Aspect Library

Introduction

A AssemblyScript library for writing aspect to be deployed to Artela，The aspect-libs provides Host APIs to interact with the Aspect runtime, with this set of APIs, you can access blockchain data, smart contracts, cryptographic functions, invoking system calls and more.

Installation

The aspect-libs library provides APIs to access the Artela Node store, blockchain data, smart contracts, cryptographic functions and more. To use it, all you have to do is add a dependency on it:

• If you're using npm install

npm install --dev @artela/aspect-libs # NPM

• If you're using yarn install

yarn add --dev @artela/aspect-libs    # Yarn

Usage

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Structure

• Aspect Structure

Join-Points

• VerifyTx
• PreTxExecute
• PreContractCall
• PostContractCall
• PostTxExecute

Operation Interface

• Operation

API references

• sys
• sys.hostApi
• sys.aspect
• ethereum
• helper

Versions

The Version in the subgraph manifest specifies the mapping Aspect-lib version which is run by Artela Blockchain Node for a given Version.

Version	Artela Version	Release notes
0.0.33	v0.4.7-rc6	The first beta is available, where the Transaction Level Aspect feature has been released