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  "dependencies": {},
  "description": "Signs and prepares requests using AWS Signature Version 4",
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  "license": "MIT",
  "main": "aws4.js",
  "maintainers": [
    {
      "name": "hichaelmart",
      "email": "michael.hart.au@gmail.com"
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  "name": "aws4",
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  "readme": "aws4\n----\n\n[![Build Status](https://secure.travis-ci.org/mhart/aws4.png?branch=master)](http://travis-ci.org/mhart/aws4)\n\nA small utility to sign vanilla node.js http(s) request options using Amazon's\n[AWS Signature Version 4](http://docs.amazonwebservices.com/general/latest/gr/signature-version-4.html).\n\nCan also be used [in the browser](./browser).\n\nThis signature is supported by nearly all Amazon services, including\n[S3](http://docs.aws.amazon.com/AmazonS3/latest/API/),\n[EC2](http://docs.aws.amazon.com/AWSEC2/latest/APIReference/),\n[DynamoDB](http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/API.html),\n[Kinesis](http://docs.aws.amazon.com/kinesis/latest/APIReference/),\n[Lambda](http://docs.aws.amazon.com/lambda/latest/dg/API_Reference.html),\n[SQS](http://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/),\n[SNS](http://docs.aws.amazon.com/sns/latest/api/),\n[IAM](http://docs.aws.amazon.com/IAM/latest/APIReference/),\n[STS](http://docs.aws.amazon.com/STS/latest/APIReference/),\n[RDS](http://docs.aws.amazon.com/AmazonRDS/latest/APIReference/),\n[CloudWatch](http://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/),\n[CloudWatch Logs](http://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/),\n[CodeDeploy](http://docs.aws.amazon.com/codedeploy/latest/APIReference/),\n[CloudFront](http://docs.aws.amazon.com/AmazonCloudFront/latest/APIReference/),\n[CloudTrail](http://docs.aws.amazon.com/awscloudtrail/latest/APIReference/),\n[ElastiCache](http://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/),\n[EMR](http://docs.aws.amazon.com/ElasticMapReduce/latest/API/),\n[Glacier](http://docs.aws.amazon.com/amazonglacier/latest/dev/amazon-glacier-api.html),\n[CloudSearch](http://docs.aws.amazon.com/cloudsearch/latest/developerguide/APIReq.html),\n[Elastic Load Balancing](http://docs.aws.amazon.com/ElasticLoadBalancing/latest/APIReference/),\n[Elastic Transcoder](http://docs.aws.amazon.com/elastictranscoder/latest/developerguide/api-reference.html),\n[CloudFormation](http://docs.aws.amazon.com/AWSCloudFormation/latest/APIReference/),\n[Elastic Beanstalk](http://docs.aws.amazon.com/elasticbeanstalk/latest/api/),\n[Storage Gateway](http://docs.aws.amazon.com/storagegateway/latest/userguide/AWSStorageGatewayAPI.html),\n[Data Pipeline](http://docs.aws.amazon.com/datapipeline/latest/APIReference/),\n[Direct Connect](http://docs.aws.amazon.com/directconnect/latest/APIReference/),\n[Redshift](http://docs.aws.amazon.com/redshift/latest/APIReference/),\n[OpsWorks](http://docs.aws.amazon.com/opsworks/latest/APIReference/),\n[SES](http://docs.aws.amazon.com/ses/latest/APIReference/),\n[SWF](http://docs.aws.amazon.com/amazonswf/latest/apireference/),\n[AutoScaling](http://docs.aws.amazon.com/AutoScaling/latest/APIReference/),\n[Mobile Analytics](http://docs.aws.amazon.com/mobileanalytics/latest/ug/server-reference.html),\n[Cognito Identity](http://docs.aws.amazon.com/cognitoidentity/latest/APIReference/),\n[Cognito Sync](http://docs.aws.amazon.com/cognitosync/latest/APIReference/),\n[Container