def postgres_core(db_session):
return CoreCrudClient(
session=db_session,
item_table=database.Item,
collection_table=database.Collection,
token_table=database.PaginationToken,
)
def api_client(db_session):
return StacApi(
settings=ApiSettings(),
client=CoreCrudClient(session=db_session),
extensions=[
TransactionExtension(client=TransactionsClient(
session=db_session)),
ContextExtension(),
SortExtension(),
FieldsExtension(),
QueryExtension(),
],
)
def postgres_core(reader_connection, writer_connection):
with patch(
"stac_api.clients.postgres.base.PostgresClient.writer_session",
new_callable=PropertyMock,
) as mock_writer:
mock_writer.return_value = writer_connection
with patch(
"stac_api.clients.postgres.base.PostgresClient.reader_session",
new_callable=PropertyMock,
) as mock_reader:
mock_reader.return_value = reader_connection
client = CoreCrudClient()
yield client
SortExtension,
TilesExtension,
TransactionExtension,
)
from stac_api.clients.postgres.core import CoreCrudClient
from stac_api.clients.postgres.session import Session
from stac_api.clients.postgres.transactions import (
BulkTransactionsClient,
TransactionsClient,
)
from stac_api.clients.tiles.ogc import TilesClient
from stac_api.config import PostgresSettings
settings = PostgresSettings()
session = Session(settings.reader_connection_string,
settings.writer_connection_string)
api = StacApi(
settings=settings,
extensions=[
TransactionExtension(client=TransactionsClient(session=session)),
BulkTransactionExtension(client=BulkTransactionsClient(
session=session)),
FieldsExtension(),
QueryExtension(),
SortExtension(),
TilesExtension(TilesClient(session=session)),
],
client=CoreCrudClient(session=session),
)
app = api.app
def create_app(settings: ApiSettings) -> FastAPI:
"""Create a FastAPI app"""
paging_client = PaginationTokenClient()
core_client = CoreCrudClient(pagination_client=paging_client)
app = FastAPI()
inject_settings(settings)
app.debug = settings.debug
app.include_router(
create_core_router(core_client, settings), tags=["Core Endpoints"],
dependencies=[Depends(oauth2_scheme)]
)
add_exception_handlers(app, DEFAULT_STATUS_CODES)
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_headers=["*"],
)
@app.exception_handler(RequestValidationError)
async def validation_exception_handler(request: Request,
exc: RequestValidationError):
return JSONResponse(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
content=jsonable_encoder(
{
"detail": exc.errors(),
"query_params": request.query_params,
"path_params": request.path_params,
}
),
)
if settings.api_extension_is_enabled(ApiExtensions.transaction):
transaction_client = TransactionsClient()
app.include_router(
create_transactions_router(transaction_client, settings),
tags=["Transaction Extension"], dependencies=[Depends(oauth2_scheme)]
)
if settings.add_on_is_enabled(AddOns.tiles):
tiles_client = TilesClient()
app.add_api_route(
name="Get OGC Tiles Resource",
path="/collections/{collectionId}/items/{itemId}/tiles",
response_model=TileSetResource,
response_model_exclude_none=True,
response_model_exclude_unset=True,
methods=["GET"],
endpoint=create_endpoint_with_depends(tiles_client.get_item_tiles, ItemUri),
tags=["OGC Tiles"],
dependencies=[Depends(oauth2_scheme)]
)
app.include_router(create_tiles_router(), prefix="/titiler", tags=["Titiler"], dependencies=[Depends(oauth2_scheme)])
config_openapi(app, settings)
@app.on_event("startup")
async def on_startup():
"""Create database engines and sessions on startup"""
app.state.ENGINE_READER = create_engine(
settings.reader_connection_string, echo=settings.debug
)
app.state.ENGINE_WRITER = create_engine(
settings.writer_connection_string, echo=settings.debug
)
app.state.DB_READER = sessionmaker(
autocommit=False, autoflush=False, bind=app.state.ENGINE_READER
)
app.state.DB_WRITER = sessionmaker(
autocommit=False, autoflush=False, bind=app.state.ENGINE_WRITER
)
@app.on_event("shutdown")
async def on_shutdown():
"""Dispose of database engines and sessions on app shutdown"""
app.state.ENGINE_READER.dispose()
app.state.ENGINE_WRITER.dispose()
@app.middleware("http")
async def create_db_connection(request: Request, call_next):
"""Create a new database connection for each request"""
if "titiler" in str(request.url):
return await call_next(request)
reader = request.app.state.DB_READER()
writer = request.app.state.DB_WRITER()
READER.set(reader)
WRITER.set(writer)
resp = await call_next(request)
reader.close()
writer.close()
return resp
@app.post("/login")
async def login(body: Login):
try:
tokens = await get_tokens(body.username, body.password)
return tokens
except Exception as exception:
raise HTTPException(status_code=400, detail=f"{exception}")
@app.post("/token")
async def get_token(form_data: OAuth2PasswordRequestForm = Depends()):
try:
username = form_data.username
password = form_data.password
tokens = await get_tokens(username, password)
access_token = tokens["access_token"]
return {"access_token": access_token, "token_type": "bearer"}
except Exception as exception:
raise HTTPException(status_code=400, detail=f"{exception}")
mgmt_router = APIRouter()
@mgmt_router.get("/_mgmt/ping")
async def ping():
"""Liveliness/readiness probe"""
return {"message": "PONG"}
app.include_router(mgmt_router, tags=["Liveliness/Readiness"])
return app