Reactions

Adding Reactions

Reactions are a special kind of data that can be used to capture user interaction with specific activities. Common examples of reactions are likes, comments, and upvotes. Reactions are automatically returned to feeds’ activities at read time when the reactions parameters are used.

Reactions are always related to activities; in order to add a reaction to an activity you need to provide its ID.

Parameters

name	type	description	default	optional
kind	string	The type of reaction (eg. like, comment, …)	-
activity_id	string	The ID of the activity the reaction refers to	-
data	object	Additional data to attach to the reaction	-	✓
target_feeds	array	The feeds that should receive a notification activity	-	✓
target_feeds_extra_data	object	Additional data to attach to the notification activities	-	✓
user_id	string	Id of the user adding the reaction if not own user. Required for server side.	-	✓

// add a like reaction to the activity with id activityId
var like = await client.Reactions.AddAsync("like", activityId);

// adds a comment reaction to the activity with id activityId
var comment = await client.Reactions.AddAsync("comment", activityId, "bob");

// add a like reaction to the activity with id activityId
const like = await client.reactions.add("like", activityId, {});

// adds a comment reaction to the activity with id activityId
const comment = await client.reactions.add("comment", activityId, {
  text: "awesome post!",
});

// for server side auth, userId is required
const comment = await client.reactions.add(
  "comment",
  activityId,
  { text: "awesome post!" },
  { userId },
);

# add a like reaction to the activity with id activity_id
client.reactions.add("like", activity_id, user_id="mike")

# adds a comment reaction to the activity with id activityId
client.reactions.add(
  "comment", activity_id, user_id="mike", data={"text": "awesome post!"}
)

# add a like reaction to the activity with id activity_id
client.reactions.add("like", activity_id, user_id="mike")

# adds a comment reaction to the activity with id activity_id
client.reactions.add(
  "comment", activity_id, user_id="mike", data: {text: "awesome post!"}
)

// add a like reaction to the activity with id activity_id
$client->reactions()->add("like", $activity_id, "mike");

// adds a comment reaction to the activity with id activity_id
$client->reactions()->add("comment", $activity_id, "mike", ["text"=>"awesome post!"]);

Reaction like = new Reaction.Builder()
    .kind("like")
    .activityID(activity.getID())
    .build();

// add a like reaction to the activity with id activityId
like = client.reactions().add("john-doe", like).get();

Reaction comment = new Reaction.Builder()
    .kind("comment")
    .activityID(activity.getID())
    .extraField("text", "awesome post!")
    .build();

// adds a comment reaction to the activity with id activityId
comment = client.reactions().add("john-doe", comment).get();

// add a like reaction to the activity with id activityID
	r := stream.AddReactionRequestObject{
		Kind:    "like",
		ActivityID: activityID,
	}
	like, err := client.Reactions().Add(context.TODO(), r)
	if err != nil {
		panic(err)
	}

	// adds a comment reaction to the activity with id activityId
	r = stream.AddReactionRequestObject{
		Kind:    "comment",
		ActivityID: activityID,
		UserID:   "bob",
	}
	comment, err := client.Reactions().Add(context.TODO(), r)
	if err != nil {
		panic(err)
	}

// add a like reaction to the activity with id activityId
client.add(reactionTo: activityId, kindOf: "like") { result in /* ... */ }

// adds a comment reaction to the activity with id activityId
client.add(reactionTo: activityId, kindOf: "comment", extraData: Comment(text: "awesome post!")) { result in /* ... */ }

// add a like reaction to the activity with id activityId
await client.reactions.add('like', activity.id!);

// adds a comment reaction to the activity with id activityId
await client.reactions
 .add('comment', activity.id!, data: {'text': 'awesome post!'});

// for server side auth, userId is required
await client.reactions.add('comment', activity.id!,
 data: {'text': 'awesome post!'}, userId: 'userId');

Here’s a complete example:

// first let's read current user's timeline feed and pick one activity
var response = await client.Feed("timeline", "bob").GetActivitiesAsync();
var activity = response.FirstOrDefault();

// then let's add a like reaction to that activity
await client.Reactions.AddAsync("like", activity.Id, "bob");

// first let's read current user's timeline feed and pick one activity
const response = await client.feed("timeline", "mike").get();
const activity = response.activities[0];

// then let's add a like reaction to that activity
await client.reactions.add("like", activity.id);

