feat: fetch effect (#1605)

* feat: fetch effect

* fix: Make not available in sandbox

* chore: Update to use text(), and to use headers

* chore: use the postman echo for testing

* chore: add json

* chore: Testing the json

* chore: Make the json lazy

backend/Cargo.lock

@@ -1897,6 +1897,7 @@ dependencies = [
  "dprint-swc-ext",
  "helpers",
  "models",
+ "reqwest",
  "serde",
  "serde_json",
  "swc_atoms",