Starting BPMs

Activating a BPM on the Design Page

You do not need to compile any code. You only need to click the run button on the BPM design page.

1. Log in to the application designer by referring to Logging In to the Application Designer.
2. In the navigation pane, choose BPMs.
3. Move the cursor to of the corresponding BPM, and choose Edit.
4. On the BPM design page, click in the upper part of the page to run the BPM.
   On the BPM design page, you can start a BPM in either of the following ways:

   • Custom: Set the start type of the Start diagram element to Custom. The event cause is not specified, that is, the trigger condition does not need to be specified.
     Figure 1 Custom
     
   • Form: A BPM is started using forms or pages. If this option is selected, you need to configure a specific form, standard page, or advanced page.
     Figure 2 Form
     

Starting a BPM Using an API

Start a BPM by calling its RESTful API, http://Default domain name provided by Huawei Cloud Astro Zero/u-route/baas/bp/v2.0.

API URI: POST Huawei Cloud Astro Zero domain name/u-route/baas/bp/v2.0/runtime/instances

For example, you can create and start a BPM instance whose name is createCloudOK_NEW, version is 1.0.1, and four input parameters are contained.

• Example request

  POST Huawei Cloud Astro Zero domain name/u-route/baas/bp/v2.0/runtime/instances
      
   {
      "name":"createCloudOK_NEW",
      "version":"1.0.1",
      "variables":{
          "name":"sun",
          "memorySize":"15",
          "storageSize":"15",
          "expiryDate":"2018-12-12"
      }
  }

• Example response

  {
      "resCode":"0",
      "resMsg":"Success",
      "result":{
          "name":"bpName1",
          "version":"1.0.1",
          "id":"002N000000Sy2NphoRbU",
          "processDefID":"001L000000S8Yi3xG9Gi",
          "interviewLabel":"BP Label 1",
          "nextElem":"subProcess",
          "isTest":true,
          "state":"Dispatched",
          "bpStatus":"New",
          "urgency":0,
          "taskOutcome":"",
          "businessKey":"002N000000Sy2NphoRbU",
          "startTime":"2019-08-27 10:53:04",
          "endTime":"",
          "Ext1":"",
          "Ext2":"",
          "Ext3":"",
          "Ext4":"",
          "Ext5":"",
          "Ext6":"",
          "Ext7":0,
          "Ext8":0,
          "suspended":false,
          "isClosed":false
      }
  }

Starting a BPM in a Script

In the script code, import the script library of a BPM to start the BPM.

1. Create an empty script by referring to Creating a Blank Script.
2. In the script code, import the script library of a BPM to start the BPM.

   import * as bp from "bp";
   //...... (other code)
   const client = bp.newInstanceClient();  
   client.start (BPM name, BPM version, variables defined in the BPM);

   The following is an example script:

   import * as bp from 'bp';
   let client = bp.newInstanceClient();
   let res = client.start("test", "1.0.1", {  "foo": 1,  "bar": 3});

3. Click in the upper part of the page to save the script.
4. Click in the upper part of the page to run the script.
5. Click at the upper right corner of the test window at the bottom of the page to view the output parameters.

   Example output:

   {
       "interviewId": "002N000000FdtN6xwgjI",
       "screen": {
           "allowBack": false,
           "allowFinish": true,
           "allowNext": true,
           "allowPause": false,
           "helpText": "",
           "label": "input phone number",
           "name": "inputphonenumber",
           "pausedText": "",
           "screenFields": [
               {
                   "dataType": "text",
                   "defaultValue": "135xxxxxxxx",
                   "fieldType": "InputField",
                   "helpText": "",
                   "isRequired": false,
                   "label": "phone number",
                   "name": "phoneNumber"
               }
           ]
       }