Questions tagged [substrate-node-template]
Posts that reference the Substrate node template, a basic Substrate node typically used for getting started with Substrate.
512
questions
2
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1
answer
29
views
How to use FixedU128?
I'm fetching floating value in offchain worker though lite-json.
Json data:
{
"price": 0.5
}
Here is the implementation to fetch the price:
let price_str = match obj.clone() {
...
- 1,501
0
votes
0
answers
26
views
How to establish web socket connection in offchain_worker
Is there any way/example to establish web socket connection through off chain worker? There are many Rust examples but I can't use standard library.
Can someone please help me?
- 413
4
votes
1
answer
102
views
Facing issue in adding offchain worker
I'm using pow substrate chain.
I'm running 3 validators by using these commands:
For bob
./target/release/node-template \
--base-path /tmp/bob \
--chain local \
--bob \
--port 30335 \
--rpc-port 9944 \...
- 1,501
1
vote
1
answer
36
views
Build a test node without exposing Alice account
I need to build and run a substrate node in a such way that polkadot.js.org/apps will not display Alice, Bob etc at accounts page. I tried to remove all mentioning of Alice, Bob etc. from the rust ...
0
votes
1
answer
22
views
What is the use case for inherent transactions?
Just for curiosity!
In what conditions we can use Inherent transactions?
Thanks
- 1,501
0
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0
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17
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node-template compilation failed on: sc-network-bitswap v0.10.0-dev [duplicate]
I am following guide at https://docs.substrate.io/quick-start/start-a-node/
git clone https://github.com/substrate-developer-hub/substrate-node-template
cd substrate-node-template
git switch -c my-...
- 85
0
votes
1
answer
20
views
How to read treasury pallet funds?
I am able to add funds in treasury pallet, now I want to get the total balance of treasury pool. How can this be done? Can someone provide some suggestions?
- 1,208
1
vote
1
answer
37
views
failed to get `pallet-node-authorization` as a dependency of package `node-template-runtime v4.0.0-dev
I am learning "substrate" now and I set dependence according to the tutorial as below:
[dependencies]
pallet-node-authorization = { default-features = false, version = "4.0.0-dev", ...
- 11
2
votes
1
answer
37
views
Hardcode additonal validator in chainspec
I was referring the substrate documentation on preparing a local relay chain . The documentation has provided a sample plain chain spec with two validators Alice and Bob. I need to hardcode an ...
- 31
1
vote
1
answer
74
views
TypeError: api.tx.balances.transfer is not a function substrate contracts node
api.tx.balances.transfer was working perfectly some time ago. I tried to re-run my testcase today and I'm getting this error.
const rawTX = api.tx.balances.transfer(alice.address, 30)
...
- 13
0
votes
0
answers
25
views
Why Transaction would exhaust the block limits
locally we are not getting this issue but in tanssi getting this issue RPC-CORE: submitAndWatchExtrinsic(extrinsic: Extrinsic): ExtrinsicStatus:: 1010: Invalid Transaction: Transaction would exhaust ...
- 1,208
2
votes
1
answer
33
views
How to join substrate as infrastructure provider
I wanted to know the complete process of joining polkadot builders as infrastructure provider but could not get a proper guide explaining that. Can someone please tell the process and what happens in ...
1
vote
1
answer
59
views
while building an application logic (use macros in a custom pallet)
[][in build an application logic im facing this error im new to substrate please help me fix this.]
- 31
2
votes
0
answers
42
views
segmentation fault ERROR
I just started in learning substrate and I want to run the example. I take the tutorial on the site https://docs.substrate.io/install/macos/.
I have already done all steps. I tried run test blockchain ...
- 21
0
votes
0
answers
23
views
Designing a Mechanism to Improve the Efficiency of Applications Deployed on Parachains?
As I was going through the mechanism of working of parachains , I came across a scenario that currently the time taken from collator producing a block on a parachain, to that block becoming finalised, ...
- 297
2
votes
1
answer
26
views
What is the difference between the node folder and runtime folder in substrate node template?
In the Substrate node template there are two folder node and runtime. When I am building the chain I guess runtime folder is utilized. I am wondering what is the purpose of the two folders?
- 341
2
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0
answers
35
views
Cant produce new blocks with custom ChainSpec file
I was using substrate version of 4.0.0-dev-41ad4a6c9d7 and following the Add Trusted Nodes for making a custom account as a Authorites account
here, I can't able to produce new blocks, I don't know ...
