0.3.22

three-em · Mar 27, 2023 · ebf412b · ebf412b
1 parent d75e2e6
commit ebf412b
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Showing 11 changed files with 104 additions and 9 deletions.
diff --git a/crates/executor/lib.rs b/crates/executor/lib.rs
@@ -36,7 +36,7 @@ pub async fn simulate_contract(
   maybe_cache: Option<bool>,
   maybe_bundled_contract: Option<bool>,
   maybe_settings: Option<HashMap<String, deno_core::serde_json::Value>>,
-  maybe_exm_context: Option<deno_core::serde_json::Value>,
+  maybe_exm_context_str: Option<String>,
   maybe_contract_source: Option<ManualLoadedContract>,
 ) -> Result<ExecuteResult, AnyError> {
   let shared_id = contract_id.clone();
@@ -80,6 +80,14 @@ pub async fn simulate_contract(
   );
 
   if loaded_contract.is_ok() {
+    let maybe_exm_context = {
+      if let Some(context_str) = maybe_exm_context_str {
+        Some(deno_core::serde_json::from_str(&context_str[..]).unwrap())
+      } else {
+        None
+      }
+    };
+
     let execute = raw_execute_contract(
       contract_id,
       loaded_contract.unwrap(),

diff --git a/js/napi/index.d.ts b/js/napi/index.d.ts
@@ -52,7 +52,7 @@ export interface SimulateExecutionContext {
   maybeCache?: boolean | undefined | null
   maybeBundledContract?: boolean | undefined | null
   maybeSettings?: Record<string, any> | undefined | null
-  maybeExmContext?: any | undefined | null
+  maybeExmContext?: string | undefined | null
 }
 export function simulateContract(context: SimulateExecutionContext): Promise<ExecuteContractResult>
 export function executeContract(tx: string, maybeHeight?: number | undefined | null, maybeConfig?: ExecuteConfig | undefined | null): Promise<ExecuteContractResult>
diff --git a/js/napi/napi.test.js b/js/napi/napi.test.js
@@ -180,4 +180,42 @@ export async function handle(state, action) {
     });
    expect(simulate.errors["ABCD"]).toContain("Ups")
   });
+
+  test("Deterministic fetch lazy evaluation", async () => {
+    const buffer = new TextEncoder().encode("export async function handle(state, action) {\n" +
+        "    const ethTxId = action.input.id;\n" +
+        "    const fetchTx = await EXM.deterministicFetch(`https://api.blockcypher.com/v1/eth/main/txs/${ethTxId}`);\n" +
+        "EXM.print(fetchTx);" +
+        "    const txJson = fetchTx.asJSON();\n" +
+        "    state[ethTxId] = txJson.fees;\n" +
+        "    return {\n" +
+        "        state,\n" +
+        "        result: txJson\n" +
+        "    }\n" +
+        "}");
+
+    const simulate = await simulateContract({
+      contractId: "",
+      maybeContractSource: {
+        contractType: SimulateContractType.JAVASCRIPT,
+        contractSrc: buffer
+      },
+      interactions: [{
+        id: "ABCD",
+        owner: "2asdaskdsapdk012",
+        quantity: "1000",
+        reward: "203123921",
+        target: "none",
+        tags: [],
+        input: JSON.stringify({"id":"8f39fb4940c084460da00a876a521ef2ba84ad6ea8d2f5628c9f1f8aeb395342"})
+      }],
+      contractInitState: JSON.stringify({}),
+      maybeSettings: {
+        'LAZY_EVALUATION': true
+      },
