M3ter CompoundAggregation API

openapi: 3.2.0
info:
  title: m3ter Compound Aggregation API
  description: 'If you are using Postman, you can:

    - Use the **Download** button above to download the m3ter Open API spec JSON file and then import this file as the **m3ter API Collection** into your Workspace.'
  version: '1.0'
  x-logo:
    url: https://console.m3ter.com/m3ter-logo-black.svg
servers:
- url: https://api.m3ter.com
security:
- OAuth2: []
tags:
- name: CompoundAggregation
  description: Endpoints for Compound Aggregation related operations such as creation, update, list and delete.
paths:
  /organizations/{orgId}/compoundaggregations/{id}:
    get:
      tags:
      - CompoundAggregation
      summary: Retrieve CompoundAggregation
      description: 'Retrieve a CompoundAggregation using the given UUID.


        This endpoint returns a specific CompoundAggregation associated with an Organization. It provides detailed information about the CompoundAggregation.'
      operationId: GetCompoundAggregation
      parameters:
      - name: orgId
        in: path
        description: The unique identifier (UUID) for your Organization. The Organization represents your company as a direct customer of our service.
        required: true
        style: simple
        explode: false
        schema:
          type: string
          deprecated: true
          x-stainless-deprecation-message: the org id should be set at the client level instead
      - name: id
        in: path
        description: The unique identifier (UUID) of the CompoundAggregation to retrieve.
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        '200':
          description: Returns the CompoundAggregation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CompoundAggregationResponse'
        4XX:
          $ref: '#/components/responses/Error'
        5XX:
          $ref: '#/components/responses/Error'
    put:
      tags:
      - CompoundAggregation
      summary: Update CompoundAggregation
      description: 'Update the CompoundAggregation with the given UUID.


        This endpoint allows you to update the details of a specific CompoundAggregation associated with an Organization. Use it to modify details of an existing CompoundAggregation such as the Calculation formula.


        **Note:** If you have created Custom Fields for a Compound Aggregation, when you use this endpoint to update the Compound Aggregation use the `customFields` parameter to preserve those Custom Fields. If you omit them from the update request, they will be lost.'
      operationId: PutCompoundAggregation
      parameters:
      - name: orgId
        in: path
        description: The unique identifier (UUID) for your Organization. The Organization represents your company as a direct customer of our service.
        required: true
        style: simple
        explode: false
        schema:
          type: string
          deprecated: true
          x-stainless-deprecation-message: the org id should be set at the client level instead
      - name: id
        in: path
        description: The unique identifier (UUID) of the CompoundAggregation to update.
        required: true
        style: simple
        explode: false
        schema:
          type: string
      requestBody:
        description: ''
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CompoundAggregationRequest'
        required: true
      responses:
        '200':
          description: Returns the updated CompoundAggregation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AggregationResponse'
        4XX:
          $ref: '#/components/responses/Error'
        5XX:
          $ref: '#/components/responses/Error'
    delete:
      tags:
      - CompoundAggregation
      summary: Delete CompoundAggregation
      description: 'Delete a CompoundAggregation with the given UUID.


        This endpoint enables deletion of a specific CompoundAggregation associated with a specific Organization. Useful when you need to remove an existing CompoundAggregation that is no longer required, such as when changing pricing or planning models.'
      operationId: DeleteCompoundAggregation
      parameters:
      - name: orgId
        in: path
        description: The unique identifier (UUID) for your Organization. The Organization represents your company as a direct customer of our service.
        required: true
        style: simple
        explode: false
        schema:
          type: string
          deprecated: true
          x-stainless-deprecation-message: the org id should be set at the client level instead
      - name: id
        in: path
        description: The unique identifier (UUID) of the CompoundAggregation to delete.
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        '200':
          description: Returns the deleted CompoundAggregation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CompoundAggregationResponse'
        4XX:
          $ref: '#/components/responses/Error'
        5XX:
          $ref: '#/components/responses/Error'
  /organizations/{orgId}/compoundaggregations:
    get:
      tags:
      - CompoundAggregation
      summary: List CompoundAggregations
      description: 'Retrieve a list of all CompoundAggregations.


