Questions tagged [substrate-node-template]
Posts that reference the Substrate node template, a basic Substrate node typically used for getting started with Substrate.
512
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Zombienet: Substrate-Parachain-Template ... How to write the Dockerfile?
This question follows those questions below:
Q1 Zombienet: how to test custom parachain collator - block height(producing blocks) test
Q2 Zombienet: Substrate-Parachain-Template ... block height(block ...
- 1,193
4
votes
2
answers
879
views
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
I am using the latest substrate-node-template few weeks back it was building fine.
But the same project isn't building now, I did not do any changes. Error is occurring in runtime interface. I am ...
- 183
4
votes
2
answers
642
views
"error: failed to select a version for `parity-util-mem`"
Currently dealing with an issue building my chain where parity-util-mem is conflicting with parity-util-mem-ban duplicates and I don't know the exact way to specify a certain version for all ...
- 41
1
vote
0
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48
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Can I Delete AURA and GRANDPA?
In this tutorial it is explained how to create a PoW node. Neither AURA nor GRANDPA are used throughout the tutorial. Also here it's stated that such node will not finalize produced blocks.
The ...
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0
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1
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135
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How can I read JSON files in substrate
I am trying to modify the kitties pallet(https://docs.substrate.io/tutorials/v3/kitties/pt1/) in order to read some json data from an already existing file.
So, I need to read the contents of the file ...
4
votes
2
answers
369
views
Local network does not change validator set
Currently, we have a local test net with 4 substrate nodes using this runtime which has the staking and session pallets. 2 nodes (Alice and Bob) are validators, placed in the chain spec json file and ...
- 87
0
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2
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63
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Confused by the "Setting up tests for your pallet" doc
I'm referring to this doc: https://docs.substrate.io/how-to-guides/v3/testing/basics/
Is it just me or are the steps incomplete? For instance, it expects an add_value extrinsic to be implemented ...
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1
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2
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427
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Not able to build librocksdb-sys library for substrate-node-template
Getting this error while building substrate-node-template,
Command uses: cargo build --release
error: failed to run custom build command for librocksdb-sys v0.6.1+6.28.2
MacBook Air 2017, MacOS ...
- 11
2
votes
1
answer
60
views
How to resolve the conflict in impl-trait-for-tuple version | nicks pallet tutorial
I am following the tutorial on substrate playground, and when I run the cargo check, I get the following compilation error:
error: failed to select a version for `impl-trait-for-tuples`.
... ...
1
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2
answers
125
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How can I increase contract memory in pallet-contracts + chain-extension?
I am exposing some external functions to ink! contracts via a chain-extension in pallet-contracts. I am essentially passing a vector of bytes as a parameter to a contract method and directly ...
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1
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88
views
Getting error in rust while compiling substrate node-template [closed]
I am trying to add the staking pallet with other dependencies in node-template and getting this error during compiling, I will be thankful if someone help me to resolve this issue...
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1
vote
2
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157
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Runtime upgrade error: host doesn't provide such function: env:ext_storage_root_version_2
Our goal is to migrate code to the newer substrate version and keep the block history.
My old running node substrate version is tag = 'monthly-2021-09+1' -> New substrate version is branch = "...
- 195
4
votes
1
answer
335
views
the trait `WrapperTypeEncode` is not implemented for `ethereum_types::H256` & `ethereum_types::U256`
I am using:
ethereum-type version = "0.12", codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive"]}
scale-...
- 195
1
vote
1
answer
101
views
Building my substrate pallet - Rust errors
I am a beginner at learning Rust/substrate/Polkadot.
I am trying to build my custom substrate pallet
My goal is,
Create a custom Substrate pallet that allows only the Root origin account to control ...
- 11
1
vote
1
answer
48
views
Error facing while mocking runtime for unit testing
Here is the error I am seeing:
type mismatch resolving <sp_core::sr25519::Public as IdentifyAccount>::AccountId == u64
--> pallets/src/mock.rs:76:2
|
76 | type Public = <Signature as ...
- 759
1
vote
2
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276
views
How can I purging chain database between tests of a development testnet?
I am running a few tests using Jest and Polkadot.js, and I need to reset the state before each test. Should I do that or spawn a new node each time? And if so, what's the best way to do it? I am using ...