+      maybeExmContext: `{"requests":{"d1b57dac5f734a8831b808bdd5dfdb9cd0d12a56014190982ce744d99a9a661c":{"type":"basic","url":"https://api.blockcypher.com/v1/eth/main/txs/8f39fb4940c084460da00a876a521ef2ba84ad6ea8d2f5628c9f1f8aeb395342","statusText":"OK","status":127,"redirected":false,"ok":true,"headers":{"x-ratelimit-remaining":"99","access-control-allow-methods":"GET, POST, PUT, DELETE","server":"cloudflare","cf-cache-status":"DYNAMIC","access-control-allow-origin":"*","content-type":"application/json","date":"Tue, 21 Mar 2023 18:14:43 GMT","access-control-allow-headers":"Origin, X-Requested-With, Content-Type, Accept","cf-ray":"7ab82d1aed372937-ORD-X"},"vector":[123,10,32,32,34,98,108,111,99,107,95,104,97,115,104,34,58,32,34,98,51,53,50,54,53,57,54,53,102,54,102,49,52,99,53,100,54,57,50,98,50,48,51,48,57,50,50,102,99,101,53,51,48,54,55,102,99,48,101,57,100,56,99,56,52,57,48,99,51,49,100,52,101,99,100,51,101,52,54,53,48,48,99,34,44,10,32,32,34,98,108,111,99,107,95,104,101,105,103,104,116,34,58,32,49,53,54,52,48,52,48,44,10,32,32,34,98,108,111,99,107,95,105,110,100,101,120,34,58,32,48,44,10,32,32,34,104,97,115,104,34,58,32,34,56,102,51,57,102,98,52,57,52,48,99,48,56,52,52,54,48,100,97,48,48,97,56,55,54,97,53,50,49,101,102,50,98,97,56,52,97,100,54,101,97,56,100,50,102,53,54,50,56,99,57,102,49,102,56,97,101,98,51,57,53,51,52,50,34,44,10,32,32,34,97,100,100,114,101,115,115,101,115,34,58,32,91,10,32,32,32,32,34,52,101,57,100,56,98,52,102,49,56,100,57,56,52,102,54,102,48,99,56,56,100,48,55,101,52,98,51,57,50,48,49,101,56,50,53,99,100,49,55,34,44,10,32,32,32,32,34,55,51,56,100,49,52,53,102,97,97,98,98,49,101,48,48,99,102,53,97,48,49,55,53,56,56,97,57,99,48,102,57,57,56,51,49,56,48,49,50,34,10,32,32,93,44,10,32,32,34,116,111,116,97,108,34,58,32,49,48,49,53,51,49,53,51,51,53,57,52,51,55,51,50,54,44,10,32,32,34,102,101,101,115,34,58,32,49,53,57,53,53,56,48,48,48,48,48,48,48,48,48,48,44,10,32,32,34,115,105,122,101,34,58,32,49,49,54,44,10,32,32,34,103,97,115,95,108,105,109,105,116,34,58,32,53,48,48,48,48,48,44,10,32,32,34,103,97,115,95,117,115,101,100,34,58,32,55,57,55,55,57,44,10,32,32,34,103,97,115,95,112,114,105,99,101,34,58,32,50,48,48,48,48,48,48,48,48,48,48,44,10,32,32,34,103,97,115,95,116,105,112,95,99,97,112,34,58,32,50,48,48,48,48,48,48,48,48,48,48,44,10,32,32,34,103,97,115,95,102,101,101,95,99,97,112,34,58,32,50,48,48,48,48,48,48,48,48,48,48,44,10,32,32,34,99,111,110,102,105,114,109,101,100,34,58,32,34,50,48,49,54,45,48,53,45,50,50,84,49,50,58,52,51,58,48,48,90,34,44,10,32,32,34,114,101,99,101,105,118,101,100,34,58,32,34,50,48,49,54,45,48,53,45,50,50,84,49,50,58,52,51,58,48,48,90,34,44,10,32,32,34,118,101,114,34,58,32,48,44,10,32,32,34,100,111,117,98,108,101,95,115,112,101,110,100,34,58,32,102,97,108,115,101,44,10,32,32,34,118,105,110,95,115,122,34,58,32,49,44,10,32,32,34,118,111,117,116,95,115,122,34,58,32,49,44,10,32,32,34,105,110,116,101,114,110,97,108,95,116,120,105,100,115,34,58,32,91,10,32,32,32,32,34,100,100,49,48,55,99,56,52,56,56,56,54,55,102,100,53,51,99,48,97,97,51,98,102,49,100,56,97,52,55,56,97,48,55,55,101,99,54,55,97,102,55,53,56,52,50,100,50,52,102,49,97,54,52,101,98,52,52,101,52,100,57,48,50,34,44,10,32,32,32,32,34,57,97,57,56,54,55,56,100,50,48,57,57,49,48,102,55,48,98,100,101,100,54,50,52,102,50,99,53,99,49,56,101,100,49,55,100,52,49,55,55,53,50,48,55,50,100,52,49,99,53,100,54,49,98,52,50,99,50,55,55,51,52,56,99,34,44,10,32,32,32,32,34,97,100,57,53,57,57,54,49,102,52,54,54,54,51