wip: pull request view & md rendering

src/api.rs

@@ -1,3 +1,4 @@
+use reqwest::Method;
 use serde::{Deserialize, Serialize};
 
 use crate::query;
@@ -36,8 +37,9 @@ pub(crate) enum Error {
     #[cfg(debug_assertions)]
     MissingMockFixture(String),
     Github(GithubError),
-    MalformedResponse(serde_json::Error),
+    MalformedResponse(String),
     HttpError(reqwest::Error),
+    GraphQLError(Vec<graphql_client::Error>),
 }
 
 #[derive(Debug, Deserialize)]
@@ -66,6 +68,16 @@ impl QueryContext {
             .header("User-Agent", "kennethnym")
             .bearer_auth(&auth.access_token))
     }
+
+    fn github_graphql_request<V>(
+        &self,
+        request: &graphql_client::QueryBody<V>,
+    ) -> Result<reqwest::RequestBuilder, Error>
+    where
+        V: serde::Serialize,
+    {
+        Ok(self.github_request(Method::POST, "/graphql")?.json(request))
+    }
 }
 
 #[cfg(debug_assertions)]
@@ -88,7 +100,7 @@ impl From<reqwest::Error> for Error {
 
 impl From<serde_json::Error> for Error {
     fn from(value: serde_json::Error) -> Self {
-        Self::MalformedResponse(value)
+        Self::MalformedResponse(value.to_string())
     }
 }
 
@@ -118,10 +130,13 @@ where
 
 async fn parse_graphql_response<T>(
     res: reqwest::Response,
-) -> Result<graphql_client::Response<T>, Error>
+) -> Result<(graphql_client::Response<T>, T), Error>
 where
     T: serde::de::DeserializeOwned,
 {
-    let data: graphql_client::Response<T> = res.json().await?;
-    Ok(data)
+    let mut body: graphql_client::Response<T> = res.json().await?;
+    match body.data.take() {
+        None => Err(Error::GraphQLError(body.errors.unwrap_or_default())),
+        Some(data) => Ok((body, data)),
+    }
 }