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

# Submit an operator fixed-width layout template

> Validates and stores a per-tenant fixed-width layout template (region/family/variant-namespaced). The layout is run through the well-formedness gate BEFORE storage: overrun, overlap, missing-required, zero-field, or a mis-marked money column (money MUST be kind=decimal) rejects with 422 and the template is never stored. An approved template is resolved by the parse path as an additive layout source. Tenant from the JWT; never the body.



## OpenAPI

````yaml en/openapi/v3-current/matcher.yaml post /v1/imports/formats/templates
openapi: 3.1.0
info:
  title: Matcher APIs
  description: >-
    Complete API reference for the Matcher reconciliation engine, providing
    automated transaction matching between Midaz Ledger and external systems.
  version: 4.1.0
  license:
    name: Elastic License 2.0
    url: https://www.elastic.co/licensing/elastic-license
servers:
  - url: https://matcher.sandbox.lerian.net
security: []
paths:
  /v1/imports/formats/templates:
    post:
      tags:
        - Ingestion
      summary: Submit an operator fixed-width layout template
      description: >-
        Validates and stores a per-tenant fixed-width layout template
        (region/family/variant-namespaced). The layout is run through the
        well-formedness gate BEFORE storage: overrun, overlap, missing-required,
        zero-field, or a mis-marked money column (money MUST be kind=decimal)
        rejects with 422 and the template is never stored. An approved template
        is resolved by the parse path as an additive layout source. Tenant from
        the JWT; never the body.
      operationId: submitLayoutTemplate
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateLayoutTemplateRequest'
        required: true
      responses:
        '201':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LayoutTemplateResponse'
          description: Created
        default:
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/Detail'
          description: Error
      security:
        - BearerAuth: []
components:
  schemas:
    CreateLayoutTemplateRequest:
      additionalProperties: false
      properties:
        discriminatorLength:
          description: Discriminator width in bytes
          examples:
            - 1
          format: int64
          minimum: 1
          type: integer
        discriminatorStart:
          description: Zero-based byte offset of the record-type discriminator
          examples:
            - 0
          format: int64
          minimum: 0
          type: integer
        family:
          description: Format family the template namespaces under
          examples:
            - cnab400
          minLength: 1
          type: string
        records:
          description: Record types declared by the layout
          items:
            $ref: '#/components/schemas/LayoutTemplateRecordRequest'
          minItems: 1
          type:
            - array
            - 'null'
        region:
          description: ISO alpha-2 region (uppercased) or XX
          examples:
            - BR
          minLength: 1
          type: string
        requiredFields:
          description: Field names the variant must declare
          items:
            type: string
          type:
            - array
            - 'null'
        variant:
          description: Operator/brand variant axis
          examples:
            - acme-cobranca
          minLength: 1
          type: string
      required:
        - region
        - family
        - variant
        - discriminatorStart
        - discriminatorLength
        - records
      type: object
    LayoutTemplateResponse:
      additionalProperties: false
      properties:
        createdAt:
          description: Creation timestamp (RFC 3339, UTC)
          examples:
            - '2025-01-15T10:30:00Z'
          format: date-time
          type: string
        discriminator:
          $ref: '#/components/schemas/LayoutTemplateDiscriminatorResponse'
          description: >-
            Record-type discriminator byte range the parser reads to select a
            record type
        formatKey:
          description: >-
            Canonical format descriptor key (region/family/variant) the template
            registers under
          examples:
            - br/cnab400/acme-cobranca
          type: string
        id:
          description: Template identifier
          examples:
            - 550e8400-e29b-41d4-a716-446655440000
          format: uuid
          type: string
        recordTypeCount:
          description: Number of record types the layout declares
          examples:
            - 1
          format: int64
          type: integer
        recordWidths:
          additionalProperties:
            format: int64
            type: integer
          description: Per-record-type fixed width in bytes, keyed by record type
          type: object
        records:
          description: >-
            Record types the layout declares, each with its fixed width and
            ordered byte-range fields, sorted by record type
          items:
            $ref: '#/components/schemas/LayoutTemplateRecordResponse'
          type:
            - array
            - 'null'
        requiredFields:
          description: Field names the variant must declare across its record types
          items:
            type: string
          type:
            - array
            - 'null'
        variantKey:
          description: In-file variant key the layout is keyed by
          examples:
            - acme-cobranca
          type: string
      required:
        - id
        - formatKey
        - variantKey
        - recordTypeCount
        - discriminator
        - records
        - recordWidths
        - requiredFields
        - createdAt
      type: object
    Detail:
      additionalProperties: false
      properties:
        code:
          description: >-
