> ## Documentation Index > Fetch the complete documentation index at: https://docs.internal.nscale.com/llms.txt > Use this file to discover all available pages before exploring further. # Upsert device inventory projection (internal) > Internal upsert and replay endpoint for inventory device projections. ## OpenAPI ````yaml /openapi/fleet-manager-openapi.yaml post /api/v1/inventory/device-projections/ openapi: 3.0.3 info: title: Fleet Manager API version: 1.0.0 description: API for the Nscale Fleet Manager servers: [] security: [] paths: /api/v1/inventory/device-projections/: post: tags: - Inventory summary: Upsert device inventory projection (internal) description: Internal upsert and replay endpoint for inventory device projections. operationId: api_v1_inventory_device_projections_create requestBody: content: application/json: schema: $ref: '#/components/schemas/InventoryProjectionUpsert' application/x-www-form-urlencoded: schema: $ref: '#/components/schemas/InventoryProjectionUpsert' multipart/form-data: schema: $ref: '#/components/schemas/InventoryProjectionUpsert' required: true responses: '200': content: application/json: schema: $ref: '#/components/schemas/InventoryProjectionUpsertResponse' description: '' '400': description: Validation error. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Authentication credentials were not provided or are invalid. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: You do not have permission to perform this action. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '409': description: The NetBox device matches more than one device. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: The device kind is not supported. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - oauth2: - inventory:write - cookieAuth: [] components: schemas: InventoryProjectionUpsert: type: object description: >- Write contract for the inventory projection upsert endpoint. ``netbox_id`` is the lookup key the server resolves to a Fleet Manager device. ``custom_fields`` carries raw NetBox custom-field values (the read API stringifies them); the write contract preserves them as-is. properties: netbox_id: type: integer minimum: 1 bmc_ip: type: string nullable: true asset_tag: type: string default: '' description: type: string default: '' custom_fields: type: object additionalProperties: $ref: '#/components/schemas/JsonValue' site_netbox_id: type: integer minimum: 1 nullable: true primary_ip: type: string nullable: true device_type_part_number: type: string nullable: true device_type_u_height: type: number format: double nullable: true site_description: type: string nullable: true site_region: type: string nullable: true site_syslog_server: type: string nullable: true fru: type: array items: $ref: '#/components/schemas/FruComponent' interfaces: type: array items: $ref: '#/components/schemas/Interface' nullable: true source_updated_at: type: string format: date-time required: - netbox_id - source_updated_at InventoryProjectionUpsertResponse: type: object description: Response contract for a projection upsert. properties: device_id: type: string format: uuid changed: type: boolean content_hash: type: string last_synced_at: type: string format: date-time device_updated_at: type: string format: date-time required: - changed - content_hash - device_id - device_updated_at - last_synced_at ErrorResponse: type: object description: >- Uniform error body for every 4xx/5xx response. `detail` is a human-readable message, always present, safe to display to end users. `code` is the machine-readable identifier. `field_errors` lists per-input-field validation messages and is empty for non-field errors (auth, permission, not-found, conflict, server). required: - detail - code - field_errors properties: detail: type: string code: $ref: '#/components/schemas/ErrorCodeEnum' field_errors: type: array items: $ref: '#/components/schemas/FieldError' JsonValue: description: Any JSON value. nullable: true anyOf: - type: string - type: number - type: integer - type: boolean - type: array items: $ref: '#/components/schemas/JsonValue' - type: object additionalProperties: $ref: '#/components/schemas/JsonValue' FruComponent: type: object description: >- One field-replaceable-unit component sourced from a NetBox module. ``serial_number`` is the FRU identity (always present — the ingest categorizer drops modules with no serial). ``part_number`` feeds Borneo memory FRU and ``model_number`` feeds Borneo disk FRU; both are null for categories that do not carry them. properties: category: $ref: '#/components/schemas/FruComponentCategoryEnum' serial_number: type: string part_number: type: string nullable: true model_number: type: string nullable: true required: - category - serial_number Interface: type: object description: Serializer for Interface model. properties: ip_addresses: type: array items: type: string name: type: string maxLength: 50 type: type: string maxLength: 50 type_display: type: string maxLength: 50 mac_address: type: string nullable: true maxLength: 17 ib_device_guid: type: string nullable: true maxLength: 16 required: - name - type - type_display ErrorCodeEnum: type: string description: >- Stable machine-readable error identifier. New members may be added within this API version; clients must tolerate unknown values. enum: - error - invalid - parse_error - authentication_failed - not_authenticated - permission_denied - not_found - method_not_allowed - not_acceptable - unsupported_media_type - conflict - enrollment_infrastructure_reference_pending - enrollment_infrastructure_reference_changed - unprocessable_entity - throttled - service_unavailable FieldError: type: object description: One input field's validation messages. required: - field - messages properties: field: type: string description: >- Dotted path to the offending input field, or to the collection row when the whole row is invalid (e.g. `filters.end_date`, `memberships.0.role`, `memberships.0`). messages: type: array minItems: 1 items: type: string FruComponentCategoryEnum: enum: - cpu - gpu - disk - nic - memory type: string description: |- * `cpu` - cpu * `gpu` - gpu * `disk` - disk * `nic` - nic * `memory` - memory securitySchemes: oauth2: type: oauth2 flows: {} cookieAuth: type: apiKey in: cookie name: sessionid ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.