# Script editor

> How do I write scripts in Windmill? Use the script editor with support for TypeScript, Python, Go, PHP, Bash, SQL, Rust, Ruby, R, dbt and Docker.

In Windmill, Scripts are the basis of all major features (they are the steps of [flows](../getting_started/6_flows_quickstart/index.mdx), [linked to apps components](../apps/3_app-runnable-panel.mdx), used as [backend runnables](../full_code_apps/2_backend_runnables/index.mdx) in full-code apps, or can be [run as standalone](../triggers/index.mdx)).

A Script can be written in:
[TypeScript (Bun & Deno)](../getting_started/0_scripts_quickstart/1_typescript_quickstart/index.mdx),
[Python](../getting_started/0_scripts_quickstart/2_python_quickstart/index.mdx),
[Go](../getting_started/0_scripts_quickstart/3_go_quickstart/index.mdx),
[Bash](../getting_started/0_scripts_quickstart/4_bash_quickstart/index.mdx), [PowerShell](../getting_started/0_scripts_quickstart/4_bash_quickstart/index.mdx), [Nu](../getting_started/0_scripts_quickstart/4_bash_quickstart/index.mdx),
[SQL](../getting_started/0_scripts_quickstart/5_sql_quickstart/index.mdx) (PostgreSQL, MySQL, MS SQL, BigQuery, Snowflake, Oracle, DuckDB),
[REST & GraphQL](../getting_started/0_scripts_quickstart/6_rest_grapqhql_quickstart/index.mdx),
[PHP](../getting_started/0_scripts_quickstart/8_php_quickstart/index.mdx),
[Rust](../getting_started/0_scripts_quickstart/9_rust_quickstart/index.mdx),
[C#](../getting_started/0_scripts_quickstart/11_csharp_quickstart/index.mdx),
[Java](../getting_started/0_scripts_quickstart/13_java_quickstart/index.mdx),
[Ruby](../getting_started/0_scripts_quickstart/14_ruby_quickstart/index.mdx),
[Ansible](../getting_started/0_scripts_quickstart/10_ansible_quickstart/index.mdx),
[R](../getting_started/0_scripts_quickstart/15_rlang_quickstart/index.mdx) or
[dbt](../getting_started/0_scripts_quickstart/16_dbt_quickstart/index.mdx). Any other language can run through [Docker](../getting_started/0_scripts_quickstart/7_docker_quickstart/index.mdx). Its
two most important components are the input [JSON Schema](../core_concepts/13_json_schema_and_parsing/index.mdx)
specification and the [code content](../code_editor/index.mdx).

Scripts in languages with dependencies (TypeScript, Python, Go, PHP, Rust, C#, Java, Ruby and more) also have an
auto-generated [lockfile](../advanced/6_imports/index.mdx) that ensures that executions of the same Script always
use the exact same set of versioned dependencies. To fit Windmill's execution model, the code must always have a
main function, which is its entrypoint when executed as an individual serverless
endpoint or a [Flow](../flows/1_flow_editor.mdx) module and typed parameters used to infer the script's inputs and [auto-generated UI](../core_concepts/6_auto_generated_uis/index.mdx):

```typescript
async function main(param1: string, param2: { nested: string }) {
	...
}
```

```python
def main(param1: str, param2: dict, ...):
	...
```

```go
  func main(x string, nested struct{ Foo string \`json:"foo"\` }) (interface{}, error) {
  	...
  }
```

For scripts with numerous lines of code (+1,000), we recommend splitting the logic into [Flows](../flows/1_flow_editor.mdx) or [Sharing common logic](../advanced/5_sharing_common_logic/index.mdx).

## Script editor features

The Script editor is made of the following features:

## Workflows as code

One way to write distributed programs that execute distinct jobs is to use [flows](../flows/1_flow_editor.mdx) that chain scripts together.

Another approach is to write a program that defines the jobs and their dependencies, and then execute that program directly in your script. This is known as [workflows as code](../core_concepts/31_workflows_as_code/index.mdx). Use `workflow()` and `task()` to define checkpoint-based orchestration where each task runs as a separate job with its own logs, and the workflow suspends between tasks.

![Workflows as code](../core_concepts/31_workflows_as_code/wac-editor-1.png 'Workflows as code')

## Code editor features

For features specific to the [Code editor](../code_editor/index.mdx), check: