vendure/server/src/api/product/product.api.graphql

type Query {
    products(languageCode: LanguageCode, take: Int, skip: Int): ProductList!
    product(id: ID!, languageCode: LanguageCode): Product
}

type Mutation {
    "Create a new Product"
    createProduct(input: CreateProductInput): Product!
    "Update an existing Product"
    updateProduct(input: UpdateProductInput): Product!
    "Add an OptionGroup to a Product"
    addOptionGroupToProduct(productId: ID!, optionGroupId: ID!): Product!
    "Remove an OptionGroup from a Product"
    removeOptionGroupFromProduct(productId: ID!, optionGroupId: ID!): Product!
    "Create a set of ProductVariants based on the OptionGroups assigned to the given Product"
    generateVariantsForProduct(productId: ID!): [ProductVariant!]!
    "Update existing ProductVariants"
    updateProductVariants(input: [UpdateProductVariantInput!]!): [ProductVariant]!
}

type ProductList implements PaginatedList {
    items: [Product!]!
    totalItems: Int!
}