fastapi

core/settings.py

@@ -1 +1,11 @@
+from environs import Env  # type: ignore
+
+env = Env()
+env.read_env()
+
+DEBUG = env.bool("DEBUG", default=False)
+
+MINT_HOST = env.str("MINT_HOST", default="127.0.0.1")
+MINT_PORT = env.int("MINT_PORT", default=3338)
+
 MAX_ORDER = 64

mint/app.py

@@ -1,67 +1,148 @@
-import hashlib
-
 from ecc.curve import secp256k1, Point
-from flask import Flask, request
+from fastapi import FastAPI
-import os
+from fastapi.routing import APIRouter
+from fastapi.params import Depends, Query, Body
+
+import sys
 import asyncio
+import logging
+import uvicorn
+from loguru import logger
 
 from mint.ledger import Ledger
 from mint.migrations import m001_initial
 from lightning import WALLET
+import core.settings as settings
+
+from core.base import MintPayload, MintPayloads, SplitPayload
+
+# from .app import create_app
+
 
 # Ledger pubkey
-ledger = Ledger("supersecretprivatekey", "../data/mint")
+ledger = Ledger("supersecretprivatekey", "data/mint")
 
 
-class MyFlaskApp(Flask):
+# class MyFlaskApp(Flask):
-    """
+#     """
-    We overload the Flask class so we can run a startup script (migration).
+#     We overload the Flask class so we can run a startup script (migration).
-    Stupid Flask.
+#     Stupid Flask.
-    """
+#     """
 
-    def __init__(self, *args, **kwargs):
+#     def __init__(self, *args, **kwargs):
-        async def create_tasks_func():
+#         async def create_tasks_func():
-            await asyncio.wait([m001_initial(ledger.db)])
+#             await asyncio.wait([m001_initial(ledger.db)])
-            await ledger.load_used_proofs()
+#             await ledger.load_used_proofs()
 
-            error_message, balance = await WALLET.status()
+#             error_message, balance = await WALLET.status()
-            if error_message:
+#             if error_message:
-                print(
+#                 print(
-                    f"The backend for {WALLET.__class__.__name__} isn't working properly: '{error_message}'",
+#                     f"The backend for {WALLET.__class__.__name__} isn't working properly: '{error_message}'",
-                    RuntimeWarning,
+#                     RuntimeWarning,
-                )
+#                 )
 
-            print(f"Lightning balance: {balance} sat")
+#             print(f"Lightning balance: {balance} sat")
 
-            print("Mint started.")
+#             print("Mint started.")
 
-        loop = asyncio.get_event_loop()
+#         loop = asyncio.get_event_loop()
-        loop.run_until_complete(create_tasks_func())
+#         loop.run_until_complete(create_tasks_func())
-        loop.close()
+#         loop.close()
 
-        return super().__init__(*args, **kwargs)
+#         return super().__init__(*args, **kwargs)
 
-    def run(self, *args, **options):
+#     def run(self, *args, **options):
-        super(MyFlaskApp, self).run(*args, **options)
+#         super(MyFlaskApp, self).run(*args, **options)
 
 
-app = MyFlaskApp(__name__)
+def startup(app: FastAPI):
+    @app.on_event("startup")
+    async def load_ledger():
+        await asyncio.wait([m001_initial(ledger.db)])
+        await ledger.load_used_proofs()
+
+        error_message, balance = await WALLET.status()
+        if error_message:
+            logger.warning(
+                f"The backend for {WALLET.__class__.__name__} isn't working properly: '{error_message}'",
+                RuntimeWarning,
+            )
+
+        logger.info(f"Lightning balance: {balance} sat")
+
+        logger.info("Mint started.")
 
 
-@app.route("/keys")
+def create_app(config_object="core.settings") -> FastAPI:
+    def configure_logger() -> None:
+        class Formatter:
+            def __init__(self):
+                self.padding = 0
+                self.minimal_fmt: str = "<green>{time:YYYY-MM-DD HH:mm:ss.SS}</green> | <level>{level}</level> | <level>{message}</level>\n"
+                if settings.DEBUG:
+                    self.fmt: str = "<green>{time:YYYY-MM-DD HH:mm:ss.SS}</green> | <level>{level: <4}</level> | <cyan>{name}</cyan>:<cyan>{function}</cyan>:<cyan>{line}</cyan> | <level>{message}</level>\n"
+                else:
+                    self.fmt: str = self.minimal_fmt
+
+            def format(self, record):
+                function = "{function}".format(**record)
+                if function == "emit":  # uvicorn logs
+                    return self.minimal_fmt
+                return self.fmt
+
+        class InterceptHandler(logging.Handler):
+            def emit(self, record):
+                try:
+                    level = logger.level(record.levelname).name
+                except ValueError:
+                    level = record.levelno
+                logger.log(level, record.getMessage())
+
+        logger.remove()
+        log_level: str = "INFO"
+        formatter = Formatter()
+        logger.add(sys.stderr, level=log_level, format=formatter.format)
+
+        logging.getLogger("uvicorn").handlers = [InterceptHandler()]
+        logging.getLogger("uvicorn.access").handlers = [InterceptHandler()]
+
+    configure_logger()
+
+    app = FastAPI(
+        title="Cashu Mint",
+        description="Ecash wallet and mint.",
+        license_info={
+            "name": "MIT License",
+            "url": "https://raw.githubusercontent.com/callebtc/cashu/main/LICENSE",
+        },
+    )
+
+    startup(app)
+    return app
+
+
+app = create_app()
+
+
+@app.get("/")
+async def root():
+    return {"Hello": "world"}
+
+
+@app.get("/keys")
 def keys():
     return ledger.get_pubkeys()
 
