> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usethunder.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Ingest Messages

> Ingest conversation messages into Thunder. Creates or updates instances, sessions, and end users as needed.



## OpenAPI

````yaml POST /v1/ingest/
openapi: 3.0.3
info:
  title: Thunder API
  description: API for ingesting conversation data and querying analytics
  version: 1.0.0
servers:
  - url: https://api.usethunder.com
    description: Production
  - url: http://localhost:3001
    description: Local development
security:
  - apiKey: []
tags:
  - name: Ingest
    description: Ingest conversation messages
  - name: Query
    description: Query topic and cluster metrics
paths:
  /v1/ingest/:
    post:
      tags:
        - Ingest
      summary: Ingest messages
      description: >-
        Ingest conversation messages into Thunder. Creates or updates instances,
        sessions, and end users as needed.
      operationId: ingestMessages
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                projectId:
                  type: string
                  format: uuid
                  pattern: >-
                    ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
                instanceId:
                  type: string
                  format: uuid
                  pattern: >-
                    ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
                sessionId:
                  type: string
                  format: uuid
                  pattern: >-
                    ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
                metadata:
                  type: object
                  properties:
                    instance:
                      type: object
                      additionalProperties: {}
                    session:
                      type: object
                      additionalProperties: {}
                    users:
                      type: object
                      additionalProperties:
                        type: object
                        additionalProperties: {}
                messages:
                  minItems: 1
                  maxItems: 10000
                  type: array
                  items:
                    type: object
                    properties:
                      role:
                        type: string
                        enum:
                          - user
                          - assistant
                          - system
                      content:
                        type: string
                        minLength: 1
                      userId:
                        type: string
                        minLength: 1
                      metadata:
                        type: object
                        additionalProperties: {}
                    required:
                      - role
                      - content
                      - userId
              required:
                - messages
        required: true
      responses:
        '200':
          description: Default Response
          content:
            application/json:
              schema:
                type: object
                properties:
                  instanceId:
                    type: string
                    format: uuid
                    pattern: >-
                      ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
                  sessionId:
                    type: string
                    format: uuid
                    pattern: >-
                      ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
                required:
                  - instanceId
                  - sessionId
                additionalProperties: false
        '400':
          description: Default Response
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    enum:
                      - false
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                      - code
                      - message
                    additionalProperties: false
                required:
                  - success
                  - error
                additionalProperties: false
        '401':
          description: Default Response
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    enum:
                      - false
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                      - code
                      - message
                    additionalProperties: false
                required:
                  - success
                  - error
                additionalProperties: false
        '404':
          description: Default Response
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    enum:
                      - false
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                      - code
                      - message
                    additionalProperties: false
                required:
                  - success
                  - error
                additionalProperties: false
        '500':
          description: Default Response
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    enum:
                      - false
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                      - code
                      - message
                    additionalProperties: false
                required:
                  - success
                  - error
                additionalProperties: false
components:
  securitySchemes:
    apiKey:
      type: apiKey
      name: x-api-key
      in: header
      description: Your Thunder API key

````