add contracts

api/requirements.txt

@@ -0,0 +1,40 @@
+attrs==22.2.0
+certifi==2022.12.7
+cffi==1.15.1
+charset-normalizer==2.1.1
+Cheetah3==3.2.6.post1
+click==8.1.3
+clickclick==20.10.2
+connexion==2.14.1
+cryptography==39.0.0
+dateparser==1.1.5
+ecdsa==0.18.0
+Flask==2.2.2
+Flask-Cors==3.0.10
+idna==3.4
+inflection==0.5.1
+itsdangerous==2.1.2
+Jinja2==3.1.2
+jsonschema==4.17.3
+loguru==0.6.0
+MarkupSafe==2.1.1
+packaging==22.0
+psycopg2==2.9.5
+pyasn1==0.4.8
+pycparser==2.21
+pyrsistent==0.19.3
+python-dateutil==2.8.2
+python-jose==3.3.0
+pytz==2022.7
+pytz-deprecation-shim==0.1.0.post0
+PyYAML==6.0
+regex==2022.10.31
+requests==2.28.1
+rsa==4.9
+six==1.16.0
+swagger-ui-bundle==0.0.9
+tzdata==2022.7
+tzlocal==4.2
+urllib3==1.26.13
+uWSGI==2.0.21
+Werkzeug==2.2.2