 
-@app.route("/mint", methods=["POST"])
+@app.post("/mint")
-async def mint():
+async def mint(payloads: MintPayloads):
-    payload = request.json
     amounts = []
     B_s = []
-    for k, v in payload.items():
+    for payload in payloads.payloads:
+        v = payload.dict()
         amounts.append(v["amount"])
-        x = int(v["x"])
+        x = int(v["B_"]["x"])
-        y = int(v["y"])
+        y = int(v["B_"]["y"])
         B_ = Point(x, y, secp256k1)
         B_s.append(B_)
     try:
@@ -71,13 +152,18 @@ async def mint():
         return {"error": str(exc)}
 
 
-@app.route("/split", methods=["POST"])
+@app.post("/split")
-async def split():
+async def split(payload: SplitPayload):
-    proofs = request.json["proofs"]
+    v = payload.dict()
-    amount = request.json["amount"]
+    proofs = v["proofs"]
-    output_data = request.json["output_data"]
+    amount = v["amount"]
+    output_data = v["output_data"]["payloads"]
     try:
         fst_promises, snd_promises = await ledger.split(proofs, amount, output_data)
         return {"fst": fst_promises, "snd": snd_promises}
     except Exception as exc:
         return {"error": str(exc)}
+
+
+# if __name__ == "__main__":
+#     uvicorn.run(app, host="127.0.0.1", port=5049)

mint/ledger.py

@@ -18,9 +18,11 @@ from lightning import WALLET
 
 class Ledger:
     def __init__(self, secret_key: str, db: str):
-        self.master_key = secret_key
         self.proofs_used = set()
+
+        self.master_key = secret_key
         self.keys = self._derive_keys(self.master_key)
+        self.pub_keys = self._derive_pubkeys(self.keys)
         self.db = Database("mint", db)
 
     async def load_used_proofs(self):
@@ -40,6 +42,12 @@ class Ledger:
             for i in range(MAX_ORDER)
         }
 
+    @staticmethod
+    def _derive_pubkeys(keys):
+        return {
+            amt: keys[amt] * secp256k1.G for amt in [2**i for i in range(MAX_ORDER)]
+        }
+
     async def _generate_promises(self, amounts, B_s):
         """Generates promises that sum to the given amount."""
         return [
@@ -75,7 +83,7 @@ class Ledger:
         secrets = [p["secret"] for p in proofs]
         if len(secrets) != len(list(set(secrets))):
             return False
-        B_xs = [od["B'"]["x"] for od in output_data]
+        B_xs = [od["B_"]["x"] for od in output_data]
         if len(B_xs) != len(list(set(B_xs))):
             return False
         return True
@@ -134,12 +142,9 @@ class Ledger:
     # Public methods
     def get_pubkeys(self):
         """Returns public keys for possible amounts."""
-        return {
+        return self.pub_keys
-            amt: self.keys[amt] * secp256k1.G
-            for amt in [2**i for i in range(MAX_ORDER)]
-        }
 
-    async def mint(self, B_s, amounts, lightning=True):
+    async def mint(self, B_s, amounts, lightning=False):
         """Mints a promise for coins for B_."""
         for amount in amounts:
             if amount not in [2**i for i in range(MAX_ORDER)]:
@@ -183,8 +188,8 @@ class Ledger:
 
         outs_fst = amount_split(total - amount)
         outs_snd = amount_split(amount)
-        B_fst = [od["B'"] for od in output_data[: len(outs_fst)]]
+        B_fst = [od["B_"] for od in output_data[: len(outs_fst)]]
-        B_snd = [od["B'"] for od in output_data[len(outs_fst) :]]
+        B_snd = [od["B_"] for od in output_data[len(outs_fst) :]]
         prom_fst, prom_snd = await self._generate_promises(
             outs_fst, B_fst
         ), await self._generate_promises(outs_snd, B_snd)

poetry.lock

@@ -1,3 +1,20 @@
+[[package]]
+name = "anyio"
+version = "3.6.1"
+description = "High level compatibility layer for multiple asynchronous event loop implementations"
+category = "main"
+optional = false
+python-versions = ">=3.6.2"
+
+[package.dependencies]
+idna = ">=2.8"
+sniffio = ">=1.1"
+
+[package.extras]
+doc = ["packaging", "sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"]
+test = ["coverage[toml] (>=4.5)", "hypothesis (>=4.0)", "pytest (>=7.0)", "pytest-mock (>=3.6.1)", "trustme", "contextlib2", "uvloop (<0.15)", "mock (>=4)", "uvloop (>=0.15)"]
+trio = ["trio (>=0.16)"]
+
 [[package]]
 name = "asgiref"
 version = "3.5.2"
@@ -31,6 +48,28 @@ category = "main"
 optional = false
 python-versions = ">=3.5"
 
+[[package]]
+name = "black"
+version = "22.8.0"
+description = "The uncompromising code formatter."
+category = "dev"
+optional = false
+python-versions = ">=3.6.2"
+
+[package.dependencies]
+click = ">=8.0.0"
+mypy-extensions = ">=0.4.3"
+pathspec = ">=0.9.0"
+platformdirs = ">=2"
+tomli = {version = ">=1.1.0", markers = "python_full_version < \"3.11.0a7\""}
+typing-extensions = {version = ">=3.10.0.0", markers = "python_version < \"3.10\""}
+
+[package.extras]
+colorama = ["colorama (>=0.4.3)"]
+d = ["aiohttp (>=3.7.4)"]
+jupyter = ["ipython (>=7.8.0)", "tokenize-rt (>=3.2.0)"]
+uvloop = ["uvloop (>=0.15.2)"]
+
 [[package]]
 name = "certifi"
 version = "2022.6.15.1"
@@ -103,6 +142,42 @@ url = "https://github.com/lc6chang/ecc-pycrypto.git"
 reference = "v1.0.1"
 resolved_reference = "eb8b8c19a81a52d9cf705d90a597a78cdaf2b6f6"
 