,102,55,56,53,101,49,101,48,97,48,98,50,54,53,54,57,54,48,98,53,100,50,55,48,54,49,48,57,55,99,53,48,57,50,99,52,101,54,56,57,54,52,98,102,97,102,48,48,52,49,34,44,10,32,32,32,32,34,53,97,50,51,100,55,52,97,52,56,52,101,99,53,56,98,50,49,49,50,54,52,56,56,56,56,52,54,98,101,54,100,55,52,50,56,99,51,51,98,101,57,51,50,50,51,51,57,54,101,102,102,51,54,50,54,101,48,51,54,97,55,102,52,34,44,10,32,32,32,32,34,55,51,57,48,54,98,50,102,49,97,49,100,55,102,100,49,55,99,55,55,54,56,52,101,53,101,56,49,49,97,101,56,55,49,48,101,52,97,48,51,50,53,48,49,48,57,48,100,97,50,54,52,55,49,50,100,98,55,97,52,56,101,55,97,34,44,10,32,32,32,32,34,53,51,99,101,56,56,101,49,99,102,57,56,98,51,55,102,98,54,52,99,49,54,49,50,49,98,52,54,52,49,100,100,101,54,53,50,57,48,56,51,56,99,101,48,98,100,101,54,99,98,49,99,51,49,57,100,102,51,101,102,56,102,102,57,34,44,10,32,32,32,32,34,50,57,98,99,52,101,55,102,97,50,100,98,50,56,98,48,97,50,101,102,57,101,55,97,53,101,48,55,51,99,99,55,53,51,50,101,54,48,57,102,55,53,50,98,50,101,98,48,98,53,55,51,49,98,48,99,54,98,57,50,54,97,50,99,34,44,10,32,32,32,32,34,52,97,57,97,102,99,53,97,54,56,48,57,49,55,57,53,53,101,55,56,49,98,56,57,48,54,56,56,49,52,51,102,53,54,98,97,100,99,55,54,55,56,53,97,102,57,56,55,53,51,100,53,50,54,55,50,55,48,100,55,100,56,48,57,34,10,32,32,93,44,10,32,32,34,99,111,110,102,105,114,109,97,116,105,111,110,115,34,58,32,49,53,51,49,51,54,56,48,44,10,32,32,34,99,111,110,102,105,100,101,110,99,101,34,58,32,49,44,10,32,32,34,105,110,112,117,116,115,34,58,32,91,10,32,32,32,32,123,10,32,32,32,32,32,32,34,115,101,113,117,101,110,99,101,34,58,32,50,55,51,44,10,32,32,32,32,32,32,34,97,100,100,114,101,115,115,101,115,34,58,32,91,10,32,32,32,32,32,32,32,32,34,55,51,56,100,49,52,53,102,97,97,98,98,49,101,48,48,99,102,53,97,48,49,55,53,56,56,97,57,99,48,102,57,57,56,51,49,56,48,49,50,34,10,32,32,32,32,32,32,93,10,32,32,32,32,125,10,32,32,93,44,10,32,32,34,111,117,116,112,117,116,115,34,58,32,91,10,32,32,32,32,123,10,32,32,32,32,32,32,34,118,97,108,117,101,34,58,32,49,48,49,53,51,49,53,51,51,53,57,52,51,55,51,50,54,44,10,32,32,32,32,32,32,34,115,99,114,105,112,116,34,58,32,34,52,101,55,49,100,57,50,100,34,44,10,32,32,32,32,32,32,34,97,100,100,114,101,115,115,101,115,34,58,32,91,10,32,32,32,32,32,32,32,32,34,52,101,57,100,56,98,52,102,49,56,100,57,56,52,102,54,102,48,99,56,56,100,48,55,101,52,98,51,57,50,48,49,101,56,50,53,99,100,49,55,34,10,32,32,32,32,32,32,93,10,32,32,32,32,125,10,32,32,93,10,125]}}}`
+    });
+    expect(simulate.state).toEqual({"8f39fb4940c084460da00a876a521ef2ba84ad6ea8d2f5628c9f1f8aeb395342":1595580000000000});
+  });
+
 })
diff --git a/js/napi/npm/darwin-arm64/package.json b/js/napi/npm/darwin-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@three-em/node-darwin-arm64",
-  "version": "0.3.21",
+  "version": "0.3.22",
   "os": [
     "darwin"
   ],

diff --git a/js/napi/npm/darwin-x64/package.json b/js/napi/npm/darwin-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@three-em/node-darwin-x64",
-  "version": "0.3.21",
+  "version": "0.3.22",
   "os": [
     "darwin"
   ],

diff --git a/js/napi/npm/linux-x64-gnu/package.json b/js/napi/npm/linux-x64-gnu/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@three-em/node-linux-x64-gnu",
-  "version": "0.3.21",
+  "version": "0.3.22",
