验证器在 graphql 中总是返回空答案

【问题标题】：Validator always return empty in graphql验证器在 graphql 中总是返回空
【发布时间】：2021-12-29 23:05:37
【问题描述】：

问题是，在使用以下代码验证请求后，我无法向 MongoDB 发出请求：

module.exports.validateRegisterInput = (
  username,
  email,
  password,
  confirmPassword
) => {
  const errors = {};

  if (username.trim() === "") {
    errors.username = "Username must be provided";
  }
  if (email.trim() === "") {
    errors.email = "Email must be provided";
  } else {
    const validEmail =
      /^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$/;
    if (!email.match(validEmail)) {
      errors.email = "Email must be valid";
    }
  }
  if (password === "") {
    errors.password = "Password must be provided";
  }
  if (password !== confirmPassword) {
    errors.password = "Passwords must match";
  }

  return {
    errors,
    vaild: Object.keys(errors).length < 1,
  };
};

验证器工作正常并检查请求是否有任何错误，但一旦请求没有问题，它就不会让我发送请求并引发错误，我也在以下列方式使用验证器：

module.exports = {
  Mutation: {
    async register(
      parent,
      { registerInput: { username, email, password, confirmPassword } }
    ) {
      const { valid, errors } = validateRegisterInput(
        username,
        email,
        password,
        confirmPassword
      );

      if (!valid) {
        throw new UserInputError("Errors", { errors });
      }
...

【问题讨论】：

标签： javascript validation graphql

【解决方案1】：

所以，我解决了问题，问题是我没有直接调用问题并将其更改为：

validateRegisterInput(username, email, password, confirmPassword);

并在验证器中添加错误，而不是在索引中

const { UserInputError } = require("apollo-server");

module.exports.validateRegisterInput = (
  username,
  email,
  password,
  confirmPassword
) => {
  if (username.trim() === "") {
    throw new UserInputError("Username must be provided", {
      errors: {
        username: "Username must be provided",
      },
    });
  }
  if (email.trim() === "") {
    throw new UserInputError("Email must be provided", {
      errors: {
        email: "Email must be provided",
      },
    });
  } else {
    const validEmail =
      /^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$/;
    if (!email.match(validEmail)) {
      throw new UserInputError("Email must be correct", {
        errors: {
          email: "Email must be correct",
        },
      });
    }
  }
  if (password === "") {
    throw new UserInputError("Password must be provided", {
      errors: {
        password: "Password must be provided",
      },
    });
  }
  if (password !== confirmPassword) {
    throw new UserInputError("Passwords must match", {
      errors: {
        password: "Password must match",
      },
    });
  }
};

【讨论】：