Groups
Add contacts to a group
Add one or more contacts to a group by providing an array of contact IDs. Contacts that are already members are silently skipped server-side. **Requires `Idempotency-Key`.** Returns `{ data: { affecte
POST /v2/groups/{groupId}/contacts
Parameters
Path parameters
groupId
string (uuid) required
Header parameters
Idempotency-Key
string required
Required. UUID per logical operation, reused on every retry. See
apps/rest-api/src/shared/idempotency.ts for the full contract. Missing → 400 BadRequest; same key + different body → 409 Conflict.Request body
Content-Type: application/json
contactIds
array<string (uuid)> required
allowPartial
boolean
Example
{
"contactIds": [
"00000000-0000-0000-0000-000000000000"
]
}
Responses
200 — Successful response
Content-Type: application/json
data
object required
data.affected
integer required
data.ids
array<string>
data.failed
array<object>
data.failed[].id
string
data.failed[].error
object
data.failed[].error.code
string
data.failed[].error.message
string
data.remaining
array<string>
Example
{
"data": {
"affected": 0
}
}
400 — Request body failed validation.
Content-Type: application/json
(body)
any
401 — Missing or invalid API key.
Content-Type: application/json
(body)
any
403 — Valid key, insufficient permission.
Content-Type: application/json
(body)
any
404 — Resource does not exist.
Content-Type: application/json
(body)
any
409 — Request conflicts with the current state of the resource.
Content-Type: application/json
(body)
any
429 — Rate limit exceeded.
Content-Type: application/json
(body)
any
500 — Unexpected server error.
Content-Type: application/json
(body)
any
Code samples
curl https://api.prod.getdex.com/v2/groups/00000000-0000-0000-0000-000000000000/contacts \
--request POST \
--header 'Authorization: Bearer YOUR_API_KEY' \
--header 'Content-Type: application/json' \
--data '{
"contactIds": [
"00000000-0000-0000-0000-000000000000"
]
}'
fetch('https://api.prod.getdex.com/v2/groups/00000000-0000-0000-0000-000000000000/contacts', {
method: 'POST',
headers: {
Authorization: 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
contactIds: ['00000000-0000-0000-0000-000000000000']
})
})
requests.post(
"https://api.prod.getdex.com/v2/groups/00000000-0000-0000-0000-000000000000/contacts",
headers={
"Authorization": "Bearer YOUR_API_KEY",
"Content-Type": "application/json"
},
json={
"contactIds": [
"00000000-0000-0000-0000-000000000000"
]
}
)
List contacts in a group
Retrieve contacts in a group. Email and phone relations are omitted by default; request them with `?include[contact_emails]=true` or `?include[contact_phone_numbers]=true`.
Create a note
Create a note (a `timeline_items` row) optionally linked to contacts. Returns the created note in the canonical single-entity envelope.

