Add demo fastapi routes and models

backend/README.md

@@ -0,0 +1,32 @@
+# Juggl API
+
+## Installation
+
+Minimum Python version: 3.10
+
+Create virtual environment:
+
+```
+$ python3.10 -m venv/ ./venv/
+```
+
+Activate virtual environment (Linux):
+
+```
+$ source venv/bin/activate
+```
+
+
+Activate virtual environment (Windows):
+
+```
+$ .venv\Scripts\activate
+```
+
+## Guidelines
+
+All routes and should be async for maximum performance
+
+Always specify the `response_model` in the route decorator and use the same type as type hint for the function return
+type. FastAPI is unfortunately not yet smart enough to determine the `response_model` from the return type hint.
+Maybe we should consider making a pull request...

backend/app/main.py

@@ -1,8 +0,0 @@
-from fastapi import FastAPI
-
-app = FastAPI()
-
-
-@app.get("/")
-async def root():
-    return {"message": "Hello World"}

backend/requirements.txt

@@ -1,2 +1,3 @@
-fastapi
+uvicorn~=0.15.0
-uvicorn
+fastapi~=0.70.0
+pydantic~=1.8.2

backend/src/main.py

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+import argparse
+
+import uvicorn
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from src.routes.projects import router as project_router
+from src.routes.tags import router as tag_router
+from src.routes.records import router as record_router
+
+
+description = """
+Welcome to the Juggl API.
+    
+This API allows you to retrieve your timetracking data.
+"""
+
+app = FastAPI(
+    title="Juggl API",
+    description=description,
+    contact={  # Contact information. See  https://fastapi.tiangolo.com/tutorial/metadata/
+        "name": "Juggl Management",
+        "url": "https://juggl.giller.dev/contact",
+        "email": "help@juggl.giller.dev",
+    },
+    docs_url="/"  # Documentation on start page
+)
+"""The main FastAPI instance"""
+
+# Enable CORS to allow requests from other domains/origins.
+# See https://en.wikipedia.org/wiki/Cross-origin_resource_sharing
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=[
+        # Allow **all** foreign requests to access this API.
+        '*'
+    ],
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Add subroutes
+app.include_router(project_router)
+app.include_router(tag_router)
+app.include_router(record_router)
+
+
+def main():
+    args = parse_args()
+    if args.dev:
+        start_dev_server(args.port)
+    else:
+        start_production_server(args.port)
+
+
+def parse_args() -> argparse.Namespace:
+    """Parses command line arguments on application startup."""
+
+    parser = argparse.ArgumentParser(
+        description="Juggl Backend v2",
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter  # show default values
+    )
+    parser.add_argument("--dev", default=False, action=argparse.BooleanOptionalAction,
+                        help="Start a dev server with auto-reloading")
+    parser.add_argument("--port", type=int, default=8192, help="Port on which the API should run")
+    return parser.parse_args()
+
+
+def start_dev_server(port: int):
+    """Starts a development server with auto-reloading on port."""
+
+    uvicorn.run("main:app", reload=True, port=port)
+
+
+def start_production_server(port: int):
+    """Starts a production, i.e. performance-optimized server on port."""
+
+    uvicorn.run("main:app", port=port)
+
+
+if __name__ == "__main__":
+    main()

backend/src/models/project.py

@@ -0,0 +1,25 @@
+from datetime import datetime, timedelta
+from pydantic import BaseModel, Field
+from pydantic.json import timedelta_isoformat
+
+
+class ProjectNew(BaseModel):
+    """Model used when a user creates a new project."""
+
+    name: str = Field(description="Name of the project", example="Learning")
+
+
+class ProjectInfo(BaseModel):
+    """Model used when querying information about a module."""
+
+    name: str = Field(description="Name of the project", example="Learning")
+    start_date: datetime = Field(description="Project creation date", example=datetime.now())
+    duration: timedelta = Field(description="Total tracked duration", example=timedelta(days=3, hours=5, minutes=47))
+    records: int = Field(description="Total number of trackings/records", example=42)
+
+    class Config:  # TODO: Adding this config may be done with a decorator
+        """pydantic config"""
+        json_encoders = {
+            # Serialize timedeltas as ISO 8601 and not as float seconds, which is the default
+            timedelta: timedelta_isoformat,
+        }

