Merge pull request #4 from script-logic/feature/database-implementation

feat: database implementation

Author: script-logic

.dockerignore

@@ -48,6 +48,8 @@ env/
 .env
 .env.local
 .env.*.local
+scan_project.py
+project_scan_output.txt
 
 # IDEs
 .vscode/

.env.example

@@ -19,7 +19,7 @@ REDIS__DB=0
 APPLICATION__DEBUG=False
 APPLICATION__API_V1_PREFIX=/api/v1
 APPLICATION__PROJECT_NAME=Deribit Price Tracker API
-APPLICATION__VERSION=0.2.0
+APPLICATION__VERSION=0.3.0
 
 # CORS Configuration
 CORS__ORIGINS=["http://localhost:8000","http://127.0.0.1:8000"]

.gitignore

@@ -12,6 +12,8 @@ credentials/
 # pytest
 .pytest_cache/
 .cache/
+scan_project.py
+project_scan_output.txt
 
 # coverage
 .coverage

.secrets.baseline

@@ -90,6 +90,10 @@
     {
       "path": "detect_secrets.filters.allowlist.is_line_allowlisted"
     },
+    {
+      "path": "detect_secrets.filters.common.is_baseline_file",
+      "filename": ".secrets.baseline"
+    },
     {
       "path": "detect_secrets.filters.common.is_ignored_due_to_verification_policies",
       "min_level": 2
@@ -139,6 +143,24 @@
         "line_number": 103
       }
     ],
+    "alembic.ini": [
+      {
+        "type": "Basic Auth Credentials",
+        "filename": "alembic.ini",
+        "hashed_secret": "5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8",
+        "is_verified": false,
+        "line_number": 89
+      }
+    ],
+    "alembic\\versions\\b1494e573776_create_price_ticks_table.py": [
+      {
+        "type": "Hex High Entropy String",
+        "filename": "alembic\\versions\\b1494e573776_create_price_ticks_table.py",
+        "hashed_secret": "365aef3fd6fec3397a72177f4930f4bb20510b88",
+        "is_verified": false,
+        "line_number": 16
+      }
+    ],
     "app\\core\\config.py": [
       {
         "type": "Basic Auth Credentials",
@@ -207,5 +229,5 @@
       }
     ]
   },
-  "generated_at": "2026-01-23T18:44:37Z"
+  "generated_at": "2026-01-24T19:55:12Z"
 }

alembic.ini

@@ -0,0 +1,149 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts.
+# this is typically a path given in POSIX (e.g. forward slashes)
+# format, relative to the token %(here)s which refers to the location of this
+# ini file
+script_location = %(here)s/alembic
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+# Or organize into date-based subdirectories (requires recursive_version_locations = true)
+# file_template = %%(year)d/%%(month).2d/%%(day).2d_%%(hour).2d%%(minute).2d_%%(second).2d_%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.  for multiple paths, the path separator
+# is defined by "path_separator" below.
+prepend_sys_path = .
+
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the tzdata library which can be installed by adding
+# `alembic[tz]` to the pip requirements.
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to <script_location>/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "path_separator"
+# below.
+# version_locations = %(here)s/bar:%(here)s/bat:%(here)s/alembic/versions
+
+# path_separator; This indicates what character is used to split lists of file
+# paths, including version_locations and prepend_sys_path within configparser
+# files such as alembic.ini.
+# The default rendered in new alembic.ini files is "os", which uses os.pathsep
+# to provide os-dependent path splitting.
+#
+# Note that in order to support legacy alembic.ini files, this default does NOT
+# take place if path_separator is not present in alembic.ini.  If this
+# option is omitted entirely, fallback logic is as follows:
+#
+# 1. Parsing of the version_locations option falls back to using the legacy
+#    "version_path_separator" key, which if absent then falls back to the legacy
+#    behavior of splitting on spaces and/or commas.
+# 2. Parsing of the prepend_sys_path option falls back to the legacy
+#    behavior of splitting on spaces, commas, or colons.
+#
+# Valid values for path_separator are:
+#
+# path_separator = :
+# path_separator = ;
+# path_separator = space
+# path_separator = newline
+#
+# Use os.pathsep. Default configuration used for new projects.
+path_separator = os
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# database URL.  This is consumed by the user-maintained env.py script only.
+# other means of configuring database URLs may be customized within the env.py
+# file.
+sqlalchemy.url = postgresql://user:password@host:port/dbname
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the module runner, against the "ruff" module
+# hooks = ruff
+# ruff.type = module
+# ruff.module = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Alternatively, use the exec runner to execute a binary found on your PATH
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration.  This is also consumed by the user-maintained
+# env.py script only.
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

alembic/README

@@ -0,0 +1 @@
+Generic single-database configuration.

alembic/env.py

@@ -0,0 +1,80 @@
+"""
+Alembic environment configuration using synchronous engine.
+"""
+
+import sys
+from logging.config import fileConfig
+from pathlib import Path
+
+from sqlalchemy import engine_from_config, pool
+
+from alembic import context  # type: ignore
+
+sys.path.append(str(Path(__file__).parent.parent))
+
+from app.core import settings
+from app.database import Base
+from app.database.models import PriceTick  # noqa
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+db_password = settings.database.password.get_secret_value()
+db_host = settings.database.host
+config.set_main_option(
+    "sqlalchemy.url",
+    f"postgresql://{settings.database.user}:{db_password}@"
+    f"{db_host}:{settings.database.port}/{settings.database.db}",
+)
+
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    url = config.get_main_option("sqlalchemy.url")
+
+    if url and url.startswith("postgresql+asyncpg://"):
+        url = url.replace("postgresql+asyncpg://", "postgresql://")
+
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    configuration = config.get_section(config.config_ini_section, {})
+
+    url = configuration.get("sqlalchemy.url", "")
+    if url.startswith("postgresql+asyncpg://"):
+        configuration["sqlalchemy.url"] = url.replace(
+            "postgresql+asyncpg://", "postgresql://"
+        )
+
+    connectable = engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/script.py.mako

@@ -0,0 +1,28 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

alembic/versions/b1494e573776_create_price_ticks_table.py

@@ -0,0 +1,60 @@
+"""Create price_ticks table
+
+Revision ID: b1494e573776
+Revises:
+Create Date: 2026-01-24 21:27:51.504960
+
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+
+from alembic import op  # type: ignore
+
+# revision identifiers, used by Alembic.
+revision: str = "b1494e573776"
+down_revision: str | Sequence[str] | None = None
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "price_ticks",
+        sa.Column("id", sa.BigInteger(), nullable=False),
+        sa.Column("ticker", sa.String(length=20), nullable=False),
+        sa.Column("price", sa.Float(), nullable=False),
+        sa.Column("timestamp", sa.BigInteger(), nullable=False),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.text("now()"),
+            nullable=False,
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(
+        op.f("ix_price_ticks_ticker"),
+        "price_ticks",
+        ["ticker"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_price_ticks_timestamp"),
+        "price_ticks",
+        ["timestamp"],
+        unique=False,
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f("ix_price_ticks_timestamp"), table_name="price_ticks")
+    op.drop_index(op.f("ix_price_ticks_ticker"), table_name="price_ticks")
+    op.drop_table("price_ticks")
+    # ### end Alembic commands ###