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  "author": {
    "name": "Isaac Z. Schlueter",
    "email": "i@izs.me",
    "url": "http://blog.izs.me/"
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    "url": "https://github.com/npm/npm-registry-client/issues"
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    "graceful-fs": "^4.1.6",
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  "description": "Client for the npm registry",
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  "readme": "# npm-registry-client\n\nThe code that npm uses to talk to the registry.\n\nIt handles all the caching and HTTP calls.\n\n## Usage\n\n```javascript\nvar RegClient = require('npm-registry-client')\nvar client = new RegClient(config)\nvar uri = \"https://registry.npmjs.org/npm\"\nvar params = {timeout: 1000}\n\nclient.get(uri, params, function (error, data, raw, res) {\n  // error is an error if there was a problem.\n  // data is the parsed data object\n  // raw is the json string\n  // res is the response from couch\n})\n```\n\n# Registry URLs\n\nThe registry calls take either a full URL pointing to a resource in the\nregistry, or a base URL for the registry as a whole (including the registry\npath – but be sure to terminate the path with `/`). `http` and `https` URLs are\nthe only ones supported.\n\n## Using the client\n\nEvery call to the client follows the same pattern:\n\n* `uri` {String} The *fully-qualified* URI of the registry API method being\n  invoked.\n* `params` {Object} Per-request parameters.\n* `callback` {Function} Callback to be invoked when the call is complete.\n\n### Credentials\n\nMany requests to the registry can be authenticated, and require credentials\nfor authorization. These credentials always look the same:\n\n* `username` {String}\n* `password` {String}\n* `email` {String}\n* `alwaysAuth` {Boolean} Whether calls to the target registry are always\n  authed.\n\n**or**\n\n* `token` {String}\n* `alwaysAuth` {Boolean} Whether calls to the target registry are always\n  authed.\n\n## Requests\n\nAs of `npm-registry-client@8`, all requests are made with an `Accept` header\nof `application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*`.\n\nThis enables filtered document responses to requests for package metadata.\nYou know that you got a filtered response if the mime type is set to\n`application/vnd.npm.install-v1+json` and not `application/json`.\n\nThis filtering substantially reduces the over all data size.  For example\nfor `https://registry.npmjs.org/npm`, the compressed metadata goes from\n410kB to 21kB.\n\n## API\n\n### client.access(uri, params, cb)\n\n* `uri` {String} Registry URL for the package's access API endpoint.\n  Looks like `/-/package/<package name>/access`.\n* `params` {Object} Object containing per-request properties.\n  * `access` {String} New access level for the package. Can be either\n    `public` or `restricted`. Registry will raise an error if trying\n    to change the access level of an unscoped package.\n  * `auth` {Credentials}\n\nSet the access level for scoped packages. For now, there are only two\naccess levels: \"public\" and \"restricted\".\n\n### client.adduser(uri, params, cb)\n\n* `uri` {String} Base registry URL.\n* `params` {Object} Object containing per-request properties.\n  * `auth` {Credentials}\n* `cb` {Function}\n  * `error` {Error | null}\n  * `data` {Object} the parsed data object\n  * `raw` {String} the json\n  * `res` {Response Object} response from couch\n\nAdd a user account to the registry, or verify the credentials.\n\n### client.deprecate(uri, params, cb)\n\n* `uri` {String} Full registry URI for the deprecated package.\n* `params` {Object} Object containing per-request properties.\n  * `version` {String} Semver version range.\n  * `message` {String} The message to use as a deprecation warning.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nDeprecate a version of a package in the registry.\n\n### client.distTags.fetch(uri, params, cb)\n\n* `uri` {String} Base URL for the registry.\n* `params` {Object} Object containing per-request properties.\n  * `package` {String} Name of the package.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nFetch all of the `dist-tags` for the named package.\n\n### client.distTags.add(uri, params, cb)\n\n* `uri` {String} Base URL for the registry.\n* `params` {Object} Object containing per-request properties.\n  * `package` {String} Name of the package.\n  * `distTag` {String} Name of the new `dist-tag`.\n  * `version` {String} Exact version to be mapped to the `dist-tag`.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nAdd (or replace) a single dist-tag onto the named package.\n\n### client.distTags.set(uri, params, cb)\n\n* `uri` {String} Base URL for the registry.\n* `params` {Object} Object containing per-request properties.