+[[package]]
+name = "environs"
+version = "9.5.0"
+description = "simplified environment variable parsing"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+marshmallow = ">=3.0.0"
+python-dotenv = "*"
+
+[package.extras]
+dev = ["pytest", "dj-database-url", "dj-email-url", "django-cache-url", "flake8 (==4.0.1)", "flake8-bugbear (==21.9.2)", "mypy (==0.910)", "pre-commit (>=2.4,<3.0)", "tox"]
+django = ["dj-database-url", "dj-email-url", "django-cache-url"]
+lint = ["flake8 (==4.0.1)", "flake8-bugbear (==21.9.2)", "mypy (==0.910)", "pre-commit (>=2.4,<3.0)"]
+tests = ["pytest", "dj-database-url", "dj-email-url", "django-cache-url"]
+
+[[package]]
+name = "fastapi"
+version = "0.83.0"
+description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
+category = "main"
+optional = false
+python-versions = ">=3.6.1"
+
+[package.dependencies]
+pydantic = ">=1.6.2,<1.7 || >1.7,<1.7.1 || >1.7.1,<1.7.2 || >1.7.2,<1.7.3 || >1.7.3,<1.8 || >1.8,<1.8.1 || >1.8.1,<2.0.0"
+starlette = "0.19.1"
+
+[package.extras]
+all = ["requests (>=2.24.0,<3.0.0)", "jinja2 (>=2.11.2,<4.0.0)", "python-multipart (>=0.0.5,<0.0.6)", "itsdangerous (>=1.1.0,<3.0.0)", "pyyaml (>=5.3.1,<7.0.0)", "ujson (>=4.0.1,!=4.0.2,!=4.1.0,!=4.2.0,!=4.3.0,!=5.0.0,!=5.1.0,<6.0.0)", "orjson (>=3.2.1,<4.0.0)", "email_validator (>=1.1.1,<2.0.0)", "uvicorn[standard] (>=0.12.0,<0.18.0)"]
+dev = ["python-jose[cryptography] (>=3.3.0,<4.0.0)", "passlib[bcrypt] (>=1.7.2,<2.0.0)", "autoflake (>=1.4.0,<2.0.0)", "flake8 (>=3.8.3,<6.0.0)", "uvicorn[standard] (>=0.12.0,<0.18.0)", "pre-commit (>=2.17.0,<3.0.0)"]
+doc = ["mkdocs (>=1.1.2,<2.0.0)", "mkdocs-material (>=8.1.4,<9.0.0)", "mdx-include (>=1.4.1,<2.0.0)", "mkdocs-markdownextradata-plugin (>=0.1.7,<0.3.0)", "typer (>=0.4.1,<0.5.0)", "pyyaml (>=5.3.1,<7.0.0)"]
+test = ["pytest (>=6.2.4,<7.0.0)", "pytest-cov (>=2.12.0,<4.0.0)", "mypy (==0.910)", "flake8 (>=3.8.3,<6.0.0)", "black (==22.3.0)", "isort (>=5.0.6,<6.0.0)", "requests (>=2.24.0,<3.0.0)", "httpx (>=0.14.0,<0.19.0)", "email_validator (>=1.1.1,<2.0.0)", "sqlalchemy (>=1.3.18,<1.5.0)", "peewee (>=3.13.3,<4.0.0)", "databases[sqlite] (>=0.3.2,<0.6.0)", "orjson (>=3.2.1,<4.0.0)", "ujson (>=4.0.1,!=4.0.2,!=4.1.0,!=4.2.0,!=4.3.0,!=5.0.0,!=5.1.0,<6.0.0)", "python-multipart (>=0.0.5,<0.0.6)", "flask (>=1.1.2,<3.0.0)", "anyio[trio] (>=3.2.1,<4.0.0)", "types-ujson (==4.2.1)", "types-orjson (==3.6.2)", "types-dataclasses (==0.6.5)"]
+
 [[package]]
 name = "flask"
 version = "2.2.2"
@@ -122,6 +197,14 @@ Werkzeug = ">=2.2.2"
 async = ["asgiref (>=3.2)"]
 dotenv = ["python-dotenv"]
 
+[[package]]
+name = "h11"
+version = "0.13.0"
+description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
 [[package]]
 name = "idna"
 version = "3.3"
@@ -176,6 +259,21 @@ MarkupSafe = ">=2.0"
 [package.extras]
 i18n = ["Babel (>=2.7)"]
 
+[[package]]
+name = "loguru"
+version = "0.6.0"
+description = "Python logging made (stupidly) simple"
+category = "main"
+optional = false
+python-versions = ">=3.5"
+
+[package.dependencies]
+colorama = {version = ">=0.3.4", markers = "sys_platform == \"win32\""}
+win32-setctime = {version = ">=1.0.0", markers = "sys_platform == \"win32\""}
+
+[package.extras]
+dev = ["sphinx-rtd-theme (>=0.4.3)", "sphinx-autobuild (>=0.7.1)", "Sphinx (>=4.1.1)", "isort (>=5.1.1)", "black (>=19.10b0)", "pytest-cov (>=2.7.1)", "pytest (>=4.6.2)", "tox (>=3.9.0)", "flake8 (>=3.7.7)", "docutils (==0.16)", "colorama (>=0.3.4)"]
+
 [[package]]
 name = "markupsafe"
 version = "2.1.1"
@@ -184,6 +282,31 @@ category = "main"
 optional = false
 python-versions = ">=3.7"
 