            Stable, machine-readable domain error code scoped to the emitting
            service (format: <SERVICE>-NNNN).
          examples:
            - ERR-0001
          type: string
        detail:
          description: >-
            A human-readable explanation specific to this occurrence of the
            problem.
          examples:
            - Property foo is required but is missing.
          type: string
        errors:
          description: Optional list of individual error details
          items:
            $ref: '#/components/schemas/ErrorDetail'
          type:
            - array
            - 'null'
        instance:
          description: >-
            A URI reference that identifies the specific occurrence of the
            problem.
          examples:
            - https://example.com/error-log/abc123
          format: uri
          type: string
        status:
          description: HTTP status code
          examples:
            - 400
          format: int64
          type: integer
        title:
          description: >-
            A short, human-readable summary of the problem type. This value
            should not change between occurrences of the error.
          examples:
            - Bad Request
          type: string
        type:
          default: about:blank
          description: A URI reference to human-readable documentation for the error.
          examples:
            - https://example.com/errors/example
          format: uri
          type: string
      type: object
    LayoutTemplateRecordRequest:
      additionalProperties: false
      properties:
        fields:
          description: Ordered positional fields of this record type
          items:
            $ref: '#/components/schemas/LayoutTemplateFieldRequest'
          type:
            - array
            - 'null'
        recordType:
          description: Record-type value the discriminator byte slice must match (e.g. "1")
          examples:
            - '1'
          type: string
        width:
          description: Fixed width in bytes every record of this type must be
          examples:
            - 33
          format: int64
          type: integer
      required:
        - recordType
        - width
        - fields
      type: object
    LayoutTemplateDiscriminatorResponse:
      additionalProperties: false
      properties:
        length:
          description: Discriminator width in bytes
          examples:
            - 1
          format: int64
          type: integer
        startByte:
          description: Zero-based byte offset of the record-type discriminator
          examples:
            - 0
          format: int64
          type: integer
      required:
        - startByte
        - length
      type: object
    LayoutTemplateRecordResponse:
      additionalProperties: false
      properties:
        fields:
          description: Ordered positional fields of this record type
          items:
            $ref: '#/components/schemas/LayoutTemplateFieldResponse'
          type:
            - array
            - 'null'
        recordType:
          description: Record-type value the discriminator byte slice matches (e.g. "1")
          examples:
            - '1'
          type: string
        width:
          description: Fixed width in bytes every record of this type must be
          examples:
            - 33
          format: int64
          type: integer
      required:
        - recordType
        - width
        - fields
      type: object
    ErrorDetail:
      additionalProperties: false
      properties:
        location:
          description: >-
            Where the error occurred, e.g. 'body.items[3].tags' or
            'path.thing-id'
          type: string
        message:
          description: Error message text
          type: string
        value:
          description: The value at the given location
      type: object
    LayoutTemplateFieldRequest:
      additionalProperties: false
      properties:
        kind:
          description: >-
            Value type: string (raw text), decimal (money/numeric verbatim
            token, parsed downstream), or date. A money column MUST be decimal
          examples:
            - decimal
          type: string
        length:
          description: Field width in bytes (must be greater than 0)
          examples:
            - 12
          format: int64
          type: integer
        name:
          description: >-
            Canonical field name this byte slice feeds (e.g. external_id,
            amount, currency, date)
          examples:
            - amount
          type: string
        startByte:
          description: Zero-based byte offset where the field begins
          examples:
            - 11
          format: int64
          type: integer
      required:
        - name
        - startByte
        - length
        - kind
      type: object
    LayoutTemplateFieldResponse:
      additionalProperties: false
      properties:
        kind:
          description: >-
            Value type: string (raw text), decimal (money/numeric verbatim
            token, parsed downstream), or date
          examples:
            - decimal
          type: string
        length:
          description: Field width in bytes
          examples:
            - 12
          format: int64
          type: integer
        name:
          description: >-
            Canonical field name this byte slice feeds (e.g. external_id,
            amount, currency, date)
          examples:
            - amount
          type: string
        startByte:
          description: Zero-based byte offset where the field begins
          examples:
            - 11
          format: int64
          type: integer
      required:
        - name
        - startByte
        - length
        - kind
      type: object
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: 'Bearer token authentication (format: "Bearer {token}")'

````