Data validation

You can validate headers, payload, URL params, or URL query by add validatationSchema on handler options
Set params to true if you want to validate URL params or URL query
Payload, params, and query validation will be executed if you call getPayload(), getParams(), or getQuery()

Headers validation will always executed if headers validation schema is set

import type { HandlerOptions, Request, ValidationSchema } from "https://raw.fastro.dev/master/mod.ts";

const validationSchema: ValidationSchema = {
body: { type: "object", properties: { addres: { type: "string" } } },
  headers: {
    type: "object",
    properties: {
      "token": { type: "string" },
    },
    required: ["token"],
  },
  querystring: {
    type: "object",
    properties: {
      name: { type: "string" },
      address: { type: "string" },
    },
    required: ["name"],
  },
  params: {
    type: "array",
    items: [{ type: "string" }, { type: "string" }, { type: "string" }],
  },
};
export const options: HandlerOptions = {
  params: true,
  prefix: "api",
  methods: ["GET", "POST", "PUT", "DELETE"],
  validationSchema,
};

export const handler = async (request: Request) => {
  const x = request.getQuery();
  const y = request.getParams();
  const z = await request.getPayload();
  const data = { x, y, z };
  request.send(data);
};

Data validation

What’s next: