## Create a new workflow instance

`client.Workflows.Instances.New(ctx, workflowName, params) (*InstanceNewResponse, error)`

**post** `/accounts/{account_id}/workflows/{workflow_name}/instances`

Creates a new instance of a workflow, starting its execution.

### Parameters

- `workflowName string`

- `params InstanceNewParams`

  - `AccountID param.Field[string]`

    Path param

  - `InstanceID param.Field[string]`

    Body param

  - `InstanceRetention param.Field[InstanceNewParamsInstanceRetention]`

    Body param

    - `ErrorRetention InstanceNewParamsInstanceRetentionErrorRetentionUnion`

      Specifies the duration in milliseconds or as a string like '5 minutes'.

      - `UnionInt`

      - `UnionString`

    - `SuccessRetention InstanceNewParamsInstanceRetentionSuccessRetentionUnion`

      Specifies the duration in milliseconds or as a string like '5 minutes'.

      - `UnionInt`

      - `UnionString`

  - `Params param.Field[unknown]`

    Body param

### Returns

- `type InstanceNewResponse struct{…}`

  - `ID string`

  - `Status InstanceNewResponseStatus`

    - `const InstanceNewResponseStatusQueued InstanceNewResponseStatus = "queued"`

    - `const InstanceNewResponseStatusRunning InstanceNewResponseStatus = "running"`

    - `const InstanceNewResponseStatusPaused InstanceNewResponseStatus = "paused"`

    - `const InstanceNewResponseStatusErrored InstanceNewResponseStatus = "errored"`

    - `const InstanceNewResponseStatusTerminated InstanceNewResponseStatus = "terminated"`

    - `const InstanceNewResponseStatusComplete InstanceNewResponseStatus = "complete"`

    - `const InstanceNewResponseStatusWaitingForPause InstanceNewResponseStatus = "waitingForPause"`

    - `const InstanceNewResponseStatusWaiting InstanceNewResponseStatus = "waiting"`

  - `VersionID string`

  - `WorkflowID string`

### Example

```go
package main

import (
  "context"
  "fmt"

  "github.com/cloudflare/cloudflare-go"
  "github.com/cloudflare/cloudflare-go/option"
  "github.com/cloudflare/cloudflare-go/workflows"
)

func main() {
  client := cloudflare.NewClient(
    option.WithAPIToken("Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY"),
  )
  instance, err := client.Workflows.Instances.New(
    context.TODO(),
    "x",
    workflows.InstanceNewParams{
      AccountID: cloudflare.F("account_id"),
    },
  )
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", instance.ID)
}
```

#### Response

```json
{
  "errors": [
    {
      "code": 0,
      "message": "message"
    }
  ],
  "messages": [
    {
      "code": 0,
      "message": "message"
    }
  ],
  "result": {
    "id": "x",
    "status": "queued",
    "version_id": "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
    "workflow_id": "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e"
  },
  "success": true,
  "result_info": {
    "count": 0,
    "per_page": 0,
    "total_count": 0,
    "cursor": "cursor",
    "page": 0
  }
}
```