Service](http://docs.aws.amazon.com/AmazonECS/latest/APIReference/),\n[AppStream](http://docs.aws.amazon.com/appstream/latest/developerguide/appstream-api-rest.html),\n[Key Management Service](http://docs.aws.amazon.com/kms/latest/APIReference/),\n[Config](http://docs.aws.amazon.com/config/latest/APIReference/),\n[CloudHSM](http://docs.aws.amazon.com/cloudhsm/latest/dg/api-ref.html),\n[Route53](http://docs.aws.amazon.com/Route53/latest/APIReference/requests-rest.html) and\n[Route53 Domains](http://docs.aws.amazon.com/Route53/latest/APIReference/requests-rpc.html).\n\nIndeed, the only AWS services that *don't* support v4 as of 2014-12-30 are\n[Import/Export](http://docs.aws.amazon.com/AWSImportExport/latest/DG/api-reference.html) and\n[SimpleDB](http://docs.aws.amazon.com/AmazonSimpleDB/latest/DeveloperGuide/SDB_API.html)\n(they only support [AWS Signature Version 2](https://github.com/mhart/aws2)).\n\nIt also provides defaults for a number of core AWS headers and\nrequest parameters, making it very easy to query AWS services, or\nbuild out a fully-featured AWS library.\n\nExample\n-------\n\n```javascript\nvar http  = require('http'),\n    https = require('https'),\n    aws4  = require('aws4')\n\n// given an options object you could pass to http.request\nvar opts = {host: 'sqs.us-east-1.amazonaws.com', path: '/?Action=ListQueues'}\n\n// alternatively (as aws4 can infer the host):\nopts = {service: 'sqs', region: 'us-east-1', path: '/?Action=ListQueues'}\n\n// alternatively (as us-east-1 is default):\nopts = {service: 'sqs', path: '/?Action=ListQueues'}\n\naws4.sign(opts) // assumes AWS credentials are available in process.env\n\nconsole.log(opts)\n/*\n{\n  host: 'sqs.us-east-1.amazonaws.com',\n  path: '/?Action=ListQueues',\n  headers: {\n    Host: 'sqs.us-east-1.amazonaws.com',\n    'X-Amz-Date': '20121226T061030Z',\n    Authorization: 'AWS4-HMAC-SHA256 Credential=ABCDEF/20121226/us-east-1/sqs/aws4_request, ...'\n  }\n}\n*/\n\n// we can now use this to query AWS using the standard node.js http API\nhttp.request(opts, function(res) { res.pipe(process.stdout) }).end()\n/*\n<?xml version=\"1.0\"?>\n<ListQueuesResponse xmlns=\"http://queue.amazonaws.com/doc/2012-11-05/\">\n...\n*/\n```\n\nMore options\n------------\n\n```javascript\n// you can also pass AWS credentials in explicitly (otherwise taken from process.env)\naws4.sign(opts, {accessKeyId: '', secretAccessKey: ''})\n\n// can also add the signature to query strings\naws4.sign({service: 's3', path: '/my-bucket?X-Amz-Expires=12345', signQuery: true})\n\n// create a utility function to pipe to stdout (with https this time)\nfunction request(o) { https.request(o, function(res) { res.pipe(process.stdout) }).end(o.body || '') }\n\n// aws4 can infer the HTTP method if a body is passed in\n// method will be POST and Content-Type: 'application/x-www-form-urlencoded; charset=utf-8'\nrequest(aws4.sign({service: 'iam', body: 'Action=ListGroups&Version=2010-05-08'}))\n/*\n<ListGroupsResponse xmlns=\"https://iam.amazonaws.com/doc/2010-05-08/\">\n...\n*/\n\n// can specify any custom option or header as per usual\nrequest(aws4.sign({\n  service: 'dynamodb',\n  region: 'ap-southeast-2',\n  method: 'POST',\n  path: '/',\n  headers: {\n    'Content-Type': 'application/x-amz-json-1.0',\n    'X-Amz-Target': 'DynamoDB_20120810.ListTables'\n  },\n  body: '{}'\n}))\n/*\n{\"TableNames\":[]}\n...\n*/\n\n// works with all other services that support Signature Version 4\n\nrequest(aws4.sign({service: 's3', path: '/', signQuery: true}))\n/*\n<ListAllMyBucketsResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'ec2', path: '/?Action=DescribeRegions&Version=2014-06-15'}))\n/*\n<DescribeRegionsResponse xmlns=\"http://ec2.amazonaws.com/doc/2014-06-15/\">\n...\n*/\n\nrequest(aws4.sign({service: 'sns', path: '/?Action=ListTopics&Version=2010-03-31'}))\n/*\n<ListTopicsResponse xmlns=\"http://sns.amazonaws.com/doc/2010-03-31/\">\n...\n*/\n\nrequest(aws4.sign({service: 'sts', path: '/?Action=GetSessionToken&Version=2011-06-15'}))\n/*\n<GetSessionTokenResponse xmlns=\"https://sts.amazonaws.com/doc/2011-06-15/\">\n...\n*/\n\nrequest(aws4.sign({service: 'cloudsearch', path: '/?Action=ListDomainNames&Version=2013-01-01'}))\n/*\n<ListDomainNamesResponse xmlns=\"http://cloudsearch.amazonaws.com/doc/2013-01-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'ses', path: '/?Action=ListIdentities&Version=2010-12-01'}))\n/*\n<ListIdentitiesResponse xmlns=\"http://ses.amazonaws.com/doc/2010-12-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'autoscaling', path: '/?Action=DescribeAutoScalingInstances&Version=2011-01-01'}))\n/*\n<DescribeAutoScalingInstancesResponse xmlns=\"http://autoscaling.amazonaws.com/doc/2011-01-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'elasticloadbalancing', path: '/?Action=DescribeLoadBalancers&Version=2012-06-01'}))\n/*\n<DescribeLoadBalancersResponse xmlns=\"http://elasticloadbalancing.amazonaws.com/doc/2012-06-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'cloudformation', path: '/?Action=ListStacks&Version=2010-05-15'}))\n/*\n<ListStacksResponse xmlns=\"http://cloudformation.amazonaws.com/doc/2010-05-15/\">\n...\n*/\n\nrequest(aws4.sign({service: 'elasticbeanstalk', path: '/?Action=ListAvailableSolutionStacks&Version=2010-12-01'}))\n/*\n<ListAvailableSolutionStacksResponse xmlns=\"http://elasticbeanstalk.amazonaws.com/docs/2010-12-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'rds', path: '/?Action=DescribeDBInstances&Version=2012-09-17'}))\n/*\n<DescribeDBInstancesResponse xmlns=\"http://rds.amazonaws.com/doc/2012-09-17/\">\n...\n*/\n\nrequest(aws4.sign({service: 'monitoring', path: '/?Action=ListMetrics&Version=2010-08-01'}))\n/*\n<ListMetricsResponse xmlns=\"http://monitoring.amazonaws.com/doc/2010-08-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'redshift', path: '/?Action=DescribeClusters&Version=2012-12-01'}))\n/*\n<DescribeClustersResponse xmlns=\"http://redshift.amazonaws.com/doc/2012-12-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'cloudfront', path: '/2014-05-31/distribution'}))\n/*\n<DistributionList xmlns=\"http://cloudfront.amazonaws.com/doc/2014-05-31/\">\n...\n*/\n\nrequest(aws4.sign({service: 'elasticache', path: '/?Action=DescribeCacheClusters&Version=2014-07-15'}))\n/*\n<DescribeCacheClustersResponse xmlns=\"http://elasticache.amazonaws.com/doc/2014-07-15/\">\n...\n*/\n\nrequest(aws4.sign({service: 'elasticmapreduce', path: '/?Action=DescribeJobFlows&Version=2009-03-31'}))\n/*\n<DescribeJobFlowsResponse xmlns=\"http://elasticmapreduce.amazonaws.com/doc/2009-03-31\">\n...\n*/\n\nrequest(aws4.sign({service: 'route53', path: '/2013-04-01/hostedzone'}))\n/*\n<ListHostedZonesResponse xmlns=\"https://route53.amazonaws.com/doc/2013-04-01/\">\n...\n*/\n\nrequest(aws4.sign({service: 'appstream', path: '/applications'}))\n/*\n{\"_links\":{\"curie\":[{\"href\":\"http://docs.aws.amazon.com/appstream/latest/...\n...\n*/\n\nrequest(aws4.sign({service: 'cognito-sync', path: '/identitypools'}))\n/*\n{\"Count\":0,\"IdentityPoolUsages\":[],\"MaxResults\":16,\"NextToken\":null}\n...\n*/\n\nrequest(aws4.sign({service: 'elastictranscoder', path: '/2012-09-25/pipelines'}))\n/*\n{\"NextPageToken\":null,\"Pipelines\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'lambda', path: '/2014-11-13/functions/'}))\n/*\n{\"Functions\":[],\"NextMarker\":null}\n...\n*/\n\nrequest(aws4.sign({service: 'ecs', path: '/?Action=ListClusters&Version=2014-11-13'}))\n/*\n<ListClustersResponse xmlns=\"http://ecs.amazonaws.com/doc/2014-11-13/\">\n...\n*/\n\nrequest(aws4.sign({service: 'glacier', path: '/-/vaults', headers: {'X-Amz-Glacier-Version': '2012-06-01'}}))\n/*\n{\"Marker\":null,\"VaultList\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'storagegateway', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'StorageGateway_20120630.ListGateways'\n}}))\n/*\n{\"Gateways\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'datapipeline', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'DataPipeline.ListPipelines'\n}}))\n/*\n{\"hasMoreResults\":false,\"pipelineIdList\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'opsworks', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'OpsWorks_20130218.DescribeStacks'\n}}))\n/*\n{\"Stacks\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'route53domains', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'Route53Domains_v20140515.ListDomains'\n}}))\n/*\n{\"Domains\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'kinesis', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'Kinesis_20131202.ListStreams'\n}}))\n/*\n{\"HasMoreStreams\":false,\"StreamNames\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'cloudtrail', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'CloudTrail_20131101.DescribeTrails'\n}}))\n/*\n{\"trailList\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'logs', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'Logs_20140328.DescribeLogGroups'\n}}))\n/*\n{\"logGroups\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'codedeploy', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'CodeDeploy_20141006.ListApplications'\n}}))\n/*\n{\"applications\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'directconnect', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'OvertureService.DescribeConnections'\n}}))\n/*\n{\"connections\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'kms', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'TrentService.ListKeys'\n}}))\n/*\n{\"Keys\":[],\"Truncated\":false}\n...\n*/\n\nrequest(aws4.sign({service: 'config', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'StarlingDoveService.DescribeDeliveryChannels'\n}}))\n/*\n{\"DeliveryChannels\":[]}\n...\n*/\n\nrequest(aws4.sign({service: 'cloudhsm', body: '{}', headers: {\n  'Content-Type': 'application/x-amz-json-1.1',\n  'X-Amz-Target': 'CloudHsmFrontendService.ListAvailableZones'\n}}))\n/*\n{\"AZList\":[\"us-east-1a\",\"us-east-1b\",\"us-east-1c\"]}\n...\n*/\n\nrequest(aws4.sign({\n  service: 'swf',\n  body: '{\"registrationStatus\":\"REGISTERED\"}',\n  headers: {\n    'Content-Type': 'application/x-amz-json-1.0',\n    'X-Amz-Target': 'SimpleWorkflowService.ListDomains'\n  }\n}))\n/*\n{\"domainInfos\":[]}\n...\n*/\n\nrequest(aws4.sign({\n  service: 'cognito-identity',\n  body: '{\"MaxResults\": 1}',\n  headers: {\n    'Content-Type': 'application/x-amz-json-1.1',\n    'X-Amz-Target': 'AWSCognitoIdentityService.ListIdentityPools'\n  }\n}))\n/*\n{\"IdentityPools\":[]}\n...