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Cloudformation resource to call any http API




Call any HTTP API using CloudFormation

An aws-cdk construct for calling HTTP API during CloudFormation stack update.


The Http resource provides 3 callbacks: onCreate, onUpdate and onDelete.

The following example will issue a POST request when a Some API resource creates:

import * as cdk from '@aws-cdk/core';
import { Http } from "cloudformation-http-resource";

export class ExamplesStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    const simpleOk = new Http(this, 'Some API', {
      onCreate: {
        method: 'POST',
        url: '',
        headers: {
          'content-type': 'application/json'
        body: {
          test: 123,
          nested: [{
            name: 'Piotr'

Response data

You can access response data easily and e.g. put it into stack outputs like so:

new CfnOutput(this, 'Response body test field', {
  description: "Response body test field",
  value: simpleOk.getResponseField("body.test")

new CfnOutput(this, 'Response header', {
  description: "Location of the resource",
  value: simpleOk.getResponseField("headers.location")

new CfnOutput(this, 'Response status code', {
  description: "Status code",
  value: simpleOk.getResponseField("statusCode")


You can call APIs that require authentication tokens using SecretsManager:

import { Http, HttpCall } from "cloudformation-http-resource";

const secret: secretmanager.ISecret = getOrCreateSecret()

const apiCall: HttpCall = {
  url: '',
  method: 'PUT',
  headers: {
    Authorization: `Bearer ${secret.secretValue}`
  body: {
    secret: secret.secretValue,

const includeSecret = new Http(this, 'SecretHttpCall', {
  onCreate: apiCall,
  onUpdate: apiCall