koas-parameters/lib/index.js

Koas parameters attempts to coerce path and query parameters to the type specified in their respective JSON schema.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parameters = void 0;
const utils_1 = require("./utils");
const defaultParsers = {
    boolean(value) {
        switch (value) {
            case 'false':
                return false;
            case 'true':
                return true;
            default:
                return value;
        }
    },
    integer(value) {
        const integer = Number(value);
        if (Number.isInteger(integer)) {
            return integer;
        }
        return value;
    },
    number(value) {
        const number = Number(value);
        if (Number.isFinite(number)) {
            return number;
        }
        return value;
    },
    string: String,
};
/**
 * Create a Koas plugin for parsing path and query parameters.
 *
 * @param options - The options for parsing the parameters.
 * @returns A Koas plugin for parsing path and query parameters.
 */
function parameters({ parsers = {} } = {}) {
    const combinedParsers = {
        ...defaultParsers,
        ...parsers,
    };
    return ({ document, resolveRef, validate }) => {
        const handlers = new Map();
        for (const { delete: del, get, head, options, parameters: parametersObjects, patch, post, put, trace, } of Object.values(document.paths)) {
            for (const operationObject of [del, get, head, options, patch, post, put, trace]) {
                if (operationObject) {
                    handlers.set(operationObject, (0, utils_1.createParameterHandler)(operationObject, parametersObjects, combinedParsers, validate, resolveRef));
                }
            }
        }
        return (ctx, next) => {
            const { operationObject } = ctx.openApi;
            if (handlers.has(operationObject)) {
                const handler = handlers.get(operationObject);
                handler(ctx);
            }
            return next();
        };
    };
}
exports.parameters = parameters;