\n*/\n\nrequest(aws4.sign({\n  service: 'mobileanalytics',\n  path: '/2014-06-05/events',\n  body: JSON.stringify({events:[{\n    eventType: 'a',\n    timestamp: new Date().toISOString(),\n    session: {},\n  }]}),\n  headers: {\n    'Content-Type': 'application/json',\n    'X-Amz-Client-Context': JSON.stringify({\n      client: {client_id: 'a', app_title: 'a'},\n      custom: {},\n      env: {platform: 'a'},\n      services: {},\n    }),\n  }\n}))\n/*\n(HTTP 202, empty response)\n*/\n\n// Generate CodeCommit Git access password\nvar signer = new aws4.RequestSigner({\n  service: 'codecommit',\n  host: 'git-codecommit.us-east-1.amazonaws.com',\n  method: 'GIT',\n  path: '/v1/repos/MyAwesomeRepo',\n})\nvar password = signer.getDateTime() + 'Z' + signer.signature()\n```\n\nAPI\n---\n\n### aws4.sign(requestOptions, [credentials])\n\nThis calculates and populates the `Authorization` header of\n`requestOptions`, and any other necessary AWS headers and/or request\noptions. Returns `requestOptions` as a convenience for chaining.\n\n`requestOptions` is an object holding the same options that the node.js\n[http.request](http://nodejs.org/docs/latest/api/http.html#http_http_request_options_callback)\nfunction takes.\n\nThe following properties of `requestOptions` are used in the signing or\npopulated if they don't already exist:\n\n- `hostname` or `host` (will be determined from `service` and `region` if not given)\n- `method` (will use `'GET'` if not given or `'POST'` if there is a `body`)\n- `path` (will use `'/'` if not given)\n- `body` (will use `''` if not given)\n- `service` (will be calculated from `hostname` or `host` if not given)\n- `region` (will be calculated from `hostname` or `host` or use `'us-east-1'` if not given)\n- `headers['Host']` (will use `hostname` or `host` or be calculated if not given)\n- `headers['Content-Type']` (will use `'application/x-www-form-urlencoded; charset=utf-8'`\n  if not given and there is a `body`)\n- `headers['Date']` (used to calculate the signature date if given, otherwise `new Date` is used)\n\nYour AWS credentials (which can be found in your\n[AWS console](https://portal.aws.amazon.com/gp/aws/securityCredentials))\ncan be specified in one of two ways:\n\n- As the second argument, like this:\n\n```javascript\naws4.sign(requestOptions, {\n  secretAccessKey: \"<your-secret-access-key>\",\n  accessKeyId: \"<your-access-key-id>\",\n  sessionToken: \"<your-session-token>\"\n})\n```\n\n- From `process.env`, such as this:\n\n```\nexport AWS_SECRET_ACCESS_KEY=\"<your-secret-access-key>\"\nexport AWS_ACCESS_KEY_ID=\"<your-access-key-id>\"\nexport AWS_SESSION_TOKEN=\"<your-session-token>\"\n```\n\n(will also use `AWS_ACCESS_KEY` and `AWS_SECRET_KEY` if available)\n\nThe `sessionToken` property and `AWS_SESSION_TOKEN` environment variable are optional for signing\nwith [IAM STS temporary credentials](http://docs.aws.amazon.com/STS/latest/UsingSTS/using-temp-creds.html).\n\nInstallation\n------------\n\nWith [npm](http://npmjs.org/) do:\n\n```\nnpm install aws4\n```\n\nCan also be used [in the browser](./browser).\n\nThanks\n------\n\nThanks to [@jed](https://github.com/jed) for his\n[dynamo-client](https://github.com/jed/dynamo-client) lib where I first\ncommitted and subsequently extracted this code.\n\nAlso thanks to the\n[official node.js AWS SDK](https://github.com/aws/aws-sdk-js) for giving\nme a start on implementing the v4 signature.\n\n",
  "readmeFilename": "README.md",
  "repository": {
    "type": "git",
    "url": "git+https://github.com/mhart/aws4.git"
  },
  "scripts": {
    "test": "mocha ./test/fast.js ./test/slow.js -b -t 100s -R list"
  },
  "version": "1.6.0"
}