31 lines
918 B
TypeScript
31 lines
918 B
TypeScript
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import { plainToInstance } from 'class-transformer';
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import { validate, ValidationError } from 'class-validator';
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import { RequestHandler } from 'express';
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export const validationModelMiddleware = (
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type: any,
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value = 'body',
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skipMissingProperties = false,
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whitelist = true,
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forbidNonWhitelisted = true,
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): RequestHandler => {
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return (req, res, next) => {
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if(type === null && type == undefined){
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next()
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return
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}
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const model = plainToInstance(type, req[value]);
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validate(model, { skipMissingProperties, whitelist, forbidNonWhitelisted }).then((errors: ValidationError[]) => {
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console.log(errors)
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if (errors.length > 0) {
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const message = errors.map((error: ValidationError) => Object.values(error.constraints)).join(', ');
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return res.status(400).json(message)
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} else {
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req['model'] = model
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next();
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}
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});
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};
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};
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