        This endpoint retrieves a list of CompoundAggregations associated with a specific organization. CompoundAggregations enable you to define numerical measures based on simple Aggregations of usage data. It supports pagination, and includes various query parameters to filter the CompoundAggregations based on Product, CompoundAggregation IDs or short codes.'
      operationId: ListCompoundAggregations
      parameters:
      - name: orgId
        in: path
        description: The unique identifier (UUID) for your Organization. The Organization represents your company as a direct customer of our service.
        required: true
        style: simple
        explode: false
        schema:
          type: string
          deprecated: true
          x-stainless-deprecation-message: the org id should be set at the client level instead
      - name: pageSize
        in: query
        description: Specifies the maximum number of CompoundAggregations to retrieve per page.
        required: false
        allowEmptyValue: true
        style: form
        explode: true
        schema:
          maximum: 100
          minimum: 1
          type: integer
          format: int32
      - name: nextToken
        in: query
        description: The `nextToken` for multi-page retrievals. It is used to fetch the next page of CompoundAggregations in a paginated list.
        required: false
        allowEmptyValue: true
        style: form
        explode: true
        schema:
          type: string
      - name: productId
        in: query
        description: An optional parameter to filter the CompoundAggregations based on specific Product unique identifiers (UUIDs).
        required: false
        allowEmptyValue: true
        style: form
        explode: true
        schema:
          type: array
          items:
            type: string
      - name: ids
        in: query
        description: An optional parameter to retrieve specific CompoundAggregations based on their unique identifiers (UUIDs).
        required: false
        allowEmptyValue: true
        style: form
        explode: true
        schema:
          type: array
          items:
            type: string
      - name: codes
        in: query
        description: An optional parameter to retrieve specific CompoundAggregations based on their short codes.
        required: false
        allowEmptyValue: true
        style: form
        explode: true
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: Returns the list of CompoundAggregations
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaginatedCompoundAggregationResponseData'
        4XX:
          $ref: '#/components/responses/Error'
        5XX:
          $ref: '#/components/responses/Error'
    post:
      tags:
      - CompoundAggregation
      summary: Create CompoundAggregation
      description: 'Create a new CompoundAggregation.


        This endpoint allows you to create a new CompoundAggregation for a specific Organization. The request body must include all the necessary details such as the Calculation formula.'
      operationId: PostCompoundAggregation
      parameters:
      - name: orgId
        in: path
        description: The unique identifier (UUID) for your Organization. The Organization represents your company as a direct customer of our service.
        required: true
        style: simple
        explode: false
        schema:
          type: string
          deprecated: true
          x-stainless-deprecation-message: the org id should be set at the client level instead
      requestBody:
        description: ''
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CompoundAggregationRequest'
        required: true
      responses:
        '200':
          description: Returns the created CompoundAggregation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AggregationResponse'
        4XX:
          $ref: '#/components/responses/Error'
        5XX:
          $ref: '#/components/responses/Error'
components:
  schemas:
    AbstractAggregationRequest:
      type: object
      description: ''
      allOf:
      - $ref: '#/components/schemas/AbstractRequestWithCustomFields'
      - $ref: '#/components/schemas/AbstractRequest'
      - required:
        - name
        - quantityPerUnit
        - rounding
        - unit
        properties:
          version:
            type: integer
            description: 'The version number of the Aggregation:

              - **Create entity:** Not valid for initial insertion of new Aggregation - *do not use for Create*. On initial Create, version is set at 1 and listed in the response.