- 95
2
votes
2
answers
83
views
How to Retrieve Value by Single Key from StorageDoubleMap in Substrate?
I'm developing a Substrate-based blockchain and using StorageDoubleMap to store label details. The StorageDoubleMap is defined as follows:
#[pallet::storage]
#[pallet::unbounded]
#[pallet::getter(fn ...
- 883
1
vote
1
answer
44
views
Trait Bound f64: scale_info::TypeInfo Is Not Satisfied
I'm working on a Substrate-based blockchain project and I've run into an issue related to type information and encoding. Specifically, I'm trying to use an f64 field within a struct that also uses ...
- 883
1
vote
1
answer
43
views
How to Add and configure Democracy Pallet to Substrate Runtime
I've made an attempt to incorporate the "pallet-democracy" into my Substrate runtime. In the runtime/Cargo.toml file of my Substrate node template, I've added the following configuration:
...
- 118
1
vote
1
answer
27
views
How to change POA to POS with babe?
How to change the the consensus of node-template from POA to POS with babe?
- 1,501
0
votes
1
answer
21
views
How to restrict the minting in pallet-nft?
We need to find a way to restrict the minting in the nft pallet so only certain accounts can mint a nft or can create a collection. How can this be done?
- 1,208
1
vote
1
answer
27
views
Handling Nested Option Types in StorageDoubleMap::iter_prefix Method
I am building a Substrate pallet where I have a storage item defined as a StorageDoubleMap:
#[pallet::storage]
#[pallet::unbounded]
#[pallet::getter(fn labels)]
pub(super) type Labels<T: Config> ...
- 883
2
votes
1
answer
58
views
Facing Issue in integration of POS
I'm integrating the POS in freshly node template. I'm facing this error:
This is the code repository: https://github.com/Aideepakchaudhary/POA-to-POS
Can anyone please help me to solve this issue?
...
- 1,501
0
votes
1
answer
33
views
error[E0277]: the trait bound `LabelInfo<T>: parity_scale_codec::Decode` is not satisfied
i wanna to create pallet in substrate . i faced this error . how can i solve this problem ?
#![cfg_attr(not(feature = "std"), no_std)]
/// Edit this file to define custom logic or remove it ...
- 883
3
votes
2
answers
52
views
How to use bounded_vec macro in benchmarking.rs
I was using substrate-node-template, and created some benchmarking functions.
I was able to use bounded_vec macro in tests.rs but, can't able to use it in the benchmarking.rs file
my code
#
- 169
0
votes
0
answers
13
views
Polkadot Typegen importing JS extension instead of TS
We are using the typegen to create types for our custom chain.
Following the docs
The code that is generated is kinda strange. In the augment-api.ts file it tries to import all the other generated ts ...
- 341
0
votes
0
answers
22
views
Build a blockchain
I'm following substrate documentation in that build a blockchain tutorial while following the monitoring node metrics tutorial.
I got stuck while installing prometheus on my ec2 instance is there any ...
- 31
1
vote
1
answer
29
views
Node template with POS Babe consensus: Removal of Unnecessary Extra Pallets
Here is the node template with Babe:
https://github.com/paritytech/substrate/blob/6a946fc36d68b89599d7ca1ab03803d10c78468c/bin/node/runtime/src/lib.rs#L1583
The above template is functioning smoothly ...
- 775
0
votes
1
answer
30
views
Error Running Substrate Node: Unsupported or invalid BabeApi version
I am trying to run a Substrate node with a custom chain specification. I used the following command to run the node:
./target/release/substrate \
--base-path /tmp/pikamo \
--chain ./...
- 883
0
votes
0
answers
45
views
Maintained Substrate-NPoS-template?
Substrate has a substrate-node-template with Aura consensus which is well maintained and updated time to time. Do we have a same kind of template for NPoS consensus which is well maintained and ...
- 759
5
votes
1
answer
123
views
How to solve this error: associated type `BlockNumber` not found for `T`?
I have substrate node template with babe and i want to integrate orml-currencies.
I'm using this in cargo.toml:
orml-currencies = { default-features = false, git = "https://github.com/open-web3-...
- 1,501
5
votes
1
answer
51
views
Gas less Transactions
Hi I am building a solo chain by using the substrate node template but i am stuck here that i wanna change the gas fee to 0 of every transaction that is happening on the chain this chain will be a ...
