substrate

by jevinskie C++ Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | substrate Summary

substrate is a C++ library. substrate has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

substrate

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Quality

Security

License

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Support

substrate has a low active ecosystem.

It has 98 star(s) with 57 fork(s). There are 7 watchers for this library.

It had no major release in the last 6 months.

substrate has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of substrate is current.

Quality

substrate has no bugs reported.

Security

substrate has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

substrate does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

substrate releases are not available. You will need to build from source code and install.

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substrate Key Features

No Key Features are available at this moment for substrate.

substrate Examples and Code Snippets

No Code Snippets are available at this moment for substrate.

Community Discussions

Trending Discussions on substrate

How do you write a system test for your runtime?

How to access Storage from frame_system::Config?

Is there a way to call c code from a substrate project?

[NDK_PROJECT_PATH=null]. Not able to resolve Android-NDK error from a sample project related to PARALLEL-SPACE

find words in a text divided in sentences R

Substrate recipe basic-pow doesn't mine blocks?

Substrate Parsing mdns packet failed

Transferring assets between accounts and pallet

Why can't I send an extrinsic from py-substrate-interface?

How does one correctly stop a substrate node

QUESTION

How do you write a system test for your runtime?

Asked 2021-Jun-14 at 06:35

Hi I am developing a runtime using Substrate-FRAME and I would like to know how can I write a system test for my runtime?

The main purpose of writing a system test is to ensure that the final build is fulfilling all of the required specifications and also to ensure nothing is compromised on a runtime upgrade. The idea for me is something similar to point no. 2 mentioned in this thread.

Any documentation regarding this type of tests would be greatly helpful.

Update:

I ended up using py-substrate-interface to make test scenarios. Now I can automatically deploy nodes to form a network (thanks to Python) and run my custom system test scenarios. Very useful tool for developing runtimes in Substrate.

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ANSWER

Answered 2021-Apr-14 at 16:18

There is an overview here on the DevHub

And there are examples throughout substrate that include tests.rs and mock.rs files to use as reference.

If you have not already, checkout the create a pallet tutorial and the recipes all have some tasty examples to look at for these as well.

Source https://stackoverflow.com/questions/66884974

QUESTION

How to access Storage from frame_system::Config?

Asked 2021-Jun-09 at 12:16

I'm trying to convert the utxo.rs of Substrate's utxo-workshop to FRAME v2.

Here's a snippet that errors out at > (Because Number is private?).

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ANSWER

Answered 2021-Jun-09 at 12:16

You are able to access a runtime pallet's storage once the runtime is built, process done by the macro construct_runtime!{}. As you can read here https://substrate.dev/rustdocs/v3.0.0-monthly-2021-05/frame_support/macro.construct_runtime.html A pallet that doesn't appear in that macro won't be part of your runtime, and so its storage will not be accessible.

Source https://stackoverflow.com/questions/67903760

QUESTION

Is there a way to call c code from a substrate project?

Asked 2021-May-18 at 15:51

It's trivial to call c from rust normally, is there a way to do so from a substrate project? I can't find anything online saying it's possible or it's not possible.

I have a c library I'd like to use as part of a substrate project and I was wondering if it would be possible to use it without rewriting it.

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ANSWER

Answered 2021-May-18 at 15:51

Many FFI libraries are no_std compliant, this is the only hard requirement for being used in substrate runtimes. Checkout the list here and look for that tag for options to move forward: https://lib.rs/development-tools/ffi

If you are using this library outside the runtime, you should be able to use any rust library.

Source https://stackoverflow.com/questions/67582836

QUESTION

[NDK_PROJECT_PATH=null]. Not able to resolve Android-NDK error from a sample project related to PARALLEL-SPACE

Asked 2021-May-09 at 10:08

Error Logs

External native generate JSON release: executing ndkBuild Executable : /Users/nidhinagvanshi/Library/Android/sdk/ndk/20.0.5594570/ndk-build arguments : NDK_PROJECT_PATH=null APP_BUILD_SCRIPT=/Users/nidhinagvanshi/Downloads/VirtualApp-master-2/VirtualApp/lib/src/main/jni/Android.mk NDK_APPLICATION_MK=/Users/nidhinagvanshi/Downloads/VirtualApp-master-2/VirtualApp/lib/src/main/jni/Application.mk APP_ABI=x86 NDK_ALL_ABIS=x86 NDK_DEBUG=0 APP_PLATFORM=android-16 NDK_OUT=/Users/nidhinagvanshi/Downloads/VirtualApp-master-2/VirtualApp/lib/build/intermediates/ndkBuild/release/obj NDK_LIBS_OUT=/Users/nidhinagvanshi/Downloads/VirtualApp-master-2/VirtualApp/lib/build/intermediates/ndkBuild/release/lib APP_SHORT_COMMANDS=false LOCAL_SHORT_COMMANDS=false
-n jvmArgs :