+[[package]]
+name = "marshmallow"
+version = "3.17.1"
+description = "A lightweight library for converting complex datatypes to and from native Python datatypes."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+packaging = ">=17.0"
+
+[package.extras]
+dev = ["pytest", "pytz", "simplejson", "mypy (==0.971)", "flake8 (==5.0.4)", "flake8-bugbear (==22.8.22)", "pre-commit (>=2.4,<3.0)", "tox"]
+docs = ["sphinx (==5.1.1)", "sphinx-issues (==3.0.1)", "alabaster (==0.7.12)", "sphinx-version-warning (==1.1.2)", "autodocsumm (==0.2.9)"]
+lint = ["mypy (==0.971)", "flake8 (==5.0.4)", "flake8-bugbear (==22.8.22)", "pre-commit (>=2.4,<3.0)"]
+tests = ["pytest", "pytz", "simplejson"]
+
+[[package]]
+name = "mypy-extensions"
+version = "0.4.3"
+description = "Experimental type system extensions for programs checked with the mypy typechecker."
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "outcome"
 version = "1.2.0"
@@ -206,6 +329,26 @@ python-versions = ">=3.6"
 [package.dependencies]
 pyparsing = ">=2.0.2,<3.0.5 || >3.0.5"
 
+[[package]]
+name = "pathspec"
+version = "0.10.1"
+description = "Utility library for gitignore style pattern matching of file paths."
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+
+[[package]]
+name = "platformdirs"
+version = "2.5.2"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+docs = ["furo (>=2021.7.5b38)", "proselint (>=0.10.2)", "sphinx-autodoc-typehints (>=1.12)", "sphinx (>=4)"]
+test = ["appdirs (==1.4.4)", "pytest-cov (>=2.7)", "pytest-mock (>=3.6)", "pytest (>=6)"]
+
 [[package]]
 name = "pluggy"
 version = "1.0.0"
@@ -302,6 +445,17 @@ pytest = ">=6.1.0"
 [package.extras]
 testing = ["coverage (>=6.2)", "hypothesis (>=5.7.1)", "flaky (>=3.5.0)", "mypy (>=0.931)", "pytest-trio (>=0.7.0)"]
 
+[[package]]
+name = "python-dotenv"
+version = "0.21.0"
+description = "Read key-value pairs from a .env file and set them as environment variables"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+cli = ["click (>=5.0)"]
+
 [[package]]
 name = "represent"
 version = "1.6.0.post0"
@@ -342,6 +496,14 @@ category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 
+[[package]]
+name = "sniffio"
+version = "1.3.0"
+description = "Sniff out which async library your code is running under"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
 [[package]]
 name = "sqlalchemy"
 version = "1.3.24"
@@ -380,6 +542,21 @@ test = ["pytest (>=5.4)", "pytest-asyncio (>=0.14)", "pytest-trio (>=0.6)"]
 test-noextras = ["pytest (>=5.4)", "pytest-asyncio (>=0.14)"]
 trio = ["trio (>=0.15)"]
 
+[[package]]
+name = "starlette"
+version = "0.19.1"
+description = "The little ASGI library that shines."
+category = "main"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+anyio = ">=3.4.0,<5"
+typing-extensions = {version = ">=3.10.0", markers = "python_version < \"3.10\""}
+
+[package.extras]
+full = ["itsdangerous", "jinja2", "python-multipart", "pyyaml", "requests"]
+
 [[package]]
 name = "tomli"
 version = "2.0.1"
@@ -409,6 +586,21 @@ brotli = ["brotlicffi (>=0.8.0)", "brotli (>=1.0.9)", "brotlipy (>=0.6.0)"]
 secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
 socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
+[[package]]
+name = "uvicorn"
+version = "0.18.3"
+description = "The lightning-fast ASGI server."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+click = ">=7.0"
+h11 = ">=0.8"
+
+[package.extras]
+standard = ["colorama (>=0.4)", "httptools (>=0.4.0)", "python-dotenv (>=0.13)", "pyyaml (>=5.1)", "uvloop (>=0.14.0,!=0.15.0,!=0.15.1)", "watchfiles (>=0.13)", "websockets (>=10.0)"]
+
 [[package]]
 name = "werkzeug"
 version = "2.2.2"
@@ -423,6 +615,17 @@ MarkupSafe = ">=2.1.1"
 [package.extras]
 watchdog = ["watchdog"]
 
+[[package]]
+name = "win32-setctime"
+version = "1.1.0"
+description = "A small Python utility to set file creation time on Windows"
+category = "main"
+optional = false
+python-versions = ">=3.5"
+
+[package.extras]
+dev = ["black (>=19.3b0)", "pytest (>=4.6.2)"]
+
 [[package]]
 name = "zipp"
 version = "3.8.1"
@@ -438,9 +641,13 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "d2c4df45eea8820487f68d4f8a5509956c1a114a0b65ebd7f707187253612a1a"
+content-hash = "ed00e50dd88910eebcd5db652d99e722f77226f4f102e3bdd1032a4b1700dd99"
 
