Create Large Amount of Work Items in TFS Using Javascript REST API

Question

I need to create around 6000 work items via my TFS extension. I use typescript and REST API in my extension.

below is the code I use to create work item

 var ops = [
            {
                path: "/fields/System.Title",
                op: "add",
                value: "Hello world"
            }
        ];

    var options = {
        url: 'http://localhost:8080/tfs/DefaultCollection/Agile Git/_apis/wit/workItems/$Bug?api-version=2.2',
        username: 'username',
        password: 'password',
        domain: 'domain',
        method: 'PATCH',
        headers: {
          'Content-Type': 'application/json-patch+json'
        },
        body: JSON.stringify(ops)
    };

    httpntlm.patch(options, function(err,res) {
                console.log("patch complete");
                console.log(res.body);
    })

I iterate details for each work item and try to create bulk of work items, with time intervals (like 100 work items batches) . But creation process fails for many of work items with timeout problems (I was able to generate around 1000 work items). Is there recommended method to create / edit work items. Please help.

Answer 1

Using Work item batch api instead:

For example:

http://[collection url]/_apis/wit/$batch?api-version=1.0

Body:

[
  {
    "method": "PATCH",
    "uri": "/ScrumStarain/_apis/wit/workItems/$Product Backlog Item?api-version=1.0",
    "headers": {
      "Content-Type": "application/json-patch+json"
    },
    "body": [
      {
        "op": "add",
        "path": "/fields/System.Title",
        "value": "apip1"
      },
      {
        "op": "add",
        "path": "/id",
        "value": "-1"
      }
    ]
  },
  {
    "method": "PATCH",
    "uri": "/ScrumStarain/_apis/wit/workItems/$Task?api-version=1.0",
    "headers": {
      "Content-Type": "application/json-patch+json"
    },
    "body": [
      {
        "op": "add",
        "path": "/fields/System.Title",
        "value": "apip2"
      },
      {
        "op": "add",
        "path": "/id",
        "value": "-2"
      }

    ]
  }
]

More information, you can refer to: Work item batch operations