# tGSConnection

Provides the authentication information for making requests to the Google Cloud Storage system and enables the reuse of the connection it creates to Google Cloud Storage.

## tGSConnection Standard properties

These properties are used to configure tGSConnection running in the Standard Job framework.

The Standard tGSConnection component belongs to the Big Data and the Cloud families.

The component in this framework is available in all Talend products.

## Basic settings

| Properties | Description |
| --- | --- |
| Credential type | Select the mode to be used to authenticate to your project.<br><br><ul> <li><span>Service account</span>: authenticate using a Google account                     that is associated with your Google Cloud Platform project. When selecting this                     mode, the access key must be provided in the <span>Service account                        key</span> field.</li> <li><span>Workload Identity Federation</span>: authenticate using an                     external identity provider, such as AWS, Azure, or OIDC, without needing a                     service account key. When selecting this mode, the identity federation                     configuration must be provided in the <span>Client library configuration                        file</span> field.</li> <li><span>Application Default Credentials</span>: authenticate using the                     Application Default Credentials. When selecting this mode, no additional                     parameters need to be defined as credentials are automatically found based on                     the application environment.</li> <li> <span>OAuth Access Token</span>: authenticate using an OAuth access                     token. When selecting this mode, the token must be provided in the                        <span>OAuth Access Token</span> field. </li> </ul><br><br>To know more about the Google Cloud authentication process, read [the Google Cloud documentation](https://cloud.google.com/docs/authentication/). |
| Service account key | Click the [...] button next to the service account key<br>field to browse for the JSON file that contains your service account key.<br><br>This property is only available when you authenticate using Service<br>account. |
| OAuth Access Token | Enter an access token.<br><br>The lifetime of the token is one hour. The component<br>does not perform the token refresh operation but will fetch the new access token<br>to operate beyond the one-hour limit.<br><br><br>This property is only available when you<br>authenticate using OAuth Access Token. |
| Project ID | When the credential type is set to OAuth Access<br>Token, specify the project ID to which the new bucket<br>belongs. |

## Advanced settings

| Properties | Description |
| --- | --- |
| Use a custom endpoint | Select this check box to use a private endpoint rather than the default one.<br><br>When selected, enter the URL in the Google Storage Private API<br>URL property, by respecting the following format:<br>"https://storage.goggleapis.com".<br><br>For more information,<br>see [Access Google APIs through endpoints](https://cloud.google.com/vpc/docs/configure-private-service-connect-apis) from<br>Google documentation.<br><br>This property is only available when you authenticate<br>using Service account and Application Default<br>Credentials. |
| tStatCatcher Statistics | Select this check box to gather the Job processing metadata at the Job level as well as at each component level. |

## Global Variables

| Variables | Description |
| --- | --- |
| Global Variables | ERROR\_MESSAGE: the error message generated by the<br>component when an error occurs. This is an After variable and it returns a string. This<br>variable functions only if the Die on error checkbox is<br>cleared, if the component has this checkbox.<br><br>A Flow variable functions during the execution of a component<br>while an After variable functions after the execution of the component.<br><br>To fill up a field or expression with a variable, press Ctrl+Space to access the variable list and choose the variable to use from<br>it.<br><br>For more information about variables, see [Using contexts and variables](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/contexts-and-variables). |

## Usage

| Usage guidance | Description |
| --- | --- |
| **Usage rule** | This component is generally used with other Google Cloud Storage components, particularly tGSClose. |

**Related concepts**

* [Managing files with Google Cloud Storage](https://help.qlik.com/talend/en-US/components/8.0/gs/tgscopy-tgslist-tlogrow-managing-files-with-google-cloud-storage-standard-component-the)