 [metadata.files]
+anyio = [
+    {file = "anyio-3.6.1-py3-none-any.whl", hash = "sha256:cb29b9c70620506a9a8f87a309591713446953302d7d995344d0d7c6c0c9a7be"},
+    {file = "anyio-3.6.1.tar.gz", hash = "sha256:413adf95f93886e442aea925f3ee43baa5a765a64a0f52c6081894f9992fdd0b"},
+]
 asgiref = [
     {file = "asgiref-3.5.2-py3-none-any.whl", hash = "sha256:1d2880b792ae8757289136f1db2b7b99100ce959b2aa57fd69dab783d05afac4"},
     {file = "asgiref-3.5.2.tar.gz", hash = "sha256:4a29362a6acebe09bf1d6640db38c1dc3d9217c68e6f9f6204d72667fc19a424"},
@@ -453,6 +660,31 @@ bech32 = [
     {file = "bech32-1.2.0-py3-none-any.whl", hash = "sha256:990dc8e5a5e4feabbdf55207b5315fdd9b73db40be294a19b3752cde9e79d981"},
     {file = "bech32-1.2.0.tar.gz", hash = "sha256:7d6db8214603bd7871fcfa6c0826ef68b85b0abd90fa21c285a9c5e21d2bd899"},
 ]
+black = [
+    {file = "black-22.8.0-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:ce957f1d6b78a8a231b18e0dd2d94a33d2ba738cd88a7fe64f53f659eea49fdd"},
+    {file = "black-22.8.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:5107ea36b2b61917956d018bd25129baf9ad1125e39324a9b18248d362156a27"},
+    {file = "black-22.8.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:e8166b7bfe5dcb56d325385bd1d1e0f635f24aae14b3ae437102dedc0c186747"},
+    {file = "black-22.8.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:dd82842bb272297503cbec1a2600b6bfb338dae017186f8f215c8958f8acf869"},
+    {file = "black-22.8.0-cp310-cp310-win_amd64.whl", hash = "sha256:d839150f61d09e7217f52917259831fe2b689f5c8e5e32611736351b89bb2a90"},
+    {file = "black-22.8.0-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:a05da0430bd5ced89176db098567973be52ce175a55677436a271102d7eaa3fe"},
+    {file = "black-22.8.0-cp36-cp36m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:4a098a69a02596e1f2a58a2a1c8d5a05d5a74461af552b371e82f9fa4ada8342"},
+    {file = "black-22.8.0-cp36-cp36m-win_amd64.whl", hash = "sha256:5594efbdc35426e35a7defa1ea1a1cb97c7dbd34c0e49af7fb593a36bd45edab"},
+    {file = "black-22.8.0-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:a983526af1bea1e4cf6768e649990f28ee4f4137266921c2c3cee8116ae42ec3"},
+    {file = "black-22.8.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:3b2c25f8dea5e8444bdc6788a2f543e1fb01494e144480bc17f806178378005e"},
+    {file = "black-22.8.0-cp37-cp37m-win_amd64.whl", hash = "sha256:78dd85caaab7c3153054756b9fe8c611efa63d9e7aecfa33e533060cb14b6d16"},
+    {file = "black-22.8.0-cp38-cp38-macosx_10_9_universal2.whl", hash = "sha256:cea1b2542d4e2c02c332e83150e41e3ca80dc0fb8de20df3c5e98e242156222c"},
+    {file = "black-22.8.0-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:5b879eb439094751185d1cfdca43023bc6786bd3c60372462b6f051efa6281a5"},
+    {file = "black-22.8.0-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:0a12e4e1353819af41df998b02c6742643cfef58282915f781d0e4dd7a200411"},
+    {file = "black-22.8.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c3a73f66b6d5ba7288cd5d6dad9b4c9b43f4e8a4b789a94bf5abfb878c663eb3"},
+    {file = "black-22.8.0-cp38-cp38-win_amd64.whl", hash = "sha256:e981e20ec152dfb3e77418fb616077937378b322d7b26aa1ff87717fb18b4875"},
+    {file = "black-22.8.0-cp39-cp39-macosx_10_9_universal2.whl", hash = "sha256:8ce13ffed7e66dda0da3e0b2eb1bdfc83f5812f66e09aca2b0978593ed636b6c"},
+    {file = "black-22.8.0-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:32a4b17f644fc288c6ee2bafdf5e3b045f4eff84693ac069d87b1a347d861497"},
+    {file = "black-22.8.0-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:0ad827325a3a634bae88ae7747db1a395d5ee02cf05d9aa7a9bd77dfb10e940c"},
+    {file = "black-22.8.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:53198e28a1fb865e9fe97f88220da2e44df6da82b18833b588b1883b16bb5d41"},
+    {file = "black-22.8.0-cp39-cp39-win_amd64.whl", hash = "sha256:bc4d4123830a2d190e9cc42a2e43570f82ace35c3aeb26a512a2102bce5af7ec"},
+    {file = "black-22.8.0-py3-none-any.whl", hash = "sha256:d2c21d439b2baf7aa80d6dd4e3659259be64c6f49dfd0f32091063db0e006db4"},
+    {file = "black-22.8.0.tar.gz", hash = "sha256:792f7eb540ba9a17e8656538701d3eb1afcb134e3b45b71f20b25c77a8db7e6e"},
+]
 certifi = [
     {file = "certifi-2022.6.15.1-py3-none-any.whl", hash = "sha256:43dadad18a7f168740e66944e4fa82c6611848ff9056ad910f8f7a3e46ab89e0"},
