chore: avoid mut rng not send issue

src/lib.rs

@@ -8,10 +8,12 @@ pub mod api;
 mod model_definition;
 mod query;
 
-use ceramic_event::{Base64String, Cid, event_builder::*, EventBytes, Jws, MultiBase36String, SignedEvent, Signer, StreamId, StreamIdType};
+use ceramic_event::{
+    event_builder::*, Base64String, Cid, EventBytes, Jws, MultiBase36String, SignedEvent, Signer,
+    StreamId, StreamIdType,
+};
 use serde::Serialize;
 use std::str::FromStr;
-use rand::Fill;
 
 use crate::api::{ModelData, PARENT_STREAM_ID, SEP};
 pub use ceramic_event;
@@ -94,7 +96,8 @@ impl<S: Signer + Sync> CeramicHttpClient<S> {
             .with_additional(SEP.to_string(), parent.into())
             .init()
             .with_data(&model)
-            .build().await?;
+            .build()
+            .await?;
         let commit = SignedEvent::new(commit.into(), &self.signer).await?;
         let controllers: Vec<_> = vec![controller];
         let data = Base64String::from(commit.linked_block.as_ref());
@@ -177,6 +180,16 @@ impl<S: Signer + Sync> CeramicHttpClient<S> {
         })
     }
 
+    fn gen_rand_bytes<const SIZE: usize>() -> [u8; SIZE] {
+        // can't take &mut rng cause of Send even if we drop it
+        let mut rng = rand::thread_rng();
+        let mut arr = [0; SIZE];
+        for x in &mut arr {
+            *x = rand::Rng::gen_range(&mut rng, 0..=255);
+        }
+        arr
+    }
+
     /// Create a serde compatible request for a list instance per account creation of a model
     pub async fn create_list_instance_request<T: Serialize>(
         &self,
@@ -189,9 +202,7 @@ impl<S: Signer + Sync> CeramicHttpClient<S> {
         let model_vec = model_id.to_vec()?;
         let model = Base64String::from(model_vec.as_slice());
         let model_bytes = EventBytes::from(model_vec);
-        let mut rng = rand::thread_rng();
-        let mut unique = [0u8; 12];
-        unique.try_fill(&mut rng)?;
+        let unique = Self::gen_rand_bytes::<12>();
         let unique: EventBytes = unique.to_vec().into();
         let controller = self.signer.id().id.clone();
         let commit = Builder::default()
@@ -201,7 +212,8 @@ impl<S: Signer + Sync> CeramicHttpClient<S> {
             .with_additional("unique".to_string(), unique.into())
             .init()
             .with_data(data)
-            .build().await?;
+            .build()
+            .await?;
         let commit = SignedEvent::new(commit.into(), &self.signer).await?;
         let controllers: Vec<_> = vec![controller];
         let data = Base64String::from(commit.linked_block.as_ref());
@@ -239,7 +251,8 @@ impl<S: Signer + Sync> CeramicHttpClient<S> {
             let model = Base64String::from(model_vec.as_slice());
             let commit = Builder::default()
                 .data(get.stream_id.cid, tip, patch)
-                .build().await?;
+                .build()
+                .await?;
             let commit = SignedEvent::new(commit.into(), &self.signer).await?;
             let controllers: Vec<_> = vec![controller];
             let data = Base64String::from(commit.linked_block.as_ref());