diff --git a/Procfile b/Procfile
new file mode 100644
index 000000000..62e430aca
--- /dev/null
+++ b/Procfile
@@ -0,0 +1 @@
+web: gunicorn 'app:create_app()'
\ No newline at end of file
diff --git a/app/__init__.py b/app/__init__.py
index 70b4cabfe..b054b8d25 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -1,7 +1,36 @@
 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__)
 
+    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')
+
+    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+    app.config['JSON_SORT_KEYS'] = False 
+    app.url_map.strict_slashes = False
+        
+    db.init_app(app)
+    migrate.init_app(app, db)
+
+    from app.models.planet import Planet
+    from app.models.moon import Moon
+
+    from .planet_routes import planets_bp
+    app.register_blueprint(planets_bp)
+
+    from .moon_routes import moon_bp
+    app.register_blueprint(moon_bp)
+
     return app
diff --git a/app/models/__init__.py b/app/models/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/app/models/moon.py b/app/models/moon.py
new file mode 100644
index 000000000..b403d8fab
--- /dev/null
+++ b/app/models/moon.py
@@ -0,0 +1,31 @@
+from app import db
+class Moon(db.Model):
+    id = db.Column(db.Integer,primary_key=True, autoincrement=True)
+    name = db.Column(db.String())
+    size = db.Column(db.Integer())
+    description = db.Column(db.String())
+    distance_from_planet = db.Column(db.Integer())
+    planet_id = db.Column(db.Integer(), db.ForeignKey('planet.id'))
+    planet = db.relationship("Planet", back_populates="moons")
+
+    def to_dict(self):
+        moon_as_dict = {}
+        moon_as_dict["id"] = self.id
+        moon_as_dict["name"] = self.name
+        moon_as_dict["size"] = self.size
+        moon_as_dict["description"] = self.description
+        moon_as_dict["distance_from_planet"] = self.distance_from_planet
+        moon_as_dict["planet_id"] = self.planet_id
+        
+        return moon_as_dict
+
+    @classmethod
+    def from_dict(cls, moon_data):
+        new_moon = Moon(
+            name=moon_data["name"],
+            description=moon_data["description"],
+            size=moon_data["size"],
+            distance_from_planet=moon_data["distance_from_planet"],
+            planet_id=moon_data["planet_id"]
+                        )
+        return new_moon
diff --git a/app/models/planet.py b/app/models/planet.py
new file mode 100644
index 000000000..d0bf79fd7
--- /dev/null
+++ b/app/models/planet.py
@@ -0,0 +1,33 @@
+from app import db
+class Planet(db.Model):
+    id = db.Column(db.Integer,primary_key=True, autoincrement=True)
+    name = db.Column(db.String())
+    description = db.Column(db.String())
+    orbit_days = db.Column(db.Integer())
+    num_moons = db.Column(db.Integer())
+    moons = db.relationship("Moon", back_populates="planet")
+
+    def to_dict(self):
+        planet_as_dict = {}
+        planet_as_dict["id"] = self.id
+        planet_as_dict["name"] = self.name
+        planet_as_dict["description"] = self.description
+        planet_as_dict["orbit_days"] = self.orbit_days
+        planet_as_dict["num_moons"] = self.num_moons
+        moons_list = []
+        for moon in self.moons:
+            moons_list.append(moon.to_dict())
+        planet_as_dict["moons"] = moons_list
+
+        return planet_as_dict
+
+    @classmethod
+    def from_dict(cls, planet_data):
+        new_planet = Planet(
+                        name=planet_data["name"],
+                        description=planet_data["description"],
+                        orbit_days=planet_data["orbit_days"],
+                        num_moons=planet_data["num_moons"],
+                        
+                        )
+        return new_planet
diff --git a/app/moon_routes.py b/app/moon_routes.py
new file mode 100644
index 000000000..a475e7815
--- /dev/null
+++ b/app/moon_routes.py
@@ -0,0 +1,60 @@
+from app import db
