This app communicates with Keycloak to provide some user management functionality, as well as serving as Institutions API to retrieve information about institutions.
If you have an inquiry or suggestion for the user and financial institutions management API or any SBL related code, please reach out to us at [email protected]
- Poetry is used as the package management tool. Once installed, just running
poetry installin the root of the project should install all the dependencies needed by the app. - Docker is used for local development where ancillary services will run.
- jq is used for parsing API responses in the curl command examples shown below
SBL Project Repo contains the docker-compose.yml to run the ancillary services.
- Not all services need to run, this module
regtech-user-fi-managementis part of the docker compose file, which doesn't need to be ran in docker for local development. - Issuing
docker compose up -d pg keycloakwould start the necessary services (postgres, and keycloak)
$ cd ~/Projects/sbl-project
$ docker compose up -d pg keycloak
[+] Running 3/3
⠿ Network sbl-project_default Created 0.2s
⠿ Container sbl-project-pg-1 Started 2.6s
⠿ Container sbl-project-keycloak-1 Started 13.4s
On app startup, alembic creates all the tables and seeds the lookup tables. Running the below script with the 'reset' argument will reset the db: db_revisions/dev_setup.sh reset Passing the 'reset-then-seed' argument to the script will reset the db and then seed the lookup tables: db_revisions/dev_setup.sh reset-then-seed
Once the Dependencies, and Pre-requisites have been satisfied:
- All dependencies installed
- Postgres and keycloak services started
we can run the app by going into the src folder, then issue the poetry run command:
$ poetry run uvicorn main:app --reload --port 8888
INFO: Will watch for changes in these directories: ['/Projects/regtech-user-fi-management/src']
INFO: Uvicorn running on http://127.0.0.1:8888 (Press CTRL+C to quit)
INFO: Started reloader process [37993] using StatReload
INFO: Started server process [37997]
INFO: Waiting for application startup.
INFO: Application startup complete.- .env.template is added to allow VS Code to search the correct path for imports when writing tests, just copy the .env.template file into
.envfile locally - src/.env.template is added as the template for the app's environment variables, appropriate values are already provided in .env.local for local development. If
ENVvariable with default ofLOCALis changed, copy this template intosrc/.env, and provide appropriate values, and set all listed empty variables in the environment.
Most of the functionalities provided in this module requires authentication, namely Access Tokens, these can be retrieved from Keycloak by simulating a login flow.
The Keycloak service should come pre-configured with 2 users:
user1with the passworduseradmin1with the passwordadmin
To retrieve the an access token we can issue a curl command:
curl 'localhost:8880/realms/regtech/protocol/openid-connect/token' \
-H 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'username=user1' \
--data-urlencode 'password=user' \
--data-urlencode 'grant_type=password' \
--data-urlencode 'client_id=regtech-client' | jq -r '.access_token'For local development, we can retrieve the access token and store it to local variable then use this variable on API calls.
export RT_ACCESS_TOKEN=$(curl 'localhost:8880/realms/regtech/protocol/openid-connect/token' \
-X POST \
-H 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'username=user1' \
--data-urlencode 'password=user' \
--data-urlencode 'grant_type=password' \
--data-urlencode 'client_id=regtech-client' | jq -r '.access_token')There are 2 major functionalities provided by this app, one serves as the integration with Keycloak, and the other to integrate with Institutions database to show institutions' information. Below are the routers for these functionalities. As mentioned above, authentication is required to access the endpoints.
- The admin router with
/v1/adminpath manages Keycloak integration, allow for things like update user information (i.e. First Name, Last Name), and associating with institutions- GET
/v1/admin/medisplays the current user's info based on the auth token provided - PUT
/v1/admin/meallows for basic info update:{ "firstName": "Test", "lastName": "User" } - PUT
/v1/admin/me/institutionsallows for self association with institutions using LEI["TEST1LEI", "TEST2LEI"]
- Full flow example from getting token to retrieving information about logged in user:
export RT_ACCESS_TOKEN=$(curl 'localhost:8880/realms/regtech/protocol/openid-connect/token' \ -X POST \ -H 'Content-Type: application/x-www-form-urlencoded' \ --data-urlencode 'username=user1' \ --data-urlencode 'password=user' \ --data-urlencode 'grant_type=password' \ --data-urlencode 'client_id=regtech-client' | jq -r '.access_token') curl localhost:8888/v1/admin/me -H "Authorization: Bearer ${RT_ACCESS_TOKEN}" | jq -r '.'