# first let's read current user's timeline feed and pick one activity
response = client.feed("timeline", "mike").get()
activity = response["results"][0]

# then let's add a like reaction to that activity
client.reactions.add("like", activity["id"], user_id="bob")

# first let's read current user's timeline feed and pick one activity
response = client.feed("timeline", "mike").get()
activity = response["results"][0]

# then let's add a like reaction to that activity
client.reactions.add("like", activity["id"], "bob")

// first let's read current user's timeline feed and pick one activity
$activity = $client->feed('timeline', 'mike')->getActivities(0,1)["results"][0];

// then let's add a like reaction to that activity
$client->reactions()->add("like", $activity["id"], "bob");

// first let's read current user's timeline feed and pick one activity
List<activity> response = client.flatFeed("timeline", "mike").getActivities().get();
Activity activity = response.get(0);

// then let's add a like reaction to that activity
client.reactions().add("john-doe", Reaction.builder()
    .kind("like")
    .activityID(activity.getID())
    .build()).join();</activity>

// first let's read current user's timeline feed and pick one activity
	feed, err := client.FlatFeed("timeline", "bob")
	if err != nil {
		panic(err)
	}

	resp, err := feed.GetActivities(context.TODO())
	if err != nil {
		panic(err)
	}
	activity := resp.Results[0]

	// then let's add a like reaction to that activity
	r := stream.AddReactionRequestObject{
		Kind:    "like",
		ActivityID: activity.ID,
		UserID:   "bob",
	}
	_, err := client.Reactions().Add(context.TODO(), r)
	if err != nil {
		panic(err)
	}

// we recommend to add reaction kinds to the extention of the `ReactionKind` to avoid typos
extension ReactionKind {
  static let like = "like"
  static let comment = "comment"
}

// first let's read current user's timeline feed and pick one activity
client.flatFeed(feedSlug: "timeline", userId: "mike").get { result in
  if let response = try? result.get(), let activity = response.results.first, let activityId = activity.id {
    // then let's add a like reaction to that activity
    client.add(reactionTo: activityId, kindOf: .like) { result in
      print(result) // will print a reaction object in the result.
    }
  }
}

// first let's read current user's timeline feed and pick one activity
final activities =
 await client.flatFeed('user', '1').getActivities();

// then let's add a like reaction to that activity
await client.reactions
 .add('like', activities.first.id!);

The size of a reaction can not exceed 10kB

Retrieving Reactions

You can read reactions and filter them based on their user_id or activity_id values. Further filtering can be done with the kind parameter (e.g. retrieve all likes by one user, retrieve all comments for one activity, etc.).

Reactions are returned in descending order (newest to oldest) by default and when using id_lt[e], and in ascending order (oldest to newest) when using id_gt[e].

Parameters

name	type	description	default	optional
activity_id	string	Retrieve reactions by activity_id	-
user_id	string	Retrieve reactions by user_id	-
reaction_id	string	Retrieve children reaction by reaction_id	-	✓
kind	string	If provided it will only retrieve reactions of a certain kind (e.g. “like”)	-	✓
limit	integer	The number of reactions to retrieve (Max. 25)	10	✓
id_gte	string	Retrieve reactions created after the one with ID equal to the parameter (inclusive)	-	✓
id_gt	string	Retrieve reactions created after the one with ID equal to the parameter.	-	✓
id_lte	string	Retrieve reactions created before the one with ID equal to the parameter (inclusive)	-	✓
id_lt	string	Retrieve reactions before the one with ID equal to the parameter	-	✓
with_activity_data	boolean	Returns activity data when paginating using activity_id	-	✓
with_own_children	boolean	Enable returning the children reactions when filtering reactions by parent ID	-	✓

// retrieve all kind of reactions for an activity
var reactions = await client.Reactions.FilterAsync(ReactionFiltering.Default, ReactionPagination.By.ActivityID("ed2837a6-0a3b-4679-adc1-778a1704852d"));

// retrieve first 10 likes for an activity
var response = await client.Reactions.FilterAsync(ReactionFiltering.Default.WithLimit(10), ReactionPagination.By.ActivityID("ed2837a6-0a3b-4679-adc1-778a1704852d").Kind("like"));