+from app.models.moon import Moon
+from app.models.planet import Planet
+from app.planet_routes import validate_model
+from flask import Blueprint, jsonify, abort, make_response, request
+
+moon_bp = Blueprint("moon_bp", __name__, url_prefix="/moons")
+
+@moon_bp.route("", methods=["POST"])
+def create_one_moon():
+    request_body = request.get_json()
+    new_moon = Moon.from_dict(request_body)
+    
+    db.session.add(new_moon)
+    db.session.commit()
+
+    return make_response(jsonify(f"Moon {new_moon.name} successfully created"), 201)
+
+@moon_bp.route("", methods=["GET"])
+def read_one_moon_by_name():
+    
+    moons_query = Moon.query
+    name_query = request.args.get("name")
+    if name_query:
+        moons_query = moons_query.filter(Moon.name.ilike(f"%{name_query}%"))
+    moons = moons_query.all()
+    moons_response = []
+    for moon in moons:
+        moons_response.append(moon.to_dict())
+    return jsonify(moons_response)
+
+@moon_bp.route("/<moon_id>", methods=["GET"])
+def read_one_moon_by_id(moon_id):
+
+    moon = validate_model(Moon, moon_id)
+    return moon.to_dict()
+
+@moon_bp.route("", methods=["GET"])
+def read_all_moons():
+    
+    moons = Moon.query.all()
+
+    moons_response = []
+    for moon in moons:
+        moons_response.append(moon.to_dict())
+    return jsonify(moons_response)
+
+
+@moon_bp.route("/<moon_id>", methods=["DELETE"])
+def delete_moon_by_id(moon_id):
+    moon = validate_model(Moon, moon_id)
+    planet = validate_model(Planet, moon.planet_id)
+
+    db.session.delete(moon)
+    planet.num_moons = len(planet.moons)
+    db.session.commit()
+
+    return make_response(jsonify(f"Moon {moon.name} successfully deleted"))
+
+
diff --git a/app/planet_routes.py b/app/planet_routes.py
new file mode 100644
index 000000000..41b49d366
--- /dev/null
+++ b/app/planet_routes.py
@@ -0,0 +1,106 @@
+from app import db
+from app.models.planet import Planet
+from app.models.moon import Moon
+from flask import Blueprint, jsonify, abort, make_response, request
+
+planets_bp = Blueprint("planets_bp", __name__,url_prefix="/planets")
+
+def validate_model(cls, model_id):
+    try:
+        model_id = int(model_id)
+    except:
+        abort(make_response({"message":f"{cls.__name__} {model_id} invalid"}, 400))
+
+    model = cls.query.get(model_id)
+
+    if not model:
+        abort(make_response({"message":f"{cls.__name__} {model_id} not found"}, 404))
+
+    return model
+
+@planets_bp.route("", methods=["POST"])
+def create_planet():
+    request_body = request.get_json()
+    if "name" not in request_body:
+        return make_response("Invalid Request", 400)
+
+    new_planet = Planet.from_dict(request_body)
+    db.session.add(new_planet)
+    db.session.commit()
+    return make_response(jsonify(f"Planet {new_planet.name} successfully created"), 201)
+
+@planets_bp.route("", methods=["GET"])
+def read_all_planets():
+    planets_response = []
+    planet_query = Planet.query
+
+    name_query = request.args.get("name")
+    if name_query:
+        planet_query = planet_query.filter(Planet.name.ilike(f"%{name_query}%"))
+        
+    sort_query = request.args.get("sort")
+    if sort_query == "desc":
+        planet_query = planet_query.order_by(Planet.name.desc())
+    else: 
+        planet_query = planet_query.order_by(Planet.name)
+    
+        
+    planets = planet_query.all()
+        
+    for planet in planets:
+        planets_response.append(planet.to_dict())
+    return jsonify(planets_response)
+
+@planets_bp.route("/<planet_id>", methods=["GET"])
+def read_one_planet(planet_id):
+    planet = validate_model(Planet, planet_id)
+    return planet.to_dict()
+
+@planets_bp.route("/<planet_id>", methods=["PUT"])
+def update_planet(planet_id):
+    planet = validate_model(Planet, planet_id)
+
+    request_body = request.get_json()
+
+    planet.name = request_body["name"]
