This page outlines the behavior of input assets during order creation and provides a visual representation of the process for creating an order using reserve assets. When interacting with the create-tx API, the response includes a tx field. To create an order, it is sufficient to sign the transaction and submit it to the network. The data field within tx contains all necessary instructions for creating an order on the source chain. The simplest scenario occurs when bridging reserve assets from the source chain to the destination chain. In this case, the order creation process on the initiator’s side consists of three distinct steps:
  • Step 1: Call create-tx API with the required parameters.
  • Step 2: After receiving the response, call approve on the ERC-20 contract of the reserve assets. The spender should be set to response.tx.to value, and the approved amount should match the value specified in the transaction, with caveats.
    • Note: This step is required only for ERC-20 assets.
  • Step 3: Sign response.tx and submit the transaction. This action locks the specified amount of reserve assets on the source chain until the order is either claimed by a solver or cancelled by an authorized entity.
Once these steps are completed, the bridging process from the user’s perspective is finished. The next actions involve either monitoring the order’s status or initiating cancellation. Additional details on how solvers fulfill the order on the destination chain are available here.