# st.doForComments

This action allows you to apply the actions specified in its `then` parameter to each comment provided by the parent action.

> The comments this action iterates over are the ones returned by the parent [st.retrievePostComments](/docs/action-st-retrieve-post-comments) action, so their number is controlled by its `limit` parameter.

## Constraints

> ⏺️ **Root Start:** not allowed.

> ⬆️ **Parent Actions:** [st.retrievePostComments](/docs/action-st-retrieve-post-comments).

> ⬇️ **Child Actions:** [st.openComment](/docs/action-st-open-comment), [st.reactToComment](/docs/action-st-react-to-comment), [st.replyToComment](/docs/action-st-reply-to-comment).

## Parameters

```json
{
  "actionType": "st.doForComments",
  "then": { ... }
}
```

- `then` – object or array of child actions to apply to each comment from the parent action.

## Result options

This action doesn't produce its own distinct result. The effects are visible in the comments that were involved, as they will contain a `then` field with the results of the applied actions. See usage examples for more details.

## Usage examples

1. **Liking the 5 most relevant comments on a post:**

**Workflow:**

```json
{
  "actionType": "st.retrievePostComments",
  "postUrl": "https://www.linkedin.com/posts/post1",
  "limit": 5,
  "sort": "mostRelevant",
  "then": {
    "actionType": "st.doForComments",
    "then": {
      "actionType": "st.reactToComment",
      "type": "like"
    }
  }
}
```

**Completion:**

```json
{
  "actionType": "st.retrievePostComments",
  "success": true,
  "data": [
    {
      ...
      "then": {
        "actionType": "st.reactToComment",
        "success": true
      }
    },
    {
      ...
      "then": {
        "actionType": "st.reactToComment",
        "success": true
      }
    }
  ]
}
```

2. **Reacting to and replying to each comment through the `st.openComment` wrapper:**

**Workflow:**

```json
{
  "actionType": "st.retrievePostComments",
  "postUrl": "https://www.linkedin.com/posts/post1",
  "limit": 3,
  "then": {
    "actionType": "st.doForComments",
    "then": {
      "actionType": "st.openComment",
      "then": [
        {
          "actionType": "st.reactToComment",
          "type": "celebrate"
        },
        {
          "actionType": "st.replyToComment",
          "text": "Well said, thanks for sharing!"
        }
      ]
    }
  }
}
```

**Completion:**

```json
{
  "actionType": "st.retrievePostComments",
  "success": true,
  "data": [
    {
      ...
      "then": {
        "actionType": "st.openComment",
        "success": true,
        "data": {
          "commentUrn": "urn:li:comment:(urn:li:activity:1234567890123456789,9876543210)",
          "commentUrl": "https://www.linkedin.com/feed/update/urn:li:activity:1234567890123456789/?dashCommentUrn=urn%3Ali%3Afsd_comment%3A(9876543210%2Curn%3Ali%3Aactivity%3A1234567890123456789)",
          "then": [
            {
              "actionType": "st.reactToComment",
              "success": true
            },
            {
              "actionType": "st.replyToComment",
              "success": true,
              "data": {
                "commentUrn": "urn:li:comment:(urn:li:activity:1234567890123456789,1122334455)",
                "commentUrl": "https://www.linkedin.com/feed/update/urn:li:activity:1234567890123456789/?dashCommentUrn=urn%3Ali%3Afsd_comment%3A(1122334455%2Curn%3Ali%3Aactivity%3A1234567890123456789)"
              }
            }
          ]
        }
      }
    }
  ]
}
```