+    planet.description = request_body["description"]
+    planet.orbit_days = request_body["orbit_days"]
+    planet.num_moons = request_body["num_moons"]
+
+    db.session.commit()
+
+    return make_response(jsonify(f"Planet #{planet.id} successfully updated"))
+
+@planets_bp.route("/<planet_id>", methods=["DELETE"])
+def delete_planet(planet_id):
+    planet = validate_model(Planet, planet_id)
+
+    db.session.delete(planet)
+    db.session.commit()
+
+    return make_response(jsonify(f"Planet #{planet.id} successfully deleted"))
+
+@planets_bp.route("/<planet_id>/moons", methods=["POST"])
+def create_one_moon_with_planet_id(planet_id):
+
+    planet = validate_model(Planet, planet_id)
+
+    request_body = request.get_json()
+    new_moon = Moon.from_dict(request_body)
+    new_moon.planet = planet
+    db.session.add(new_moon)
+    planet.num_moons = len(planet.moons)
+    db.session.commit()
+
+    return make_response(jsonify(f"Moon {new_moon.name} by {new_moon.planet.name} successfully created"), 201)
+
+@planets_bp.route("/<planet_id>/moons", methods=["GET"])
+def read_all_moons_from_a_planet(planet_id):
+
+    planet = validate_model(Planet, planet_id)
+
+    moons_response = []
+    for moon in planet.moons:
+        moons_response.append(moon.to_dict())
+        
+    return jsonify(moons_response)
\ No newline at end of file
diff --git a/app/planet_seed.sql b/app/planet_seed.sql
new file mode 100644
index 000000000..bf84fd042
--- /dev/null
+++ b/app/planet_seed.sql
@@ -0,0 +1,13 @@
+ALTER SEQUENCE planet_id_seq RESTART WITH 1;
+ALTER SEQUENCE moon_id_seq RESTART WITH 1;
+INSERT INTO planet VALUES (DEFAULT,'Mercury', 'Mercury is the closest planet to the Sun.', 88, 0);
+INSERT INTO planet VALUES (DEFAULT,'Venus', 'Venus is the hottest planet in the solar system.', 225 ,0);
+INSERT INTO planet VALUES (DEFAULT,'Earth', 'Our home planet.', 365,1);
+INSERT INTO planet VALUES (DEFAULT,'Mars', 'Also known as Red planet.', 687, 2);
+INSERT INTO planet VALUES (DEFAULT,'Jupiter','Largest planet in the solar system.', 4333, 80);
+INSERT INTO planet VALUES (DEFAULT,'Saturn', 'Only planet to have rings made of ice and rock.', 10759, 83);
+INSERT INTO planet VALUES (DEFAULT,'Uranus', 'Only planet with a 97 degree tilted axis.', 30687, 27);
+INSERT INTO planet VALUES (DEFAULT,'Neptune', 'Blue ice giant',60190, 14);
+INSERT INTO moon VALUES (DEFAULT,'The Moon', 2159, 'The moon of Earth.', 238855, 3);
+INSERT INTO moon VALUES (DEFAULT,'Deimos', 428, 'The smaller of the two moons of Mars.', 14580, 4);
+INSERT INTO moon VALUES (DEFAULT,'The Phobos', 2618, 'The larger moon of Mars.', 3700, 4);
\ No newline at end of file
diff --git a/app/routes.py b/app/routes.py
deleted file mode 100644
index 8e9dfe684..000000000
--- a/app/routes.py
+++ /dev/null
@@ -1,2 +0,0 @@
-from flask import Blueprint
-
diff --git a/migrations/README b/migrations/README
new file mode 100644
index 000000000..98e4f9c44
--- /dev/null
+++ b/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/migrations/alembic.ini b/migrations/alembic.ini
new file mode 100644
index 000000000..f8ed4801f
--- /dev/null
+++ b/migrations/alembic.ini
@@ -0,0 +1,45 @@
+# 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
+
+[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
+
+[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..8b3fb3353
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,96 @@
+from __future__ import with_statement
+
+import logging
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+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.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 = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix='sqlalchemy.',
+        poolclass=pool.NullPool,
+    )
+
+    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/ff811225ddeb_.py b/migrations/versions/ff811225ddeb_.py
new file mode 100644
index 000000000..c468ce37f
--- /dev/null