// retrieve the next 10 likes using the id_lt param
var filter = ReactionFiltering.Default.WithFilter(FeedFilter.Where().IdLessThan("e561de8f-00f1-11e4-b400-0cc47a024be0"));
var pagination = ReactionPagination.By.ActivityID("ed2837a6-0a3b-4679-adc1-778a1704852d").Kind("like");
var response2 = await client.Reactions.FilterAsync(filter, pagination);

// retrieve all kind of reactions for an activity
const reactions = await client.reactions.filter({
  activity_id: "ed2837a6-0a3b-4679-adc1-778a1704852d",
});

// retrieve first 10 likes for an activity
const response = await client.reactions.filter({
  activity_id: "ed2837a6-0a3b-4679-adc1-778a1704852d",
  kind: "like",
  limit: 10,
});

// retrieve the next 10 likes using the id_lt param
const response = await client.reactions.filter({
  activity_id: "ed2837a6-0a3b-4679-adc1-778a1704852d",
  kind: "like",
  id_lt: "e561de8f-00f1-11e4-b400-0cc47a024be0",
});

# retrieve all kind of reactions for an activity
reactions = client.reactions.filter(
  activity_id="ed2837a6-0a3b-4679-adc1-778a1704852d"
)

# retrieve first 10 likes for an activity
response = client.reactions.filter(
  activity_id="ed2837a6-0a3b-4679-adc1-778a1704852d", kind="like", limit=10
)

# retrieve the next 10 likes using the id_lt param
response = client.reactions.filter(
  activity_id="ed2837a6-0a3b-4679-adc1-778a1704852d",
  kind="like",
  id_lt="e561de8f-00f1-11e4-b400-0cc47a024be0",
)

# retrieve all kind of reactions for an activity
reactions = client.reactions.filter(
  activity_id: "ed2837a6-0a3b-4679-adc1-778a1704852d"
)

# retrieve first 10 likes for an activity
response = client.reactions.filter(
  activity_id: "ed2837a6-0a3b-4679-adc1-778a1704852d", kind: "like", limit: 10
)

# retrieve the next 10 likes using the id_lt param
response = client.reactions.filter(
  activity_id: "ed2837a6-0a3b-4679-adc1-778a1704852d",
  kind: "like",
  id_lt: "e561de8f-00f1-11e4-b400-0cc47a024be0",
)

// retrieve all kind of reactions for an activity
$client->reactions()->filter("activity_id", "827509c1-2872-11e9-8ec6-0a544dd61b80", "comment");

// retrieve first 10 likes for an activity
$client->reactions()->filter(
  "activity_id",
  "827509c1-2872-11e9-8ec6-0a544dd61b80",
  "like",
  ["limit" => 10],
);

// retrieve the next 10 likes using the id_lt param
$client->reactions()->filter(
  "activity_id",
  "827509c1-2872-11e9-8ec6-0a544dd61b80",
  "like",
  ["limit" => 10
   "id_lt" => "e561de8f-00f1-11e4-b400-0cc47a024be0"],
);

// retrieve all kind of reactions for an activity
List<reaction> reactions = client.reactions().filter(LookupKind.ACTIVITY, "ed2837a6-0a3b-4679-adc1-778a1704852d").get();

// retrieve first 10 likes for an activity
reactions = client.reactions()
    .filter(LookupKind.ACTIVITY,
        "ed2837a6-0a3b-4679-adc1-778a1704852d",
        new Filter().limit(10),
        "like").join();

// retrieve the next 10 likes using the id_lt param
reactions = client.reactions()
    .filter(LookupKind.ACTIVITY,
        "ed2837a6-0a3b-4679-adc1-778a1704852d",
        new Filter().idLessThan("e561de8f-00f1-11e4-b400-0cc47a024be0"),
        "like").join();</reaction>

// retrieve all kind of reactions for an activity
	resp, err := client.Reactions().Filter(context.TODO(), stream.ByActivityID("ed2837a6-0a3b-4679-adc1-778a1704852d"))
	if err != nil {
		panic(err)
	}

	// retrieve first 10 likes for an activity
	resp, err := client.Reactions().Filter(
		context.TODO(),
		stream.ByActivityID("ed2837a6-0a3b-4679-adc1-778a1704852d").ByKind("like"),
		stream.WithLimit(10),
	)
	if err != nil {
		panic(err)
	}