              - **Update Entity:**  On Update, version is required and must match the existing version because a check is performed to ensure sequential versioning is preserved. Version is incremented by 1 and listed in the response.'
            format: int64
            x-stainless-terraform-configurability: computed
            x-stainless-terraform-always-send: true
          name:
            maxLength: 200
            minLength: 1
            type: string
            description: Descriptive name for the Aggregation.
          rounding:
            description: "Specifies how you want to deal with non-integer, fractional number Aggregation values.\n\n**NOTES:**\n* **NEAREST** rounds to the nearest half: 5.1 is rounded to 5, and 3.5 is rounded to 4.\n* Also used in combination with `quantityPerUnit`. Rounds the number of units after `quantityPerUnit` is applied. If you set `quantityPerUnit` to a value other than one, you would typically set Rounding to **UP**. For example, suppose you charge by kilobytes per second (KiBy/s), set `quantityPerUnit` = 500, and set charge rate at $0.25 per unit used. If your customer used 48,900 KiBy/s in a billing period, the charge would be 48,900 / 500 = 97.8 rounded up to 98 * 0.25 = $2.45.\n\nEnum: ???UP??? ???DOWN??? ???NEAREST??? ???NONE???\n\n "
            $ref: '#/components/schemas/Rounding'
          quantityPerUnit:
            type: number
            description: 'Defines how much of a quantity equates to 1 unit. Used when setting the price per unit for billing purposes - if charging for kilobytes per second (KiBy/s) at rate of $0.25 per 500 KiBy/s, then set quantityPerUnit to 500 and price Plan at $0.25 per unit.


              **Note:** If `quantityPerUnit` is set to a value other than one, `rounding` is typically set to `"UP"`.'
            exclusiveMinimum: 0
          unit:
            maxLength: 50
            minLength: 1
            type: string
            description: User defined label for units shown for Bill line items, indicating to your customers what they are being charged for.
          code:
            maxLength: 80
            pattern: ^[\p{L}_$][\p{L}_$0-9]*$
            type: string
            description: Code of the new Aggregation. A unique short code to identify the Aggregation.
            example: example_code
          accountingProductId:
            maxLength: 36
            minLength: 36
            type: string
            description: Optional Product ID this Aggregation should be attributed to for accounting purposes.
    CompoundAggregationRequest:
      type: object
      description: ''
      allOf:
      - $ref: '#/components/schemas/AbstractAggregationRequest'
      - $ref: '#/components/schemas/AbstractRequestWithCustomFields'
      - $ref: '#/components/schemas/AbstractRequest'
      - required:
        - calculation
        properties:
          version:
            type: integer
            description: ''
            format: int64
            x-stainless-terraform-configurability: computed
            x-stainless-terraform-always-send: true
          productId:
            maxLength: 36
            minLength: 36
            type: string
            description: 'Unique identifier (UUID) of the Product the CompoundAggregation belongs to.


              **Note:** Omit this parameter if you want to create a *Global* CompoundAggregation.'
          calculation:
            maxLength: 5000
            minLength: 1
            type: string
            description: 'String that represents the formula for the calculation. This formula determines how the CompoundAggregation value is calculated. The calculation can reference  simple Aggregations or Custom Fields. This field is required when creating or updating a CompoundAggregation.


              **NOTE:** If a simple Aggregation referenced by a Compound Aggregation has a **Quantity per unit** defined or a **Rounding** defined, these will not be factored into the value used by the calculation. For example, if the simple Aggregation referenced has a base value of 100 and has **Quantity per unit** set at 10, the Compound Aggregation calculation *will use the base value of 100 not 10*.'
          evaluateNullAggregations:
            type: boolean
            description: 'Boolean True / False flag:

              - **TRUE** - set to TRUE if you want to allow null values from the simple Aggregations referenced in the Compound Aggregation to be passed in. Simple Aggregations based on Meter Target Fields where no usage data is available will have null values.

              - **FALSE** Default.


              **Note:** If any of the simple Aggregations you reference in a Compound Aggregation calculation might have null values, you must set their Default Value to 0. This ensures that any null values passed into the Compound Aggregation are passed in correctly with value = 0.

              '
    AbstractRequest:
      type: object
      properties:
        version:
          type: integer
          description: 'The version number of the entity:

            - **Create entity:** Not valid for initial insertion of new entity - *do not use for Create*. On initial Create, version is set at 1 and listed in the response.