backend/src/models/record.py

@@ -0,0 +1,27 @@
+from datetime import datetime, timedelta
+from pydantic import BaseModel, Field
+from pydantic.json import timedelta_isoformat
+
+
+class RecordStart(BaseModel):
+    """Model used when a user starts a record."""
+
+    start: datetime = Field(
+        description="Start date of record",
+        example=datetime.now() - timedelta(hours=3)
+    )
+    project: str = Field(description="Name of the project that should be tracked", example="Uni")
+    tags: list[str] = Field(description="List of tags by name", example=["Listening Lectures", "Not be concentrated"])
+
+
+class RecordInfo(BaseModel):
+    start: datetime = Field(
+        description="Start date of record",
+        example=datetime.now() - timedelta(hours=3)
+    )
+    end: datetime = Field(
+        description="End date of record",
+        example=datetime.now()
+    )
+    project: str = Field(description="Name of the project that should be tracked", example="Uni")
+    tags: list[str] = Field(description="List of tags by name", example=["Listening Lectures", "Not be concentrated"])

backend/src/models/tag.py

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+from datetime import datetime, timedelta
+from pydantic import BaseModel, Field
+from pydantic.json import timedelta_isoformat
+
+
+class TagNew(BaseModel):
+    """Model used when a user creates a new tag."""
+
+    name: str = Field(description="Name of the tag", example="Listening Lectures")
+
+
+class TagInfo(BaseModel):
+    """Model used when querying information about a tag."""
+
+    name: str = Field(description="Name of the tag", example="Listening Lectures")
+    duration: timedelta = Field(description="Total tracked duration", example=timedelta(days=3, hours=5, minutes=47))

backend/src/routes/projects.py

@@ -0,0 +1,66 @@
+import logging
+from datetime import datetime, timedelta
+
+from fastapi import APIRouter, status, Path
+from src.models.project import ProjectNew, ProjectInfo
+
+router = APIRouter(prefix='/projects', tags=["Projects"])
+
+
+@router.get("/", response_model=list[ProjectInfo], summary="Get a list of all projects")
+async def all_projects() -> list[ProjectInfo]:
+    """Returns a list of all projects"""
+
+    return [
+        ProjectInfo(
+            name="Learning",
+            start_date=datetime.now(),
+            duration=timedelta(days=3, hours=5, minutes=47),
+            records=42
+        ),
+        ProjectInfo(
+            name="Sports",
+            start_date=datetime.now(),
+            duration=timedelta(hours=14, minutes=10),
+            records=10
+        ),
+        ProjectInfo(
+            name="Gaming",
+            start_date=datetime.now(),
+            duration=timedelta(hours=3, minutes=2),
+            records=5
+        )
+    ]
+
+
+@router.post("/", status_code=status.HTTP_201_CREATED, summary="Add a project")
+async def add_project(project: ProjectNew):
+    """Add a project."""
+
+    print('adding project', project)
+
+
+@router.get("/{name}", response_model=ProjectInfo, summary="Get a project by name")
+async def get_project(name: str = Path(..., title="Name of the module")) -> ProjectInfo:
+    """Fetch a project by name."""
+
+    return ProjectInfo(
+        name=name,
+        start_date=datetime.now(),
+        duration=timedelta(hours=3, minutes=2),
+        records=5
+    )
+
+
+@router.delete("/{name}", status_code=status.HTTP_204_NO_CONTENT, summary="Delete a project by name")
+async def delete_project(name: str = Path(..., title="Name of the module")):
+    """Delete a module specified by name."""
+
+    logging.debug(f"Deleting module {name}")
+
+
+@router.patch("/{name}", summary="Apply partial updates to a project by name")
+async def patch_project(project: ProjectNew, name: str = Path(..., title="Name of the module")):
+    """Apply partial updates to a project."""
+
+    logging.debug(f"Patching project {name} with {project}")

