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This section explains how to attach a custom workflow to the user signup operation in the API Manager. First, see Workflow Extensions for information on different types of workflow executors.

Tip

Before you begin, if you have changed the API Manager's default user and role, make sure you do the following changes:

  • Give the correct credentials in the <BPS_HOME>/repository/conf/epr files.
  • Change the credentials of the workflow configurations in the registry resource _system/governance/apimgt/applicationdata/workflow-extensions.xml.
  • Point the database that has the API Manager user permissions to BPS.
  • Share any LDAPs, if exist.
  • Change the user credentials in <APIM_HOME>/repository/conf/api_manager.xml file.
  • Change the .ht file of the relevant human task.
  • Change the allowedRoles parameter in the <APIM_HOME>/repository/deployment/server/jaggeryapps/admin-dashboard/site/conf/site.json file.

Configuring the Business Process Server

  1. Download Download WSO2 Business Process Server.  

  2. Set an Set an offset of 2 to the default BPS port in the <BPS_HOME>/repository/conf/carbon.xml file file. This prevents port conflicts that occur when you start more than one WSO2 product on the same server. Also see see Changing the Default Ports with Offset.

    Code Block
    languagexml
    <Offset>2</Offset>
    Tip

    Tip: If you change the BPS port offset to a value other than 2 or run the API Manager and BPS on different machines (therefore, want to set thehostname to a different value than localhost), you do the following:

    • Search and replace the value 9765 in all the files (.epr) inside <APIM_HOME>/business-processes folder with the new port (9763 + port offset.)Search and replace port 9445 in <AM

     

  3. Open the <BPS_HOME>/repository/

    deployment/server/jaggeryapps/admin-dashboard/site/conf/site.json file with the new port (9443 + port offset.)

    conf/humantask.xml file and <BPS_HOME>/repository/conf/b4p-coordination-config.xml file and set the TaskCoordinationEnabled property to true.

     

    Code Block
    languagexml
    <TaskCoordinationEnabled>true</TaskCoordinationEnabled>

  4. Copy the following from the <APIM_HOME>/business-processes/epr folder to the <BPS_HOME>/repository/conf/epr folder. If  If the <BPS_HOME>/repository/conf/epr folder isn't there, please create it.

    • UserSignupService.epr
    • UserSignupProcess.epr

  5. Start the BPS server and log in to its management console (https://<Server Host>:9443+<port offset>/carbon).  

  6. Select Add under the Processes menu and upload the <APIM_HOME>/business-processes/user-signup/BPEL/UserSignupApprovalProcess_1.0.0.zip file to BPS. This is the business process archive file.
    Image Modified
  7. Select Add under the Human Tasks menu and upload  the <APIM_HOME>/business-processes/user-signup/HumanTask/UserApprovalTask-1.0.0.zip file to BPS. This is the human task archived file.

Configuring the API Manager

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Open the <APIM_HOME>/repository/deployment/server/jaggeryapps/admin-dashboard/site/conf/site.json

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 file and configure "

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workFlowServerURL"

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 under "workflows"

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 to point to the BPS server

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(e.g. "workFlowServerURL": "https://localhost:9445/services/")

Engaging the WS Workflow Executor in the API Manager

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