/Users/nidhinagvanshi/Library/Android/sdk/ndk/20.0.5594570/build/core/add-application.mk:178: *** Android NDK: APP_STL gnustl_static is no longer supported. Please switch to either c++_static or c++_shared. See https://developer.android.com/ndk/guides/cpp-support.html for more information. . Stop. External native generate JSON release: using platform version 16 for ABI ARMEABI_V7A and min SDK version 14 External native generate JSON release: rebuilding JSON /Users/nidhinagvanshi/Downloads/VirtualApp-master-2/VirtualApp/lib/.externalNativeBuild/ndkBuild/release/armeabi-v7a/android_gradle_build.json due to: External native generate JSON release: - expected json /Users/nidhinagvanshi/Downloads/VirtualApp-master-2/VirtualApp/lib/.externalNativeBuild/ndkBuild/release/armeabi-v7a/android_gradle_build.json file is not present, will remove stale json folder External native generate JSON release: - missing previous command file /Users/nidhinagvanshi/Downloads/VirtualApp-master-2/VirtualApp/lib/.externalNativeBuild/ndkBuild/release/armeabi-v7a/ndkBuild_build_command.txt, will remove stale json folder

Android.mk

...

ANSWER

Answered 2021-May-09 at 10:08

I resolved this error by downgrading NDK. The following line was changed in local.properties:

Source https://stackoverflow.com/questions/67455135

QUESTION

find words in a text divided in sentences R

Asked 2021-May-08 at 14:24

Hello there I have a text and I'd like to retrieve only the sentences that contains certain words. Here is an example.

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ANSWER

Answered 2021-May-08 at 13:42

You can create a regex pattern from my_words and use it in grep.

Source https://stackoverflow.com/questions/67448170

QUESTION

Substrate recipe basic-pow doesn't mine blocks?

Asked 2021-May-02 at 18:56

I compiled the latest version of the node "basic-pow" from the substrate recipes, run the node using the command "./basic-pow --alice" so i have the authority role, but it never produces blocks, it prepared the first block but never imported it and that's it! Any idea how to debug this issue?!

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ANSWER

Answered 2021-May-02 at 14:59

according to this ticket on Github https://github.com/substrate-developer-hub/recipes/issues/432, it is confirmed broken.

// edit: A basic solution was added to the ticket.

Source https://stackoverflow.com/questions/67205027

QUESTION

Substrate Parsing mdns packet failed

Asked 2021-Apr-20 at 19:06

I am currently doing this tutorial. And on the same machine it worked as expected: The nodes are connecting and are creating and finalizing blocks. But now I want to do the same over the internet. So I have a server (Ubuntu 16.04 xenial) with open port 30333 on which I am running this command:

...

ANSWER

Answered 2021-Mar-27 at 19:10

I did reclone and recompile both nodes and somehow it's working now. I did not change anything in the command except the --no-mdns flag.

Source https://stackoverflow.com/questions/66733134

QUESTION

Transferring assets between accounts and pallet

Asked 2021-Apr-16 at 03:02

I'm trying to create a pallet that users can deposit assets into and withdraw from. I've written the following code, but I'm not sure it's the best way to about things due to frame_system::RawOrigin::Root.into() being accessible by every runtime.

I'm still fairly new to Substrate and not sure this is exactly how it works, would love some guidance on the best design choice.

Making use of assets pallet to deposit:

>::transfer(origin, asset_id, RawOrigin::Root.into(), amount);

To Withdraw:

>::transfer(RawOrigin::Root.into(), asset_id, origin, amount);

Edit

A similar idea written in Solidity:

...

ANSWER

Answered 2021-Apr-14 at 07:20

We follow a pretty simple pattern to give pallets their own "account" for transferring balances to or anything else.

First you create a unique PalletId representing your pallet:

Source https://stackoverflow.com/questions/67082488

QUESTION

Why can't I send an extrinsic from py-substrate-interface?

Asked 2021-Apr-14 at 11:29

Hello guys I am working on submitting an extrinsic via the py-substrate-interface, but for some reason I keep getting an error while following the sample mentioned here. My code is as follows:

...

ANSWER

Answered 2021-Apr-13 at 02:14

OK after digging out a bit more found out that the issue was related to the encoding in parity-scale codec and you need to adjust the network configuration according to your runtime. So I changed from:

Source https://stackoverflow.com/questions/67054979

QUESTION

How does one correctly stop a substrate node

Asked 2021-Apr-14 at 05:50

The second bullet point in the create-your-first-substrate-chain tutorial alludes to

properly terminate your node

How does one properly terminate a substrate node in order to "save all active data for the node"?

I reckon ctrl + c will stop it, but the tutorial suggests there might be a better way without elaborating.

...

ANSWER

Answered 2021-Apr-13 at 12:33

Using ctrl + c is the proper way to stop your running Substrate node.

Source https://stackoverflow.com/questions/67073991

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install substrate

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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