3a29a346a9
* Created FastAPI application structure * Added database models for assets, exchanges, markets, and rates * Integrated with CoinCap API * Implemented REST API endpoints * Setup SQLite persistence with Alembic migrations * Added comprehensive documentation Generated with BackendIM... (backend.im)
140 lines
6.5 KiB
Python
140 lines
6.5 KiB
Python
"""Initial migration
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Revision ID: 01_initial_migration
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Revises:
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Create Date: 2025-05-14
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision: str = '01_initial_migration'
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down_revision: Union[str, None] = None
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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# Create Asset table
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op.create_table(
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'assets',
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sa.Column('id', sa.String(), nullable=False),
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sa.Column('rank', sa.Integer(), nullable=True),
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sa.Column('symbol', sa.String(), nullable=True),
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sa.Column('name', sa.String(), nullable=True),
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sa.Column('supply', sa.Float(), nullable=True),
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sa.Column('max_supply', sa.Float(), nullable=True),
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sa.Column('market_cap_usd', sa.Float(), nullable=True),
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sa.Column('volume_usd_24hr', sa.Float(), nullable=True),
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sa.Column('price_usd', sa.Float(), nullable=True),
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sa.Column('change_percent_24hr', sa.Float(), nullable=True),
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sa.Column('vwap_24hr', sa.Float(), nullable=True),
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sa.Column('explorer', sa.String(), nullable=True),
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sa.Column('last_updated', sa.DateTime(), nullable=True),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_assets_id'), 'assets', ['id'], unique=False)
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op.create_index(op.f('ix_assets_name'), 'assets', ['name'], unique=False)
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op.create_index(op.f('ix_assets_symbol'), 'assets', ['symbol'], unique=False)
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# Create AssetPriceHistory table
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op.create_table(
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'asset_price_history',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('asset_id', sa.String(), nullable=True),
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sa.Column('price_usd', sa.Float(), nullable=True),
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sa.Column('timestamp', sa.DateTime(), nullable=True),
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sa.ForeignKeyConstraint(['asset_id'], ['assets.id'], ondelete='CASCADE'),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_asset_price_history_asset_id'), 'asset_price_history', ['asset_id'], unique=False)
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op.create_index(op.f('ix_asset_price_history_id'), 'asset_price_history', ['id'], unique=False)
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op.create_index(op.f('ix_asset_price_history_timestamp'), 'asset_price_history', ['timestamp'], unique=False)
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# Create Exchange table
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op.create_table(
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'exchanges',
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sa.Column('exchange_id', sa.String(), nullable=False),
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sa.Column('name', sa.String(), nullable=True),
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sa.Column('rank', sa.Integer(), nullable=True),
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sa.Column('percent_total_volume', sa.Float(), nullable=True),
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sa.Column('volume_usd', sa.Float(), nullable=True),
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sa.Column('trading_pairs', sa.Integer(), nullable=True),
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sa.Column('socket', sa.Boolean(), nullable=True),
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sa.Column('exchange_url', sa.String(), nullable=True),
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sa.Column('updated_timestamp', sa.Integer(), nullable=True),
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sa.Column('last_updated', sa.DateTime(), nullable=True),
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sa.PrimaryKeyConstraint('exchange_id')
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)
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op.create_index(op.f('ix_exchanges_exchange_id'), 'exchanges', ['exchange_id'], unique=False)
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op.create_index(op.f('ix_exchanges_name'), 'exchanges', ['name'], unique=False)
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# Create Market table
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op.create_table(
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'markets',
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sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
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sa.Column('exchange_id', sa.String(), nullable=True),
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sa.Column('rank', sa.Integer(), nullable=True),
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sa.Column('base_symbol', sa.String(), nullable=True),
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sa.Column('base_id', sa.String(), nullable=True),
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sa.Column('quote_symbol', sa.String(), nullable=True),
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sa.Column('quote_id', sa.String(), nullable=True),
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sa.Column('price_quote', sa.Float(), nullable=True),
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sa.Column('price_usd', sa.Float(), nullable=True),
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sa.Column('volume_usd_24hr', sa.Float(), nullable=True),
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sa.Column('percent_exchange_volume', sa.Float(), nullable=True),
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sa.Column('trades_count_24hr', sa.Integer(), nullable=True),
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sa.Column('updated_timestamp', sa.Integer(), nullable=True),
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sa.Column('last_updated', sa.DateTime(), nullable=True),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_markets_base_id'), 'markets', ['base_id'], unique=False)
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op.create_index(op.f('ix_markets_base_symbol'), 'markets', ['base_symbol'], unique=False)
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op.create_index(op.f('ix_markets_exchange_id'), 'markets', ['exchange_id'], unique=False)
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op.create_index(op.f('ix_markets_quote_id'), 'markets', ['quote_id'], unique=False)
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op.create_index(op.f('ix_markets_quote_symbol'), 'markets', ['quote_symbol'], unique=False)
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# Create Rate table
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op.create_table(
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'rates',
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sa.Column('id', sa.String(), nullable=False),
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sa.Column('symbol', sa.String(), nullable=True),
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sa.Column('currency_symbol', sa.String(), nullable=True),
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sa.Column('type', sa.String(), nullable=True),
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sa.Column('rate_usd', sa.Float(), nullable=True),
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sa.Column('last_updated', sa.DateTime(), nullable=True),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_rates_id'), 'rates', ['id'], unique=False)
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op.create_index(op.f('ix_rates_symbol'), 'rates', ['symbol'], unique=False)
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def downgrade() -> None:
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op.drop_index(op.f('ix_rates_symbol'), table_name='rates')
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op.drop_index(op.f('ix_rates_id'), table_name='rates')
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op.drop_table('rates')
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op.drop_index(op.f('ix_markets_quote_symbol'), table_name='markets')
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op.drop_index(op.f('ix_markets_quote_id'), table_name='markets')
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op.drop_index(op.f('ix_markets_exchange_id'), table_name='markets')
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op.drop_index(op.f('ix_markets_base_symbol'), table_name='markets')
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op.drop_index(op.f('ix_markets_base_id'), table_name='markets')
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op.drop_table('markets')
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op.drop_index(op.f('ix_exchanges_name'), table_name='exchanges')
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op.drop_index(op.f('ix_exchanges_exchange_id'), table_name='exchanges')
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op.drop_table('exchanges')
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op.drop_index(op.f('ix_asset_price_history_timestamp'), table_name='asset_price_history')
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op.drop_index(op.f('ix_asset_price_history_id'), table_name='asset_price_history')
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op.drop_index(op.f('ix_asset_price_history_asset_id'), table_name='asset_price_history')
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op.drop_table('asset_price_history')
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op.drop_index(op.f('ix_assets_symbol'), table_name='assets')
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op.drop_index(op.f('ix_assets_name'), table_name='assets')
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op.drop_index(op.f('ix_assets_id'), table_name='assets')
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op.drop_table('assets') |