     {file = "certifi-2022.6.15.1.tar.gz", hash = "sha256:cffdcd380919da6137f76633531a5817e3a9f268575c128249fb637e4f9e73fb"},
@@ -477,10 +709,22 @@ ecc = [
     {file = "ecc-0.0.1.zip", hash = "sha256:4bbcd46e9963ca37422d3244ab503af9dce95cbd35f676f7f9a4dd6306e23538"},
 ]
 ecc-pycrypto = []
+environs = [
+    {file = "environs-9.5.0-py2.py3-none-any.whl", hash = "sha256:1e549569a3de49c05f856f40bce86979e7d5ffbbc4398e7f338574c220189124"},
+    {file = "environs-9.5.0.tar.gz", hash = "sha256:a76307b36fbe856bdca7ee9161e6c466fd7fcffc297109a118c59b54e27e30c9"},
+]
+fastapi = [
+    {file = "fastapi-0.83.0-py3-none-any.whl", hash = "sha256:694a2b6c2607a61029a4be1c6613f84d74019cb9f7a41c7a475dca8e715f9368"},
+    {file = "fastapi-0.83.0.tar.gz", hash = "sha256:96eb692350fe13d7a9843c3c87a874f0d45102975257dd224903efd6c0fde3bd"},
+]
 flask = [
     {file = "Flask-2.2.2-py3-none-any.whl", hash = "sha256:b9c46cc36662a7949f34b52d8ec7bb59c0d74ba08ba6cb9ce9adc1d8676d9526"},
     {file = "Flask-2.2.2.tar.gz", hash = "sha256:642c450d19c4ad482f96729bd2a8f6d32554aa1e231f4f6b4e7e5264b16cca2b"},
 ]
+h11 = [
+    {file = "h11-0.13.0-py3-none-any.whl", hash = "sha256:8ddd78563b633ca55346c8cd41ec0af27d3c79931828beffb46ce70a379e7442"},
+    {file = "h11-0.13.0.tar.gz", hash = "sha256:70813c1135087a248a4d38cc0e1a0181ffab2188141a93eaf567940c3957ff06"},
+]
 idna = [
     {file = "idna-3.3-py3-none-any.whl", hash = "sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff"},
     {file = "idna-3.3.tar.gz", hash = "sha256:9d643ff0a55b762d5cdb124b8eaa99c66322e2157b69160bc32796e824360e6d"},
@@ -501,6 +745,10 @@ jinja2 = [
     {file = "Jinja2-3.0.3-py3-none-any.whl", hash = "sha256:077ce6014f7b40d03b47d1f1ca4b0fc8328a692bd284016f806ed0eaca390ad8"},
     {file = "Jinja2-3.0.3.tar.gz", hash = "sha256:611bb273cd68f3b993fabdc4064fc858c5b47a973cb5aa7999ec1ba405c87cd7"},
 ]
+loguru = [
+    {file = "loguru-0.6.0-py3-none-any.whl", hash = "sha256:4e2414d534a2ab57573365b3e6d0234dfb1d84b68b7f3b948e6fb743860a77c3"},
+    {file = "loguru-0.6.0.tar.gz", hash = "sha256:066bd06758d0a513e9836fd9c6b5a75bfb3fd36841f4b996bc60b547a309d41c"},
+]
 markupsafe = [
     {file = "MarkupSafe-2.1.1-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:86b1f75c4e7c2ac2ccdaec2b9022845dbb81880ca318bb7a0a01fbf7813e3812"},
     {file = "MarkupSafe-2.1.1-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:f121a1420d4e173a5d96e47e9a0c0dcff965afdf1626d28de1460815f7c4ee7a"},
@@ -543,6 +791,14 @@ markupsafe = [
     {file = "MarkupSafe-2.1.1-cp39-cp39-win_amd64.whl", hash = "sha256:46d00d6cfecdde84d40e572d63735ef81423ad31184100411e6e3388d405e247"},
     {file = "MarkupSafe-2.1.1.tar.gz", hash = "sha256:7f91197cc9e48f989d12e4e6fbc46495c446636dfc81b9ccf50bb0ec74b91d4b"},
 ]
+marshmallow = [
+    {file = "marshmallow-3.17.1-py3-none-any.whl", hash = "sha256:1172ce82765bf26c24a3f9299ed6dbeeca4d213f638eaa39a37772656d7ce408"},
+    {file = "marshmallow-3.17.1.tar.gz", hash = "sha256:48e2d88d4ab431ad5a17c25556d9da529ea6e966876f2a38d274082e270287f0"},
+]
+mypy-extensions = [
+    {file = "mypy_extensions-0.4.3-py2.py3-none-any.whl", hash = "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d"},
+    {file = "mypy_extensions-0.4.3.tar.gz", hash = "sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8"},
+]
 outcome = [
     {file = "outcome-1.2.0-py2.py3-none-any.whl", hash = "sha256:c4ab89a56575d6d38a05aa16daeaa333109c1f96167aba8901ab18b6b5e0f7f5"},
     {file = "outcome-1.2.0.tar.gz", hash = "sha256:6f82bd3de45da303cf1f771ecafa1633750a358436a8bb60e06a1ceb745d2672"},
@@ -551,6 +807,14 @@ packaging = [
     {file = "packaging-21.3-py3-none-any.whl", hash = "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"},
     {file = "packaging-21.3.tar.gz", hash = "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb"},
 ]
+pathspec = [
+    {file = "pathspec-0.10.1-py3-none-any.whl", hash = "sha256:46846318467efc4556ccfd27816e004270a9eeeeb4d062ce5e6fc7a87c573f93"},
+    {file = "pathspec-0.10.1.tar.gz", hash = "sha256:7ace6161b621d31e7902eb6b5ae148d12cfd23f4a249b9ffb6b9fee12084323d"},
+]
+platformdirs = [
+    {file = "platformdirs-2.5.2-py3-none-any.whl", hash = "sha256:027d8e83a2d7de06bbac4e5ef7e023c02b863d7ea5d079477e722bb41ab25788"},
