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https://github.com/0glabs/0g-storage-node.git
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72 lines
2.9 KiB
Markdown
72 lines
2.9 KiB
Markdown
# Introduction
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## Overview
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0G Storage is the storage layer for the ZeroGravity data availability (DA) system. The 0G Storage layer holds three important features:
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* Built-in - It is natively built into the ZeroGravity DA system for data storage and retrieval.
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* General purpose - It is designed to support atomic transactions, mutable kv stores as well as archive log systems to enable a wide range of applications with various data types.
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* Incentive - Instead of being just a decentralized database, 0G Storage introduces PoRA mining algorithm to incentivize storage network participants.
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## Integration
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We provide a [SDK](https://github.com/0glabs/0g-ts-sdk) for users to easily integrate 0G Storage in their applications with the following features:
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* File Merkle Tree Class
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* Flow Contract Types
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* RPC methods support
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* File upload
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* Support browser environment
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* Tests for different environments (In Progress)
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* File download (In Progress)
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## Deployment
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Please refer to [Deployment](run.md) page for detailed steps to compile and start a 0G Storage node.
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## Test
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### Prerequisites
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* Required python version: 3.8, 3.9, 3.10, higher version is not guaranteed (e.g. failed to install `pysha3`).
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* Install dependencies under root folder: `pip3 install -r requirements.txt`
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### Dependencies
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Python test framework will launch blockchain fullnodes at local for storage node to interact with. There are 2 kinds of fullnodes supported:
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* Conflux eSpace node (by default).
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* BSC node (geth).
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For Conflux eSpace node, the test framework will automatically compile the binary at runtime, and copy the binary to `tests/tmp` folder. For BSC node, the test framework will automatically download the latest version binary from [github](https://github.com/bnb-chain/bsc/releases) to `tests/tmp` folder.
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Alternatively, you could also manually copy specific version binaries (conflux or geth) to the `tests/tmp` folder. Note, do **NOT** copy released conflux binary on github, since block height of some CIPs are hardcoded.
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For testing, it's also dependent on the following repos:
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* [0G Storage Contract](https://github.com/0glabs/0g-storage-contracts): It essentially provides two abi interfaces for 0G Storage Node to interact with the on-chain contracts.
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* ZgsFlow: It contains apis to submit chunk data.
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* PoraMine: It contains apis to submit PoRA answers.
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* [0G Storage Client](https://github.com/0glabs/0g-storage-client): It is used to interact with certain 0G Storage Nodes to upload/download files.
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### Run Tests
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Go to the `tests` folder and run the following command to run all tests:
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```
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python test_all.py
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```
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or, run any single test, e.g.
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```
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python sync_test.py
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```
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### Troubleshooting
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1. Test failed due to blockchain full node rpc inaccessible.
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* Traceback: `node.wait_for_rpc_connection()`
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* Solution: unset the `http_proxy` and `https_proxy` environment variables if configured.
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