Prisma

Prisma Aggregation API

Count, aggregate, and groupBy operations for analytics

Documentation GitHub OpenAPI

Operations 3

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

GET /{model}/count Count records that match a filter · Prisma Count matching records #

Ask an LLM

“How many rows in my User model match a given filter?”

“Can I see how many non-null values each field has in a model?”

Tell an agent

Count the {model} records where {where}.

Count non-null values of {select} in {model}.

GET /{model}/aggregate Compute sums, averages, min and max on a model · Prisma Aggregate records #

Ask an LLM

“What's the average and total of a numeric column across my records?”

“Can I get the minimum and maximum value of a field in one call?”

Tell an agent

Get the average of {avg_fields} across all {model} rows.

Sum {sum_fields} for {model} records matching {where}.

GET /{model}/groupBy Group records and aggregate each group · Prisma Group records and aggregate #

Ask an LLM

“How do I group my orders by status and total each group?”

“Can I drop groups whose aggregate doesn't meet a threshold?”

Tell an agent

Group {model} records by {by}.

Group {model} by {by}, keeping only groups where {having}.

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Prisma Client Aggregation API
  description: Auto-generated, type-safe query builder for Node.js and TypeScript that provides programmatic database access.
  version: 1.0.0
  contact:
    name: Prisma Support
    email: support@prisma.io
    url: https://www.prisma.io/support
  license:
    name: Apache-2.0
    url: https://opensource.org/licenses/Apache-2.0
  termsOfService: https://www.prisma.io/terms
servers:
- url: https://localhost:3000/api
  description: Local development server. Prisma Client is typically used as a library, not a REST API. This specification documents the operations available when exposed via a REST layer.
tags:
- name: Aggregation
  description: Count, aggregate, and groupBy operations for analytics
paths:
  /{model}/count:
    get:
      operationId: count
      summary: Prisma Count matching records
      description: Returns the count of records matching the filter criteria. Optionally provides field-level counts showing how many non-null values exist for each specified field.
      tags:
      - Aggregation
      parameters:
      - $ref: '#/components/parameters/ModelName'
      - name: where
        in: query
        description: JSON-encoded filter conditions
        schema:
          type: string
      - name: select
        in: query
        description: JSON-encoded field selection for field-level counts
        schema:
          type: string
      responses:
        '200':
          description: Successfully retrieved count
          content:
            application/json:
              schema:
                oneOf:
                - type: integer
                  description: Total count when no field selection
                - type: object
                  description: Field-level counts
                  additionalProperties:
                    type: integer
        '400':
          $ref: '#/components/responses/BadRequest'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /{model}/aggregate:
    get:
      operationId: aggregate
      summary: Prisma Aggregate records
      description: Performs aggregate calculations on matching records. Supports _count, _avg, _sum, _min, and _max operations on numeric fields with optional filtering and ordering.
      tags:
      - Aggregation
      parameters:
      - $ref: '#/components/parameters/ModelName'
      - name: where
        in: query
        description: JSON-encoded filter conditions
        schema:
          type: string
      - name: _count
        in: query
        description: Fields to count or true for total count
        schema:
          type: string
      - name: _avg
        in: query
        description: JSON-encoded specification of fields to average
        schema:
          type: string
      - name: _sum
        in: query
        description: JSON-encoded specification of fields to sum
        schema:
          type: string
      - name: _min
        in: query
        description: JSON-encoded specification of fields to find minimum
        schema:
          type: string
      - name: _max
        in: query
        description: JSON-encoded specification of fields to find maximum
        schema:
          type: string
      responses:
        '200':
          description: Successfully performed aggregation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AggregateResult'
        '400':
          $ref: '#/components/responses/BadRequest'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /{model}/groupBy:
    get:
      operationId: groupBy
      summary: Prisma Group records and aggregate
      description: Groups records by one or more fields and applies aggregate functions within each group. Supports filtering groups with having conditions and ordering groups by field values or aggregate results.
      tags:
      - Aggregation
      parameters:
      - $ref: '#/components/parameters/ModelName'
      - name: by
        in: query
        required: true
        description: JSON-encoded list of fields to group by
        schema:
          type: string
      - name: where
        in: query
        description: JSON-encoded filter conditions applied before grouping
        schema:
          type: string
      - name: having
        in: query
        description: JSON-encoded filter conditions applied after grouping
        schema:
          type: string
      - name: orderBy
        in: query
        description: JSON-encoded sort specification for groups
        schema:
          type: string
      responses:
        '200':
          description: Successfully grouped and aggregated records
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/GroupByResult'
        '400':
          $ref: '#/components/responses/BadRequest'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    AggregateResult:
      type: object
      description: Result of an aggregation operation
      properties:
        _count:
          type: object
          description: Count of records or field-level counts
          additionalProperties:
            type: integer
        _avg:
          type: object
          description: Average values for numeric fields
          additionalProperties:
            type: number
        _sum:
          type: object
          description: Sum of numeric field values
          additionalProperties:
            type: number
        _min:
          type: object
          description: Minimum values per field
          additionalProperties: true
        _max:
          type: object
          description: Maximum values per field
          additionalProperties: true
    GroupByResult:
      type: object
      description: A single group result from a groupBy operation
      additionalProperties: true
    PrismaError:
      type: object
      description: Error response from Prisma Client. Error codes follow the Pxxxx format documented at https://www.prisma.io/docs/orm/reference/error-reference
      properties:
        code:
          type: string
          description: Prisma error code (e.g., P2002 for unique constraint violation)
          pattern: ^P[0-9]{4}$
          examples:
          - P2002
          - P2025
        message:
          type: string
          description: Human-readable error description
        meta:
          type: object
          description: Additional error context
          additionalProperties: true
      required:
      - code
      - message
  responses:
    BadRequest:
      description: The request was invalid or malformed
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/PrismaError'
    InternalServerError:
      description: An unexpected error occurred
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/PrismaError'
  parameters:
    ModelName:
      name: model
      in: path
      required: true
      description: The Prisma model name (e.g., user, post, comment) as defined in the Prisma schema file
      schema:
        type: string
        examples:
        - user
        - post
externalDocs:
  description: Prisma Client API Reference
  url: https://www.prisma.io/docs/orm/reference/prisma-client-reference

Prisma Aggregation API

Operations 3

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OpenAPI Specification