# Add a Teams channel

`POST https://evohub.io/api/v1/chat/channels`

Part of the [On-Call API](https://docs-dev.evohub.io/oncall.md) reference · operationId `createChatChannel`.

Adds a Microsoft Teams channel by its Workflows webhook URL (https, on
`powerplatform.com` or `logic.azure.com`). With `all_alerts`, every alert is
posted to it; otherwise only escalation steps that name it post there.

**Permission (API-key scope):** `oncall:settings:write`.

## Authorization

Any one of:

- `bearerAuth` (oncall:settings:write)
- `apiKeyHeader` (oncall:settings:write)

Where:

- `bearerAuth`: HTTP Bearer — An EvoHub API key (`evohub_…`) as a bearer token.
- `apiKeyHeader`: API key in the header `X-API-Key` — An EvoHub API key (`evohub_…`).

## Request body (required)

Content type: `application/json`

Type: `ChatChannelCreate`

- `kind` (string, required, value `teams`)
- `name` (string, required, max length 200)
- `webhook_url` (string (uri), required): A Teams Workflows webhook URL.
- `all_alerts` (boolean)

## Responses

### 201 — The channel.

Content type: `application/json`

Type: `object`

- `data` (ChatChannel, required)
  - `id` (string)
  - `org_id` (string)
  - `kind` (string, value `teams`)
  - `name` (string)
  - `all_alerts` (boolean): Every alert is posted here.
  - `created_by` (string)
  - `created_at` (string (date-time))
  - `updated_at` (string (date-time))
- `success` (boolean, required, value `true`)

### 400 — The body is not JSON (`INVALID_REQUEST`); or `kind` is not `teams`, `name` is empty or over 200 characters, or the webhook URL is not a Teams Workflows URL (`VALIDATION_FAILED`).

Content type: `application/json`

Type: `ValidationError`

- `error` (object, required)
  - `code` (string, required, value `VALIDATION_FAILED`)
  - `message` (string, required)
  - `details` (array of object, required)
    - `field` (string)
    - `message` (string)

### 401 — No API key was sent, or it is unknown, revoked or expired (`UNAUTHORIZED`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required): Machine-readable code. Branch on this.
  - `message` (string, required): Human-readable explanation.

### 403 — The key lacks the scope this endpoint needs (`FORBIDDEN`).

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required): Machine-readable code. Branch on this.
  - `message` (string, required): Human-readable explanation.

### 429 — Too many requests (`RATE_LIMITED`). Wait `Retry-After` seconds.

Headers:

- `Retry-After` (integer): Seconds to wait.

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required): Machine-readable code. Branch on this.
  - `message` (string, required): Human-readable explanation.

### 500 — Something went wrong on EvoHub's side (`INTERNAL_ERROR`). Retry later.

Content type: `application/json`

Type: `Error`

- `error` (object, required)
  - `code` (string, required): Machine-readable code. Branch on this.
  - `message` (string, required): Human-readable explanation.

## Example request

```bash
curl -X POST 'https://evohub.io/api/v1/chat/channels' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <TOKEN>' \
  -d '{
  "kind": "teams",
  "name": "Ops alerts",
  "all_alerts": true,
  "webhook_url": "https://prod-00.westeurope.logic.azure.com/workflows/0123456789abcdef/triggers/manual/paths/invoke"
}'
```