A gist using ajv to verify JSON

ajv_verify.ts

function parsePost(yourDataStr:string) :YourClass|null{
  //require你所生成的schema, 不知道为什么用import的时候对json会报错, resolveJsonModule已经开了
  const yourSchema=require("./yourSchema")
  const ajv = new Ajv({allErrors:true}) 
  //想要快一些应该可以先Compile罢
  try {
    const yourDataJson = JSON.parse(yourDataStr)
    const isValid = ajv.validate(yourSchema,yourDataStr) //return boolean
    if (isValid) {
      return yourDataJson as YourClass
    } else {
      return null
    }
  } catch{
    return null
  }
}