            - **Update Entity:**  On Update, version is required and must match the existing version because a check is performed to ensure sequential versioning is preserved. Version is incremented by 1 and listed in the response.'
          format: int64
          x-stainless-terraform-configurability: computed
          x-stainless-terraform-always-send: true
      description: ''
    AbstractAggregationResponse:
      type: object
      description: ''
      allOf:
      - $ref: '#/components/schemas/AbstractResponseWithCustomFields'
      - $ref: '#/components/schemas/AbstractResponse'
      - properties:
          name:
            type: string
            description: Descriptive name for the Aggregation.
          rounding:
            description: 'Specifies how you want to deal with non-integer, fractional number Aggregation values.


              **NOTES:**

              * **NEAREST** rounds to the nearest half: 5.1 is rounded to 5, and 3.5 is rounded to 4.

              * Also used in combination with `quantityPerUnit`. Rounds the number of units after `quantityPerUnit` is applied. If you set `quantityPerUnit` to a value other than one, you would typically set Rounding to **UP**. For example, suppose you charge by kilobytes per second (KiBy/s), set `quantityPerUnit` = 500, and set charge rate at $0.25 per unit used. If your customer used 48,900 KiBy/s in a billing period, the charge would be 48,900 / 500 = 97.8 rounded up to 98 * 0.25 = $2.45.


              Enum: ???UP??? ???DOWN??? ???NEAREST??? ???NONE???

              '
            $ref: '#/components/schemas/Rounding'
          quantityPerUnit:
            type: number
            description: 'Defines how much of a quantity equates to 1 unit. Used when setting the price per unit for billing purposes - if charging for kilobytes per second (KiBy/s) at rate of $0.25 per 500 KiBy/s, then set quantityPerUnit to 500 and price Plan at $0.25 per unit.


              If `quantityPerUnit` is set to a value other than one, rounding is typically set to UP.'
          unit:
            type: string
            description: "User defined or following the *Unified Code for Units of Measure* (UCUM). \n\nUsed as the label for billing, indicating to your customers what they are being charged for."
          code:
            type: string
            description: Code of the Aggregation. A unique short code to identify the Aggregation.
          segments:
            type: array
            description: '*(Optional)*. Used when creating a segmented Aggregation, which segments the usage data collected by a single Meter. Works together with `segmentedFields`.


              Contains the values that are to be used as the segments, read from the fields in the meter pointed at by `segmentedFields`.  '
            items:
              type: object
              additionalProperties:
                type: string
          accountingProductId:
            type: string
            description: Optional Product ID this Aggregation should be attributed to for accounting purposes.
    CompoundAggregationResponse:
      type: object
      description: ''
      allOf:
      - $ref: '#/components/schemas/AbstractAggregationResponse'
      - $ref: '#/components/schemas/AbstractResponseWithCustomFields'
      - $ref: '#/components/schemas/AbstractResponse'
      - properties:
          calculation:
            type: string
            description: This field is a string that represents the formula for the calculation. This formula determines how the CompoundAggregation is calculated from the underlying usage data.
          productId:
            type: string
            description: 'This field represents the unique identifier (UUID) of the Product that is associated with the CompoundAggregation. '
          evaluateNullAggregations:
            type: boolean
            description: "This is a boolean True / False flag. \n\nIf set to TRUE, the calculation will be evaluated even if the referenced aggregation has no usage data."
          dtCreated:
            type: string
            description: The date and time *(in ISO-8601 format)* when the CompoundAggregation was created.
            format: date-time
            x-stainless-skip:
            - terraform
          dtLastModified:
            type: string
            description: The date and time *(in ISO-8601 format)* when the CompoundAggregation was last modified.
            format: date-time
            x-stainless-skip:
            - terraform
          createdBy:
            type: string
            description: The unique identifier (UUID) of the user who created this CompoundAggregation.
            x-stainless-skip:
            - terraform
          lastModifiedBy:
            type: string
            description: The unique identifier (UUID) of the user who last modified this CompoundAggregation.
            x-stainless-skip:
            - terraform
    AbstractRequestWithCustomFields:
      type: object
      description: ''
      allOf:
      - $ref: '#/components/schemas/AbstractRequest'
      - properties:
          customFields:
            type: object
            description: 'User defined fields enabling you to attach custom data. The value for a custom field can be either a string or a number.