	// retrieve the next 10 likes using the id_lt param
	filterAttribute := stream.ByActivityID("ed2837a6-0a3b-4679-adc1-778a1704852d").ByKind("like")
	pagination := stream.WithIDLT("e561de8f-00f1-11e4-b400-0cc47a024be0")
	resp, err := client.Reactions().Filter(context.TODO(), filterAttribute, pagination)
	if err != nil {
		panic(err)
	}

// retrieve all kind of reactions for an activity
client.reactions(forActivityId: "ed2837a6-0a3b-4679-adc1-778a1704852d") { result in /* ... */ }

// retrieve first 10 likes for an activity
client.reactions(forActivityId: "ed2837a6-0a3b-4679-adc1-778a1704852d",
         kindOf: "like",
         pagination: .limit(10)) { result in /* ... */ }

// retrieve the next 10 likes using the id_lt param
client.reactions(forActivityId: "ed2837a6-0a3b-4679-adc1-778a1704852d",
         kindOf: "like",
         pagination: .lessThan("e561de8f-00f1-11e4-b400-0cc47a024be0")) { result in /* ... */ }

// retrieve all kind of reactions for an activity
await clientWithSecret.reactions.filter(
 LookupAttribute.activityId, '5de5e4ba-add2-11eb-8529-0242ac130003');

// retrieve first 10 likes for an activity
await clientWithSecret.reactions.filter(
 LookupAttribute.activityId, '5de5e4ba-add2-11eb-8529-0242ac130003',
 kind: 'like', limit: 10);

// retrieve the next 10 likes using the id_lt param
await clientWithSecret.reactions.filter(
 LookupAttribute.activityId,
 '5de5e4ba-add2-11eb-8529-0242ac130003',
 kind: 'like',
 filter: Filter().idLessThan('e561de8f-00f1-11e4-b400-0cc47a024be0'),
);

Retrieving Reactions by ID

await client.reactions.get(reactionId);

client.reactions.get(reaction_id)

resp, err := client.Reactions().Get(context.TODO(), id)
if err != nil {
  panic(err)
}

Updating Reactions

Reactions can be updated by providing reaction ID parameter. Changes to reactions are propagated to all notified feeds; if the target_feeds list is updated, notifications will be added and removed accordingly.

Parameters

name	type	description	default	optional
reaction_id	string	The ID of the reaction	-
data	object	Reaction data	-	✓
target_feeds	string	The list of feeds that should receive a copy of the reaction.	-	✓

var reactionData = new Dictionary<string, object="">()
{
  { "text", "love it!"}
};
await client.Reactions.UpdateAsync(reactionId, reactionData);

client.reactions.update(reactionId, { text: "love it!" });

client.reactions.update(reaction_id, {"text": "love it!"});

client.reactions.update(reaction_id, data: {text: "I love it"})

$client->reactions()->update($reaction_id, ["text"=> "I love it"]);

client.reactions().update(Reaction.builder()
    .id(reaction.getId())
    .extraField("text", "love it!")
    .build());

resp, err := client.Reactions().Update(context.TODO(), reactionID, map[string]any{"text": "love it!"}, nil)
	if err != nil {
		panic(err)
	}

client.update(reactionId: reactionId, extraData: Comment(text: "love it!")) { result in /* ... */ }

await client.reactions
 .update(reactionId, data: {'text': 'love it!'});

Removing Reactions

Reactions are easy to remove. Simply pass in their ID, like so:

await client.Reactions.DeleteAsync(reactionId)

client.reactions.delete(reactionId);

client.reactions.delete(reaction_id)

client.reactions.delete(reaction_id)

client.reactions().delete(reaction.getId()).join();

_, err := client.Reactions().Delete(context.TODO(), reactionID)
	if err != nil {
		panic(err)
	}

client.delete(reactionId: reactionId) { result in /* ... */ }

await client.reactions.delete(reactionId);

Soft delete and restore

This feature is currently supported only selected SDKs. If you need support for other SDKs, please contact support.

Reactions can be soft deleted and restored by ID:

await client.Reactions.DeleteAsync(reactionId, soft: true);
await client.Reactions.RestoreSoftDeletedAsync(reactionId);

client.reactions.delete(reaction_id, soft=True)
client.reactions.restore(reaction_id)

client.reactions().softDelete(reaction.getId()).join();
client.reactions().restore(reaction.getId()).join();

client.reactions.delete(reactionId, true);
client.reactions.restore(reactionId);

Discard Rules

Reactions and Feeds