vector_vrl_functions/
get_secret.rs

1use vrl::prelude::*;
2
3fn get_secret(ctx: &mut Context, key: Value) -> std::result::Result<Value, ExpressionError> {
4    let key_str = key.as_str().expect("argument must be a string");
5    let value = match ctx.target().get_secret(key_str.as_ref()) {
6        Some(secret) => secret.into(),
7        None => Value::Null,
8    };
9    Ok(value)
10}
11
12#[derive(Clone, Copy, Debug)]
13pub struct GetSecret;
14
15impl Function for GetSecret {
16    fn identifier(&self) -> &'static str {
17        "get_secret"
18    }
19
20    fn parameters(&self) -> &'static [Parameter] {
21        &[Parameter {
22            keyword: "key",
23            kind: kind::BYTES,
24            required: true,
25        }]
26    }
27
28    fn examples(&self) -> &'static [Example] {
29        &[example!(
30            title: "Get the datadog api key",
31            source: r#"get_secret("datadog_api_key")"#,
32            result: Ok("secret value"),
33        )]
34    }
35
36    fn compile(
37        &self,
38        _state: &TypeState,
39        _ctx: &mut FunctionCompileContext,
40        arguments: ArgumentList,
41    ) -> Compiled {
42        let key = arguments.required("key");
43        Ok(GetSecretFn { key }.as_expr())
44    }
45}
46
47#[derive(Debug, Clone)]
48struct GetSecretFn {
49    key: Box<dyn Expression>,
50}
51
52impl FunctionExpression for GetSecretFn {
53    fn resolve(&self, ctx: &mut Context) -> Resolved {
54        let key = self.key.resolve(ctx)?;
55        get_secret(ctx, key)
56    }
57
58    fn type_def(&self, _: &TypeState) -> TypeDef {
59        TypeDef::bytes().add_null().infallible()
60    }
61}
vector_vrl_functions/get_secret.rs

vector_vrl_functions/
get_secret.rs