+++ b/migrations/versions/ff811225ddeb_.py
@@ -0,0 +1,46 @@
+"""empty message
+
+Revision ID: ff811225ddeb
+Revises: 
+Create Date: 2023-01-05 11:14:55.048062
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'ff811225ddeb'
+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=True),
+    sa.Column('description', sa.String(), nullable=True),
+    sa.Column('orbit_days', sa.Integer(), nullable=True),
+    sa.Column('num_moons', sa.Integer(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('moon',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.String(), nullable=True),
+    sa.Column('size', sa.Integer(), nullable=True),
+    sa.Column('description', sa.String(), nullable=True),
+    sa.Column('distance_from_planet', sa.Integer(), nullable=True),
+    sa.Column('planet_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['planet_id'], ['planet.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('moon')
+    op.drop_table('planet')
+    # ### end Alembic commands ###
diff --git a/requirements.txt b/requirements.txt
index fba2b3e38..3e19aa0b1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,18 +1,25 @@
 alembic==1.5.4
+attrs==22.2.0
 autopep8==1.5.5
 blinker==1.4
 certifi==2020.12.5
 chardet==4.0.0
 click==7.1.2
+coverage==7.0.3
 Flask==1.1.2
 Flask-Migrate==2.6.0
 Flask-SQLAlchemy==2.4.4
+gunicorn==20.1.0
 idna==2.10
+iniconfig==1.1.1
 itsdangerous==1.1.0
 Jinja2==2.11.3
 Mako==1.1.4
 MarkupSafe==1.1.1
+packaging==22.0
+pluggy==1.0.0
 psycopg2-binary==2.9.4
+py==1.11.0
 pycodestyle==2.6.0
 pytest==7.1.1
 pytest-cov==2.12.1
@@ -23,5 +30,6 @@ requests==2.25.1
 six==1.15.0
 SQLAlchemy==1.3.23
 toml==0.10.2
+tomli==2.0.1
 urllib3==1.26.4
 Werkzeug==1.0.1
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..183f6befd
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,39 @@
+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 one_saved_planet(app):
+    earth = Planet(
+        name="Earth",
+        description="Our home planet.",
+        orbit_days=365,
+        num_moons=1
+    )
+    db.session.add(earth)
+    db.session.commit()
+    db.session.refresh(earth, ["id"])
+    return earth
\ No newline at end of file
diff --git a/tests/test_models.py b/tests/test_models.py
new file mode 100644
index 000000000..78cd95b3b
--- /dev/null
+++ b/tests/test_models.py
@@ -0,0 +1,191 @@
+from app.models.planet import Planet
+from app.models.moon import Moon
+import pytest
+
+def test_to_dict_no_missing_data():
+    # Arrange
+    planet_data = Planet(
+        id = 1,
+        name =  "Mars",
+        description = "Also known as Red planet.",
+        orbit_days = 687,
+        num_moons = 2
+
+    )
+
+    # Act
+    result = planet_data.to_dict()
+
+    # Assert
+    assert len(result) == 6
+    assert result["id"] == 1
+    assert result["name"] == "Mars"
+    assert result["description"] == "Also known as Red planet."
+    assert result["orbit_days"] == 687
+    assert result["num_moons"] == 2
+
+def test_to_dict_missing_id():
+    # Arrange
+    planet_data = Planet(
+        name =  "Mars",
+        description = "Also known as Red planet.",
+        orbit_days = 687,
+        num_moons = 2
+    )
+
+    # Act
+    result = planet_data.to_dict()
+
+    # Assert
+    assert len(result) == 6
+    assert result["id"] == None
+    assert result["name"] == "Mars"
+    assert result["description"] == "Also known as Red planet."
+    assert result["orbit_days"] == 687
+    assert result["num_moons"] == 2
+
+def test_to_dict_missing_name():
+    # Arrange
+    planet_data = Planet(
+        id = 1,
+        description = "Also known as Red planet.",
+        orbit_days = 687,
+        num_moons = 2
+    )
+
+    # Act
+    result = planet_data.to_dict()
+
+    # Assert
+    assert len(result) == 6
+    assert result["id"] == 1
+    assert result["name"] is None
+    assert result["description"] == "Also known as Red planet."
