PingOne Advanced Identity Cloud

Authenticate to Advanced Identity Cloud REST API with access token

You need an access token to authenticate to the following Advanced Identity Cloud REST API endpoints:

Summary of use:

  1. Create a service account in the Advanced Identity Cloud admin UI and download a private key.

  2. Create a JSON Web Token (JWT) and sign it using the private key.

  3. Create an access token using the JWT profile for OAuth 2.0 authorization grant flow.

  4. Set the access token as a bearer token in the Authorization HTTP header for each API request:

    Authorization: Bearer <access-token>

Get an access token

Prerequisites

You need the jose command-line tool to run some of the commands. You can find installation instructions for your particular package manager in https://command-not-found.com/jose.

Step 1: Create a service account and download its private key

  1. Follow the steps in Create a new service account.

    1. In step 9, save the private key as a local file called key.jwk.

    2. Note the ID for the service account you created. An example of an ID is 449d7e27-7889-47af-a736-83b6bbf97ec5.

Step 2: Create and sign a JWT

  1. Set the following variables in your terminal, to be used as claims in a JWT payload:

    1. Set SERVICE_ACCOUNT_ID to hold the ID of the service account. For use in the iss (issuer) and sub (subject) claims.

      $ SERVICE_ACCOUNT_ID="<service-account-id>"(1)
      1 Replace <service-account-id> with the service account ID; for example, 449d7e27-7889-47af-a736-83b6bbf97ec5.

    2. Set AUD to hold the URL (including port number) where the JWT will be used to request the access token. For use in the aud (audience) claim.

      $ AUD='https://<tenant-env-fqdn>:443/am/oauth2/access_token'

    3. Set EXP to hold a 15-minute expiration time for the JWT, expressed as a Unix timestamp. For use in the exp (expiration time) claim.

      $ EXP=$(($(date -u +%s) + 899))
      Service account access tokens have a non-configurable, fixed expiry of 899 seconds (15 minutes), so the previous example sets a timestamp value that matches the fixed expiry. Despite the expiry being non-configurable, you must supply the exp claim, set with a nominal future timestamp, to create an access token successfully.

    4. Set JTI to hold a unique ID for the JWT. For use in the jti (JWT ID) claim.

      $ JTI=$(openssl rand -base64 16)

  2. Combine the claims to create a payload for the JWT:

    $ echo -n "{
    \"iss\":\"${SERVICE_ACCOUNT_ID}\",
    \"sub\":\"${SERVICE_ACCOUNT_ID}\",
    \"aud\":\"${AUD}\",
    \"exp\":${EXP},
    \"jti\":\"${JTI}\"
}" > payload.json

  3. Sign the JWT using the private key you downloaded and saved as key.jwk in step 1a:

    $ jose jws sig -I payload.json -k key.jwk -s '{"alg":"RS256"}' -c -o jwt.txt

Step 3: Get an access token using the JWT profile authorization grant

  1. Request an access token from the /oauth2/access_token endpoint using the JWT:

    $ curl \
--request POST ${AUD} \
--data "client_id=service-account" \(1)
--data "grant_type=urn:ietf:params:oauth:grant-type:jwt-bearer" \(2)
--data "assertion=$(< jwt.txt)" \(3)
--data "scope=<scope>"(4)
    1 The client ID service-account targets the built-in OAuth 2.0 public client for service accounts. The client only allows the JWT profile for OAuth 2.0 authorization grant flow.

    + NOTE: Access the built-in OAuth 2.0 public client using the tenant FQDN. You cannot access it using an Alpha or Bravo realm alias URL or a custom domain URL.
    2 The grant type urn:ietf:params:oauth:grant-type:jwt-bearer represents the JWT profile for OAuth 2.0 authorization grant flow.
    3 The assertion parameter is populated with the output of the signed JWT from step 2c.
    4 Replace <scope> with a scope or a space delimited set of scopes; for example, fr:idc:esv:* or fr:am:* fr:idm:*. Learn more in Service account scopes. The specified scopes must be the same as (or a subset of) the scopes that you assigned to the service account.

  2. Examine the response to find the access token, represented as access_token:

    {
    "access_token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9... ...8ECmkyDJKow8Qp_Tnp_lGNRJzLWi18iUGQrCTtxyTXw",
    "scope": "fr:am:* fr:idm:*",
    "token_type": "Bearer",
    "expires_in": 899
}

Use an access token

To use the access token with the REST API, set it as a bearer token in the Authorization HTTP header for each API request.

The following example uses the access token to get a list of identities:

Show request 
$ curl \
--request GET 'https://<tenant-env-fqdn>/openidm/managed/<realm>_user?_fields=userName,givenName,sn,mail,accountStatus&_prettyPrint=true&_queryFilter=true' \(1)
--header 'Authorization: Bearer <access-token>'(2)
1 Replace <realm> with the realm where you created the access token.
2 Replace <access-token> with the access_token in the authentication response (learn more in Get an access token).
Show response 
{
    "result": [
        {
            "_id": "f413db4c-cebd-4950-81e6-57bdb47921a4",
            "_rev": "0000000016e6754b",
            "userName": "exampleuser",
            "accountStatus": "active",
            "givenName": "Example",
            "sn": "User",
            "mail": "exampleuser@example.com"
        },
        {
            "_id": "15249a65-8f9a-4063-9586-a2465963cee4",
            "_rev": "0000000016e6754b",
            "userName": "exampleuser2",
            "accountStatus": "active",
            "givenName": "Example",
            "sn": "User",
            "mail": "exampleuser2@example.com"
        },
        {
            "_id": "30485bc4-fdbb-4946-8ce4-1a53c6824d92",
            "_rev": "0000000016e6754b",
            "userName": "exampleuser3",
            "accountStatus": "active",
            "givenName": "Example",
            "sn": "User",
            "mail": "exampleuser3@example.com"
        }
    ],
    "resultCount": 3,
    "pagedResultsCookie": null,
    "totalPagedResultsPolicy": "NONE",
    "totalPagedResults": -1,
    "remainingPagedResults": -1
}