+    {file = "platformdirs-2.5.2.tar.gz", hash = "sha256:58c8abb07dcb441e6ee4b11d8df0ac856038f944ab98b7be6b27b2a3c7feef19"},
+]
 pluggy = [
     {file = "pluggy-1.0.0-py2.py3-none-any.whl", hash = "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"},
     {file = "pluggy-1.0.0.tar.gz", hash = "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159"},
@@ -670,6 +934,10 @@ pytest-asyncio = [
     {file = "pytest-asyncio-0.19.0.tar.gz", hash = "sha256:ac4ebf3b6207259750bc32f4c1d8fcd7e79739edbc67ad0c58dd150b1d072fed"},
     {file = "pytest_asyncio-0.19.0-py3-none-any.whl", hash = "sha256:7a97e37cfe1ed296e2e84941384bdd37c376453912d397ed39293e0916f521fa"},
 ]
+python-dotenv = [
+    {file = "python-dotenv-0.21.0.tar.gz", hash = "sha256:b77d08274639e3d34145dfa6c7008e66df0f04b7be7a75fd0d5292c191d79045"},
+    {file = "python_dotenv-0.21.0-py3-none-any.whl", hash = "sha256:1684eb44636dd462b66c3ee016599815514527ad99965de77f43e0944634a7e5"},
+]
 represent = [
     {file = "Represent-1.6.0.post0-py2.py3-none-any.whl", hash = "sha256:99142650756ef1998ce0661568f54a47dac8c638fb27e3816c02536575dbba8c"},
     {file = "Represent-1.6.0.post0.tar.gz", hash = "sha256:026c0de2ee8385d1255b9c2426cd4f03fe9177ac94c09979bc601946c8493aa0"},
@@ -682,6 +950,10 @@ six = [
     {file = "six-1.16.0-py2.py3-none-any.whl", hash = "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"},
     {file = "six-1.16.0.tar.gz", hash = "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926"},
 ]
+sniffio = [
+    {file = "sniffio-1.3.0-py3-none-any.whl", hash = "sha256:eecefdce1e5bbfb7ad2eeaabf7c1eeb404d7757c379bd1f7e5cce9d8bf425384"},
+    {file = "sniffio-1.3.0.tar.gz", hash = "sha256:e60305c5e5d314f5389259b7f22aaa33d8f7dee49763119234af3755c55b9101"},
+]
 sqlalchemy = [
     {file = "SQLAlchemy-1.3.24-cp27-cp27m-macosx_10_14_x86_64.whl", hash = "sha256:87a2725ad7d41cd7376373c15fd8bf674e9c33ca56d0b8036add2d634dba372e"},
     {file = "SQLAlchemy-1.3.24-cp27-cp27m-win32.whl", hash = "sha256:f597a243b8550a3a0b15122b14e49d8a7e622ba1c9d29776af741f1845478d79"},
@@ -722,6 +994,10 @@ sqlalchemy-aio = [
     {file = "sqlalchemy_aio-0.17.0-py3-none-any.whl", hash = "sha256:3f4aa392c38f032d6734826a4138a0f02ed3122d442ed142be1e5964f2a33b60"},
     {file = "sqlalchemy_aio-0.17.0.tar.gz", hash = "sha256:f531c7982662d71dfc0b117e77bb2ed544e25cd5361e76cf9f5208edcfb71f7b"},
 ]
+starlette = [
+    {file = "starlette-0.19.1-py3-none-any.whl", hash = "sha256:5a60c5c2d051f3a8eb546136aa0c9399773a689595e099e0877704d5888279bf"},
+    {file = "starlette-0.19.1.tar.gz", hash = "sha256:c6d21096774ecb9639acad41b86b7706e52ba3bf1dc13ea4ed9ad593d47e24c7"},
+]
 tomli = [
     {file = "tomli-2.0.1-py3-none-any.whl", hash = "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc"},
     {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
@@ -734,10 +1010,18 @@ urllib3 = [
     {file = "urllib3-1.26.9-py2.py3-none-any.whl", hash = "sha256:44ece4d53fb1706f667c9bd1c648f5469a2ec925fcf3a776667042d645472c14"},
     {file = "urllib3-1.26.9.tar.gz", hash = "sha256:aabaf16477806a5e1dd19aa41f8c2b7950dd3c746362d7e3223dbe6de6ac448e"},
 ]
+uvicorn = [
+    {file = "uvicorn-0.18.3-py3-none-any.whl", hash = "sha256:0abd429ebb41e604ed8d2be6c60530de3408f250e8d2d84967d85ba9e86fe3af"},
+    {file = "uvicorn-0.18.3.tar.gz", hash = "sha256:9a66e7c42a2a95222f76ec24a4b754c158261c4696e683b9dadc72b590e0311b"},
+]
 werkzeug = [
     {file = "Werkzeug-2.2.2-py3-none-any.whl", hash = "sha256:f979ab81f58d7318e064e99c4506445d60135ac5cd2e177a2de0089bfd4c9bd5"},
     {file = "Werkzeug-2.2.2.tar.gz", hash = "sha256:7ea2d48322cc7c0f8b3a215ed73eabd7b5d75d0b50e31ab006286ccff9e00b8f"},
 ]
+win32-setctime = [
+    {file = "win32_setctime-1.1.0-py3-none-any.whl", hash = "sha256:231db239e959c2fe7eb1d7dc129f11172354f98361c4fa2d6d2d7e278baa8aad"},
+    {file = "win32_setctime-1.1.0.tar.gz", hash = "sha256:15cf5750465118d6929ae4de4eb46e8edae9a5634350c01ba582df868e932cb2"},
+]
 zipp = [
     {file = "zipp-3.8.1-py3-none-any.whl", hash = "sha256:47c40d7fe183a6f21403a199b3e4192cca5774656965b0a4988ad2f8feb5f009"},
     {file = "zipp-3.8.1.tar.gz", hash = "sha256:05b45f1ee8f807d0cc928485ca40a07cb491cf092ff587c0df9cb1fd154848d2"},

