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use crate::api::*;
use crate::{ApiError, ClientConfig, HttpClient, QueryBuilder, RequestOptions};
use crate::{AsyncPaginator, PaginationResult};
use reqwest::Method;
pub struct MetricsClient {
pub http_client: HttpClient,
}
impl MetricsClient {
pub fn new(config: ClientConfig) -> Result<Self, ApiError> {
Ok(Self {
http_client: HttpClient::new(config.clone())?,
})
}
/// Returns a paginated list of billable metrics. Supports filtering by event name, aggregation method, aggregation field, and tag IDs. Results can be sorted by name.
///
/// # Arguments
///
/// * `aggregation_field` - Filter by aggregation field (comma-separated to match any)
/// * `aggregation_method` - Filter by aggregation method (comma-separated to match any)
/// * `event_name` - Filter by event name (comma-separated to match any)
/// * `limit` - Number of items to return per page
/// * `offset` - Number of items to skip
/// * `sort` - Sort field and direction in format field:order
/// * `tag_ids` - Filter by tag IDs (comma-separated to match any)
/// * `options` - Additional request options such as headers, timeout, etc.
///
/// # Returns
///
/// JSON response from the API
///
/// # Examples
///
/// ```no_run
/// use alguna::prelude::*;
///
/// #[tokio::main]
/// async fn main() {
/// let config = ClientConfig {
/// api_key: Some("<token>".to_string()),
/// ..Default::default()
/// };
/// let client = Alguna::new(config).expect("Failed to build client");
/// client
/// .metrics
/// .list(
/// &MetricsListQueryRequest {
/// limit: Some(20),
/// offset: Some(0),
/// sort: Some("name:asc".to_string()),
/// aggregation_field: vec![],
/// aggregation_method: vec![],
/// event_name: vec![],
/// tag_ids: vec![],
/// },
/// None,
/// )
/// .await;
/// }
/// ```
pub async fn list(
&self,
request: &MetricsListQueryRequest,
options: Option<RequestOptions>,
) -> Result<MetricListResponse, ApiError> {
self.http_client
.execute_request(
Method::GET,
"metrics",
None,
QueryBuilder::new()
.string("aggregation_field", {
let joined = request
.aggregation_field
.iter()
.flatten()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(",");
if joined.is_empty() {
None
} else {
Some(joined)
}
})
.string("aggregation_method", {
let joined = request
.aggregation_method
.iter()
.flatten()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(",");
if joined.is_empty() {
None
} else {
Some(joined)
}
})
.string("event_name", {
let joined = request
.event_name
.iter()
.flatten()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(",");
if joined.is_empty() {
None
} else {
Some(joined)
}
})
.int("limit", request.limit.clone())
.int("offset", request.offset.clone())
.string("sort", request.sort.clone())
.string("tag_ids", {
let joined = request
.tag_ids
.iter()
.flatten()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(",");
if joined.is_empty() {
None
} else {
Some(joined)
}
})
.build(),
options,
)
.await
}
pub async fn list_paginated(
&self,
request: &MetricsListQueryRequest,
options: Option<RequestOptions>,
) -> Result<AsyncPaginator<MetricResponse>, ApiError> {
let http_client = std::sync::Arc::new(self.http_client.clone());
let base_query_params = QueryBuilder::new()
.string("aggregation_field", {
let joined = request
.aggregation_field
.iter()
.flatten()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(",");
if joined.is_empty() {
None
} else {
Some(joined)
}
})
.string("aggregation_method", {
let joined = request
.aggregation_method
.iter()
.flatten()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(",");
if joined.is_empty() {
None
} else {
Some(joined)
}
})
.string("event_name", {
let joined = request
.event_name
.iter()
.flatten()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(",");
if joined.is_empty() {
None
} else {
Some(joined)
}
})
.int("limit", request.limit.clone())
.string("sort", request.sort.clone())
.string("tag_ids", {
let joined = request
.tag_ids
.iter()
