54 lines
1.7 KiB
TypeScript
54 lines
1.7 KiB
TypeScript
import Ajv from "ajv";
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import addFormats from "ajv-formats";
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import fs from "fs";
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import path from "path";
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const SchemaPath = path.join(__dirname, "..", "..", "..", "api", "assets", "schemas.json");
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const schemas = JSON.parse(fs.readFileSync(SchemaPath, { encoding: "utf8" }));
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export const ajv = new Ajv({
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allErrors: true,
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parseDate: true,
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allowDate: true,
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schemas,
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coerceTypes: true,
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messages: true,
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strict: true,
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strictRequired: true
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});
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addFormats(ajv);
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export function validateSchema<G>(schema: string, data: G): G {
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const valid = ajv.validate(schema, normalizeBody(data));
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if (!valid) throw ajv.errors;
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return data;
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}
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// Normalizer is introduced to workaround https://github.com/ajv-validator/ajv/issues/1287
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// this removes null values as ajv doesn't treat them as undefined
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// normalizeBody allows to handle circular structures without issues
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// taken from https://github.com/serverless/serverless/blob/master/lib/classes/ConfigSchemaHandler/index.js#L30 (MIT license)
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export const normalizeBody = (body: any = {}) => {
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const normalizedObjectsSet = new WeakSet();
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const normalizeObject = (object: any) => {
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if (normalizedObjectsSet.has(object)) return;
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normalizedObjectsSet.add(object);
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if (Array.isArray(object)) {
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for (const [index, value] of object.entries()) {
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if (typeof value === "object") normalizeObject(value);
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}
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} else {
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for (const [key, value] of Object.entries(object)) {
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if (value == null) {
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if (key === "icon" || key === "avatar" || key === "banner" || key === "splash" || key === "discovery_splash") continue;
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delete object[key];
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} else if (typeof value === "object") {
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normalizeObject(value);
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}
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}
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}
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};
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normalizeObject(body);
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return body;
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}; |