pyproject.toml

@@ -27,8 +27,13 @@ asgiref = "^3.5.2"
 pydantic = "^1.10.2"
 bech32 = "^1.2.0"
 psycopg2-binary = "^2.9.3"
+fastapi = "^0.83.0"
+environs = "^9.5.0"
+uvicorn = "^0.18.3"
+loguru = "^0.6.0"
 
 [tool.poetry.dev-dependencies]
+black = {version = "^22.8.0", allow-prereleases = true}
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]

wallet/crud.py

@@ -3,7 +3,7 @@ from typing import Optional
 from core.db import Connection, Database
 
 # from wallet import db
-from wallet.models import Proof
+from core.base import Proof
 
 
 async def store_proof(

wallet/models.py

@@ -1,20 +0,0 @@
-from pydantic import BaseModel
-from sqlite3 import Row
-
-
-class Proof(dict):
-    amount: int
-    C_x: int
-    C_y: int
-    secret: str
-
-    @classmethod
-    def from_row(cls, row: Row):
-        return dict(
-            amount=row[0],
-            C=dict(
-                x=int(row[1]),
-                y=int(row[2]),
-            ),
-            secret=row[3],
-        )

wallet/wallet.py

@@ -4,7 +4,7 @@ import asyncio
 import requests
 from ecc.curve import secp256k1, Point
 from typing import List
-from wallet.models import Proof
+from core.base import Proof, BasePoint
 
 import core.b_dhke as b_dhke
 from core.db import Database
@@ -12,6 +12,8 @@ from core.split import amount_split
 
 from wallet.crud import store_proof, invalidate_proof, get_proofs
 
+from core.base import MintPayload, MintPayloads, SplitPayload
+
 
 class LedgerAPI:
     def __init__(self, url):
@@ -41,21 +43,14 @@ class LedgerAPI:
         for promise, (r, secret) in zip(promises, secrets):
             C_ = Point(promise["C'"]["x"], promise["C'"]["y"], secp256k1)
             C = b_dhke.step3_bob(C_, r, self.keys[promise["amount"]])
-            proofs.append(
+            c_point = BasePoint(x=C.x, y=C.y)
-                {
+            proof = Proof(amount=promise["amount"], C=c_point, secret=secret)
-                    "amount": promise["amount"],
+            proofs.append(proof.dict())
-                    "C": {
-                        "x": C.x,
-                        "y": C.y,
-                    },
-                    "secret": secret,
-                }
-            )
         return proofs
 
     def mint(self, amounts):
         """Mints new coins and returns a proof of promise."""
-        payload = {}
+        payloads: MintPayloads = MintPayloads()
         secrets = []
         rs = []
         for i, amount in enumerate(amounts):
@@ -63,14 +58,17 @@ class LedgerAPI:
             secrets.append(secret)
             B_, r = b_dhke.step1_bob(secret)
             rs.append(r)
-            payload[i] = {"amount": amount, "x": str(B_.x), "y": str(B_.y)}
+            blinded_point = BasePoint(x=str(B_.x), y=str(B_.y))
+            payload: MintPayload = MintPayload(amount=amount, B_=blinded_point)
+            payloads.payloads.append(payload)
 
+        print(payloads.dict())
         promises = requests.post(
             self.url + "/mint",
-            json=payload,
+            json=payloads.dict(),
         ).json()
-        if "error" in promises:
+        if "detail" in promises:
-            raise Exception("Error: {}".format(promises["error"]))
+            raise Exception("Error: {}".format(promises["detail"]))
         return self._construct_proofs(promises, [(r, s) for r, s in zip(rs, secrets)])
 
     def split(self, proofs, amount):
@@ -81,23 +79,28 @@ class LedgerAPI:
         snd_outputs = amount_split(snd_amt)
 
         secrets = []
-        output_data = []
+        # output_data = []
+        payloads: MintPayloads = MintPayloads()
         for output_amt in fst_outputs + snd_outputs:
             secret = str(random.getrandbits(128))
             B_, r = b_dhke.step1_bob(secret)
             secrets.append((r, secret))
-            output_data.append(
+            blinded_point = BasePoint(x=str(B_.x), y=str(B_.y))
-                {
+            payload: MintPayload = MintPayload(amount=output_amt, B_=blinded_point)
-                    "amount": output_amt,
+            payloads.payloads.append(payload)
-                    "B'": {
+            # output_data.append(
-                        "x": B_.x,
+            #     {
-                        "y": B_.y,
+            #         "amount": output_amt,
-                    },
+            #         "B'": {
-                }
+            #             "x": B_.x,
-            )
+            #             "y": B_.y,
+            #         },
+            #     }
+            # )
+        split_payload = SplitPayload(proofs=proofs, amount=amount, output_data=payloads)
         promises = requests.post(
             self.url + "/split",
-            json={"proofs": proofs, "amount": amount, "output_data": output_data},
+            json=split_payload.dict(),
         ).json()
         if "error" in promises:
             raise Exception("Error: {}".format(promises["error"]))