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

remcohaszing

koas-parameters

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Object.defineProperty(exports, "__esModule", { value: true });

const koas_core_1 = require("koas-core");

    const r = definitions.filter(({ required }) => required).map(({ name }) => name);

        properties: definitions.reduce((acc, { name, schema = {} }) => {

function createParameterHandler(operationObject, parameters, parsers, validate) {

    [...(parameters || []), ...(operationObject.parameters || [])].forEach((definition) => {

            queryDefinitions.push(definition);

        else if (definition.in === 'path') {

            pathDefinitions.push(definition);

    const querySchema = createSchema(queryDefinitions);

    const pathSchema = createSchema(pathDefinitions);

    function parse(type = 'string', value) {

        if (Object.prototype.hasOwnProperty.call(parsers, type)) {

            ctx.params = Object.entries(ctx.params).reduce((acc, [key, value]) => {

                if (!Object.prototype.hasOwnProperty.call(pathSchema.properties, key)) {

                const { items, type = 'string' } = pathSchema.properties[key];

                    acc[key] = value.split('/').map(val => parse(items && items.type, val));

                    acc[key] = value.split('/').map((val) => parse(items && items.type, val));

                acc[key] = parse(type, value);

                await validate(ctx.params, pathSchema);

                if (!(err instanceof koas_core_1.SchemaValidationError)) {

                ctx.throw(400, err.message, err.errors);

            ctx.query = Object.entries(ctx.query).reduce((acc, [key, value]) => {

                if (!Object.prototype.hasOwnProperty.call(querySchema.properties)) {

                    const values = Array.isArray(value) ? value : [value];

                    acc[key] = values.map(val => parse(items.type, val));

                    acc[key] = values.map((val) => parse(items.type, val));

                if (Array.isArray(value)) {

                await validate(ctx.query, querySchema);

exports.default = createParameterHandler;

const createParameterHandler_1 = require("./createParameterHandler");

    integer: value => parseInt(value, 10),

    integer: (value) => parseInt(value, 10),

function koasParameters({ parsers = {} } = {}) {

        Object.values(spec.paths).forEach(({ parameters, delete: del, get, head, options, patch, post, put, trace }) => {

            [del, get, head, options, patch, post, put, trace]

                .forEach(operationObject => {

                .forEach((operationObject) => {

                handlers.set(operationObject, createParameterHandler_1.default(operationObject, parameters, combinedParsers, validate));

            const { operationObject } = ctx.openApi;

            if (handlers.has(operationObject)) {

                const handler = handlers.get(operationObject);

  "author": "Remco Haszing <remcohaszing@gmail.com>",

  "homepage": "https://gitlab.com/remcohaszing/koas/tree/master/packages/koas-parameters",

    "url": "https://gitlab.com/remcohaszing/koas/issues"

    "url": "https://gitlab.com/remcohaszing/koas.git",

    "directory": "packages/koas-parameters"

    "prepack": "tsc --project tsconfig.build.json"

		@@ -50,3 +50,3 @@ "use strict";
		if (type === 'array') {
		acc[key] = value.split('/').map(val => parse(items && items.type, val));
		acc[key] = value.split('/').map((val) => parse(items && items.type, val));
		return acc;
		@@ -76,3 +76,3 @@ }
		const values = Array.isArray(value) ? value : [value];
		acc[key] = values.map(val => parse(items.type, val));
		acc[key] = values.map((val) => parse(items.type, val));
		return acc;
		@@ -79,0 +79,0 @@ }

		@@ -14,3 +14,3 @@ "use strict";
		},
		integer: value => parseInt(value, 10),
		integer: (value) => parseInt(value, 10),
		number: parseFloat,
		@@ -29,3 +29,3 @@ string: String,
		.filter(Boolean)
		.forEach(operationObject => {
		.forEach((operationObject) => {
		handlers.set(operationObject, createParameterHandler_1.default(operationObject, parameters, combinedParsers, validate));
		@@ -32,0 +32,0 @@ });

		{
		"name": "koas-parameters",
		"version": "0.2.0",
		"author": "Remco Haszing <remcohaszing@gmail.com>",
		"license": "MIT",
		"version": "0.2.1",
		"keywords": [
		"koa",
		"koas",
		"oai",
		"openapi"
		],
		"homepage": "https://gitlab.com/remcohaszing/koas/tree/master/packages/koas-parameters",
		"bugs": {
		"url": "https://gitlab.com/remcohaszing/koas/issues"
		},
		"repository": {
		@@ -12,12 +19,11 @@ "type": "git",
		},
		"bugs": {
		"url": "https://gitlab.com/remcohaszing/koas/issues"
		},
		"license": "MIT",
		"author": "Remco Haszing <remcohaszing@gmail.com>",
		"main": "lib",
		"files": [
		"lib"
		],
		"scripts": {
		"prepack": "tsc --project tsconfig.build.json"
		},
		"files": [
		"lib"
		],
		"dependencies": {
		@@ -27,4 +33,4 @@ "openapi-types": "^1.3.5"
		"peerDependencies": {
		"koas-core": "^0.2.0"
		"koas-core": "^0.2.1"
		}
		}

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