   "os": [
     "linux"
   ],

diff --git a/js/napi/npm/win32-x64-msvc/package.json b/js/napi/npm/win32-x64-msvc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@three-em/node-win32-x64-msvc",
-  "version": "0.3.21",
+  "version": "0.3.22",
   "os": [
     "win32"
   ],

diff --git a/js/napi/package.json b/js/napi/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@three-em/node",
-  "version": "0.3.21",
+  "version": "0.3.22",
   "author": "Divy Srivastava <[email protected]>",
   "license": "MIT",
   "napi": {

diff --git a/js/napi/src/lib.rs b/js/napi/src/lib.rs
@@ -84,7 +84,7 @@ pub struct SimulateExecutionContext {
   pub maybe_cache: Option<bool>,
   pub maybe_bundled_contract: Option<bool>,
   pub maybe_settings: Option<HashMap<String, serde_json::Value>>,
-  pub maybe_exm_context: Option<serde_json::Value>,
+  pub maybe_exm_context: Option<String>,
 }
 
 // Convert the ValidityTable from an IndexMap to HashMap
@@ -315,6 +315,7 @@ mod tests {
     ExecuteConfig, SimulateContractType, SimulateExecutionContext,
     SimulateInput,
   };
+  use std::collections::HashMap;
   use three_em_arweave::arweave::get_cache;
 
   // #[tokio::test(flavor = "multi_thread", worker_threads = 1)]
@@ -557,7 +558,7 @@ mod tests {
   #[tokio::test]
   pub async fn simulate_contract_ark() {
     let contract_source_bytes =
-        include_bytes!("../../../testdata/contracts/ark.js");
+      include_bytes!("../../../testdata/contracts/ark.js");
     let contract_source_vec = contract_source_bytes.to_vec();
     let execution_context: SimulateExecutionContext =
         SimulateExecutionContext {
@@ -595,4 +596,41 @@ mod tests {
     let contract_result = contract.state;
     let str_state = contract_result.to_string();
   }
+
+  #[tokio::test]
+  pub async fn simulate_deterministic_fetch_lazy() {
+    let mut sets: HashMap<String, serde_json::Value> = HashMap::new();
+    sets.insert("LAZY_EVALUATION".to_string(), serde_json::Value::Bool(true));
+
+    let contract_source_bytes =
+      include_bytes!("../../../testdata/contracts/deterministic-fetch.js");
+    let contract_source_vec = contract_source_bytes.to_vec();
+    let execution_context: SimulateExecutionContext =
+        SimulateExecutionContext {
+          contract_id: String::new(),
+          interactions: vec![SimulateInput {
+            id: String::from("abcd"),
+            owner: String::from("210392sdaspd-asdm-asd_sa0d1293-lc"),
+            quantity: String::from("12301"),
+            reward: String::from("12931293"),
+            target: None,
+            tags: vec![],
+            block: None,
+            input: serde_json::json!({"id":"8f39fb4940c084460da00a876a521ef2ba84ad6ea8d2f5628c9f1f8aeb395342"}).to_string(),
+          }],
+          contract_init_state: Some(String::from(include_str!("../../../testdata/contracts/deterministic-fetch.json"))),
+          maybe_config: None,
+          maybe_cache: Some(false),
+          maybe_bundled_contract: None,
+          maybe_settings: Some(sets),
