string

Checks that the value is a primitive type and converts it to a string, for example 25 becomes "25". Prefer stricter rules where possible.

Error code: FORMAT_ERROR

Live example · edit rules or inputOpen in playground

rules

{
    payload: ['required', 'string']
}

{
    payload: ['required', 'string']
}

input

{
    payload: 25
}

{
    payload: 25
}

Validoutput

{
  "payload": "25"
}

You can treat this rule as a modifier.

string ​