# 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 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) or
[R](../getting_started/0_scripts_quickstart/15_rlang_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: