README.md

Snapshot <> Herodotus DP -- Proof of Concept

1. Build

Build the compiled contract class file:

scarb build

You should see that a new build file has been added:

custom_module \
    src \
       lib.cairo
    target \
       dev \
          custom_module_custom_module.compiled_contract_class.json

2. Upload

Upload the compiled contract class file to the program registry:

curl --location 'https://sharp.api.herodotus.cloud/submit-program?apiKey={API_KEY}' \
--form 'programFile=@"custom_module_custom_module.compiled_contract_class.json"'

This request will return a program hash as a response:

0xaae117f9cdfa4fa4d004f84495c942adebf17f24aec8f86e5e6ea29956b47e

To comfirm if the program is registered, you can query the program registry:

curl --location 'http://program-registery.api.herodotus.cloud/get-metadata?program_hash=0xaae117f9cdfa4fa4d004f84495c942adebf17f24aec8f86e5e6ea29956b47e'

3. Request

Now, with this custom module, you can submit a request to the HDP:

Provide the correct program hash from the program registry. Input data should be the input for the pub fn main() function.

Note that values belows are examples and should be replaced with the correct input values.

curl --location 'https://hdp.api.herodotus.cloud/submit-batch-query?apiKey={API_KEY}' \
--header 'Content-Type: application/json' \
--data '{
  "destinationChainId": "ETHEREUM_SEPOLIA",
  "tasks": [
    {
      "type": "Module",
      "programHash": "0xaae117f9cdfa4fa4d004f84495c942adebf17f24aec8f86e5e6ea29956b47e",
      "inputs": [
        {
          "visibility": "public",
          "value": "0x3"
        },
        {
          "visibility": "public",
          "value": "0x5222A4"
        },
        {
          "visibility": "public",
          "value": "0x5222A7"
        },
        {
          "visibility": "public",
          "value": "0x5222C4"
        },
        {
          "visibility": "public",
          "value": "0x13cb6ae34a13a0977f4d7101ebc24b87bb23f0d5"
        }
      ]
    }
  ]
}'