backend/src/routes/records.py

@@ -0,0 +1,67 @@
+import logging
+from datetime import datetime, timedelta
+
+from fastapi import APIRouter, status, Path
+from src.models.record import RecordStart, RecordInfo
+
+router = APIRouter(prefix="/records", tags=["Records"])
+
+
+@router.get("/", response_model=list[RecordInfo], summary="Get a list of all records")
+async def all_tags() -> list[RecordInfo]:
+    """Returns a list of all records."""
+
+    return [
+        RecordInfo(
+            start=datetime.now() - timedelta(hours=3),
+            end=datetime.now(),
+            project="Uni",
+            tags=["Listening Lectures", "Not be concentrated"]
+        ),
+        RecordInfo(
+            start=datetime.now() - timedelta(hours=7),
+            end=datetime.now() - timedelta(hours=4),
+            project="Uni",
+            tags=["Listening Lectures", "Not be concentrated"]
+        )
+    ]
+
+
+@router.post("/start", status_code=status.HTTP_201_CREATED, summary="Start a record")
+async def start_record(record: RecordStart):
+    """Start a record."""
+
+    print('starting record', record)
+
+
+@router.post("/end", status_code=status.HTTP_204_NO_CONTENT, summary="End a record")
+async def end_record(record: RecordStart):
+    """End a record."""
+
+    print('end record', record)
+
+
+@router.get("/{id}", response_model=RecordInfo, summary="Get a record by id")
+async def get_record(id: str = Path(..., title="ID of the record")) -> RecordInfo:
+    """Fetch a record by id."""
+
+    return RecordInfo(
+        start=datetime.now() - timedelta(hours=3),
+        end=datetime.now(),
+        project="Uni",
+        tags=["Listening Lectures", "Not be concentrated"]
+    )
+
+
+@router.delete("/{id}", status_code=status.HTTP_204_NO_CONTENT, summary="Delete a record by id")
+async def delete_record(id: str = Path(..., title="ID of the record")):
+    """Delete a tag specified by name."""
+
+    logging.debug(f"Deleting record {id}")
+
+
+@router.patch("/{id}", summary="Apply partial updates to a record by id")
+async def patch_record(record: RecordInfo, id: str = Path(..., title="ID of the record")):
+    """Apply partial updates to a record."""
+
+    logging.debug(f"Patching record {id} with {record}")

backend/src/routes/tags.py

@@ -0,0 +1,54 @@
+import logging
+from datetime import datetime, timedelta
+
+from fastapi import APIRouter, status, Path
+from src.models.tag import TagNew, TagInfo
+
+router = APIRouter(prefix="/tags", tags=["Tags"])
+
+
+@router.get("/", response_model=list[TagInfo], summary="Get a list of all tags")
+async def all_tags() -> list[TagInfo]:
+    """Returns a list of all tags."""
+
+    return [
+        TagInfo(
+            name="Listening Lectures",
+            duration=timedelta(days=3, hours=5, minutes=47),
+        ),
+        TagInfo(
+            name="Doing homework",
+            duration=timedelta(hours=14, minutes=10),
+        )
+    ]
+
+
+@router.post("/", status_code=status.HTTP_201_CREATED, summary="Add a tag")
+async def add_tag(tag: TagNew):
+    """Add a tag."""
+
+    print('adding tag', tag)
+
+
+@router.get("/{name}", response_model=TagInfo, summary="Get a project by name")
+async def get_tag(name: str = Path(..., title="Name of the tag")) -> TagInfo:
+    """Fetch a project by name."""
+
+    return TagInfo(
+        name=name,
+        duration=timedelta(hours=3, minutes=2),
+    )
+
+
+@router.delete("/{name}", status_code=status.HTTP_204_NO_CONTENT, summary="Delete a tag by name")
+async def delete_tag(name: str = Path(..., title="Name of the tag")):
+    """Delete a tag specified by name."""
+
+    logging.debug(f"Deleting tag {name}")
+
+
+@router.patch("/{name}", summary="Apply partial updates to a tag by name")
+async def patch_tag(tag: TagNew, name: str = Path(..., title="Name of the tag")):
+    """Apply partial updates to a tag."""
+
+    logging.debug(f"Patching tag {name} with {tag}")