feat: added compression at session_log side

Author: antoniomuso

crates/Cargo.lock

@@ -56,6 +56,8 @@ struct PrivateTransactionResult {
   encrypted_changes: String,
   #[serde(skip_serializing_if = "Option::is_none")]
   meta: Option<String>,
+  #[serde(skip_serializing_if = "Option::is_none")]
+  encoding: Option<String>,
 }
 
 #[napi]
@@ -132,6 +134,7 @@ impl SessionLog {
         signature: signature.0,
         encrypted_changes: private_tx.encrypted_changes.value,
         meta: private_tx.meta.map(|meta| meta.value),
+        encoding: private_tx.encoding.map(|encoding| encoding.into()),
       },
       _ => {
         return napi::Result::Err(napi::Error::new(

crates/cojson-core-napi/src/lib.rs

@@ -58,6 +58,8 @@ struct PrivateTransactionResult {
     encrypted_changes: String,
     #[serde(skip_serializing_if = "Option::is_none")]
     meta: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    encoding: Option<String>
 }
 
 #[wasm_bindgen]
@@ -135,6 +137,7 @@ impl SessionLog {
                 signature: signature.0,
                 encrypted_changes: private_tx.encrypted_changes.value,
                 meta: private_tx.meta.map(|meta| meta.value),
+                encoding: private_tx.encoding.map(|encoding| encoding.into()),
             },
             _ => {
                 return Err(CojsonCoreWasmError::Js(JsValue::from_str(

crates/cojson-core-wasm/public/cojson_core_wasm.wasm

@@ -17,6 +17,7 @@ salsa20 = "0.10.2"
 rand = "0.8"
 x25519-dalek = { version = "2.0", features = ["getrandom", "static_secrets"] }
 lru = "0.16.1"
+lz4_flex = { version = "0.11" }
 
 [dev-dependencies]
 rand_core = { version = "0.6", features = ["getrandom"] }

crates/cojson-core-wasm/public/cojson_core_wasm.wasm.js

@@ -28,4 +28,7 @@ pub enum CoJsonCoreError {
 
     #[error("Invalid base58")] 
     InvalidBase58(#[from] bs58::decode::Error),
+
+    #[error("Invalid encoding")]
+    InvalidEncoding,
 }