How to validate `Record<string, string>`?

My naïve attempt:

const Response = type({
  "*": "string",
});
type Response = typeof Response.infer;

const createResponse = (): Response => {
  const values: Record<string, string> = {
    value1: "one",
    value2: "two",
  };
  return values;
};

const Response = type({
  "*": "string",
});
type Response = typeof Response.infer;

const createResponse = (): Response => {
  const values: Record<string, string> = {
    value1: "one",
    value2: "two",
  };
  return values;
};

This results in error:

Property '"*"' is missing in type 'Record<string, string>' but required in type '{ "*": string; }'.

Property '"*"' is missing in type 'Record<string, string>' but required in type '{ "*": string; }'.

3 Replies

SynthLuvrOP•6mo ago

const Response = type({
  "[string]": "string",
});

const Response = type({
  "[string]": "string",
});

^ works makes sense

TizzySaurus•6mo ago

Soon™️ type("Record<string, string>") will work too :) But yeah, for now you have to use index signatures

ssalbdivad•6mo ago

It will be genuinely soon! I just want to get the docs done first for the stuff that is already there like this 😛 Then finishing up generics and pattern matching will be like my victory lap

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How to validate `Record<string, string>`?