Contracts endpoint

Method: GET

/gateway/contracts?page=<page> - returns the list of all the currently registered contracts.
Result is ordered by [last_interaction_height DESC, count(interaction) DESC]

Parameters:

1. contractType [optional] - filter records by contract type. If not set, all types of contracts are returned.
   1. pst
   2. other
2. sourceType [optional] - filter records by contract source type. If not set, all contracts are returned.
   1. application/wasm
   2. application/javascript
3. page [optional] - page, e.g.: gateway/contracts?page=3. If not set, first page is returned by default.
4. limit [optional] - amount of interactions per single page

Examples:

1. https://gateway.warp.cc/gateway/contracts
2. https://gateway.warp.cc/gateway/contracts?page=6