+          maybe_exm_context: Some((r#"{"requests":{"d1b57dac5f734a8831b808bdd5dfdb9cd0d12a56014190982ce744d99a9a661c":{"type":"basic","url":"https://api.blockcypher.com/v1/eth/main/txs/8f39fb4940c084460da00a876a521ef2ba84ad6ea8d2f5628c9f1f8aeb395342","statusText":"OK","status":127,"redirected":false,"ok":true,"headers":{"x-ratelimit-remaining":"99","access-control-allow-methods":"GET, POST, PUT, DELETE","server":"cloudflare","cf-cache-status":"DYNAMIC","access-control-allow-origin":"*","content-type":"application/json","date":"Tue, 21 Mar 2023 18:14:43 GMT","access-control-allow-headers":"Origin, X-Requested-With, Content-Type, Accept","cf-ray":"7ab82d1aed372937-ORD-X"},"vector":[123,10,32,32,34,98,108,111,99,107,95,104,97,115,104,34,58,32,34,98,51,53,50,54,53,57,54,53,102,54,102,49,52,99,53,100,54,57,50,98,50,48,51,48,57,50,50,102,99,101,53,51,48,54,55,102,99,48,101,57,100,56,99,56,52,57,48,99,51,49,100,52,101,99,100,51,101,52,54,53,48,48,99,34,44,10,32,32,34,98,108,111,99,107,95,104,101,105,103,104,116,34,58,32,49,53,54,52,48,52,48,44,10,32,32,34,98,108,111,99,107,95,105,110,100,101,120,34,58,32,48,44,10,32,32,34,104,97,115,104,34,58,32,34,56,102,51,57,102,98,52,57,52,48,99,48,56,52,52,54,48,100,97,48,48,97,56,55,54,97,53,50,49,101,102,50,98,97,56,52,97,100,54,101,97,56,100,50,102,53,54,50,56,99,57,102,49,102,56,97,101,98,51,57,53,51,52,50,34,44,10,32,32,34,97,100,100,114,101,115,115,101,115,34,58,32,91,10,32,32,32,32,34,52,101,57,100,56,98,52,102,49,56,100,57,56,52,102,54,102,48,99,56,56,100,48,55,101,52,98,51,57,50,48,49,101,56,50,53,99,100,49,55,34,44,10,32,32,32,32,34,55,51,56,100,49,52,53,102,97,97,98,98,49,101,48,48,99,102,53,97,48,49,55,53,56,56,97,57,99,48,102,57,57,56,51,49,56,48,49,50,34,10,32,32,93,44,10,32,32,34,116,111,116,97,108,34,58,32,49,48,49,53,51,49,53,51,51,53,57,52,51,55,51,50,54,44,10,32,32,34,102,101,101,115,34,58,32,49,53,57,53,53,56,48,48,48,48,48,48,48,48,48,48,44,10,32,32,34,115,105,122,101,34,58,32,49,49,54,44,10,32,32,34,103,97,115,95,108,105,109,105,116,34,58,32,53,48,48,48,48,48,44,10,32,32,34,103,97,115,95,117,115,101,100,34,58,32,55,57,55,55,57,44,10,32,32,34,103,97,115,95,112,114,105,99,101,34,58,32,50,48,48,48,48,48,48,48,48,48,48,44,10,32,32,34,103,97,115,95,116,105,112,95,99,97,112,34,58,32,50,48,48,48,48,48,48,48,48,48,48,44,10,32,32,34,103,97,115,95,102,101,101,95,99,97,112,34,58,32,50,48,48,48,48,48,48,48,48,48,48,44,10,32,32,34,99,111,110,102,105,114,109,101,100,34,58,32,34,50,48,49,54,45,48,53,45,50,50,84,49,50,58,52,51,58,48,48,90,34,44,10,32,32,34,114,101,99,101,105,118,101,100,34,58,32,34,50,48,49,54,45,48,53,45,50,50,84,49,50,58,52,51,58,48,48,90,34,44,10,32,32,34,118,101,114,34,58,32,48,44,10,32,32,34,100,111,117,98,108,101,95,115,112,101,110,100,34,58,32,102,97,108,115,101,44,10,32,32,34,118,105,110,95,115,122,34,58,32,49,44,10,32,32,34,118,111,117,116,95,115,122,34,58,32,49,44,10,32,32,34,105,110,116,101,114,110,97,108,95,116,120,105,100,115,34,58,32,91,10,32,32,32,32,34,100,100,49,48,55,99,56,52,56,56,56,54,55,102,100,53,51,99,48,97,97,51,98,102,49,100,56,97,52,55,56,97,48,55,55,101,99,54,55,97,102,55,53,56,52,50,100,50,52,102,49,97,54,52,101,98,52,52,101,52,100,57,48,50,34,44,10,32,32,32,32,34,57,97,57,56,54,55,56,100,50,48,57,57,49,48,102,55,48,98,100,101,100,54,50,52,102,50,99,53,99,49,56,101,100,49,55,100,52,49,55,55,53,50,48,55,50,100,52,49,99,53,100,54,49,98,52,50,99,50,55,55,51,52,56,99,34,44,10,32,32,32,32,34,97,100,57,53,57,57,54,49,102,52,54,54,54,51,102,55,56,53,101,49,101,48,97,48,98,50,54,53,54,57,54,48,98,53,100,50,55,48,54,49,48