@edgeguideab/expect/dist/index.js

Check for user input in a consistent way and generate error messages for missings

"use strict";
var index_1 = require("./types/index");
var validation_1 = require("./util/validation");
function expect(schema, input) {
    if (!isObject(schema)) {
        throw new Error("Invalid validation schema");
    }
    var parsedValues = Object.create(null);
    var errors = Object.create(null);
    var valid = true;
    Object.keys(schema)
        .filter(function (key) { return !(0, validation_1.isUnsafe)(key); })
        .filter(function (key) { return schema[key] !== undefined; })
        .forEach(function (parameter) {
        if (!isObject(input)) {
            valid = false;
            errors[parameter] = "Invalid input";
            return;
        }
        var options = schema[parameter];
        var value = input[parameter];
        var validation = (0, index_1.validate)({
            input: input,
            value: value,
            schema: schema,
            options: options,
            parameter: parameter,
            visitedParams: [],
            type: typeof options === "string" ? options : options.type,
        });
        if (!validation.valid) {
            valid = false;
            if (validation.error)
                errors[parameter] = validation.error;
            return;
        }
        if (validation.parsed !== undefined) {
            parsedValues[parameter] = validation.parsed;
        }
    });
    return {
        isValid: valid,
        errors: function () { return errors; },
        getParsed: function () { return parsedValues; },
        wereMet: function () { return valid; },
    };
}
function isObject(val) {
    return val !== null && typeof val === "object";
}
module.exports = expect;