\n  * `package` {String} Name of the package.\n  * `distTags` {Object} Object containing a map from tag names to package\n     versions.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nSet all of the `dist-tags` for the named package at once, creating any\n`dist-tags` that do not already exist. Any `dist-tags` not included in the\n`distTags` map will be removed.\n\n### client.distTags.update(uri, params, cb)\n\n* `uri` {String} Base URL for the registry.\n* `params` {Object} Object containing per-request properties.\n  * `package` {String} Name of the package.\n  * `distTags` {Object} Object containing a map from tag names to package\n     versions.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nUpdate the values of multiple `dist-tags`, creating any `dist-tags` that do\nnot already exist. Any pre-existing `dist-tags` not included in the `distTags`\nmap will be left alone.\n\n### client.distTags.rm(uri, params, cb)\n\n* `uri` {String} Base URL for the registry.\n* `params` {Object} Object containing per-request properties.\n  * `package` {String} Name of the package.\n  * `distTag` {String} Name of the new `dist-tag`.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nRemove a single `dist-tag` from the named package.\n\n### client.get(uri, params, cb)\n\n* `uri` {String} The complete registry URI to fetch\n* `params` {Object} Object containing per-request properties.\n  * `timeout` {Number} Duration before the request times out. Optional\n    (default: never).\n  * `follow` {Boolean} Follow 302/301 responses. Optional (default: true).\n  * `staleOk` {Boolean} If there's cached data available, then return that to\n    the callback quickly, and update the cache the background. Optional\n    (default: false).\n  * `auth` {Credentials} Optional.\n  * `fullMetadata` {Boolean} If true, don't attempt to fetch filtered\n    (\"corgi\") registry metadata.  (default: false)\n* `cb` {Function}\n\nFetches data from the registry via a GET request, saving it in the cache folder\nwith the ETag or the \"Last Modified\" timestamp.\n\n### client.publish(uri, params, cb)\n\n* `uri` {String} The registry URI for the package to publish.\n* `params` {Object} Object containing per-request properties.\n  * `metadata` {Object} Package metadata.\n  * `access` {String} Access for the package. Can be `public` or `restricted` (no default).\n  * `body` {Stream} Stream of the package body / tarball.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nPublish a package to the registry.\n\nNote that this does not create the tarball from a folder.\n\n### client.sendAnonymousCLIMetrics(uri, params, cb)\n\n- `uri` {String} Base URL for the registry.\n- `params` {Object} Object containing per-request properties.\n  - `metricId` {String} A uuid unique to this dataset.\n  - `metrics` {Object} The metrics to share with the registry, with the following properties:\n    - `from` {Date} When the first data in this report was collected.\n    - `to` {Date} When the last data in this report was collected. Usually right now.\n    - `successfulInstalls` {Number} The number of successful installs in this period.\n    - `failedInstalls` {Number} The number of installs that ended in error in this period.\n- `cb` {Function}\n\nPUT a metrics object to the `/-/npm/anon-metrics/v1/` endpoint on the registry.\n\n### client.star(uri, params, cb)\n\n* `uri` {String} The complete registry URI for the package to star.\n* `params` {Object} Object containing per-request properties.\n  * `starred` {Boolean} True to star the package, false to unstar it. Optional\n    (default: false).\n  * `auth` {Credentials}\n* `cb` {Function}\n\nStar or unstar a package.\n\nNote that the user does not have to be the package owner to star or unstar a\npackage, though other writes do require that the user be the package owner.\n\n### client.stars(uri, params, cb)\n\n* `uri` {String} The base URL for the registry.\n* `params` {Object} Object containing per-request properties.\n  * `username` {String} Name of user to fetch starred packages for. Optional\n    (default: user in `auth`).\n  * `auth` {Credentials} Optional (required if `username` is omitted).\n* `cb` {Function}\n\nView your own or another user's starred packages.\n\n### client.tag(uri, params, cb)\n\n* `uri` {String} The complete registry URI to tag\n* `params` {Object} Object containing per-request properties.\n  * `version` {String} Version to tag.\n  * `tag` {String} Tag name to apply.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nMark a version in the `dist-tags` hash, so that `pkg@tag` will fetch the\nspecified version.\n\n### client.unpublish(uri, params, cb)\n\n* `uri` {String} The complete registry URI of the package to unpublish.\n* `params` {Object} Object containing per-request properties.\n  * `version` {String} version to unpublish. Optional – omit to unpublish all\n    versions.