              If `customFields` can also be defined for this entity at the Organizational level, `customField` values defined at individual level override values of `customFields` with the same name defined at Organization level.


              See [Working with Custom Fields](https://www.m3ter.com/docs/guides/creating-and-managing-products/working-with-custom-fields) in the m3ter documentation for more information.'
            maxItems: 100
            additionalProperties:
              anyOf:
              - title: StringCustomFieldReq
                type: string
              - title: IntegerCustomFieldReq
                type: integer
              - title: NumberCustomFieldReq
                type: number
    AbstractResponse:
      required:
      - id
      type: object
      properties:
        id:
          type: string
          description: 'The UUID of the entity. '
        version:
          type: integer
          description: 'The version number:

            - **Create:** On initial Create to insert a new entity, the version is set at 1 in the response.

            - **Update:** On successful Update, the version is incremented by 1 in the response.'
          format: int64
          x-stainless-terraform-configurability: computed
          x-stainless-terraform-always-send: true
      description: ''
    Rounding:
      type: string
      description: 'Specifies how you want to deal with non-integer, fractional number Aggregation values.


        **NOTES:**

        * "NEAREST" rounds to the nearest half: 5.1 is rounded to 5, and 3.5 is rounded to 4.

        * Also used in combination with `quantityPerUnit`. Rounds the number of units after `quantityPerUnit` is applied. If you set `quantityPerUnit` to a value other than one, you would typically set Rounding to **UP**. For example, suppose you charge by kilobytes per second (KiBy/s), set `quantityPerUnit` = 500, and set charge rate at $0.25 per unit used. If your customer used 48,900 KiBy/s in a billing period, the charge would be 48,900 / 500 = 97.8 rounded up to 98 * 0.25 = $2.45. '
      enum:
      - UP
      - DOWN
      - NEAREST
      - NONE
    AbstractResponseWithCustomFields:
      type: object
      description: ''
      allOf:
      - $ref: '#/components/schemas/AbstractResponse'
      - properties:
          customFields:
            type: object
            description: 'User defined fields enabling you to attach custom data. The value for a custom field can be either a string or a number.


              If `customFields` can also be defined for this entity at the Organizational level,`customField` values defined at individual level override values of `customFields` with the same name defined at Organization level.


              See [Working with Custom Fields](https://www.m3ter.com/docs/guides/creating-and-managing-products/working-with-custom-fields) in the m3ter documentation for more information.'
            additionalProperties:
              anyOf:
              - title: StringCustomFieldRes
                type: string
              - title: IntegerCustomFieldRes
                type: integer
              - title: NumberCustomFieldRes
                type: number
    PaginatedCompoundAggregationResponseData:
      type: object
      properties:
        data:
          type: array
          description: ''
          items:
            $ref: '#/components/schemas/CompoundAggregationResponse'
        nextToken:
          type: string
          description: ''
      description: ''
    AggregationResponse:
      type: object
      description: ''
      allOf:
      - $ref: '#/components/schemas/AbstractAggregationResponse'
      - $ref: '#/components/schemas/AbstractResponseWithCustomFields'
      - $ref: '#/components/schemas/AbstractResponse'
      - properties:
          meterId:
            type: string
            description: 'The UUID of the Meter used as the source of usage data for the Aggregation.


