Add custom event

Custom events can be used to add metadata to your conversation. There are some restrictions when using custom events:

  • Event type must begin with custom:
  • Event type must not exceed 100 characters
  • Event type must contain ONLY alphanumeric, - and _ characters
  • Event body must not exceed 4096 bytes


Ensure the following variables are set to your required values using any convenient method:

Key Description
CONVERSATION_ID The unique ID of the Conversation.
MEMBER_ID The unique ID of the Member (optional).


Use your existing application

You will need to use an existing Application that contains a Conversation in order to be able to add a custom event. See the Create Conversation code snippet for information on how to create an Application and some sample Conversations.

Write the code

Add the following to

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# `from` is only required if you're using a JWT with a `sub` claim
curl -X "POST" "$CONVERSATION_ID/events" \
     -H 'Authorization: Bearer '$JWT\
     -H 'Content-Type: application/json' \
     -d $'{
  "type": "custom:YOUR_EVENT_NAME",
  "from": "'$MEMBER_ID'",
  "body": {
    "your": "data"

View full source

Run your code

Save this file to your machine and run it:


Try it out

When you run the code you'll see a custom event in your event list