.flatten()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(",");
if joined.is_empty() {
None
} else {
Some(joined)
}
})
.build();
let options_clone = options.clone();
AsyncPaginator::new(
http_client,
move |client, page_token| {
let mut query_params: Vec<(String, String)> =
base_query_params.clone().unwrap_or_default();
// Use page_token as offset/page number (start from 0 if None)
let current_page = page_token.unwrap_or_else(|| "0".to_string());
query_params.push(("offset".to_string(), current_page.clone()));
let page_size: Option<i64> = query_params
.iter()
.find(|(name, _)| name == "limit")
.and_then(|(_, value)| value.parse::<i64>().ok());
let options_for_request = options_clone.clone();
// Clone captured variables to move into the async block
Box::pin(async move {
let raw_response = client
.execute_request_raw::<serde_json::Value>(
Method::GET,
"metrics",
None,
Some(query_params),
options_for_request,
)
.await?;
let response = raw_response.body;
// Extract pagination info from response
// Generic field extraction for offset pagination
let items: Vec<serde_json::Value> = response
.get("data")
.and_then(|v| v.as_array())
.map(|arr| arr.clone())
.unwrap_or_default();
let has_next_page = match page_size {
Some(size) => items.len() as i64 >= size.min(100),
None => !items.is_empty(),
};
let next_cursor: Option<String> = if has_next_page {
let current_offset: i64 = current_page.parse().unwrap_or(0);
Some((current_offset + items.len() as i64).to_string())
} else {
None
};
let items = items
.into_iter()
.map(serde_json::from_value::<MetricResponse>)
.collect::<Result<Vec<_>, _>>()
.map_err(ApiError::Serialization)?;
Ok(PaginationResult {
items,
next_cursor,
has_next_page,
response: Some(response),
status_code: raw_response.status_code,
headers: raw_response.headers,
})
})
},
request.offset.map(|offset| offset.to_string()),
)
}
/// Defines a new billable metric. A metric specifies the event name, optional filter groups, and aggregation logic that turns raw ingested events into a quantity the billing engine can price against.
///
/// # Arguments
///
/// * `options` - Additional request options such as headers, timeout, etc.
///
/// # Returns
///
/// JSON response from the API
///
/// # Examples
///
/// ```no_run
/// use alguna::prelude::*;
///
/// #[tokio::main]
/// async fn main() {
/// let config = ClientConfig {
/// api_key: Some("<token>".to_string()),
/// ..Default::default()
/// };
/// let client = Alguna::new(config).expect("Failed to build client");
/// client
/// .metrics
/// .create(
/// &CreateMetricRequest {
/// aggregation: AggregationRequest {
/// field: None,
/// method: AggregationMethod::Count,
/// },
/// event_name: "api_call".to_string(),
/// name: "API Calls".to_string(),
/// description: None,
/// filter_groups: None,
/// tag_ids: None,
/// },
/// None,
/// )
/// .await;
/// }
/// ```
pub async fn create(
&self,
request: &CreateMetricRequest,
options: Option<RequestOptions>,
) -> Result<MetricResponse, ApiError> {
self.http_client
.execute_request(
Method::POST,
"metrics",
Some(serde_json::to_value(request).map_err(ApiError::Serialization)?),
None,
options,
)
.await
}
/// Fetches a single billable metric by ID, including its filter groups and aggregation logic.
///
/// # Arguments
///
/// * `id` - Unique identifier for the metric
/// * `options` - Additional request options such as headers, timeout, etc.
///
/// # Returns
///
/// JSON response from the API
///
/// # Examples
///
/// ```no_run
/// use alguna::prelude::*;
///
/// #[tokio::main]
/// async fn main() {
/// let config = ClientConfig {
/// api_key: Some("<token>".to_string()),
/// ..Default::default()
/// };
/// let client = Alguna::new(config).expect("Failed to build client");
/// client.metrics.get(&"id".to_string(), None).await;
/// }
/// ```
pub async fn get(
&self,
id: &str,
options: Option<RequestOptions>,
) -> Result<MetricResponse, ApiError> {
self.http_client
.execute_request(Method::GET, &format!("metrics/{}", id), None, None, options)
.await
}
}