@spree/storefront-api-v2-sdk/src/interfaces/Relationships.ts

Node module to easily integrate your JavaScript or TypeScript application with Spree API V2. You can create an entirely custom Storefront in JS/TS with this package including one page checkout, Single Page Apps, PWAs and so on

export interface RelationType {
  id: string
  type: string
}

export interface IRelationships {
  [key: string]: {
    data: RelationType | RelationType[]
  }
}