,57,55,99,53,48,57,50,99,52,101,54,56,57,54,52,98,102,97,102,48,48,52,49,34,44,10,32,32,32,32,34,53,97,50,51,100,55,52,97,52,56,52,101,99,53,56,98,50,49,49,50,54,52,56,56,56,56,52,54,98,101,54,100,55,52,50,56,99,51,51,98,101,57,51,50,50,51,51,57,54,101,102,102,51,54,50,54,101,48,51,54,97,55,102,52,34,44,10,32,32,32,32,34,55,51,57,48,54,98,50,102,49,97,49,100,55,102,100,49,55,99,55,55,54,56,52,101,53,101,56,49,49,97,101,56,55,49,48,101,52,97,48,51,50,53,48,49,48,57,48,100,97,50,54,52,55,49,50,100,98,55,97,52,56,101,55,97,34,44,10,32,32,32,32,34,53,51,99,101,56,56,101,49,99,102,57,56,98,51,55,102,98,54,52,99,49,54,49,50,49,98,52,54,52,49,100,100,101,54,53,50,57,48,56,51,56,99,101,48,98,100,101,54,99,98,49,99,51,49,57,100,102,51,101,102,56,102,102,57,34,44,10,32,32,32,32,34,50,57,98,99,52,101,55,102,97,50,100,98,50,56,98,48,97,50,101,102,57,101,55,97,53,101,48,55,51,99,99,55,53,51,50,101,54,48,57,102,55,53,50,98,50,101,98,48,98,53,55,51,49,98,48,99,54,98,57,50,54,97,50,99,34,44,10,32,32,32,32,34,52,97,57,97,102,99,53,97,54,56,48,57,49,55,57,53,53,101,55,56,49,98,56,57,48,54,56,56,49,52,51,102,53,54,98,97,100,99,55,54,55,56,53,97,102,57,56,55,53,51,100,53,50,54,55,50,55,48,100,55,100,56,48,57,34,10,32,32,93,44,10,32,32,34,99,111,110,102,105,114,109,97,116,105,111,110,115,34,58,32,49,53,51,49,51,54,56,48,44,10,32,32,34,99,111,110,102,105,100,101,110,99,101,34,58,32,49,44,10,32,32,34,105,110,112,117,116,115,34,58,32,91,10,32,32,32,32,123,10,32,32,32,32,32,32,34,115,101,113,117,101,110,99,101,34,58,32,50,55,51,44,10,32,32,32,32,32,32,34,97,100,100,114,101,115,115,101,115,34,58,32,91,10,32,32,32,32,32,32,32,32,34,55,51,56,100,49,52,53,102,97,97,98,98,49,101,48,48,99,102,53,97,48,49,55,53,56,56,97,57,99,48,102,57,57,56,51,49,56,48,49,50,34,10,32,32,32,32,32,32,93,10,32,32,32,32,125,10,32,32,93,44,10,32,32,34,111,117,116,112,117,116,115,34,58,32,91,10,32,32,32,32,123,10,32,32,32,32,32,32,34,118,97,108,117,101,34,58,32,49,48,49,53,51,49,53,51,51,53,57,52,51,55,51,50,54,44,10,32,32,32,32,32,32,34,115,99,114,105,112,116,34,58,32,34,52,101,55,49,100,57,50,100,34,44,10,32,32,32,32,32,32,34,97,100,100,114,101,115,115,101,115,34,58,32,91,10,32,32,32,32,32,32,32,32,34,52,101,57,100,56,98,52,102,49,56,100,57,56,52,102,54,102,48,99,56,56,100,48,55,101,52,98,51,57,50,48,49,101,56,50,53,99,100,49,55,34,10,32,32,32,32,32,32,93,10,32,32,32,32,125,10,32,32,93,10,125]}}}"#).to_string()),
+          maybe_contract_source: Some(ContractSource {
+            contract_src: contract_source_vec.into(),
+            contract_type: SimulateContractType::JAVASCRIPT,
+          }),
+        };
+
+    let contract = simulate_contract(execution_context).await.unwrap();
+    println!("{}", contract.state);
+  }
 }
diff --git a/testdata/contracts/deterministic-fetch.js b/testdata/contracts/deterministic-fetch.js
@@ -0,0 +1,10 @@
+export async function handle(state, action) {
+    const ethTxId = action.input.id;
+    const fetchTx = await EXM.deterministicFetch(`https://api.blockcypher.com/v1/eth/main/txs/${ethTxId}`);
+    const txJson = fetchTx.asJSON();
+    state[ethTxId] = txJson.fees;
+    return {
+        state,
+        result: txJson
+    }
+}
diff --git a/testdata/contracts/deterministic-fetch.json b/testdata/contracts/deterministic-fetch.json
@@ -0,0 +1 @@
+{}