Goal: Nuon v2 Price Feed

[Jarryd-pretorius]

Specs

Blocked by

• Goal: get TN data to EVM chains #547

Problem:

Truf-data-provider:

• https://github.com/trufnetwork/truf-data-provider/issues/348
• https://github.com/trufnetwork/truf-data-provider/issues/349
• https://github.com/trufnetwork/truf-data-provider/issues/350
• https://github.com/trufnetwork/truf-data-provider/issues/351
• https://github.com/trufnetwork/truf-data-provider/issues/352
• https://github.com/trufnetwork/truf-data-provider/issues/365
• https://github.com/trufnetwork/truf-data-provider/issues/371
• https://github.com/trufnetwork/truf-data-provider/issues/372
• https://github.com/trufnetwork/truf-data-provider/issues/375

SDK-Js:

• Problem: SDK does not support custom procedures sdk-js#25

ChainLink/EVM:

• https://github.com/trufnetwork/truf-data-provider/issues/353

[Jarryd-pretorius]

Hey @georgeciubotaru @markholdex this issue is a request from Nuon a customer of the TSN we need to use Truflations inflation data to create a create a peg price for Nuon please let me know if this issue makes sense and if you have any questions I'd like to get feedback on this as soon as we can. Thanks!

CC: @itscameronlee

[itscameronlee]

I just realized that I didn't include where the data is to be output. The Nuon protocol expects to be able to pull this data from a standard Chainlink oracle.

[markholdex]

@Jarryd-pretorius do you mind putting the description in a Google doc (with comment permission) so we can ask questions over specific elements?

[Jarryd-pretorius]

Done @markholdex

[Jarryd-pretorius]

Hey @markholdex did you have any comments regarding this issue?. Would it be good to get the TSN guys to have a read @outerlook @MicBun

[rsoury]

@zolotokrylin - What's your take on this? Shall we take this task on?
Will await your confirmation.

[zolotokrylin]

@rsoury, let's spec it to the extent that no one has questions or concerns. Then we "price" is (XS, S, M, L, XL, XXL) and take it from there in comparison with other issues. I will introduce new labels to mark the size of the EPIC (Goal).
But nothing stops us from Specing it 🙏

[Jarryd-pretorius]

@zolotokrylin I have left my comments in the doc I think this is something pretty important for Nuon so if @rsoury has capacity to help out on this one from the data provider side that would be great

[Jarryd-pretorius]

Hey @outerlook @MicBun let me know if there are anymore outstanding questions on this issue would like to get it moving thanks!

[MicBun]

Hi @Jarryd-pretorius, @outerlook and I have made some comments on the Spec document.

[Jarryd-pretorius]

Thanks @MicBun I have DM'd @itscameronlee to answer the last outstanding comments, thanks!

[markholdex]

@Jarryd-pretorius I left a set of questions at the bottom of the doc as suggestions. Can you please apply them? And let's comment on individual questions to resolve them and write the answers. There are many unknowns at this stage.

[outerlook]

I appreciate @markholdex's list at the end. I added my concern about mutability

[Jarryd-pretorius]

Awesome thanks @markholdex @outerlook for your questions since this originally was a request from the new Nuon team I have asked Cameron to please comment on your questions so there's no ambiguity 👍

[outerlook]

Added an implementation suggestion on TSN side for this, based on my current understanding of it, to align expectations.

please @MicBun feel free to improve if you notice something on TSN side

[MicBun]

please @MicBun feel free to improve if you notice something on TSN side

Looks good to me, so basically an entire custom contract for Nuon

[MicBun]

This might be a blocker:

• https://github.com/truflation/truflation-transformers/issues/228

tfi: The current inflation index fetched from the Truflation API.

If the inflation index calculations are wrong, the tfi will become wrong too.

[markholdex]

@Jarryd-pretorius can you please share edit access with me so I can cleanup the specs?

[Jarryd-pretorius]

@Jarryd-pretorius can you please share edit access with me so I can cleanup the specs?

Done mate your good to edit now @markholdex

[outerlook]

I highlighted the open questions that need clarification for the coding phase. Almost all seems done.

I'm not sure who to tag for these answers (or if I should tag someone)

[Jarryd-pretorius]

@outerlook Best person to tag regarding answers would be @itscameronlee

[Jarryd-pretorius]

@outerlook @itscameronlee is there anything holding this issue back that needs to be resolved?

[outerlook]

Hi @Jarryd-pretorius, only one clarification is pending. I now tagged @itscameronlee on the specs. Thank you

[zolotokrylin]

@outerlook, this Goal is blocked by:

• Goal: get TN data to EVM chains #547
• https://github.com/truflation/truflation-transformers/issues/228

[rsoury]

@zolotokrylin @markholdex - Appreciate the patience on this.

I've added my own comments and suggestions.
I assume this is a WIP Spec, until we have the blocking issues, detailed by Vadim, cleared.

Is there a team responsible for the Nuon EVM Contracts? It may be more relevant for them to revise, and formalise the Spec. Then the TSN team can provide the Oracle integration and Chainlink Automation implementation details.

[zolotokrylin]

Is there a team responsible for the Nuon EVM Contracts? It may be more relevant for them to revise, and formalise the Spec.

@itscameronlee :)

[Jarryd-pretorius]

@outerlook @rsoury @MicBun are there any outstanding questions on the doc that need to be addressed before this can get started?

[MicBun]

@outerlook @rsoury @MicBun are there any outstanding questions on the doc that need to be addressed before this can get started?

@Jarryd-pretorius, We can start, but we won't be able to finish with the desired output yet. One of the requirements is the outputted data is being able to be consumed with ChainLink. Unfortunately, I don't think we are able to work on these two in parallel.

[zolotokrylin]

Blocked by

• https://github.com/truflation/truflation-transformers/issues/228
• Goal: get TN data to EVM chains #547

[Jarryd-pretorius]

Ok thanks for the updates guys, I think we will need to go through the centralised system to get this price feed then given the required timeline. I have made an issue here for it https://github.com/truflation/truflation-transformers/issues/322

CC: @itscameronlee

[MicBun]

Log: I've broken the Spec requirement into smaller problems, I will start working on what I think is already unblocked.

[MicBun]

log: the contract part of this Goal is nearly complete and I have deployed it too into TRUF Network

price = ( The inflation index / Divisor ) * Base Value
price = ( 152.585527255088229495 / 146.2388272894838 ) * 1
price = 1.043399554572746686

It still needs the ChainLink part of this Goal to complete which is still blocked.

[markholdex]

log of the call with @itscameronlee:

• presented the solution we developed
• agreed that Nuon team will take over and start implementing the EVM contract on their end following the docs: https://github.com/trufnetwork/evm-contracts
• Cam will pass the docs to Doggo and do an introduction to him
• If information will be missing or unclear, we will assist

---

This goal will be closed once the remaining Problem is solved:

• Problem: SDK does not support custom procedures sdk-js#25

[MicBun]

Since all the problems have been resolved, I will close the goal.