diff --git a/app/__init__.py b/app/__init__.py
index 70b4cabfe..f29fb6122 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -1,7 +1,31 @@
 from flask import Flask
+from flask_sqlalchemy import SQLAlchemy
+from flask_migrate import Migrate
+from dotenv import load_dotenv
+import os
 
+db = SQLAlchemy()
+migrate = Migrate()
+load_dotenv()
 
 def create_app(test_config=None):
     app = Flask(__name__)
+    app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
 
-    return app
+    if not test_config:
+        app.config['SQLALCHEMY_DATABASE_URI'] = os.environ.get(
+            "SQLALCHEMY_DATABASE_URI")
+    else:
+        app.config["TESTING"] = True
+        app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get(
+            "SQLALCHEMY_TEST_DATABASE_URI")
+
+    db.init_app(app)
+    migrate.init_app(app, db)
+
+    from app.models.planet import Planet
+
+    from .routes import planets_bp 
+    app.register_blueprint(planets_bp)
+    
+    return app
\ No newline at end of file
diff --git a/app/models/__init__.py b/app/models/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/app/models/planet.py b/app/models/planet.py
new file mode 100644
index 000000000..95b76ba93
--- /dev/null
+++ b/app/models/planet.py
@@ -0,0 +1,23 @@
+from app import db
+
+class Planet(db.Model):
+    id=db.Column(db.Integer, primary_key=True, autoincrement=True)
+    name=db.Column(db.String, nullable=False)
+    description=db.Column(db.String, nullable=False)
+    solar_day=db.Column(db.Float, nullable=False)
+
+    def to_dict(self):
+        return {
+            "id": self.id,
+            "name": self.name,
+            "description": self.description,
+            "solar_day": self.solar_day
+        }
+    
+    @classmethod
+    def from_dict(cls, planet_data):
+        return Planet(
+            name=planet_data["name"],
+            description=planet_data["description"],
+            solar_day=planet_data["solar_day"]
+        )
diff --git a/app/routes.py b/app/routes.py
index 8e9dfe684..5c30c4003 100644
--- a/app/routes.py
+++ b/app/routes.py
@@ -1,2 +1,64 @@
-from flask import Blueprint
+from app import db
+from app.models.planet import Planet
+from flask import Blueprint, jsonify, abort, make_response, request
 
