Show transaction fees on TX Detail page

[kcole16]

Story

As a user, I want to view the transaction fees for a given transaction, so I can better understand my costs and NEAR's economics.

Acceptance Criteria

• Total Gas Cost (gas used * gas price)
• Gas Units Used (units of gas)
• Gas Unit Price (price per unit in NEAR) Ⓝ

[frol]

Fees are not exposed via RPC for individual transactions just yet (near/nearcore#1299), so this issue is blocked by nearcore.

[icerove]

got it

[icerove]

wait for near/nearcore#2109
@kcole16

[frol]

@icerove Why exactly are we waiting for near/nearcore#2109?

It seems that this issue is only blocked by near/near-api-js#242

[icerove]

I think gas price can be extracted from block header we already have

[frol]

We can do that as well, but pushing nearlib is not that hard as well.

[icerove]

Definitely can, but it will be slower since we go into nearlib and wait for query again to get gas price. Does not make more sense to do so. Still do the work to expose gas price in the nearlib.

[frol]

It is unclear why do you think we already have information about a block header on the transaction details page. I assume we don't have this information there, which means you will need to query it, and gas price response is tiny while block query returns the whole header and all the chunks headers.