- GET
- The institutions router with
/v1/institutionspath retrieves institutions information- GET
/v1/institutionsretrieves all institutions in the database- three accepted parameters allows for filtering and pagination:
page: page of the results, this is index based, so starts with0count: the number of results per page, by default this is100domain: the filter parameter to look for institutions with specified domain
- three accepted parameters allows for filtering and pagination:
- POST
/v1/institutionscreates or updates an institution with its LEI as the key:{ "lei": "TESTBANK123", "name": "Test Bank 123" } - POST
/v1/institutions/{LEI}/domainsadds domains to the institution:[ { "domain": "test123.bank" }, { "domain": "bank123.test" } ] - Full flow example from token retrieval to creating / updating an institution:
export RT_ACCESS_TOKEN=$(curl 'localhost:8880/realms/regtech/protocol/openid-connect/token' \ -X POST \ -H 'Content-Type: application/x-www-form-urlencoded' \ --data-urlencode 'username=admin1' \ --data-urlencode 'password=admin' \ --data-urlencode 'grant_type=password' \ --data-urlencode 'client_id=regtech-client' | jq -r '.access_token') curl localhost:8888/v1/institutions/ -X POST \ -H "Authorization: Bearer ${RT_ACCESS_TOKEN}" \ -H 'Content-Type: application/json' \ -d '{"lei": "TESTBANK123", "name": "Test Bank 123"}' | jq -r '.'
- GET
For both these routers, the needed roles to access each endpoint is decorated with the @requires decorator, i.e. @requires(["query-groups", "manage-users"]). Refer to institutions router for the decorator example; these roles corresponds to Keycloak's roles.
- Install Poetry, Docker and jq
- Checkout SBL Project Repo and SBL User and Financial Institution Management API Repo
- Open a terminal, and run keycloak and postqres
# go to sbl-project repo root directory
cd ~/Projects/sbl-project
# bring up postgres and keycloak
docker compose up -d pg keycloak
[+] Running 3/3
⠿ Network sbl-project_default Created 0.2s
⠿ Container sbl-project-pg-1 Started 2.6s
⠿ Container sbl-project-keycloak-1 Started 13.4s- Open another terminal, and run keycloak and postqres
# go to regtech-user-fi-management's src directory
cd ~/Projects/regtech-user-fi-management/src
# run local api server
poetry run uvicorn main:app --reload --port 8888
INFO: Will watch for changes in these directories: ['/Users/harjatia/Projects/regtech-user-fi-management/src']
INFO: Uvicorn running on http://127.0.0.1:8888 (Press CTRL+C to quit)
INFO: Started reloader process [42182] using StatReload
INFO: Started server process [42186]
INFO: Waiting for application startup.
INFO: Application startup complete.
INFO: 127.0.0.1:51374 - "GET /v1/admin/me HTTP/1.1" 200 OK- Using first terminal or new terminal, run and test API Calls
# Retrieve and store token key
export RT_ACCESS_TOKEN=$(curl 'localhost:8880/realms/regtech/protocol/openid-connect/token' \
-X POST \
-H 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'username=admin1' \
--data-urlencode 'password=admin' \
--data-urlencode 'grant_type=password' \
--data-urlencode 'client_id=regtech-client' | jq -r '.access_token')
# test token key
curl localhost:8888/v1/admin/me -H "Authorization: Bearer ${RT_ACCESS_TOKEN}" | jq -r '.'
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 801 100 801 0 0 7545 0 --:--:-- --:--:-- --:--:-- 8010
{
"claims": {
"exp": 1697482762,
"iat": 1697482462,
"jti": "3380a7bb-765b-4197-a500-19eb424518ce",
"iss": "http://localhost:8880/realms/regtech",
"aud": [
"realm-management",
"account"
],
"sub": "631dbab3-4dcf-46bf-b283-55c18a3722e6",
"typ": "Bearer",
"azp": "regtech-client",
"session_state": "c8d4b4c8-3d3f-41b3-aebc-b4cab3b314eb",
"allowed-origins": [
"*"
],
"realm_access": {
"roles": [
"offline_access",
"uma_authorization",
"default-roles-regtech"
]
},
"resource_access": {
"realm-management": {
"roles": [
"manage-users",
"query-groups"
]
},
"account": {
"roles": [
"manage-account"
]
}
},
"scope": "email profile",
"sid": "c8d4b4c8-3d3f-41b3-aebc-b4cab3b314eb",
"email_verified": false,
"preferred_username": "admin1",
"given_name": "",
"family_name": ""
},
"name": "",
"username": "admin1",
"email": "",
"id": "631dbab3-4dcf-46bf-b283-55c18a3722e6",
"institutions": []
}This module uses the FastAPI framework, which affords us built-in Swagger UI, this can be accessed by going to http://localhost:8888/docs
- Note: The
Try It Outfeature does not work within the Swagger UI due to the use ofAuthenticationMiddleware