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Diane Huxley
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
|
|
||
| use std::{collections::HashMap, sync::Arc}; | ||
| use async_trait::async_trait; | ||
| use once_cell::sync::OnceCell; | ||
|
|
||
| #[async_trait] | ||
| pub trait HttpClient: Send + Sync { | ||
| async fn get( | ||
| &self, | ||
| url: &str, | ||
| headers: Option<HashMap<String, String>> | ||
| ) -> std::result::Result<HttpResponse, Box<dyn std::error::Error>>; | ||
|
|
||
| async fn post( | ||
| &self, | ||
| url: &str, | ||
| headers: Option<HashMap<String, String>>, | ||
| body: &[u8] | ||
| ) -> std::result::Result<HttpResponse, Box<dyn std::error::Error>>; | ||
|
|
||
| async fn put( | ||
| &self, | ||
| url: &str, | ||
| headers: Option<HashMap<String, String>>, | ||
| body: &[u8] | ||
| ) -> std::result::Result<HttpResponse, Box<dyn std::error::Error>>; | ||
| } | ||
|
|
||
| pub struct HttpResponse { | ||
| pub status_code: u16, | ||
| #[allow(dead_code)] | ||
| pub headers: HashMap<String, String>, | ||
| pub body: Vec<u8>, | ||
| } | ||
|
|
||
| static HTTP_CLIENT: OnceCell<Arc<dyn HttpClient>> = OnceCell::new(); | ||
|
|
||
| #[cfg(feature = "default_http_client")] | ||
| pub fn get_http_client() -> &'static dyn HttpClient { | ||
| HTTP_CLIENT.get_or_init(|| { | ||
| Arc::new(reqwest_http_client::ReqwestHttpClient::new()) | ||
| }).as_ref() | ||
| } | ||
|
|
||
| #[cfg(not(feature = "default_http_client"))] | ||
| pub fn get_http_client() -> &'static dyn HttpClient { | ||
| HTTP_CLIENT.get().expect("HttpClient has not been set. Please call set_http_client().").as_ref() | ||
| } | ||
|
|
||
| #[cfg(feature = "default_http_client")] | ||
| pub fn set_http_client(_: Arc<dyn HttpClient>) { | ||
| panic!("Cannot set a custom HttpClient when the reqwest feature is enabled."); | ||
| } | ||
|
|
||
| #[cfg(not(feature = "default_http_client"))] | ||
| pub fn set_http_client(client: Arc<dyn HttpClient>) { | ||
| HTTP_CLIENT.set(client).unwrap_or_else(|_| panic!("HttpClient has already been set.")); | ||
| } | ||
|
|
||
| #[cfg(feature = "default_http_client")] | ||
| mod reqwest_http_client { | ||
| use super::*; | ||
| use reqwest::Client; | ||
| use std::collections::HashMap; | ||
|
|
||
| pub struct ReqwestHttpClient { | ||
| client: Client, | ||
| } | ||
|
|
||
| impl ReqwestHttpClient { | ||
| pub fn new() -> Self { | ||
| ReqwestHttpClient { | ||
| client: Client::new(), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #[async_trait] | ||
| impl HttpClient for ReqwestHttpClient { | ||
| async fn get( | ||
| &self, | ||
| url: &str, | ||
| headers: Option<HashMap<String, String>>, | ||
| ) -> Result<HttpResponse, Box<dyn std::error::Error>> { | ||
| let mut req = self.client.get(url); | ||
|
|
||
| if let Some(headers) = headers { | ||
| for (key, value) in headers { | ||
| req = req.header(&key, &value); | ||
| } | ||
| } | ||
|
|
||
| let response = req.send().await?; | ||
| let status_code = response.status().as_u16(); | ||
| let headers = response | ||
| .headers() | ||
| .iter() | ||
| .map(|(k, v)| (k.to_string(), v.to_str().unwrap_or("").to_string())) | ||
| .collect(); | ||
|
|
||
| let body = response.bytes().await?.to_vec(); | ||
|
|
||
| Ok(HttpResponse { | ||
| status_code, | ||
| headers, | ||
| body, | ||
| }) | ||
| } | ||
|
|
||
| async fn post( | ||
| &self, | ||
| url: &str, | ||
| headers: Option<HashMap<String, String>>, | ||
| body: &[u8], | ||
| ) -> Result<HttpResponse, Box<dyn std::error::Error>> { | ||
| let mut req = self.client.post(url).body(body.to_vec()); | ||
|
|
||
| if let Some(headers) = headers { | ||
| for (key, value) in headers { | ||
| req = req.header(&key, &value); | ||
| } | ||
| } | ||
|
|
||
| let response = req.send().await?; | ||
| let status_code = response.status().as_u16(); | ||
| let headers = response | ||
| .headers() | ||
| .iter() | ||
| .map(|(k, v)| (k.to_string(), v.to_str().unwrap_or("").to_string())) | ||
| .collect(); | ||
|
|
||
| let body = response.bytes().await?.to_vec(); | ||
|
|
||
| Ok(HttpResponse { | ||
| status_code, | ||
| headers, | ||
| body, | ||
| }) | ||
| } | ||
|
|
||
| async fn put( | ||
| &self, | ||
| url: &str, | ||
| headers: Option<HashMap<String, String>>, | ||
| body: &[u8], | ||
| ) -> Result<HttpResponse, Box<dyn std::error::Error>> { | ||
| let mut req = self.client.put(url).body(body.to_vec()); | ||
|
|
||
| if let Some(headers) = headers { | ||
| for (key, value) in headers { | ||
| req = req.header(&key, &value); | ||
| } | ||
| } | ||
|
|
||
| let response = req.send().await?; | ||
| let status_code = response.status().as_u16(); | ||
| let headers = response | ||
| .headers() | ||
| .iter() | ||
| .map(|(k, v)| (k.to_string(), v.to_str().unwrap_or("").to_string())) | ||
| .collect(); | ||
|
|
||
| let body = response.bytes().await?.to_vec(); | ||
|
|
||
| Ok(HttpResponse { | ||
| status_code, | ||
| headers, | ||
| body, | ||
| }) | ||
| } | ||
| } | ||
| } |
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