+planets_bp = Blueprint("planets", __name__, url_prefix="/planets")
+
+
+def validate_model(cls, model_id):
+    try:
+        model_id = int(model_id)
+    except:
+        abort(make_response(jsonify({"message":f"{cls.__name__} {model_id} invalid"}), 400))
+    
+    model = cls.query.get(model_id)
+    if not model:
+        abort(make_response(jsonify({"message":f"{cls.__name__} {model_id} not found"}), 404))
+
+    return model
+
+
+
+@planets_bp.route("", methods=["POST"])
+def create_planet():
+    request_body = request.get_json()
+    new_planet = Planet.from_dict(request_body)
+    db.session.add(new_planet)
+    db.session.commit()
+
+    return make_response(jsonify(f"Planet {new_planet.name} created successfully."), 201)
+
+@planets_bp.route("", methods=["GET"])
+def get_all_planets():
+    planets = Planet.query.all()
+    results = [planet.to_dict() for planet in planets]
+    
+    return jsonify(results)
+
+@planets_bp.route("/<planet_id>", methods=["GET"])
+def get_one_planet(planet_id):
+    planet = validate_model(Planet, planet_id)
+
+    return planet.to_dict()
+
+@planets_bp.route("/<planet_id>", methods=["PUT"])
+def replace_planet(planet_id):
+    planet = validate_model(Planet, planet_id)
+    planet_to_update = request.get_json()
+    
+    planet.name = planet_to_update["name"]
+    planet.description = planet_to_update["description"]
+    planet.solar_day = planet_to_update["solar_day"]
+
+    db.session.commit()
+
+    return make_response(jsonify(f"Planet {planet.name} updated successfully."))
+
+
+@planets_bp.route("/<planet_id>", methods=["DELETE"])
+def delete_planet(planet_id):
+    planet_to_delete = validate_model(Planet, planet_id)
+    db.session.delete(planet_to_delete)
+    db.session.commit()
+
+    return make_response(jsonify(f"Planet {planet_to_delete.name} was deleted."))
diff --git a/app/seed.py b/app/seed.py
new file mode 100644
index 000000000..f81bb5940
--- /dev/null
+++ b/app/seed.py
@@ -0,0 +1,11 @@
+# planets = [
+#     Planet(1, "Mercury", "smallest planet", 176.0),
+#     Planet(2, "Venus", "planet of love", 243.0),
+#     Planet(3, "Earth", "home planet", 1.0),
+#     Planet(4, "Mars", "red planet", 1.25),
+#     Planet(5, "Jupiter", "largest planet", 0.42),
+#     Planet(6, "Saturn", "ring planet", .45),
+#     Planet(7, "Uranus", "coldest planet", .71),
+#     Planet(8, "Neptune", "not visible to the naked eye", .67),
+#     Planet(9, "Pluto", "unqualified planet", 6.375)
+#     ]
\ No newline at end of file
diff --git a/migrations/README b/migrations/README
new file mode 100644
index 000000000..0e0484415
--- /dev/null
+++ b/migrations/README
@@ -0,0 +1 @@
+Single-database configuration for Flask.
diff --git a/migrations/alembic.ini b/migrations/alembic.ini
new file mode 100644
index 000000000..ec9d45c26
--- /dev/null
+++ b/migrations/alembic.ini
@@ -0,0 +1,50 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[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
diff --git a/migrations/env.py b/migrations/env.py
new file mode 100644
index 000000000..68feded2a
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,91 @@
+from __future__ import with_statement
+
+import logging
+from logging.config import fileConfig
+
+from flask import current_app
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+config.set_main_option(
+    'sqlalchemy.url',
+    str(current_app.extensions['migrate'].db.get_engine().url).replace(
+        '%', '%%'))
+target_metadata = current_app.extensions['migrate'].db.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=target_metadata, literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    connectable = current_app.extensions['migrate'].db.get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions['migrate'].configure_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/migrations/script.py.mako b/migrations/script.py.mako
new file mode 100644
index 000000000..2c0156303
--- /dev/null
+++ b/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}
diff --git a/migrations/versions/595fe7f869fa_adds_planet_model.py b/migrations/versions/595fe7f869fa_adds_planet_model.py
new file mode 100644
index 000000000..ff034719c
--- /dev/null
+++ b/migrations/versions/595fe7f869fa_adds_planet_model.py
@@ -0,0 +1,34 @@
+"""adds Planet model
+
+Revision ID: 595fe7f869fa
+Revises: 
+Create Date: 2023-04-28 13:12:50.013892
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '595fe7f869fa'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('planet',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.String(), nullable=False),
+    sa.Column('description', sa.String(), nullable=False),
+    sa.Column('solar_day', sa.Float(), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('planet')
+    # ### end Alembic commands ###
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 000000000..6b1e2ef10
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,51 @@
+import pytest
+from app import create_app
+from app import db
+from flask.signals import request_finished
+from app.models.planet import Planet
+
+
+@pytest.fixture
+def app():
+    app = create_app({"TESTING": True})
+
+    @request_finished.connect_via(app)
+    def expire_session(sender, response, **extra):
+        db.session.remove()
+
+    with app.app_context():
+        db.create_all()
+        yield app
+
+    with app.app_context():
+        db.drop_all()
+
+
+@pytest.fixture
+def client(app):
+    return app.test_client()
+
+@pytest.fixture
+def two_planets(app):
+    nebula = Planet(
+        name="Nebula",
+        description="Fake planet for testing purposes",
+        solar_day=420.0
+    )
+
+    gamora = Planet(
+        name="Gamora",
+        description="Do not visit. Not a real place.",
+        solar_day=666.0
+    )
+
+    db.session.add_all([nebula, gamora])
+    db.session.commit()
+
+@pytest.fixture
+def walla_walla():
+    return {
+        "name": "Walla-Walla",
+        "description": "A bad place.",
+        "solar_day": 0.5
+        }
\ No newline at end of file
diff --git a/tests/test_models.py b/tests/test_models.py
new file mode 100644
index 000000000..fa01ccfdc
--- /dev/null
+++ b/tests/test_models.py
@@ -0,0 +1,19 @@
+from app.models.planet import Planet
+
+def test_to_dict_no_missing_data():
+    #arrange
+    test_data = Planet( 
+                    id=1,
+                    name="testopolis",
+                    description="a testing place",
+                    solar_day=300 
+                    )
+    #act
+    result = test_data.to_dict()
+
+    #assert
+    assert len(result) == 4 
+    assert result["id"] == 1
+    assert result["name"] == "testopolis"
+    assert result["solar_day"] == 300
+    assert result["description"] == "a testing place"
diff --git a/tests/test_routes.py b/tests/test_routes.py
new file mode 100644
index 000000000..f9f190dd1
--- /dev/null
+++ b/tests/test_routes.py
@@ -0,0 +1,54 @@
+def test_get_all_planets_with_no_records(client):
+    response = client.get("/planets")
+    response_body = response.get_json()
+
+    assert response.status_code == 200
+    assert response_body == []
+
+def test_get_one_planet(client, two_planets):
+    response = client.get("/planets/1")
+    response_body = response.get_json()
+
+    assert response.status_code == 200
+    assert response_body == {
+        "id": 1,
+        "name": "Nebula",
+        "description": "Fake planet for testing purposes",
+        "solar_day": 420.0
+    }
+
+def test_get_one_planet_no_data_404(client):
+    response = client.get("/planets/1")
+    response_body = response.get_json()
+
+    assert response.status_code == 404
+    assert response_body["message"] == "Planet 1 not found"
+
+def test_get_one_planet_invalid_id_400(client):
+    response = client.get("/planets/WALLA-WALLA")
+    response_body = response.get_json()
+
+    assert response.status_code == 400
+    assert response_body["message"] == "Planet WALLA-WALLA invalid"
+
+def test_post_one_planet(client, walla_walla):
+    response = client.post("/planets", json=walla_walla)
+
+    response_body = response.get_json()
+
+    assert response.status_code == 201
+    assert response_body == "Planet Walla-Walla created successfully."
+
+def test_delete_one_planet(client, two_planets):
+    response = client.delete("/planets/1")
+    response_body = response.get_json()
+
+    assert response.status_code == 200
+    assert response_body == "Planet Nebula was deleted."
+
+def test_update_one_planet(client, two_planets, walla_walla):
+    response = client.put("/planets/1", json=walla_walla)
+    response_body = response.get_json()
+
+    assert response.status_code == 200
+    assert response_body == "Planet Walla-Walla updated successfully."