---
title: "POST /v2/participants/discussion"
method: POST
path: "/v2/participants/discussion"
tags: ["participants"]
---

# POST /v2/participants/discussion

`POST /v2/participants/discussion`

Returns discussion related to a list of participants

## Request body

- Participant[]
  - `address` string, required
  - `contact_ids` string[]
  - `label` string
  - `protocol` string, required
  - `type` 'To' | 'Cc' | 'Bcc' | 'From' | 'Reply-To' | 'Sender', required

## Response `200`

Computed discussion information

- object
  - `hash` string — participants informations hash for discussion lookup
  - `discussion_id` string — id of existing discussion for given participants

## Other responses

- `400` — malform request
- `401` — Unauthorized access

## Changes

- **2019-04-17** `db8743fd356d` — 1 info
  - endpoint added
- **2018-04-25** `55efa6cbf8cf` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/caliopen/apis/caliopen-http-rest-api/changes/v2/participants/discussion/post.md)

---

[API](https://skmtc.dev/caliopen/apis/caliopen-http-rest-api.md) · [All operations](https://skmtc.dev/caliopen/apis/caliopen-http-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/caliopen/caliopen-http-rest-api/revisions/f32b5d08284d/schema)