Sending the transaction to the node

To send the transaction to the node, obtain the rkyv serialized Unproven Transaction which can be obtained by calling execute in ffi.rs.

This will give us a rkyv serialized unproven transaction.

Then we convert the rkyv serialized unproven transaction to var bytes using

const args = JSON.stringify({
   bytes: unprovenTx,
});

const txSerialized = jsonFromBytes(call(wasm, args, wasm.unproven_tx_to_bytes)).serialized;

Now we can send it to the node for proving!

To obtain the proof, send the prove_execute request to the node

// send the prove execute
const proofReq = await request(
      varBytes,
      "prove_execute",
      false,
      undefined,
      "rusk",
      "2"
);
// get the response bytes 
const buffer = await proofReq.arrayBuffer();
const bytes = new Uint8Array(buffer);

// call the prove_tx function 
const args = JSON.stringify({
    unproven_tx: unprovenTx,
    proof: Array.from(proof),
});

const provedTx = jsonFromBytes(call(wasm, args, wasm.prove_tx));

Now you have to preverify the transaction before propogating it to the blockchain

// pre verify the proved tx
const preVerifyReq = await request(
      provedTx,
      "preverify",
      false,
      undefined,
      "rusk",
      "2"
);

// log the status of the request (should be 200)
console.log("preverify request status code: " + preVerifyReq.status);

// propogate the proved tx
const propogateReq = await request(
      tx,
      "propagate_tx",
      false,
      undefined,
      "Chain",
      "2"
);

console.log("propogating chain request status: " + propogateReq.status);