> ## Documentation Index > Fetch the complete documentation index at: https://docs.devmob.app.br/llms.txt > Use this file to discover all available pages before exploring further. # Sign Upload > Returns presigned POST payload + final CDN URL. ## OpenAPI ````yaml /api-reference/ops/openapi.json post /api/v1/ops/storage/uploads openapi: 3.0.0 info: title: DEVMOB OPS API description: DEVMOB API version: '1.0' contact: {} servers: [] security: [] tags: - name: Auth description: Authentication and token lifecycle - name: Bank Account description: Bank accounts - name: Benefit description: Benefit categories and usage history - name: Benefit Program description: Fare benefit programs - name: Benefit Request description: Fare benefit requests and documents - name: Credit Grant description: Company granted credits - name: Driver description: Company drivers - name: Employee description: Company employees - name: Employee Session description: Employee sessions - name: Export description: Export resources - name: Export Job description: Immediate export jobs - name: Export Schedule description: Scheduled exports - name: Invite description: Member invitations - name: Notification description: OPS inbox notifications - name: Offering description: Trip offerings and seat maps - name: Order description: Orders - name: Organization description: Organization profile - name: Organization Address description: Organization address - name: OTP description: One-time password flows - name: Payment description: Payments - name: Permission description: Permissions - name: Point description: Point lookup - name: Profile description: Authenticated OPS profile - name: Promotion description: Promotions - name: Promotion Rule description: Promotion rules - name: Receivable description: Receivables - name: Report description: Operational reports - name: Role description: Roles - name: Route description: Routes - name: Route Approval description: Route approvals - name: Routing description: Routing helpers - name: Storage description: Storage uploads - name: Support description: Support cases - name: Transfer description: Transfers - name: Trip description: Trips - name: Trip Event description: Trip operational events - name: Trip Schedule description: Recurring trip schedules - name: Trip Tracking description: Trip GPS tracking - name: Vehicle description: Vehicles and seats paths: /api/v1/ops/storage/uploads: post: tags: - Storage summary: Sign Upload description: Returns presigned POST payload + final CDN URL. operationId: signUpload parameters: - name: fields required: false in: query description: >- Comma-separated list of fields to include in the response. Supports dot notation for nested projection (e.g. `id,name,user.email,trips.route.id`). Unknown fields are silently dropped. schema: type: string requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/SignUploadRequest' responses: '200': content: application/json: schema: $ref: '#/components/schemas/SignUpload' description: OK '400': content: application/json: example: errors: - message: required path: name message: Bad Request Error statusCode: 400 schema: properties: message: type: string statusCode: enum: - 400 type: number errors: items: properties: message: type: string path: type: string required: - message - path type: object type: array required: - message - statusCode type: object description: Bad Request Error '401': content: application/json: example: message: Missing or invalid access token statusCode: 401 schema: properties: message: type: string statusCode: enum: - 401 type: number required: - message - statusCode type: object description: Unauthorized '403': content: application/json: example: message: Insufficient permissions statusCode: 403 schema: properties: message: type: string statusCode: enum: - 403 type: number required: - message - statusCode type: object description: Forbidden '500': content: application/json: example: message: Internal Server Error statusCode: 500 schema: properties: message: type: string statusCode: enum: - 500 type: number required: - message - statusCode type: object description: Internal Server Error security: - bearer: [] components: schemas: SignUploadRequest: type: object properties: context: type: string enum: - USER_AVATAR - ORGANIZATION_LOGO description: Upload context example: USER_AVATAR fileName: type: string description: Original file name example: avatar.png contentType: type: string enum: - image/png - image/jpeg - image/webp description: Allowed MIME type example: image/png required: - context - fileName - contentType description: Sign upload payload SignUpload: type: object properties: key: type: string description: Object key example: >- temp/users/0195e7a1-8b5c-7d3e-9f4a-2c6b8d0e1f3a/user-avatar/0195e7b2-4a3c-7d3e-9f4a-2c6b8d0e1f3b.png cdnUrl: type: string format: uri description: Public CDN URL example: >- https://dev.static.devmob.app.br/user/0195e7a1-8b5c-7d3e-9f4a-2c6b8d0e1f3a/avatar/0195e7b2-4a3c-7d3e-9f4a-2c6b8d0e1f3b.png upload: type: object properties: url: type: string format: uri description: Form action URL example: https://dev.static.devmob.app.br/ fields: type: object additionalProperties: type: string description: Form fields to include in multipart POST required: - url - fields description: Presigned POST upload payload expiresIn: type: integer exclusiveMinimum: true description: Presign TTL in seconds example: 900 minimum: 0 required: - key - cdnUrl - upload - expiresIn description: Sign upload result securitySchemes: bearer: scheme: bearer bearerFormat: JWT type: http ````