nx/docs/shared/recipes/tips-n-tricks/wait-for-tasks.md
2023-08-28 12:39:31 +02:00

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# Wait for Tasks to Finish
If you want to ensure that a set up task has been run before you run a particular task, you want to use the [`dependsOn` property](/reference/project-configuration#dependson).
For instance, if you have a React app called `store` and a database project called `db`, you may want to run `nx clean db` before you run `nx e2e store`.
To set that up, you would edit the `store` app's `project.json` file:
{% tabs %}
{% tab label="Version 16+" %}
```json {% fileName="/apps/store/project.json" %}
{
"targets": {
"e2e": {
"dependsOn": [
{
"projects": ["db"],
"target": "clean"
}
]
}
}
}
```
{% /tab %}
{% tab label="Version < 16" %}
```jsonc {% fileName="/apps/store/project.json" %}
{
"targets": {
"clean-db": {
// Workaround task
"command": "nx clean db"
},
"e2e": {
"dependsOn": ["clean-db"] // Run clean-db on this project
}
}
}
```
{% /tab %}
{% /tabs %}
This will make it so that all you need to do is run `nx e2e store` and Nx will make sure that `nx clean db` is run first.