feat: type agnostic seq endpoint

Author: charmful0x

README.md

@@ -82,8 +82,31 @@ export async function handle(state, action) {
 }
 ```
 
+## Lambda Sequencer
+
+
 #### Testnet sequencer endpoint: https://wvm-lambda-0755acbdae90.herokuapp.com/
 
+### Methods
+
+#### Transaction Type 1: deploy contract
+
+```bash
+curl -X POST https://wvm-lambda-0755acbdae90.herokuapp.com/deploy -H "Content-Type: application/json" -d '{"txid":"$CONTRACT_ADDRESS"}'
+```
+
+#### Transaction Type 2: send interaction
+```bash
+curl -X POST https://wvm-lambda-0755acbdae90.herokuapp.com/transactions -H "Content-Type: application/json" -d '{"txid":"$INTERACTION_TXID"}'
+```
+
+#### Type Agnostic Method: handles both types 1 and 2 automatically
+
+
+```bash
+curl -X POST https://wvm-lambda-0755acbdae90.herokuapp.com/tx -H "Content-Type: application/json" -d '{"txid":"$TXID"}'
+```
+
 For more code examples on how to interact with the Lambda sequencer (deploying contracts, sending interactions, reading state), check the code snippets available in [examples](./examples).
 
 ## License

sequencer/server.js

@@ -5,6 +5,7 @@ import cors from "cors";
 import { deployContract } from "./utils/deploy.js";
 import { evaluateTx } from "./utils/tx.js";
 import { psGetState } from "./utils/planetscale.js";
+import { handleTx } from "./utils/auto-tx-handler.js";
 
 const app = express();
 const port = process.env.PORT || 3000;
@@ -71,5 +72,19 @@ app.post("/transactions", async (req, res) => {
   }
 });
 
+// auto tx handler, type agnostic (handles both type 1 and 2)
+app.post("/tx", async (req, res) => {
+  try {
+    const { txid } = req.body;
+
+    const tx = await handleTx(txid);
+
+    res.send(tx);
+  } catch (error) {
+    console.log(error);
+    return {result: false}
+  }
+});
+
 
 app.listen(port, () => console.log("Server started"));

sequencer/utils/auto-tx-handler.js

@@ -0,0 +1,20 @@
+import { evaluateTx } from "./tx.js";
+import { deployContract } from "./deploy.js";
+import { decodeCalldata } from "./web3-utils.js";
+
+export async function handleTx(txid) {
+  try {
+    const tx = await decodeCalldata(txid);
+    const data = tx.data;
+
+    if (data.type == 2) {
+      await evaluateTx(txid);
+      return;
+    } else if (data.type == 1) {
+      await deployContract(txid);
+      return;
+    }
+  } catch (err) {
+    return { result: false };
+  }
+}