add example

examples/json_abi.rs

@@ -0,0 +1,59 @@
+use cainome::rs::abigen;
+use starknet::{
+    macros::felt,
+    providers::{jsonrpc::HttpTransport, JsonRpcClient},
+};
+use url::Url;
+
+abigen!(MyContractFile, "./contracts/abi/simple_types.abi.json",);
+
+abigen!(MyContractEmbed, [
+    {
+    "type": "function",
+    "name": "get_bool",
+    "inputs": [],
+    "outputs": [
+      {
+        "type": "core::bool"
+      }
+    ],
+    "state_mutability": "view"
+  },
+  {
+    "type": "function",
+    "name": "set_bool",
+    "inputs": [
+      {
+        "name": "v",
+        "type": "core::bool"
+      }
+    ],
+    "outputs": [],
+    "state_mutability": "external"
+  },
+  {
+    "type": "function",
+    "name": "get_felt",
+    "inputs": [],
+    "outputs": [
+      {
+        "type": "core::felt252"
+      }
+    ],
+    "state_mutability": "view"
+  }
+]);
+
+#[tokio::main]
+async fn main() {
+    let url = Url::parse("http://localhost:5050").unwrap();
+    let provider = JsonRpcClient::new(HttpTransport::new(url));
+
+    let contract = MyContractEmbedReader::new(felt!("0x1337"), &provider);
+    let _ = contract.get_bool().call().await.unwrap();
+    let _ = contract.get_felt().call().await.unwrap();
+
+    let contract = MyContractFileReader::new(felt!("0x1337"), &provider);
+    let _ = contract.get_bool().call().await.unwrap();
+    let _ = contract.get_felt().call().await.unwrap();
+}