example.com/api/packages/{owner}/composer
```
| Parameter | Description |
| ---------- | ----------- |
| `owner` | The owner of the package. |
If the `composer.json` file does not contain a `version` property, you must provide it as a query parameter:
```
PUT https://gitea.example.com/api/packages/{owner}/composer?version={x.y.z}
If you are using 2FA or OAuth use a [personal access token]({{< relref "doc/developers/api-usage.en-us.md#authentication" >}}) instead of the password.
The server responds with the following HTTP Status codes.
| HTTP Status Code | Meaning |
| ----------------- | ------- |
| `201 Created` | The package has been published. |
| `400 Bad Request` | The package name and/or version are invalid or a package with the same name and version already exist. |
## Configuring the package registry
To register the package registry you need to add it to the Composer `config.json` file (which can usually be found under `<user-home-dir>/.composer/config.json`):