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Middleware validator using zod schema

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This commit is contained in:
Justin xzHome
2025-07-08 23:21:19 +09:00
parent 4f35ed1abd
commit b35d8f76df
4 changed files with 22 additions and 10 deletions
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7
api/package-lock.json generated
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@@ -12,6 +12,7 @@
"drizzle-orm": "^0.44.2", "drizzle-orm": "^0.44.2",
"drizzle-zod": "^0.8.2", "drizzle-zod": "^0.8.2",
"express": "^5.1.0", "express": "^5.1.0",
"lodash": "^4.17.21",
"mysql2": "^3.14.1", "mysql2": "^3.14.1",
"zod": "^3.25.74" "zod": "^3.25.74"
}, },
@@ -1697,6 +1698,12 @@
"integrity": "sha512-Ks/IoX00TtClbGQr4TWXemAnktAQvYB7HzcCxDGqEZU6oCmb2INHuOoKxbtR+HFkmYWBKv/dOZtGRiAjDhj92g==", "integrity": "sha512-Ks/IoX00TtClbGQr4TWXemAnktAQvYB7HzcCxDGqEZU6oCmb2INHuOoKxbtR+HFkmYWBKv/dOZtGRiAjDhj92g==",
"license": "MIT" "license": "MIT"
}, },
"node_modules/lodash": {
"version": "4.17.21",
"resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
"integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
"license": "MIT"
},
"node_modules/long": { "node_modules/long": {
"version": "5.3.2", "version": "5.3.2",
"resolved": "https://registry.npmjs.org/long/-/long-5.3.2.tgz", "resolved": "https://registry.npmjs.org/long/-/long-5.3.2.tgz",

1
api/package.json
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@@ -18,6 +18,7 @@
"drizzle-orm": "^0.44.2", "drizzle-orm": "^0.44.2",
"drizzle-zod": "^0.8.2", "drizzle-zod": "^0.8.2",
"express": "^5.1.0", "express": "^5.1.0",
"lodash": "^4.17.21",
"mysql2": "^3.14.1", "mysql2": "^3.14.1",
"zod": "^3.25.74" "zod": "^3.25.74"
}, },

9
api/src/middlewares/validationMiddleware.ts
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@@ -1,19 +1,22 @@
import { Request, Response, NextFunction } from 'express'; import { Request, Response, NextFunction } from 'express';
import { z, ZodError } from 'zod'; import { z, ZodError, ZodTypeAny } from 'zod';
import { ZodObject } from 'zod/v4';
export function validateData(schema: z.ZodObject<any, any>) { export function validateData(schema: ZodObject) {
return (req: Request, res: Response, next: NextFunction) => { return (req: Request, res: Response, next: NextFunction) => {
try { try {
schema.parse(req.body); schema.parse(req.body);
next(); next();
} catch (error) { } catch (error) {
// console.log(error);
if (error instanceof ZodError) { if (error instanceof ZodError) {
const errorMessages = error.errors.map((issue: any) => ({ const errorMessages = error.errors.map((issue: any) => ({
message: `${issue.path.join('.')} is ${issue.message}`, message: `${issue.path.join('.')} is ${issue.message}`,
})); }));
res.status(400).json({ error: 'Invalid data', details: errorMessages }); res.status(400).json({ error: 'Invalid data', details: errorMessages });
} else { } else {
res.status(500).json({ error: 'Internal Server Error' }); const er = error as ZodError
res.status(400).json({ error: er.flatten()});
} }
} }
}; };

15
api/src/routes/products/index.ts
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@@ -6,17 +6,18 @@ import { listProducts,
deleteProduct deleteProduct
} from "./productsController"; } from "./productsController";
import { validateData } from "../../middlewares/validationMiddleware"; import { validateData } from "../../middlewares/validationMiddleware";
import { z } from 'zod'; import { z, ZodObject, ZodTypeAny } from 'zod/v4';
import { createInsertSchema , createSelectSchema, createUpdateSchema } from 'drizzle-zod'; import { createInsertSchema , createSelectSchema, createUpdateSchema } from 'drizzle-zod';
import { productsTable } from "../../db/productsSchema"; import { productsTable } from "../../db/productsSchema";
const createProductSchema = z.object({ // const createProductSchema = z.object({
name: z.string(), // name: z.string(),
price: z.number({ message: "not a number you idiot."}), // price: z.number({ message: "not a number you idiot."}),
}); // });
// const createProductSchema = createInsertSchema(productsTable);
// type ProductType = z.infer<typeof createProductSchema>; const createProductSchema = createInsertSchema(productsTable).omit({id: true});
type ProductType = z.infer<typeof createProductSchema>;
const router = Router(); const router = Router();