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Solver Guide

This tutorial describes how to run a solver node and how users can post problems to this.

Deployments​

ChainStageID
centauri-1mainnetcentauri1lnyecncq9akyk8nk0qlppgrq6yxktr68483ahryn457x9ap4ty2sthjcyt
osmosis-1mainnet

Problem Submission​

An example of a problem that the user can post is here:

          {
            "@type": "/cosmwasm.wasm.v1.MsgExecuteContract",
            "sender": "centauri1mgnu00vn0feumu660y6p7ty5mv58txvhgkr2lu",
            "contract": "centauri1lnyecncq9akyk8nk0qlppgrq6yxktr68483ahryn457x9ap4ty2sthjcyt",
            "msg": {
              "order": {
                "msg": {
                  "wants": {
                    "denom": "ppica",
                    "amount": "1000000"
                  },
                  "transfer": null,
                  "timeout": 2506928,
                  "min_fill": null
                }
              }
            },
            "funds": [
              {
                "denom": "ibc/EF48E6B1A1A19F47ECAEA62F5670C37C0580E86A9E88498B7E393EB6F49F33C0",
                "amount": "1"
              }
            ]
          }

An example of a mainnet transaction is available here.

You can try it using live code with this.

Deploying Your Own Contracts​

Here is how you can deploy your own contracts:

$BINARY tx wasm store $ORDER_WASM_FILE --from dz --gas=auto
$BINARY tx wasm instantiate 18 '{"admin": "centauri1u2sr0p2j75fuezu92nfxg5wm46gu22ywfgul6k", "cvm_address" : "centauri1wpf2szs4uazej8pe7g8vlck34u24cvxx7ys0esfq6tuw8yxygzuqpjsn0d"}' --label "mantis_order_1" --admin centauri1u2sr0p2j75fuezu92nfxg5wm46gu22ywfgul6k --gas=auto --from=dz

Running a Solver Node​

Documentation on how to run a solver node is located here.

Problem/Solution Format​

See on-chain indexer/explorer for the Problem Solver contract. It will show all in JSON format.

Querying the Order Book​

How to query the order book on MANTIS is shown below:

CVM Interface​

An example of how to convert the solution into a CVM program algorithm is depicted here.

Fees​

There are no fees; users just need to pay gas.

Contracts​

The full MANTIS contracts GitHub repo is here.

Contract to add the Problem to MANTIS​

The MANTIS contract to add the problem can be viewed here.