> ## Documentation Index > Fetch the complete documentation index at: https://docs.rootly.com/llms.txt > Use this file to discover all available pages before exploring further. # Shows a communications group > Shows details of a communications group ## OpenAPI ````yaml https://rootly-heroku.s3.amazonaws.com/swagger/v1/swagger.json get /v1/communications/groups/{id} openapi: 3.0.1 info: title: Rootly API v1 version: v1 description: >+ # How to generate an API Key? - **Organization dropdown** > **Organization Settings** > **API Keys** # JSON:API Specification Rootly is using **JSON:API** (https://jsonapi.org) specification: - JSON:API is a specification for how a client should request that resources be fetched or modified, and how a server should respond to those requests. - JSON:API is designed to minimize both the number of requests and the amount of data transmitted between clients and servers. This efficiency is achieved without compromising readability, flexibility, or discoverability. - JSON:API requires use of the JSON:API media type (**application/vnd.api+json**) for exchanging data. # Authentication and Requests We use standard HTTP Authentication over HTTPS to authorize your requests. ``` curl --request GET \ --header 'Content-Type: application/vnd.api+json' \ --header 'Authorization: Bearer YOUR-TOKEN' \ --url https://api.rootly.com/v1/incidents ```
# Rate limiting - There is a default limit of **5** **GET**, **HEAD**, and **OPTIONS** calls **per API key** every **60 seconds** (0 hours). The limit is calculated over a **0-hour sliding window** looking back from the current time. While the limit can be configured to support higher thresholds, you must first contact your **Rootly Customer Success Manager** to make any adjustments. - There is a default limit of **3** **POST**, **PUT**, **PATCH** or **DELETE** calls **per API key** every **60 seconds** (0 hours). The limit is calculated over a **0-hour sliding window** looking back from the current time. While the limit can be configured to support higher thresholds, you must first contact your **Rootly Customer Success Manager** to make any adjustments. - When rate limits are exceeded, the API will return a **429 Too Many Requests** HTTP status code with the response: `{"error": "Rate limit exceeded. Try again later."}` - **X-RateLimit headers** are included in every API response, providing real-time rate limit information: - **X-RateLimit-Limit** - The maximum number of requests permitted and the time window (e.g., "1000, 1000;window=3600" for 1000 requests per hour) - **X-RateLimit-Remaining** - The number of requests remaining in the current rate limit window - **X-RateLimit-Used** - The number of requests already made in the current window - **X-RateLimit-Reset** - The time at which the current rate limit window resets, in UTC epoch seconds # Pagination - Pagination is supported for all endpoints that return a collection of items. - Pagination is controlled by the **page** query parameter ## Example ``` curl --request GET \ --header 'Content-Type: application/vnd.api+json' \ --header 'Authorization: Bearer YOUR-TOKEN' \ --url https://api.rootly.com/v1/incidents?page[number]=1&page[size]=10 ``` x-logo: url: https://rootly-heroku.s3.us-east-1.amazonaws.com/swagger/v1/logo.png servers: - url: https://api.rootly.com security: [] paths: /v1/communications/groups/{id}: parameters: - name: id in: path description: Communications Group ID required: true schema: type: string get: tags: - Communications Groups summary: Shows a communications group description: Shows details of a communications group operationId: getCommunicationsGroup responses: '200': description: communications group found content: application/vnd.api+json: schema: $ref: '#/components/schemas/communications_group_response' '404': description: communications group not found content: application/vnd.api+json: schema: $ref: '#/components/schemas/errors_list' security: - bearer_auth: [] components: schemas: communications_group_response: type: object properties: data: type: object properties: id: type: string description: Unique ID of the communications group type: type: string enum: - communications_groups attributes: type: object allOf: - $ref: '#/components/schemas/communications_group' required: - id - type - attributes required: - data errors_list: type: object properties: errors: type: array items: type: object properties: title: type: string status: type: string code: type: string nullable: true detail: type: string nullable: true required: - title - status communications_group: type: object properties: name: type: string description: The name of the communications group slug: type: string description: The slug of the communications group description: type: string description: The description of the communications group nullable: true communication_type_id: type: string description: The communication type ID is_private: type: boolean description: Whether the group is private condition_type: type: string description: Condition type enum: - any - all sms_channel: type: boolean description: SMS channel enabled email_channel: type: boolean description: Email channel enabled created_at: type: string description: Date of creation updated_at: type: string description: Date of last update communication_group_conditions: type: array description: Group conditions attributes nullable: true items: type: object properties: property_type: type: string description: Property type enum: - service - severity - functionality - group - incident_type service_ids: type: array description: Array of service IDs nullable: true items: type: string severity_ids: type: array description: Array of severity IDs nullable: true items: type: string functionality_ids: type: array description: Array of functionality IDs nullable: true items: type: string group_ids: type: array description: Array of group IDs nullable: true items: type: string incident_type_ids: type: array description: Array of incident type IDs nullable: true items: type: string member_ids: type: array description: Array of member user IDs nullable: true items: type: integer slack_channel_ids: type: array description: Array of Slack channel IDs nullable: true items: type: string communication_external_group_members: type: array description: External group members nullable: true items: type: object properties: id: type: string description: ID of the external group member name: type: string description: Name of the external member email: type: string description: Email of the external member phone_number: type: string description: Phone number of the external member required: - name - communication_type_id - is_private - condition_type - sms_channel - email_channel - created_at - updated_at securitySchemes: bearer_auth: type: http scheme: bearer ````