Create script and document how to create a Project Exports using Direct Transfer
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The [Direct Transfer Export Relation API](https://docs.gitlab.com/api/project_relations_export/#schedule-new-export) exports nearly all the files needed to create a Project Export archive. Additionally, because it exports files in smaller batches, it can successfully export large Projects that cannot be exported using a Project file base.
A script and documentation on how to use the Direct Transfer Export Relation API to create a Project Export archive can serve as an alternative for failed project exports.
Please note that the Direct Transfer Export Relation API does not export members, badges, wiki bundles, and snippet bundles. The script must manually export these relations using REST or GraphQL.
**Overall script steps**
1. Trigger relations export
2. Wait exports to complete
3. Download all relations files
4. For batched relations, concatenate them as a single ndjson file
5. Fetch members via API and create the project_members.ndjson file
6. Create metadata files (GITLAB_REVISION, GITLAB_VERSION, VERSION)
7. Fetch badges via Rest API and create badges.ndjson
8. Clone snippets and create bundle files
9. Clone wiki and create bundle file
10. Move all files to a temporary folder. The files should follow the Project archive folder structure:
```
GITLAB_REVISION
GITLAB_VERSION
VERSION
lfs-objects.json
lfs-objects/
project.bundle
project.wiki.bundle
snippets/
uploads/
tree
project.json
project
auto_devops.ndjson
boards.ndjson
ci_cd_settings.ndjson
ci_pipelines_notes.ndjson
ci_pipelines.ndjson
container_expiration_policy.ndjson
custom_attributes.ndjson
error_tracking_setting.ndjson
external_pull_requests.ndjson
issues.ndjson
labels.ndjson
merge_requests.ndjson
metrics_setting.ndjson
milestones.ndjson
pipeline_schedules.ndjson
project_badges.ndjson
project_feature.ndjson
project_members.ndjson
prometheus_metrics.ndjson
protected_branches.ndjson
protected_environments.ndjson
protected_tags.ndjson
push_rule.ndjson
releases.ndjson
security_setting.ndjson
service_desk_setting.ndjson
snippets.ndjson
```
11. Create the project archive
### Documentation
Document it in user docs. Link in Importers FAQs. Inform PS and Support
issue