* Updating everything except the license headers themselves * Applying ESLint rules * Manually replacing the stragglers
66 lines
2.4 KiB
TypeScript
66 lines
2.4 KiB
TypeScript
/*
|
|
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
|
|
* or more contributor license agreements. Licensed under the Elastic License
|
|
* 2.0; you may not use this file except in compliance with the Elastic License
|
|
* 2.0.
|
|
*/
|
|
|
|
import { fold } from 'fp-ts/lib/Either';
|
|
import { identity } from 'fp-ts/lib/function';
|
|
import { pipe } from 'fp-ts/lib/pipeable';
|
|
import { Context, Errors, IntersectionType, Type, UnionType, ValidationError } from 'io-ts';
|
|
import type { RouteValidationFunction } from 'kibana/server';
|
|
|
|
type ErrorFactory = (message: string) => Error;
|
|
|
|
const getErrorPath = ([first, ...rest]: Context): string[] => {
|
|
if (typeof first === 'undefined') {
|
|
return [];
|
|
} else if (first.type instanceof IntersectionType) {
|
|
const [, ...next] = rest;
|
|
return getErrorPath(next);
|
|
} else if (first.type instanceof UnionType) {
|
|
const [, ...next] = rest;
|
|
return [first.key, ...getErrorPath(next)];
|
|
}
|
|
|
|
return [first.key, ...getErrorPath(rest)];
|
|
};
|
|
|
|
const getErrorType = ({ context }: ValidationError) =>
|
|
context[context.length - 1]?.type?.name ?? 'unknown';
|
|
|
|
const formatError = (error: ValidationError) =>
|
|
error.message ??
|
|
`in ${getErrorPath(error.context).join('/')}: ${JSON.stringify(
|
|
error.value
|
|
)} does not match expected type ${getErrorType(error)}`;
|
|
|
|
const formatErrors = (errors: ValidationError[]) =>
|
|
`Failed to validate: \n${errors.map((error) => ` ${formatError(error)}`).join('\n')}`;
|
|
|
|
export const createPlainError = (message: string) => new Error(message);
|
|
|
|
export const throwErrors = (createError: ErrorFactory) => (errors: Errors) => {
|
|
throw createError(formatErrors(errors));
|
|
};
|
|
|
|
export const decodeOrThrow = <DecodedValue, EncodedValue, InputValue>(
|
|
runtimeType: Type<DecodedValue, EncodedValue, InputValue>,
|
|
createError: ErrorFactory = createPlainError
|
|
) => (inputValue: InputValue) =>
|
|
pipe(runtimeType.decode(inputValue), fold(throwErrors(createError), identity));
|
|
|
|
type ValdidationResult<Value> = ReturnType<RouteValidationFunction<Value>>;
|
|
|
|
export const createValidationFunction = <DecodedValue, EncodedValue, InputValue>(
|
|
runtimeType: Type<DecodedValue, EncodedValue, InputValue>
|
|
): RouteValidationFunction<DecodedValue> => (inputValue, { badRequest, ok }) =>
|
|
pipe(
|
|
runtimeType.decode(inputValue),
|
|
fold<Errors, DecodedValue, ValdidationResult<DecodedValue>>(
|
|
(errors: Errors) => badRequest(formatErrors(errors)),
|
|
(result: DecodedValue) => ok(result)
|
|
)
|
|
);
|