QPR ProcessAnalyzer API

QPR ProcessAnalyzer API can be used to build integrations with other applications and automate operations in the process mining system.

QPR ProcessAnalyzer API is a JSON based API following the REST design principles. All methods (except the token and serverinfo) require a prior login to establish a session. The session is initialized with the token call with username and password, and the access token is returned as a response for a successful login. The methods requiring prior authenticated session, need to have a HTTP request header Authorization with value Bearer <access token> to identify the session.

Url for calling the API has the following form (replace the server hostname with a correct one):

https://customer.onqpr.com/qprpa/api/<methodName>

Following methods are available:

Method	Description
token	Login user using username and password and get a session token as a response.
api/signout	Logs out a user session.
api/expression	Runs an expression.
api/expression/query	Runs query written using the expression language and returns result data as response.
api/filters	Get filters for all models or filters for a single model.
api/serverinfo	Returns common system information needed by UI, such as the default UI language and in whether SSO has been configured.
api/importfile	Import data into datatable from .csv, .xes or .pacm file.
api/usersettings	Save user specific settings to the server.
api/operations/terminate	Stops the defined tasks (by the task id) to save computing resources.
api/analysis/cancel	Stops currently running tasks (by the task identifier) to save computing resources.
api/saml2/acs	Identity provider (IdP) will send the SAML 2.0 assertion to this endpoint, which responses with 302 to redirect to QPR ProcessAnalyzer UI.
api/saml2	Returns the SAML 2.0 service provider (SP) metadata, if SAML 2.0 authentication has been configured.

In addition, there are methods for

• moving and deleting workspace elements
• projects
• dashboards
• models
• datatables
• scripts
• users, groups and roles

Examples

Trigger script run

Following function written in Python starts a script in QPR ProcessAnalyzer by calling the REST API. The function does following: (1) login to QPR ProcessAnalyzer, (2) start the script, and (3) log out. The call just starts the script without waiting for it to complete (asynchronous behavior).

def startQprProcessAnalyzerScript(serverUrl: str, username: str, password: str, scriptId: int):
  loginData = {
      "grant_type": "password",
      "username": username,
      "password": password
  }
  loginResponse = requests.post(
    url = serverUrl + "/token",
    data = loginData
  )
  loginResponse.raise_for_status()
  sessionToken = loginResponse.json().get("access_token")
  
  startScriptResponse = requests.post(
    url = serverUrl + "/api/scripts/run/" + str(scriptId),
    headers = {
      "Authorization": "Bearer " + sessionToken,
      "Content-type": "application/json"
    }
  )
  startScriptResponse.raise_for_status()

  logOutResponse = requests.post(
    url = serverUrl + "/api/signout",
    headers = {
      "Authorization": "Bearer " + sessionToken,
      "Content-type": "application/json"
    }
  )
  logOutResponse.raise_for_status()

The function can be called as follows:

startQprProcessAnalyzerScript(
  serverUrl = "https://server.onqpr.com/qprpa",
  username = "qpr",
  password = "demo",
  scriptId = 1
)

The script id can be found in the scripts list in the Workspace.

Synchronize users and group memberships

Following function written in Python updates QPR ProcessAnalyzer users and group memberships based on the provided dataset. This script can be extended to fetch the user data from an external source (e.g., Azure AD) to implement a complete user management integration between the systems.

The script performs following steps:

1. Parse the provided dataset.
2. Read all users from QPR ProcessAnalyzer including which groups the users belong to. (POST /api/expression/query)
3. Read all groups from QPR ProcessAnalyzer. (POST /api/expression/query)
4. Create new users (that exist in the dataset but not in QPR ProcessAnalyzer. (POST /api/users)
5. Inactivate users (that don't exist dataset but do exist in QPR ProcessAnalyzer). (PUT /api/users)
6. Add users to groups they should belong to but they aren't yet members. (PUT /api/users/memberships)
7. Remove users from groups they should not belong to but they are members. (DELETE /api/users/memberships)

Users are queried as follows:

{
   "Dimensions":null,
   "Values":[
      {
         "Name":"Id",
         "Expression":"ToString(Id)"
      },
      {
         "Name":"Name",
         "Expression":"Name"
      },
      {
         "Name":"Groups",
         "Expression":"ToJson(OrderByValue(Groups.Id))"
      }
   ],
   "Root":"Users",
   "ContextType":"generic"
}

Groups are queries as follows:

{
   "Dimensions":null,
   "Values":[
      {
         "Name":"Id",
         "Expression":"Id"
      },
      {
         "Name":"Name",
         "Expression":"Name"
      }
   ],
   "Root":"UserGroups",
   "ContextType":"generic"
}

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