+    assert result["orbit_days"] == 687
+    assert result["num_moons"] == 2
+
+def test_to_dict_missing_description():
+    # Arrange
+    planet_data = Planet(
+        id = 1,
+        name = "Mars",
+        orbit_days = 687,
+        num_moons = 2
+    )
+
+    # Act
+    result = planet_data.to_dict()
+
+    # Assert
+    assert len(result) == 6
+    assert result["id"] == 1
+    assert result["name"] == "Mars"
+    assert result["description"] is None
+    assert result["orbit_days"] == 687
+    assert result["num_moons"] == 2
+
+def test_to_dict_missing_orbit_days():
+    # Arrange
+    planet_data = Planet(
+        id = 1,
+        name = "Mars",
+        description = "Also known as Red planet.",
+        num_moons = 2
+    )
+
+    # Act
+    result = planet_data.to_dict()
+
+    # Assert
+    assert len(result) == 6
+    assert result["id"] == 1
+    assert result["name"] == "Mars"
+    assert result["description"] == "Also known as Red planet."
+    assert result["orbit_days"] is None
+    assert result["num_moons"] == 2
+
+def test_to_dict_missing_num_moons():
+    # Arrange
+    planet_data = Planet(
+        id = 1,
+        name = "Mars",
+        description = "Also known as Red planet.",
+        orbit_days = 687,
+    )
+
+    # Act
+    result = planet_data.to_dict()
+
+    # Assert
+    assert len(result) == 6
+    assert result["id"] == 1
+    assert result["name"] == "Mars"
+    assert result["description"] == "Also known as Red planet."
+    assert result["orbit_days"] == 687
+    assert result["num_moons"] is None
+
+def test_from_dict_returns_planet():
+    # Arrange
+    planet_data = {
+        "name":  "Mars",
+        "description": "Also known as Red planet.",
+        "orbit_days": 687,
+        "num_moons": 2
+    }
+
+    # Act
+    new_planet = Planet.from_dict(planet_data)
+
+    # Assert
+    assert new_planet.name == "Mars"
+    assert new_planet.description == "Also known as Red planet."
+    assert new_planet.orbit_days == 687
+    assert new_planet.num_moons == 2
+
+def test_from_dict_with_no_name():
+    # Arrange
+    planet_data = {
+        "description": "Also known as Red planet.",
+        "orbit_days": 687,
+        "num_moons": 2
+    }
+
+    # Act & Assert
+    with pytest.raises(KeyError, match = 'name'):
+        new_planet = Planet.from_dict(planet_data)
+
+def test_from_dict_with_no_description():
+    # Arrange
+    planet_data = {
+        "name": "Mars",
+        "orbit_days": 687,
+        "num_moons": 2
+    }
+
+    # Act & Assert
+    with pytest.raises(KeyError, match = 'description'):
+        new_planet = Planet.from_dict(planet_data)
+
+def test_from_dict_with_no_orbit_days():
+    # Arrange
+    planet_data = {
+        "name": "Mars",
+        "description": "Also known as Red planet.",
+        "num_moons": 2
+    }
+
+    # Act & Assert
+    with pytest.raises(KeyError, match = 'orbit_days'):
+        new_planet = Planet.from_dict(planet_data)
+
+def test_from_dict_with_no_num_moons():
+    # Arrange
+    planet_data = {
+        "name": "Mars",
+        "description": "Also known as Red planet.",
+        "orbit_days": 687,
+    }
+
+    # Act & Assert
+    with pytest.raises(KeyError, match = 'num_moons'):
+        new_planet = Planet.from_dict(planet_data)
\ No newline at end of file
diff --git a/tests/test_routes.py b/tests/test_routes.py
new file mode 100644
index 000000000..9130df36a
--- /dev/null
+++ b/tests/test_routes.py
@@ -0,0 +1,166 @@
+from werkzeug.exceptions import HTTPException
+from app.models.planet import Planet
+from app.planet_routes import validate_model
+import pytest
+
+def test_read_all_planets_with_no_records(client):
+    # Act
+    response = client.get("/planets")
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 200
+    assert response_body == []
+
+def test_read_one_planet_with_one_record(client, one_saved_planet):
+    # Act
+    response = client.get(f"/planets/{one_saved_planet.id}")
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 200
+    assert response_body["id"] == one_saved_planet.id
+    assert response_body["name"] == one_saved_planet.name
+    assert response_body["description"] == one_saved_planet.description
+    assert response_body["orbit_days"] == one_saved_planet.orbit_days
