Usage¶

Prerequisite¶

IAM Python SDK implement OAuth 2.0 specifications with client credetial flow. Before you can use IAM Python SDK, you need to get Client ID, Client Secret and Base IAM URL from your Admin Portal (AP). To get these values, please read more on this documentation

Init IAM client¶

To use iam-python-sdk in a project, first you need to initiate IAM client:

from iam_python_sdk import Config, NewDefaultClient

config = Config(
    BaseURL="<Base IAM URL>",
    ClientID="<Client ID>",
    ClientSecret="<Client Secret>",
)
client = NewDefaultClient(config)

Grant access token¶

To get access token, you need to call ClientTokenGrant method:

from iam_python_sdk.errors import ClientTokenGrantError

try:
    client.ClientTokenGrant()
    # Client token grant success
except ClientTokenGrantError as e:
    # Cant get access token from IAM
    pass

You can check the access token using ClientToken function:

access_token = client.ClientToken()

Note

You can use this access token to access many AccelByte services based on permission and role that you have set before on AP.

Validate access token¶

There are two methods to validate access token. First, you can validate access token live on IAM service using ValidateAccessToken function:

from iam_python_sdk.errors import ValidateAccessTokenError

try:
    is_token_valid = client.ValidateAccessToken(access_token)
    if is_token_valid:
        # Token is valid
        pass
except ValidateAccessTokenError as e:
    # Cant validate access token on IAM service
    pass

Second, you can validate access token localy using JWKs and revocation list. To do local validation, once you need to enable local validation using StartLocalValidation method:

from iam_python_sdk.errors import StartLocalValidationError

try:
    client.StartLocalValidation()
except StartLocalValidationError as e:
    # Cant enable local validation
    pass

Then, you can validate access token locally using ValidateAndParseClaims function:

from iam_python_sdk.errors import NoLocalValidationError, ValidateAndParseClaimsError

try:
    claims = client.ValidateAndParseClaims(access_token)
    # Access token is valid
except NoLocalValidationError as e:
    # You need to call StartLocalValidation method once
    pass
except ValidateAndParseClaimsError as e:
    # Cant validate and parse claim locally
    pass

Note

Store the claims output if you need to validate it’s permission, role, or other properties.

Validate permission¶

For example, you have a resource permission that needs NAMESPACE:{namespace}:USER:{userId} resource string and 4 [UPDATE] action to access.

Using claims you can verify if the token owner is allowed to access the resource using ValidatePermission function:

from iam_python_sdk.errors import ValidatePermissionError

try:
    required_permission = Permission.loads(
        {"Action": 4, "Resource": "NAMESPACE:{namespace}:USER:{userId}"}
    )
    permission_resource = {"{namespace}": "sample-namespace", "{userId}": "sample-userid"}
    valid_permission = client.ValidatePermission(
        claims, required_permission, permission_resource
    )
    if valid_permission:
        # Permission is valid and token owner is allowed to access the resource
        pass
except ValidatePermissionError as e:
    # Cant get role permission from IAM service
    pass

Validate role and scope¶

To validate token owner have a required role ID, you can use ValidateRole function:

required_role_id = 'sample_role_id_12345'
valid_role = client.ValidateRole(required_role_id, claims)
if valid_role:
    # Role is valid and token owner have the required role id
    pass

To validate token owner have required scope, you can use ValidateScope method:

from iam_python_sdk.errors import ValidateScopeError

try:
    required_scope = 'sample_scope'
    client.ValidateScope(required_scope, claims)
    # Scope is valid and token owner have the required scope
except ValidateScopeError as e:
    # Scope is invalid
    pass

Check Ban¶

To check if user have been banned, you can use HasBan function:

ban_status = client.HasBan(claims, 'sample-ban-type')
if ban_status:
    # User have been banned
    pass

Validate audience¶

To validate JWT claims have a valid audience, you can use ValidateAudience method:

from iam_python_sdk.errors import ValidateAudienceError

try:
    client.ValidateAudience(claims)
    # JWT claims have valid audience
except ValidateAudienceError as e:
    # JWT claims have invalid audience
    pass

Note

If no audience is found in the claims, ValidateAudience method will not check the audience and assume that the audience in JWT claims is valid [https://tools.ietf.org/html/rfc7519#section-4.1.3]

Verify user info¶

Email status¶

You can check user email verification status using UserEmailVerificationStatus function:

email_verified = client.UserEmailVerificationStatus(claims)
if email_verified:
    # User's email have been verified
    pass

Phone status¶

You can check user phone verification status using UserPhoneVerificationStatus function:

phone_verified = client.UserPhoneVerificationStatus(claims)
if phone_verified:
    # User's phone have been verified
    pass

Anonymity status¶

You can check user anonymity status using UserAnonymousStatus function:

user_anonymous = client.UserAnonymousStatus(claims)
if user_anonymous:
    # User is anonymous
    pass