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/*
* Hurl (https://hurl.dev)
* Copyright (C) 2026 Orange
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
use hurl_core::ast::{SourceInfo, Template};
use crate::jsonpath;
use crate::runner::template::eval_template;
use crate::runner::{RunnerError, RunnerErrorKind, Value, VariableSet};
/// Evaluates a JSONPath expression `expr` against a `value`.
pub fn eval_jsonpath(
value: &Value,
expr: &Template,
variables: &VariableSet,
source_info: SourceInfo,
assert: bool,
) -> Result<Option<Value>, RunnerError> {
let json = match value {
Value::String(text) => match serde_json::from_str(text) {
Err(_) => {
return Err(RunnerError::new(
source_info,
RunnerErrorKind::FilterInvalidInputValue(
"value is not a valid JSON".to_string(),
),
false,
));
}
Ok(v) => v,
},
// FIXME: for the moment `jsonpath` filter accepts only string. We need to decide if the filter
// accept any value or if we need a `toJson` filter that takes any value and render to string.
// See <https://github.com/Orange-OpenSource/hurl/issues/4249>
// v => match v.try_to_json() {
// Some(v) => v,
// None => {
// let kind = RunnerErrorKind::FilterInvalidInput(v.kind().to_string());
// return Err(RunnerError::new(source_info, kind, assert));
// }
// },
v => {
let kind = RunnerErrorKind::FilterInvalidInputType {
actual: v.kind().to_string(),
expected: "string".to_string(),
};
return Err(RunnerError::new(source_info, kind, assert));
}
};
eval_jsonpath_json(&json, expr, variables)
}
impl Value {
// /// Deserializes this [`Value`] to a JSON [`serde_json::Value`].
// fn try_to_json(&self) -> Option<serde_json::Value> {
// match self {
// Value::Bool(value) => Some(serde_json::Value::Bool(*value)),
// Value::List(values) => values
// .iter()
// .map(|v| v.try_to_json())
// .collect::<Option<_>>(),
// Value::Null => Some(serde_json::Value::Null),
// Value::Number(Number::Float(value)) => {
// let number = serde_json::Number::from_f64(*value)?;
// Some(serde_json::Value::Number(number))
// }
// Value::Number(Number::Integer(value)) => {
// let number = serde_json::Number::from_i128(*value as i128)?;
// Some(serde_json::Value::Number(number))
// }
// Value::Number(Number::BigInteger(value)) => match serde_json::Number::from_str(value) {
// Ok(n) => Some(serde_json::Value::Number(n)),
// Err(_) => None,
// },
// Value::Object(values) => {
// let mut obj = serde_json::Map::new();
// for (key, value) in values {
// let value = value.try_to_json()?;
// obj.insert(key.clone(), value);
// }
// Some(serde_json::Value::Object(obj))
// }
// Value::String(value) => Some(serde_json::Value::String(value.clone())),
// Value::Regex(_)
// | Value::Nodeset(_)
// | Value::HttpResponse(_)
// | Value::Date(_)
// | Value::Bytes(_)
// | Value::Unit => None,
// }
// }
}
pub fn eval_jsonpath_json(
json: &serde_json::Value,
expr: &Template,
variables: &VariableSet,
) -> Result<Option<Value>, RunnerError> {
let expr_str = eval_template(expr, variables)?;
let expr_source_info = expr.source_info;
let jsonpath_query = match jsonpath::parse(&expr_str) {
Ok(q) => q,
Err(_) => {
let kind = RunnerErrorKind::QueryInvalidJsonpathExpression { value: expr_str };
return Err(RunnerError::new(expr_source_info, kind, false));
}
};
let results = jsonpath_query.eval(json);
match results.len() {
0 => Ok(None),
1 => Ok(Some(Value::from_json(&results[0]))),
_ => Ok(Some(Value::from_json(&serde_json::Value::Array(results)))),
}
}
#[cfg(test)]
mod tests {
use crate::runner::filter::eval::eval_filter;
use crate::runner::{Value, VariableSet};
use hurl_core::ast::{Filter, FilterValue, SourceInfo, Template, TemplateElement, Whitespace};
use hurl_core::reader::Pos;
use hurl_core::types::ToSource;
#[test]
fn eval_filter_jsonpath() {
let variables = VariableSet::new();
let filter = Filter {
source_info: SourceInfo::new(Pos::new(1, 1), Pos::new(1, 1)),
value: FilterValue::JsonPath {
expr: Template::new(
Some('"'),
vec![TemplateElement::String {
value: "$.message".to_string(),
source: "$.message".to_source(),
}],
SourceInfo::new(Pos::new(0, 0), Pos::new(0, 0)),
),
space0: Whitespace {
value: String::new(),
source_info: SourceInfo::new(Pos::new(0, 0), Pos::new(0, 0)),
},
},
};
assert_eq!(
eval_filter(
&filter,
&Value::String(r#"{"message":"Hello"}"#.to_string()),
&variables,
false
)
.unwrap()
.unwrap(),
Value::String("Hello".to_string())
);
}
// #[test]
// fn test_try_to_json_bool() {
// let input = Value::Bool(true);
// let expected = json!(true);
// let actual = input.try_to_json().unwrap();
// assert_eq!(actual, expected);
//
// let input = Value::Bool(false);
// let expected = serde_json::Value::Bool(false);
// let actual = input.try_to_json().unwrap();
// assert_eq!(actual, expected);
// }
//
// #[test]
// fn test_try_to_json_number() {
// let input = Value::Number(Number::Integer(42));
// let expected = json!(42);
// let actual = input.try_to_json().unwrap();
// assert_eq!(actual, expected);
//
// let input = Value::Number(Number::Float(3.33));
// let expected = json!(3.33);
// let actual = input.try_to_json().unwrap();
// assert_eq!(actual, expected);
//
// let input = Value::Number(Number::BigInteger("10000000000000000365".to_string()));
// let expected: serde_json::Value = serde_json::from_str("10000000000000000365").unwrap();
// let actual = input.try_to_json().unwrap();
// assert_eq!(actual, expected);
// }
//
// #[test]
// fn test_try_to_json_list() {
// let input = Value::List(vec![
// Value::String("foo".to_string()),
// Value::String("bar".to_string()),
// Value::String("baz".to_string()),
// ]);
// let expected = json!(["foo", "bar", "baz"]);
// let actual = input.try_to_json().unwrap();
// assert_eq!(actual, expected);
// }
//
// #[test]
// fn test_try_to_json_object() {
// let input = Value::Object(vec![
// ("name".to_string(), Value::String("bob".to_string())),
// ("age".to_string(), Value::Number(Number::Integer(33))),
// ]);
// let expected = json!({
// "name": "bob",
// "age": 33
// });
// let actual = input.try_to_json().unwrap();
// assert_eq!(actual, expected);
// }
}