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nRemove a version of a package (or all versions) from the registry.  When the\nlast version us unpublished, the entire document is removed from the database.\n\n### client.whoami(uri, params, cb)\n\n* `uri` {String} The base registry for the URI.\n* `params` {Object} Object containing per-request properties.\n  * `auth` {Credentials}\n* `cb` {Function}\n\nSimple call to see who the registry thinks you are. Especially useful with\ntoken-based auth.\n\n\n## PLUMBING\n\nThe below are primarily intended for use by the rest of the API, or by the npm\ncaching logic directly.\n\n### client.request(uri, params, cb)\n\n* `uri` {String} URI pointing to the resource to request.\n* `params` {Object} Object containing per-request properties.\n  * `method` {String} HTTP method. Optional (default: \"GET\").\n  * `body` {Stream | Buffer | String | Object} The request body.  Objects\n    that are not Buffers or Streams are encoded as JSON. Optional – body\n    only used for write operations.\n  * `etag` {String} The cached ETag. Optional.\n  * `lastModified` {String} The cached Last-Modified timestamp. Optional.\n  * `follow` {Boolean} Follow 302/301 responses. Optional (default: true).\n  * `streaming` {Boolean} Stream the request body as it comes, handling error\n    responses in a non-streaming way.\n  * `auth` {Credentials} Optional.\n* `cb` {Function}\n  * `error` {Error | null}\n  * `data` {Object} the parsed data object\n  * `raw` {String} the json\n  * `res` {Response Object} response from couch\n\nMake a generic request to the registry. All the other methods are wrappers\naround `client.request`.\n\n### client.fetch(uri, params, cb)\n\n* `uri` {String} The complete registry URI to upload to\n* `params` {Object} Object containing per-request properties.\n  * `headers` {Stream} HTTP headers to be included with the request. Optional.\n  * `auth` {Credentials} Optional.\n* `cb` {Function}\n\nFetch a package from a URL, with auth set appropriately if included. Used to\ncache remote tarballs as well as request package tarballs from the registry.\n\n# Configuration\n\nThe client uses its own configuration, which is just passed in as a simple\nnested object. The following are the supported values (with their defaults, if\nany):\n\n* `proxy.http` {URL} The URL to proxy HTTP requests through.\n* `proxy.https` {URL} The URL to proxy HTTPS requests through. Defaults to be\n  the same as `proxy.http` if unset.\n* `proxy.localAddress` {IP} The local address to use on multi-homed systems.\n* `ssl.ca` {String} Certificate signing authority certificates to trust.\n* `ssl.certificate` {String} Client certificate (PEM encoded). Enable access\n  to servers that require client certificates.\n* `ssl.key` {String} Private key (PEM encoded) for client certificate.\n* `ssl.strict` {Boolean} Whether or not to be strict with SSL certificates.\n  Default = `true`\n* `retry.count` {Number} Number of times to retry on GET failures. Default = 2.\n* `retry.factor` {Number} `factor` setting for `node-retry`. Default = 10.\n* `retry.minTimeout` {Number} `minTimeout` setting for `node-retry`.\n  Default = 10000 (10 seconds)\n* `retry.maxTimeout` {Number} `maxTimeout` setting for `node-retry`.\n  Default = 60000 (60 seconds)\n* `userAgent` {String} User agent header to send. Default =\n  `\"node/{process.version}\"`\n* `log` {Object} The logger to use.  Defaults to `require(\"npmlog\")` if\n  that works, otherwise logs are disabled.\n* `defaultTag` {String} The default tag to use when publishing new packages.\n  Default = `\"latest\"`\n* `couchToken` {Object} A token for use with\n  [couch-login](https://npmjs.org/package/couch-login).\n* `sessionToken` {String} A random identifier for this set of client requests.\n  Default = 8 random hexadecimal bytes.\n* `maxSockets` {Number} The maximum number of connections that will be open per\n  origin (unique combination of protocol:host:port). Passed to the\n  [httpAgent](https://nodejs.org/api/http.html#http_agent_maxsockets).\n  Default = 50\n* `isFromCI` {Boolean} Identify to severs if this request is coming from CI (for statistics purposes).\n  Default = detected from environment– primarily this is done by looking for\n  the CI environment variable to be set to `true`.  Also accepted are the\n  existence of the `JENKINS_URL`, `bamboo.buildKey` and `TDDIUM` environment\n  variables.\n* `scope` {String} The scope of the project this command is being run for. This is the\n  top level npm module in which a command was run.\n  Default = none\n",
  "readmeFilename": "README.md",
  "repository": {
    "url": "git+https://github.com/npm/npm-registry-client.git"
  },
  "scripts": {
    "test": "standard && tap test/*.js"
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}
