Merge pull request #92 from availproject/fix/pg-serialization

fix: Justification serialization issue on Postgres insertion

Author: moraesjeremias

docker/docker-compose.yaml

@@ -0,0 +1,17 @@
+version: '3'
+
+services:
+  db:
+    image: postgres:latest
+    container_name: bridge-proof_db
+    environment:
+      POSTGRES_USER: myuser
+      POSTGRES_PASSWORD: mypassword
+      POSTGRES_DB: vectorx-indexer
+    ports:
+      - "5433:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+volumes:
+  postgres_data:

services/src/postgres.rs

@@ -1,5 +1,5 @@
 use anyhow::Result;
-use serde_json::{from_str, to_string};
+use serde_json::{from_str, to_value};
 use sqlx::{PgPool, Row};
 use tracing::info;
 
@@ -27,7 +27,7 @@ impl PostgresClient {
         avail_chain_id: &str,
         justification: GrandpaJustification,
     ) -> Result<()> {
-        let json_data = to_string(&justification)?;
+        let json_data = to_value(&justification)?;
         let block_nb = justification.commit.target_number;
         let id = format!("{}-{}", avail_chain_id, block_nb).to_lowercase();