Migrated read APIs to Nitro

server/utils/api-validation.ts

@@ -0,0 +1,52 @@
+import mongoose from "mongoose"
+import { setResponseStatus, type H3Event } from "h3"
+
+export type ParseResult<T> = { value: T } | { error: string }
+
+export function parseMongoId(value: unknown): ParseResult<string> {
+	if (typeof value !== "string" || !mongoose.isValidObjectId(value)) {
+		return { error: "Invalid id" }
+	}
+	return { value }
+}
+
+export function parseMongoIds(value: unknown): ParseResult<string[]> {
+	if (typeof value !== "string" && !Array.isArray(value)) {
+		return { error: "Required" }
+	}
+
+	const values = Array.isArray(value) ? value : [value]
+	const ids: string[] = []
+	for (const item of values) {
+		const parsed = parseMongoId(item)
+		if ("error" in parsed) return parsed
+		ids.push(parsed.value)
+	}
+	return { value: ids }
+}
+
+export function parseNumber(
+	value: unknown,
+	defaultValue: number,
+	minimum: number,
+): ParseResult<number> {
+	if (value === undefined) return { value: defaultValue }
+
+	const parsed = Number(value)
+	if (Number.isNaN(parsed)) return { error: "Expected number, received nan" }
+	if (parsed < minimum) {
+		return { error: `Number must be greater than or equal to ${minimum}` }
+	}
+	return { value: parsed }
+}
+
+export function parseQueryString(value: unknown): ParseResult<string> {
+	if (value === undefined) return { error: "Required" }
+	if (typeof value !== "string") return { error: "Expected string, received array" }
+	return { value }
+}
+
+export function validationResponse(event: H3Event, message: string) {
+	setResponseStatus(event, 400)
+	return { message }
+}