Metadata-Version: 2.4
Name: somnia-data-streams-sdk
Version: 0.9.5.1
Summary: A Python SDK for Somnia data streams with first class reactivity support
Project-URL: Homepage, https://github.com/nickyharpor/somnia_data_streams_sdk
Project-URL: Documentation, https://github.com/nickyharpor/somnia_data_streams_sdk
Project-URL: Repository, https://github.com/nickyharpor/somnia_data_streams_sdk
Author: Nicky Harpor
License: MIT License
        
        Copyright (c) 2024 Somnia Foundation
        
        Permission is hereby granted, free of charge, to any person obtaining a copy
        of this software and associated documentation files (the "Software"), to deal
        in the Software without restriction, including without limitation the rights
        to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
        copies of the Software, and to permit persons to whom the Software is
        furnished to do so, subject to the following conditions:
        
        The above copyright notice and this permission notice shall be included in all
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        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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        SOFTWARE.
License-File: LICENSE
Keywords: blockchain,somnia,streams,web3
Classifier: Development Status :: 4 - Beta
Classifier: Intended Audience :: Developers
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Requires-Python: >=3.8
Requires-Dist: eth-abi>=4.0.0
Requires-Dist: eth-utils>=2.0.0
Requires-Dist: typing-extensions>=4.0.0
Requires-Dist: web3>=6.0.0
Requires-Dist: websockets>=11.0
Provides-Extra: dev
Requires-Dist: black>=23.0.0; extra == 'dev'
Requires-Dist: mypy>=1.0.0; extra == 'dev'
Requires-Dist: pylint>=2.0.0; extra == 'dev'
Requires-Dist: pytest-asyncio>=0.21.0; extra == 'dev'
Requires-Dist: pytest>=8.3.5; extra == 'dev'
Description-Content-Type: text/markdown

# Somnia Data Streams Python SDK

The Somnia Data Streams Python SDK enables streaming data on-chain, integrated with off-chain reactivity to unlock new paradigms in the blockchain ecosystem.


## Features

- Easy and intuitive interface and flow
- Consistent with Somnia Data Streams JS/TS SDK
- Schema encoding and decoding for structured data
- Type-safe API with comprehensive type definitions
- Asynchronized architecture for better CPU utilization on high load
- Extensive unit tests and integration tests


## Installation

```bash
pip install somnia-data-streams-sdk
```


## Quick Start

### Initialize the SDK

```python
from somnia_data_streams_sdk import SDK, SOMNIA_TESTNET

# Read-only access (no private key needed)
sdk = SDK.create_for_chain(SOMNIA_TESTNET["id"])

# With write access (provide private key for transaction signing)
sdk = SDK.create_for_chain(SOMNIA_TESTNET["id"], private_key="0x...")
```

### Get All Registered Schemas

```python
schemas = await sdk.streams.get_all_schemas()
for i, schema in enumerate(schemas):
    print(f"{i+1}. {schema}")
```

### Compute Schema ID

```python
test_schema = "uint256 balance, address owner"
schema_id = await sdk.streams.compute_schema_id(test_schema)
print(f"\nSchema ID for '{test_schema}': {schema_id}")
```

### Check if Schema is Registered

```python
is_registered = await sdk.streams.is_data_schema_registered(schema_id)
print(f"Schema registered: {is_registered}")
```

### Schema Encoding/Decoding

```python
encoder = SchemaEncoder("uint256 balance, address owner")
encoded = encoder.encode_data([
    SchemaItem(name="balance", type="uint256", value=666),
    SchemaItem(name="owner", type="address", value="0x7e5f4552091a69125d5dfcb7b8c2659029395bdf"),
])
print(f"Encoded Schema: {encoded}")

decoded = encoder.decode_data(encoded)
print("Decoded Schema:")
for item in decoded:
    print(f"  {item.name} ({item.type}): {item.value.value}")
```

### Register a Schema (Consumes Gas)

```python
registrations = [
    DataSchemaRegistration(
        id="your-unique-id-here-otherwise-wont-register",
        schema=test_schema,
        parent_schema_id=None
    )
]
tx_hash = await sdk.streams.register_data_schemas(registrations)
if tx_hash and isinstance(tx_hash, str) and tx_hash.startswith("0x"):
    print(f"Schema registered! TX: {tx_hash}")
else:
    print("Schema already registered or registration error")
```

### Publish Data

```python
data_id = to_hex(keccak(text="your-unique-id-here-for-this-data"))
data_streams = [
    DataStream(
        id=data_id,
        schema_id=schema_id,
        data=encoded,
    )
]
tx_hash = await sdk.streams.set(data_streams)
if tx_hash:
    print(f"Data published! TX: {tx_hash}")
else:
    print("Data publishing failed")
```

### Read Data

```python
data = await sdk.streams.get_all_publisher_data_for_schema(
    schema_id=schema_id,
    publisher=sdk.streams.web3_client.client.account.address,
)
    
if data:
    print(f"Found {len(data)} data points")
    if isinstance(data[0], list):  # Decoded data
        for i, decoded_items in enumerate(data):
            print(f"\nData point {i+1}:")
            for item in decoded_items:
                print(f"  {item.name}: {item.value.value}")
    else:  # Raw data
        print("Raw data (schema not public):", data)
```


## API Reference

### Main Classes

- `SDK` - Main SDK class for interacting with Somnia Data Streams
- `SchemaEncoder` - Encode and decode data schemas

### Chain Configuration

- `SOMNIA_TESTNET` - Testnet configuration (Chain ID: 50312)
- `SOMNIA_MAINNET` - Mainnet configuration (Chain ID: 5031)
- `get_chain_config(chain_id)` - Get chain configuration by ID
- `get_default_rpc_url(chain_id)` - Get default RPC URL for a chain

### Frequently Used Types

- `SubscriptionInitParams`
- `SchemaItem`, `SchemaDecodedItem`
- `EventParameter`, `EventSchema`, `EventStream`
- `DataStream`, `DataSchemaRegistration`


## Contribution Guide

If it's bug fix or code improvement (i.e. not a new feature), please make sure your code passes all tests before submitting a PR.

```bash
pytest -v -s
```

If it's a new feature, don't forget to write unit tests and integration tests for it.