+    assert response_body["num_moons"] == one_saved_planet.num_moons
+
+def test_read_one_planet_with_no_records(client):
+    # Act
+    response = client.get(f"/planets/1")
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 404
+    assert response_body["message"] == "Planet 1 not found"
+
+def test_read_all_planets_with_one_record(client, one_saved_planet):
+    # Act
+    response = client.get("/planets")
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 200
+    assert len(response_body) == 1
+    assert response_body[0]["id"] == one_saved_planet.id
+    assert response_body[0]["name"] == one_saved_planet.name
+    assert response_body[0]["description"] == one_saved_planet.description
+    assert response_body[0]["orbit_days"] == one_saved_planet.orbit_days
+    assert response_body[0]["num_moons"] == one_saved_planet.num_moons
+
+def test_create_one_planet(client):
+    # Act
+    json_request_body = {
+        "name": "Mars",
+        "description": "Also known as Red planet.",
+        "orbit_days": 687,
+        "num_moons": 2
+    }
+    response = client.post("/planets", json=json_request_body)
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 201
+    assert response_body == "Planet Mars successfully created"
+
+def test_update_planet(client, one_saved_planet):
+    # Arrange
+    json_request_body = {
+        "name": "Mars",
+        "description": "Known as Red planet.",
+        "orbit_days": 687,
+        "num_moons": 2
+    }
+
+    # Act
+    response = client.put("/planets/1", json=json_request_body)
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 200
+    assert response_body == "Planet #1 successfully updated"
+
+def test_update_planet_missing_record(client, one_saved_planet):
+    # Arrange
+    json_request_body = {
+        "name": "Earth",
+        "description": "The best planet.",
+        "orbit_days": 365,
+        "num_moons": 1
+    }
+
+    # Act
+    response = client.put("/planets/2", json=json_request_body)
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 404
+    assert response_body == {"message": "Planet 2 not found"}
+
+def test_update_planet_invalid_id(client, one_saved_planet):
+    # Arrange
+    json_request_body = {
+        "name": "Mars",
+        "description": "Known as Red planet.",
+        "orbit_days": 687,
+        "num_moons": 2
+    }
+
+    # Act
+    response = client.put("/planets/mars", json=json_request_body)
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 400
+    assert response_body == {"message": "Planet mars invalid"}
+
+def test_delete_planet(client, one_saved_planet):
+    # Act
+    response = client.delete("/planets/1")
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 200
+    assert response_body == "Planet #1 successfully deleted"
+
+def test_delete_planet_missing_record(client, one_saved_planet):
+    # Act
+    response = client.delete("/planets/2")
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 404
+    assert response_body == {"message": "Planet 2 not found"}
+
+def test_delete_planet_invalid_id(client, one_saved_planet):
+    # Act
+    response = client.delete("/planets/mars")
+    response_body = response.get_json()
+
+    # Assert
+    assert response.status_code == 400
+    assert response_body == {"message": "Planet mars invalid"}
+
+def test_validate_model(one_saved_planet):
+    # Act
+    result_planet = validate_model(Planet, 1)
+
+    # Assert
+    assert result_planet.id == one_saved_planet.id
+    assert result_planet.description == one_saved_planet.description
+    assert result_planet.orbit_days == one_saved_planet.orbit_days
+    assert result_planet.num_moons == one_saved_planet.num_moons
+
+def test_validate_model_missing_record(one_saved_planet):
+    # Act & Assert
+    # Calling `validate_model` without being invoked by a route will
+    # cause an `HTTPException` when an `abort` statement is reached 
+    with pytest.raises(HTTPException):
+        result_planet = validate_model(Planet, "2")
+    
+def test_validate_model_invalid_id(one_saved_planet):
+    # Act & Assert
+    # Calling `validate_model` without being invoked by a route will
+    # cause an `HTTPException` when an `abort` statement is reached 
+    with pytest.raises(HTTPException):
+        result_planet = validate_model(Planet, "mars")
\ No newline at end of file