Advice on strategy for bancor staked tokens

[TimDaub]

Hi,

I'm interested in building a strategy to vote by staked tokens in bancor. I've taken a look around the internet, but I haven't found too much. I'm specifically interested in OCEAN/BNT. But I can make the strategy generic. Here's a bit of research:

• to my knowledge for Bancor V2 there's no working subgraph. All I found was https://github.com/blocklytics/bancor-subgraph-v2 but it's far from complete and not running online.
• It's non-trivial to go from OCEANBNT pool token to OCEAN staked. There are multiple moving parts
• The attempt here works with logs https://github.com/w1kke/snapshot.js/blob/master/src/strategies/ocean-bancor/liquidity-snapshot/index.js but I see a problem: In case the logs become too many, it may be that the Infura node times out. But I'm not sure. Ideas?
• snapshot doesn't have any pre-configured strategies for bancor LPs. I checked this repo.

Does anyone have tips or advice on how to get the number of staked tokens in a bancor pool?

[TimDaub]

Thanks to flymaster29 on bancor discord, I found: https://github.com/zeriontech/defi-sdk/blob/b4c493edab2aee1ef0e8e434724e0beb0e882799/contracts/adapters/bancor/BancorLockedTokensAdapter.sol#L42

[TimDaub]

I tried the Zerion adapter on Mainnet. But I wasn't successful...

[TimDaub]

glenn from bancor gave the deciding tip. Call https://etherscan.io/address/0x9712bb50dc6efb8a3d7d12cea500a50967d2d471#readContract totalProvierAmount.

I ended up implementing this as a test case in the "contract-call" strategy in the snapshot-strategies repository. Here's the working examples.json file.