├── Pipfile
├── README.md
├── main.py
├── models.py
└── test.py


/Pipfile:
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 1 | [[source]]
 2 | url = "https://pypi.org/simple"
 3 | verify_ssl = true
 4 | name = "pypi"
 5 | 
 6 | [packages]
 7 | fastapi = "*"
 8 | uvicorn = "*"
 9 | firebase-admin = "*"
10 | pyrebase4 = "*"
11 | requests = "*"
12 | 
13 | [dev-packages]
14 | 
15 | [requires]
16 | python_version = "3.11"
17 | 


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/README.md:
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 1 | # FastAPI_firebase_auth
 2 | A very simple REST API built to demonstrate how to use Firebase Authentication with FastAPI
 3 | 
 4 | 
 5 | ## How to run 
 6 | -  Install requirements with ```pipenv install ```
 7 | 
 8 | - Get Firebase Auth credentials and also Service account keys
 9 | 
10 | - Run API with ```python main.py```


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/main.py:
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 1 | import uvicorn
 2 | import pyrebase
 3 | from fastapi import FastAPI
 4 | from models import LoginSchema,SignUpSchema
 5 | from fastapi.responses import JSONResponse
 6 | from fastapi.exceptions import HTTPException
 7 | from fastapi.requests import Request
 8 | 
 9 | app = FastAPI(
10 |     description="This is a simple app to show Firebase Auth with FastAPI",
11 |     title="Firebase Auth",
12 |     docs_url="/"
13 | )
14 | 
15 | 
16 | 
17 | import firebase_admin
18 | from firebase_admin import credentials,auth
19 | 
20 | 
21 | if not firebase_admin._apps:
22 |     cred = credentials.Certificate("serviceAccountKey.json") #get your service account keys from firebase
23 |     firebase_admin.initialize_app(cred)
24 | 
25 | 
26 | firebaseConfig = {
27 |  "message":"Get your config from firebase"
28 | }
29 | 
30 | firebase = pyrebase.initialize_app(firebaseConfig)
31 | 
32 | 
33 | @app.post('/signup')
34 | async def create_an_account(user_data:SignUpSchema):
35 |     email = user_data.email
36 |     password = user_data.password
37 | 
38 |     try:
39 |         user = auth.create_user(
40 |             email = email,
41 |             password = password
42 |         )
43 | 
44 |         return JSONResponse(content={"message" : f"User account created successfuly for user {user.uid}"},
45 |                             status_code= 201
46 |                )
47 |     except auth.EmailAlreadyExistsError:
48 |         raise HTTPException(
49 |             status_code=400,
50 |             detail= f"Account already created for the email {email}"
51 |         )
52 | 
53 | 
54 | 
55 | 
56 | 
57 | @app.post('/login')
58 | async def create_access_token(user_data:LoginSchema):
59 |     email = user_data.email
60 |     password = user_data.password
61 | 
62 |     try:
63 |         user = firebase.auth().sign_in_with_email_and_password(
64 |             email = email,
65 |             password = password
66 |         )
67 | 
68 |         token = user['idToken']
69 | 
70 |         return JSONResponse(
71 |             content={
72 |                 "token":token
73 |             },status_code=200
74 |         )
75 | 
76 |     except:
77 |         raise HTTPException(
78 |             status_code=400,detail="Invalid Credentials"
79 |         )
80 | 
81 | @app.post('/ping')
82 | async def validate_token(request:Request):
83 |     headers = request.headers
84 |     jwt = headers.get('authorization')
85 | 
86 |     user = auth.verify_id_token(jwt)
87 | 
88 |     return user["user_id"]
89 | 
90 | if __name__ == "__main__":
91 |     uvicorn.run("main:app",reload=True)


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/models.py:
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 1 | from pydantic import BaseModel
 2 | 
 3 | 
 4 | 
 5 | class SignUpSchema(BaseModel):
 6 |     email:str
 7 |     password:str
 8 | 
 9 |     class Config:
10 |         schema_extra ={
11 |             "example":{
12 |                 "email":"sample@gmail.com",
13 |                 "password":"samplepass123"
14 |             }
15 |         }
16 | 
17 | 
18 | class LoginSchema(BaseModel):
19 |     email:str
20 |     password:str
21 | 
22 |     class Config:
23 |         schema_extra ={
24 |             "example":{
25 |                 "email":"sample@gmail.com",
26 |                 "password":"samplepass123"
27 |             }
28 |         }
29 | 


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/test.py:
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 1 | import requests
 2 | 
 3 | token = "eyJhbGciOiJSUzI1NiIsImtpZCI6IjhkMDNhZTdmNDczZjJjNmIyNTI3NmMwNjM2MGViOTk4ODdlMjNhYTkiLCJ0eXAiOiJKV1QifQ.eyJpc3MiOiJodHRwczovL3NlY3VyZXRva2VuLmdvb2dsZS5jb20vZmFzdGFwaWF1dGgtM2YyNmQiLCJhdWQiOiJmYXN0YXBpYXV0aC0zZjI2ZCIsImF1dGhfdGltZSI6MTY4NzU0MTYzNSwidXNlcl9pZCI6Im9DTUozVXZ0MGxWVGFYSlF3Nmt0MHhKbTNTdDIiLCJzdWIiOiJvQ01KM1V2dDBsVlRhWEpRdzZrdDB4Sm0zU3QyIiwiaWF0IjoxNjg3NTQxNjM1LCJleHAiOjE2ODc1NDUyMzUsImVtYWlsIjoic2FtcGxlQGdtYWlsLmNvbSIsImVtYWlsX3ZlcmlmaWVkIjpmYWxzZSwiZmlyZWJhc2UiOnsiaWRlbnRpdGllcyI6eyJlbWFpbCI6WyJzYW1wbGVAZ21haWwuY29tIl19LCJzaWduX2luX3Byb3ZpZGVyIjoicGFzc3dvcmQifX0.ht9CELI9qRJJhQ1a4wMpVB_b_NzMolgIYVN3uEQDaVC3p-WEmtuh_eySPta7GkBaVErmzDUxyzun9xsm7y01s51E7S3vptYYKh3m_g87_hbaOmuflYUuCigDMaEDVBJX-nd4LoaTh0jLogScf05_3oxAQlz---eztUoo9r-qigIMyLHz7e7B_7mT3Te77OYHd5a9VbXFBk-2JmLU0WqjKsIpsY_MJwSGbHKmi6O6j7_WumHxneK4LYx56SzZZEppouU4VzY7gdXU3JQlHFu5Q852h8CP-TB9OkBFjsc4xlOMkTDpEh8ANvXYxvYp5mRMyXvPwPcJjKggnyaOMy8e-Q"
 4 | 
 5 | 
 6 | def test_validate_endpoint():
 7 |     headers = {
 8 |         'authorization':token
 9 |     }
10 | 
11 |     response = requests.post(
12 |         "http://127.0.0.1:8000/ping",
13 |         headers=headers
14 |     )
15 | 
16 |     return response.text
17 | 
18 | 
19 | print(test_validate_endpoint())
20 | 
21 | 
22 | 


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