3
votes
1
answer
80
views
type annotations needed in libp2p-noise
On cargo build --release in my substrate project I am getting
error[E0282]: type annotations needed
--> /home/asmita-mfs/.cargo/registry/src/github.com-1ecc6299db9ec823/libp2p-noise-0.32.0/src/...
- 195
1
vote
0
answers
235
views
Error when building the substrate node on mac M1: incorrect value `...` for codegen option `split-debuginfo
While following the installation tutorial available at: https://docs.substrate.io/v3/getting-started/installation/
I ended up with cloning the node-template repository and running the build command as ...
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1
vote
1
answer
687
views
Problem compiling substrate node in WSL ( windows )
Getting error: failed to run custom build command for jemalloc-sys v0.3.2 error` when compiling substrate-node-template in wsl environment.
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1
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142
views
How to connect two nodes running on different computers?
I'm currently trying to deploy a private blockchain and I'm having problems trying to have nodes running on different machines but still communicating with each other.
I've created a docker image ...
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2
votes
1
answer
122
views
Pallet Fails to Build Because of `std` Macros
I am currently facing this Error:
Using rustc version: rustc 1.62.0-nightly (e85edd9a8 2022-04-28)
Compiling frame-support v4.0.0-dev (https://github.com/paritytech/substrate.git?branch=...
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240
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Question: Substrate vs Cosmos SDK [closed]
I need to gain some developer perspective on this if possible.
Essentially I'm trying to understand the following:
Are there any barriers to entry to use either of these? Or can any developer ...
0
votes
2
answers
99
views
Substrate Pallet::Call, unpack the Pallet:Call's content
In default Substrate-Node-Template I want to make some actions inside validate_transaction function which is located in runtime/src/lib.rs:
fn validate_transaction(
source: ...
6
votes
1
answer
258
views
How does Substrate detect the signing scheme when verifying signatures?
Substrate supports multiple signature schemes: ecdsa, sr2551, ed25519.
When sending a signed transaction how does substrate know what scheme to use for signature verification?
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70
views
How Can I send custom logs to telemetry data
I want to maintain log manager, especially for the custom logs.
I tried to integrate graylog server but available supporting crate for graylog does not have support for non-std so I am facing issue.
...
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7
votes
2
answers
109
views
How to change the number of heap pages
We are running into an allocator memory error where the number of heap pages appears to be insufficient to run a transaction on our validator (substrate-node).
This is the error in question:
2022-04-...
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0
votes
1
answer
52
views
failed to select a version for the requirement `sp-core = "^4.0.0-dev"` candidate versions found which didn't match: 5.0.0
While I am trying to write code for implementing pow algorithm in Substrate I have been getting some version issue with sp-core.
The error says "failed to select a version for the requirement sp-...
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136
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about ensure_signed
pub fn ensure_signed<OuterOrigin, AccountId>(o: OuterOrigin) ->
Result<AccountId, BadOrigin>
where OuterOrigin:
Into<Result<RawOrigin<AccountId>,...
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2
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2
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425
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How to enable `std` features in pallets?
I'm trying to implement simple PoW for my node. After debugging all other stuff I've encountered the problem where finality-grandpa and storage do not get compiled because standard library macros are (...
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3
votes
1
answer
100
views
Event type & Call type
I am doing Substrate-tutorial and I just have a question about template-node.
Inside impl 'frame_system::Config for Runtime {} code, there are type Event = Event and type Call = Call, but I don't see ...
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5
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179
views
Cannot import any pallets to the run time of node template
I have configured the staking pallet in the Substrate node template and tried to add it to the Cargo.toml in Run time
Then it ended up in the following error when building
This happens if I add any ...
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0
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0
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51
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Substrate-node-template build fail for Ubuntu 20.04 on Windows 10 [duplicate]
I was following the beginner's tutorial here: https://docs.substrate.io/tutorials/v3/create-your-first-substrate-chain/
When I get to cargo build --release I get the following error:
thread 'main' ...
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1
vote
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answer
106
views
Custom query for storage
I want to write custom query based on this answer:
impl<T: Config> Pallet<T> {
pub fn hello_world() -> u128 {
10
}
}
But the problem is, it is not exposed in query of ...