              Each Aggregation is a child of a Meter, so the Meter must be selected. '
          targetField:
            type: string
            description: '`Code` of the target `dataField` or `derivedField` on the Meter used as the basis for the Aggregation.'
          aggregation:
            description: "Specifies the computation method applied to usage data collected in `targetField`. Aggregation unit value depends on the **Category** configured for the selected targetField.\n\nEnum: \n\n* **SUM**. Adds the values. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.\n\n* **MIN**. Uses the minimum value. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.\n\n* **MAX**. Uses the maximum value. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.\n\n* **COUNT**. Counts the number of values. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.\n\n* **LATEST**. Uses the most recent value. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`. Note: Based on the timestamp (`ts`) value of usage data measurement submissions. If using this method, please ensure *distinct* `ts` values are used for usage data measurment submissions.\n\n* **MEAN**. Uses the arithmetic mean of the values. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.\n\n* **UNIQUE**. Uses unique values and returns a count of the number of unique values. Can be applied to a **Metadata** `targetField`.\n\n* **CUSTOM_SQL**. Uses an SQL query expression. The `customSQL` parameter is used for the SQL query."
            $ref: '#/components/schemas/Aggregation'
          segmentedFields:
            type: array
            description: '*(Optional)*. Used when creating a segmented Aggregation, which segments the usage data collected by a single Meter. Works together with `segments`.


              The `Codes` of the fields in the target Meter to use for segmentation purposes.


              String `dataFields` on the target Meter can be segmented. Any string `derivedFields` on the target Meter, such as one that concatenates two string `dataFields`, can also be segmented.'
            items:
              type: string
          defaultValue:
            type: number
            description: 'Aggregation value used when no usage data is available to be aggregated. *(Optional)*.


              **Note:** Set to 0, if you expect to reference the Aggregation in a Compound Aggregation. This ensures that any null values are passed in correctly to the Compound Aggregation calculation with a value = 0.'
          customSql:
            type: string
            description: The SQL query expression to be used for a Custom SQL Aggregation.
          dtCreated:
            type: string
            description: The DateTime when the aggregation was created *(in ISO 8601 format)*.
            format: date-time
            x-stainless-skip:
            - terraform
          dtLastModified:
            type: string
            description: The DateTime when the aggregation was last modified *(in ISO 8601 format)*.
            format: date-time
            x-stainless-skip:
            - terraform
          createdBy:
            type: string
            description: The id of the user who created this aggregation.
            x-stainless-skip:
            - terraform
          lastModifiedBy:
            type: string
            description: The id of the user who last modified this aggregation.
            x-stainless-skip:
            - terraform
    Aggregation:
      type: string
      description: 'Specifies the computation method applied to usage data collected in `targetField`. Aggregation unit value depends on the **Category** configured for the selected targetField.


        * **SUM**. Adds the values. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.


        * **MIN**. Uses the minimum value. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.


        * **MAX**. Uses the maximum value. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.


        * **COUNT**. Counts the number of values. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.


        * **LATEST**. Uses the most recent value. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`. Note: Based on the timestamp `ts` value of usage data measurement submissions. If using this method, please ensure *distinct* `ts` values are used for usage data measurement submissions.


        * **MEAN**. Uses the arithmetic mean of the values. Can be applied to a **Measure**, **Income**, or **Cost** `targetField`.


        * **UNIQUE**. Uses unique values and returns a count of the number of unique values. Can be applied to a **Metadata** `targetField`.'
      enum:
      - SUM
      - MIN
      - MAX
      - COUNT
      - LATEST
      - MEAN
      - UNIQUE
      - CUSTOM_SQL
  responses:
    Error:
      description: Error message
      content:
        application/json:
          schema:
            type: object
            properties:
              message:
                type: string
  securitySchemes:
    OAuth2:
      type: oauth2
      description: "m3ter supports machine to machine authentication using the `clientCredentials` OAuth2 flow.\n\nThe `authorizationCode` flow controls access for human users via the m3ter Console application. \n"
      flows:
        clientCredentials:
          tokenUrl: /oauth/token
          scopes:
            m3ter-resources/m3ter-scope: m3ter resources
            measurements:upload: Upload measurements
            measurements:fileUpload: Upload file
            measurements:retrieve: Retrieve measurements
        authorizationCode:
          authorizationUrl: https://m3ter.auth.us-east-1.amazoncognito.com/oauth2/authorize
          tokenUrl: https://m3ter.auth.us-east-1.amazoncognito.com/oauth2/token
          scopes:
            m3ter-resources/m3ter-scope: m3ter resources
            openid: OpenID
            email: email
            measurements:upload: Upload measurements
            measurements:fileUpload: Upload file
            measurements:retrieve: Retrieve measurements