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Questions tagged [hrmp]

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Do I need to create a proposal on OpenGov in order to open an HRMP channel?

I'm not sure if this is the right question to ask, but do I need to create a proposal on OpenGov in order to open an HRMP channel between Kusama AssetHub and my Parachain? Any insights or resources ...
Noah's user avatar
  • 25
1 vote
0 answers
68 views

Error TooExpensive when transferring fungible assets between parachains

I'm trying to transfer fungible assets between two parachains. I'm using Westend relay chain, Westmint as first para and custom parachain as second para. I launched my setup with zombienet and opened ...
Artem Levchuk's user avatar
0 votes
2 answers
110 views

Opening HRMP Channel from AssetHub to Parachain using only paraId

I'm exploring the deployment of a parachain with an HRMP channel from AssetHub on day 1 to facilitate the migration of preexisting assets. Due to governance processes, this can take up to 28 days for ...
Valentin Fernandez's user avatar
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0 answers
16 views

When will the xcm-executor implement something on the instr `HrmpNewChannelOpenRequest`?

I want to have some automatic handling for channel opening requests. I can do this by executing some logic when the relay sends an HrmpNewChannelOpenRequest instruction, but the default xcm-executor ...
Juan Ignacio Rios's user avatar
1 vote
1 answer
70 views

Setting up an HRMP Channel between a Parachain and Rococo Asset Hub (Rockmine)

I'm currently working on understanding the process for establishing an HRMP channel between a parachain and the [Rococo Asset Hub][1] (Rockmine). I'm wondering whether a motion to the governance is ...
bgodlin's user avatar
  • 11
1 vote
1 answer
32 views

How to make a HRMP channel between two parachains in mock.rs?

I'm working on one pallet in which i have to initiate hrmp channel within the code of both "mock.rs" and in the "test.rs.". Can someone please guide me through this?
Arunjot Singh's user avatar
1 vote
1 answer
83 views

XCM TooExpensive when reserve transferring

I am running a local network containing an AssetHub and the Trappist parachain. I create assets on both chains, and I make the one on AssetHub a sufficient asset. I register the asset on the Trappist ...
Szegoo's user avatar
  • 657
3 votes
0 answers
57 views

Failed to execute hrmp open request on polkadot

We recently sent XCM messages from Phala to Polkadot to send HRMP open requests to PolkaDex parachain. We constructed the message as usual, but the message failed to execute on Polkadot. I haven't ...
Wenfeng Wang's user avatar
0 votes
0 answers
26 views

How to retrace the execution of completed XCM Transact calls?

How can someone retrace what actually happened during the execution of the Transact message? Recently the Zeitgeist parachain (2,092) sent an XCM to Polkadot that includes a Transact message that ...
sea212's user avatar
  • 539
2 votes
1 answer
24 views

Why is `HrmpChannelAccepted` described as only being safe to originate from a relay chain and not a parachain?

I am reading through this section of XCM Instructions : https://github.com/paritytech/polkadot/blob/97930a8b2cc211ecfb80f289c4c578a9157e6dc4/xcm/src/v2/mod.rs#L532-L565 And what I find here is that ...
Purple_Turtle's user avatar
2 votes
1 answer
327 views

Transfer Assets with XCM

We have successfully created the HRMP channel between two parachains and a relay chain.We want to transfer assets from one parachain(p1) to another parachain(P2), the channel is created from P1 to P2 (...
Arunjot Singh's user avatar
0 votes
1 answer
79 views

FailedToTransactAsset when trying to establish HRMP when using XCM

Getting error: FailedToTransactAsset Sender: 2113 Receiver: 2000 Sovereign account of 2113: 5Dt6dpkWPwLaH4BBCKJwjiWrFVAGyYk3tLUabvyn4v7KtESG (contains ~5 ROC) This is the call made to make the HRMP ...
Ramsey - Decentration's user avatar
1 vote
1 answer
35 views

Why does opening an HRMP channel use the Transact instruction instead of the HrmpNewChannelOpenRequest instruction?

Following the instructions in this post: How to open HRMP channels between parachains? It lloks like the following instructions are required to open an HRMP channel: WithdrawAsset BuyExecution ...
Lisa Gunn's user avatar
11 votes
1 answer
583 views

How to open HRMP channels between parachains?

I can see that many parachains have opened HRMP channels on Rococo and are beginning to experiment with XCM: Source: https://dotsama-channels.vercel.app I would like to open HRMP channels between ...
Bruno's user avatar
  • 8,365
1 vote
1 answer
111 views

Failure on HRMP channel creation

To update a parachain in a dev environment without redeploying the relaychain and other parachains I used sudoScheduleParaCleanup extrinsic. The cleanup and new onboarding seemed successful initially. ...
Rodrigo Quelhas's user avatar
8 votes
1 answer
197 views

How are the costs of XCM messages designed?

after playing with the Substrate Cumulus Parachain Template and the ping-pallet to get an idea of how to use XCM, I built a local Rococo testnet connected to two parachains. In my code, at some point, ...
lucgerrits's user avatar
2 votes
1 answer
142 views

XCM error. OverweightEnqueued event instead of opening HRMP channel

What is the reason of OverweightEnqueued event? There is the place of code where event OverweightEnqueued produced...
rust.dev's user avatar
  • 519
6 votes
2 answers
224 views

Barrier error during initiating HRMP channel with Rockmine on Rococo

I want to open HRMP channel with Rockmine on rococo. But I got the Barrier error and can't understand what is wrong with my request. This is my encoded call data ...
rust.dev's user avatar
  • 519
0 votes
2 answers
84 views

How to open HRMP with Rococo chain?

hrmp.hrmpInitOpenChannel( recipient: 3000 //the other parachain you want to open the channel with proposedMaxCapacity: 1000 // specifies how many messages can be in ...
rust.dev's user avatar
  • 519
0 votes
1 answer
116 views

Attempting to establish hrmp channels on rococo-local reports `Execution errored at 0: Unimplemented`

I have a local-rococo setup between parachain 3015 (sender) and parachain 2000 (recipient). I was able to send hrmpInitOpenChannel successfully to the recipient, followed by hrmpAcceptOpenChannel The ...
Mo Elshami's user avatar
3 votes
0 answers
86 views

How to write super simple custom relay chain

EDIT #2: TLDR Is it possible to write a bare bones version of polkadot relay chain that only has cross chain communication (HRMP) + consensus (BABE+Grandpa) but doesn't have anything else (no ...
Steven Yao's user avatar
3 votes
1 answer
283 views

Is there a link or guide on how to get a Sovereign Account Address?

I'm currently working on opening an HRMP Channel on Rococo with another parachain. In order to do this, I need to send an XCM to the relay chain. One of the items within this message requires a ...
Tim Baker's user avatar
3 votes
1 answer
63 views

How can I query the deposit in DOT to create an HRMP channel?

I'm looking in the Developers>Storage>hrmp tab but I can't find the option to check the current minimum to create an HRMP channel. Thanks
Sebastian Crypto's user avatar
2 votes
1 answer
247 views

XCM BuyExecution Fail: TooExpensive when transferring Native Token from your parachain to clone parachain

I am setting up the integration tests to transfer Asset from Parachain A to Parachain B (clone Parachain A). The XCM execution went successfully on Parachain A, the balance was deducted successfully, ...
jpcoder's user avatar
  • 98
6 votes
1 answer
278 views

How to enable cross-chain asset transfers to a parachain?

This is a question about XCM. Do I just need to add orml_xtokens dependency to a parachain to allow transferring assets to another chain?
99kies's user avatar
  • 753