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111
views
How to write a custom query for storage?
When you declare a storage say
pub type Something<T> = StorageValue<_, u32>;
We get query function "something".
But I want to write some specific functions that reads storage ...
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7
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2
answers
86
views
What are the differences between using declarative and attribute macros in FRAME?
What's the main difference (besides the code) between using the decl_storage! macro rule and using the [pallet::storage] macro?
I've seen pretty much everyone using macro rules, but on the latest ...
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9
votes
3
answers
189
views
Error adding Custom RPCs for pallet
I've been trying to add some rpc calls available for my node, but an error related to the 'getrandom' module appears (even tho I'm not even using it).
I have a very simple pallet that creates and ...
- 1,104
6
votes
1
answer
181
views
Building a substrate node template with a global cargo `target` directory
I'm trying to build a substrate-node-template with the following command:
cargo build
I have my cargo target-dir set inside a global ~/.cargo/config.toml file:
[build]
target-dir = "/home/foo/....
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7
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1
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141
views
How to perform arithmetic operation on Option<BalanceOf<T>>?
Hello all developers and community members, I am very new to Substrate and Rust.
I am creating a pallet for NFT marketplace.
for storing out the NFT details I've created a struct as mentioned below.
...
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4
votes
2
answers
209
views
How to increase performance of building Substrate by "cargo build --release" command
I using Substrate-template-node to build pallet and my laptop have Core-i7 chip, but the time to build is range from 9-12 minutes. So, when I change code and have to wait to build and run.
So, my ...
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5
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118
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How to convert substrate Specific Types(Option<BalanceOf<T>> ) to Rust Primitive types (U64)?
I don't know how can I convert Option<BalanceOf> (subtrate specific type)to u64 (rust primitive types)?
I followed this article( How do you convert between Substrate specific types and Rust ...
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1
vote
1
answer
61
views
Error with substrate-api-client on local node
I am trying to run the substrate-api-client as a dependency for making RPC calls to the local substrate node.
But i am getting this error:
thread 'main' panicked at 'called `Result::unwrap()` on an `...
- 11
1
vote
0
answers
47
views
Why system pallet compiled failed caused by benchamrking part [closed]
just now, I modify the deps in cargo.toml, degrade from master to polkadot-v0.9.17 branch the compiler throw an error about this
Compiling sp-consensus-aura v0.10.0-dev (https://github.com/...
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4
votes
1
answer
87
views
How do I include a new rpc that uses a NetworkWorker in the node-template?
The node-template says its service.rs is a specialisation of that on the substrate master branch. Hence, it's sort of hard to relate the two. Nonetheless, I'd like to expose an RPC endpoint that's ...
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5
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1
answer
39
views
Hot Reloading of changes in Pallet in substrate
While developing with substrate when we make changes in pallets and want to quickly test the changes have explicitly stop existing running node and build the node template (which obviously takes time) ...
- 317
1
vote
1
answer
36
views
Query on polkadot-apps chain-state cuts of string. Text-overflow?
Im trying to store a public key in a StorageValue, but when i try to consult it on polkadot-js chain-state, the string gets cut off in the following manner:
KeyStart...KeyEnd
The value being put in ...
5
votes
1
answer
369
views
How do the Staking Rewards payouts work?
I've added Staking to substrate-node-template and just explored the feature. I've managed to add validators and nominators and it looks like everything is working well.
One thing I'm not able to ...
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votes
1
answer
233
views
How to change the era period?
I believe the default era period in substrate-node-template is 24 hours. Is there a way for me to change that period?
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2
answers
41
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How can I have some of the functions in separate file?
I want to keep some helper functions in a separate file. How can I do that?
impl<T: Config> Pallet<T> {
fn get_citizen_accountid(citizenid: u128) ->
fn get_citizen_id(...
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242
views
pallet loose-coupling+tight-coupling, and missing traits
The question is about both types of pallets-coupling. let's say we have 3 pallets A,B, and C.
C is tightly coupled to B (C Config is added in B Config), and we want to do a loose Coupling of A and B ...
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5
votes
1
answer
70
views
Substrate dependency management
My team is looking to implement a project in Substrate, and after some studying it seems like a dependency management nightmare.
Many of the 'sp' libraries call specific required functions within our ...
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