- 169
3
votes
1
answer
62
views
How to add custom account as initial authorities in chain_spec.rs file
I've successfully added custom accounts in the Sudo account and pre-funded accounts following this stack adding an account but I also wanted to set custom accounts as initial PoA authorities.
Thank ...
- 31
1
vote
1
answer
25
views
Polkadot JS query response types are missing
No types for blockchain query responses are available in our IDE.
Doing any query like this
await blockchain.api.query.assets.asset(id, (res) => {
const info = res.toJSON()
console.log(&...
- 341
1
vote
1
answer
59
views
Substrate Node Error: Denied request: HTTP header: host value verification failed
I am trying to run a Substrate node with a custom configuration using the following command:
./target/release/node-template \
--base-path /tmp/pikamo \
--chain ./customSpecRaw.json \
--port ...
- 883
1
vote
1
answer
34
views
Can't build node when using pallet-nfts in custom pallet
I'm using pallet-nfts in my custom pallet. From the moment that I integrated pallet-nfts into my pallet it's not longer possible to build the node.
The custom pallet's Cargo.toml looks like this:
[...
1
vote
1
answer
27
views
I got this error while building a blockchain (building a local blockchain)
when i run node template without --ws external its producing blocks but when i run with --ws external its giving me error please help me fix this im new to substrate.
- 31
0
votes
0
answers
32
views
How can I ensure that the validator and nominator do not incur transaction fees?
I would like to prevent the fees mechanism within the chain from imposing any transaction fees on validators and nominations. Could someone kindly provide guidance on achieving this?
- 664
1
vote
0
answers
49
views
BestWay The Restart Substrate Node
After adding the validator node, it may encounter issues preventing it from creating blocks and initiating the next era in the blockchain.
in this case,is there a way to restart the network?
keep the ...
- 11
0
votes
1
answer
48
views
how to resolve could not find `__private` in `frame_support?
I am following following tutorial to write collectibles pallet:
https://docs.substrate.io/tutorials/collectibles-workshop/.
My source code is available here:
https://github.com/sayyedkamran/substrate-...
- 671
1
vote
1
answer
41
views
Setting metadata of an item of the Nfts pallet in a custom pallet
I have a custom pallet that makes calls to the Nfts pallet to create collections and mint NFTs. The problem is that I can't find a way to set the metadata of a token. I do see something like ...
1
vote
1
answer
12
views
Using CollectionSetting::DepositRequired in create_collection causes a WrongSetting error
I'm integrating my own pallet with Substrate's NFTs pallet. In my logic I try to create a collection with specific settings as follows:
let nft_collection_id = <T as Config<I>>::Nfts::...
0
votes
1
answer
28
views
How to Check if an Address is a Node in a Substrate Blockchain Network?
I'm working on a Substrate-based blockchain network. I need to verify if a user with a specific address (e.g., 5XDDFFDF...) has added a node to the network. Depending on the verification, I want to ...
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2
votes
0
answers
41
views
How can I use the --rpc-cors flag properly?
I m attempting to use the --rpc-cors flag to specify certain domains that are allowed to send requests to my chain (localhost - substrate-node-template). However, regardless of how I use this flag, I ...
- 113
0
votes
0
answers
55
views
Rust Compile Error: Unresolved imports crate::pallet, crate::types::Types::Config
I am working on a Rust project where I have multiple modules. I'm facing an issue with unresolved imports when I try to compile my code. Here's the relevant code structure:
types.rs
pub mod Types {
...
- 883
2
votes
1
answer
98
views
Is it permissible to retrieve the value of a private field within a struct from one pallet while working with another pallet?
I am developing a cross-chain NFT transfer pallet that involves transferring both item metadata and collection metadata. To accomplish this, I need to access the data field within the ItemMetadata ...
- 297
1
vote
1
answer
58
views
An argument of type `ark_ec::short_weierstrass::Affine<BandersnatchConfig>` is missing
I wanna to build a parachain to run it localy .
The rust version I am using is : rustc 1.72.0 (5680fa18f 2023-08-23)
But when I run the command : cargo build --release it show me this error :
...
- 883
0
votes
1
answer
96
views
I want to get ws rpc url with the docker image for our substrate node
I'm in the process of creating a Docker image for our Substrate-node, and I used that following method to accomplish it.
# This is an example build stage for the node template. Here we create the ...
- 47