---
title: "List Reaction items"
method: GET
path: "/api/v3/reaction/items"
tags: ["Reaction"]
---

# List Reaction items

`GET /api/v3/reaction/items`

## Request

- Base URL: `https://{tenant_name}.benchling.com`
- URL: `https://{tenant_name}.benchling.com/api/v3/reaction/items`
- Auth: HTTP bearer

List Reaction items.

## Query parameters

- `archiveReason.anyOf` string[]
- `archived.anyOf` boolean[]
- `createdAt.gt` string, datetime
- `createdAt.gte` string, datetime
- `createdAt.lt` string, datetime
- `createdAt.lte` string, datetime
- `creator.anyOf` string[]
- `id.anyOf` string[]
- `modifiedAt.gt` string, datetime
- `modifiedAt.gte` string, datetime
- `modifiedAt.lt` string, datetime
- `modifiedAt.lte` string, datetime
- `name.anyOf` string[]
- `name.anyOf.caseSensitive` string[]
- `nextToken` string
- `omit` string[]
- `pageSize` integer
- `returning` string[]
- `sort` 'createdAt:asc' | 'createdAt:desc' | 'modifiedAt:asc' | 'modifiedAt:desc'

## Headers

- `EARLY-ACCESS` string

## Response `200`

OK

- ReactionPaginatedList
  - `items` Reaction[]
    - `__typename` string
    - `archiveReason` string, nullable
    - `archived` boolean
    - `authors` string, uri, nullable
    - `components` ReactionComponentUnion[]
      - union: Union of StandardReactionComponent, ReactantComponent, ProductComponent
        - object: Reaction component sub-type for products
          - `__typename` 'ProductComponent', required: Discriminator value: ProductComponent
          - `amountActual` string, decimal, nullable
          - `amountPlan` string, decimal, nullable
          - `amountUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `amountYield` string, decimal, nullable
          - `calculationBase` 'MOL_EQUIVALENT' | 'MOL_PLAN' | 'AMOUNT_PLAN'
          - `concentration` string, decimal, nullable
          - `concentrationUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `linkedLot` CustomEntityRef
            - `__typename` string
            - `id` string, api_id
          - `linkedMolecule` union: Union of InternalLinkedMolecule, ExternalLinkedMolecule
            - object: Linked molecule from external registries/catalogs
              - …
            - object: Linked molecule from the Benchling registry (internal)
              - …
          - `molActual` string, decimal, nullable
          - `molEquivalent` string, decimal, nullable
          - `molPlan` string, decimal, nullable
          - `molUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `purity` string, decimal, nullable
          - `role` 'REACTANT' | 'PRODUCT' | 'REAGENT' | 'BYPRODUCT' | 'SOLVENT' | 'CATALYST'
        - object: Reaction component sub-type for reactants
          - `__typename` 'ReactantComponent', required: Discriminator value: ReactantComponent
          - `amountActual` string, decimal, nullable
          - `amountPlan` string, decimal, nullable
          - `amountUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `calculationBase` 'MOL_EQUIVALENT' | 'MOL_PLAN' | 'AMOUNT_PLAN'
          - `concentration` string, decimal, nullable
          - `concentrationUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `isLimitingReactant` boolean
          - `linkedLot` CustomEntityRef
            - `__typename` string
            - `id` string, api_id
          - `linkedMolecule` union: Union of InternalLinkedMolecule, ExternalLinkedMolecule
            - object: Linked molecule from external registries/catalogs
              - …
            - object: Linked molecule from the Benchling registry (internal)
              - …
          - `molActual` string, decimal, nullable
          - `molEquivalent` string, decimal, nullable
          - `molPlan` string, decimal, nullable
          - `molUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `purity` string, decimal, nullable
          - `role` 'REACTANT' | 'PRODUCT' | 'REAGENT' | 'BYPRODUCT' | 'SOLVENT' | 'CATALYST'
        - object: Generic type for most reaction components
          - `__typename` string, required
          - `amountActual` string, decimal, nullable
          - `amountPlan` string, decimal, nullable
          - `amountUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `calculationBase` 'MOL_EQUIVALENT' | 'MOL_PLAN' | 'AMOUNT_PLAN'
          - `concentration` string, decimal, nullable
          - `concentrationUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `linkedLot` CustomEntityRef
            - `__typename` string
            - `id` string, api_id
          - `linkedMolecule` union: Union of InternalLinkedMolecule, ExternalLinkedMolecule
            - object: Linked molecule from external registries/catalogs
              - …
            - object: Linked molecule from the Benchling registry (internal)
              - …
          - `molActual` string, decimal, nullable
          - `molEquivalent` string, decimal, nullable
          - `molPlan` string, decimal, nullable
          - `molUnit` UnitRef
            - `__typename` string
            - `id` string, api_id
          - `purity` string, decimal, nullable
          - `role` 'REACTANT' | 'PRODUCT' | 'REAGENT' | 'BYPRODUCT' | 'SOLVENT' | 'CATALYST'
    - `createdAt` string, datetime, nullable
    - `creator` PrincipalRef
      - `__typename` string
      - `id` string, api_id
    - `entry` EntryRef
      - `__typename` string
      - `id` string, api_id
    - `folder` FolderRef
      - `__typename` string
      - `id` string, api_id
    - `id` string
    - `modifiedAt` string, datetime, nullable
    - `name` string
    - `webUrl` string
  - `nextToken` string, nullable

## Other responses

- `400`: Bad Request
- `403`: Forbidden
- `404`: Not Found
- `429`: Too Many Requests
- `500`: Internal Server Error

---

[API](https://skmtc.dev/benchling/apis/benchling-api.md) - [All operations](https://skmtc.dev/benchling/apis/benchling-api/llms.txt) - [OpenAPI document](https://skmtc.dev/benchling/apis/benchling-api/revisions/c9f087b98b8b?raw)