GraphQL Code Generator (a.k.a. graphql-codegen) のプラグインとして graphql-codegen-typescript-validation-schema (Star ください!) を利用すると yup や zod といったフロントエンド validation 用の schema も自動で生成できます。 例えばこのような GraphQL Schema を与えます。ここで記述している constraint directive は confuser/graphql-constraint-directive で提供されているものを想定してます。 input ExampleInput { email: String! @required(msg: "Hello, World!") @constraint(minLength: 50, format:
![graphql-codegen は validation 用の schema も自動で生成できる (yup と zod)](https://cdn-ak-scissors.b.st-hatena.com/image/square/8264e1977938b430cc0f29647dba111850cefd13/height=288;version=1;width=512/https%3A%2F%2Fres.cloudinary.com%2Fzenn%2Fimage%2Fupload%2Fs--L2K97DkT--%2Fc_fit%252Cg_north_west%252Cl_text%3Anotosansjp-medium.otf_55%3Agraphql-codegen%252520%2525E3%252581%2525AF%252520validation%252520%2525E7%252594%2525A8%2525E3%252581%2525AE%252520schema%252520%2525E3%252582%252582%2525E8%252587%2525AA%2525E5%25258B%252595%2525E3%252581%2525A7%2525E7%252594%25259F%2525E6%252588%252590%2525E3%252581%2525A7%2525E3%252581%25258D%2525E3%252582%25258B%252520%252528yup%252520%2525E3%252581%2525A8%252520zod%252529%252Cw_1010%252Cx_90%252Cy_100%2Fg_south_west%252Cl_text%3Anotosansjp-medium.otf_37%3Acodehex%252Cx_203%252Cy_121%2Fg_south_west%252Ch_90%252Cl_fetch%3AaHR0cHM6Ly9zdG9yYWdlLmdvb2dsZWFwaXMuY29tL3plbm4tdXNlci11cGxvYWQvYXZhdGFyLzQ1ZWY0NmIwNWMuanBlZw%3D%3D%252Cr_max%252Cw_90%252Cx_87%252Cy_95%2Fv1627283836%2Fdefault%2Fog-base-w1200-v2.png)