'pool' entity in DEX queries

[Mark Ettinger]

I have not been able to successfully query Uniswap or Sushi using the 'pool' entity. I always get the empty list as return value from the query. Do you have an example of how to properly do this form of query for DEXs?

[Iván Alberquilla]

You need to specify the pool id, for example, this should work for uniswap v2

list_swaps_dai_weth = uniswap.get_data_from_date_range(start_date_amm, end_date_amm, "swap", pool='0xa478c2975ab1ea89e8196811f51a7b7ade33eb11')

[Mark Ettinger]

I was referring to 'pool' as an entity, not as a keyword. For example:

uniswap.supported_entities() returns ['swap', 'pool']

Specifically here is what I mean:

uniswap.get_data_from_date_range(start_date_amm, end_date_amm, "pool", pool='') returns []

and

uniswap.get_data_from_date_range(start_date_amm, end_date_amm, "pool", pool='0xa478c2975ab1ea89e8196811f51a7b7ade33eb11') results in the error:

KeyError                                  Traceback (most recent call last)
<ipython-input-76-1536d355d2d6> in <module>
----> 1 uniswap.get_data_from_date_range(start_date_amm, end_date_amm, "pool", pool='0xa478c2975ab1ea89e8196811f51a7b7ade33eb11')

~\anaconda3\lib\site-packages\deficrawler\dex.py in get_data_from_date_range(self, from_date, to_date, entity, pool)
     34         if(pool != ''):
     35             pool_filter = {
---> 36                 self.mappings_file['entities'][entity]['query']['params']['pool']: pool
     37             }
     38 

KeyError: 'pool'

[Iván Alberquilla]

If you want to get the data related to the pools, you should use uniswap.get_all_pools() This will return all the uniswap pools.

To get data related with liquidity providers in pools you can use mint or burn entities. Take a look to the tests here:
https://github.com/keyko-io/defi-crawler-py/blob/main/tests/int/test_mint.py

[Mark Ettinger]

Thank you for this information! Is there a simple way of getting the balances of the two tokens in a pool or pools at a specific time or specific block?

[Iván Alberquilla]

Not yet, I'll add some new fields to the pools, but not sure if query the historical liquidity will be supported.