HTTP | Meteor API Docs

** http package has been deprecated. Please use the fetch package instead. **

HTTP provides an HTTP request API on the client and server. To use these functions, add the HTTP package to your project by running in your terminal:

meteor add http

Anywhere

HTTP.call(method, url, [options], [asyncCallback])

import { HTTP } from 'meteor/deprecated'

(deprecated/http/httpcall_client.js, line 24)

Perform an outbound HTTP request.

Arguments

method String: The HTTP method to use, such as "GET", "POST", or "HEAD".
url String: The URL to retrieve.
asyncCallback Function: Optional callback. If passed, the method runs asynchronously, instead of synchronously, and calls asyncCallback. On the client, this callback is required.

Options

content String: String to use as the HTTP request body.
data Object: JSON-able object to stringify and use as the HTTP request body. Overwrites content.
query String: Query string to go in the URL. Overwrites any query string in url.
params Object: Dictionary of request parameters to be encoded and placed in the URL (for GETs) or request body (for POSTs). If content or data is specified, params will always be placed in the URL.
auth String: HTTP basic authentication string of the form "username:password"
headers Object: Dictionary of strings, headers to add to the HTTP request.
timeout Number: Maximum time in milliseconds to wait for the request before failing. There is no timeout by default.
followRedirects Boolean: If true, transparently follow HTTP redirects. Cannot be set to false on the client. Default true.
beforeSend Function: On the client, this will be called before the request is sent to allow for more direct manipulation of the underlying XMLHttpRequest object, which will be passed as the first argument. If the callback returns false, the request will be not be sent.

This function initiates an HTTP request to a remote server.

On the server, this function can be run either synchronously or asynchronously. If the callback is omitted, it runs synchronously and the results are returned once the request completes successfully. If the request was not successful, an error is thrown. This is useful when making server-to-server HTTP API calls from within Meteor methods, as the method can succeed or fail based on the results of the synchronous HTTP call. In this case, consider using this.unblock() to allow other methods on the same connection to run in the mean time.

On the client, this function must be used asynchronously by passing a callback. Note that some browsers first send an OPTIONS request before sending your request (in order to determine CORS headers).

Both HTTP and HTTPS protocols are supported. The url argument must be an absolute URL including protocol and host name on the server, but may be relative to the current host on the client. The query option replaces the query string of url. Parameters specified in params that are put in the URL are appended to any query string. For example, with a url of '/path?query' and params of { foo: 'bar' }, the final URL will be '/path?query&foo=bar'.

The params are put in the URL or the request body, depending on the type of request. In the case of request with no bodies, like GET and HEAD, the parameters will always go in the URL. For a POST or other type of request, the parameters will be encoded into the body with a standard x-www-form-urlencoded content type, unless the content or data option is used to specify a body, in which case the parameters will be appended to the URL instead.

When run in asynchronous mode, the callback receives two arguments, error and result. The error argument will contain an Error if the request fails in any way, including a network error, time-out, or an HTTP status code in the 400 or 500 range. In case of a 4xx/5xx HTTP status code, the response property on error matches the contents of the result object. When run in synchronous mode, either result is returned from the function, or error is thrown.

Contents of the result object:

statusCode Number: Numeric HTTP result status code, or null on error.
content String: The body of the HTTP response as a string.
data Object or null: If the response headers indicate JSON content, this contains the body of the document parsed as a JSON object.
headers Object: A dictionary of HTTP headers from the response.

Example server method:

Meteor.methods({
  checkTwitter(userId) {
    check(userId, String);
    this.unblock();

    try {
      const result = HTTP.call('GET', 'http://api.twitter.com/xyz', {
        params: { user: userId }
      });

      return true;
    } catch (e) {
      // Got a network error, timeout, or HTTP error in the 400 or 500 range.
      return false;
    }
  }
});

Example asynchronous HTTP call:

HTTP.call('POST', 'http://api.twitter.com/xyz', {
  data: { some: 'json', stuff: 1 }
}, (error, result) => {
  if (!error) {
    Session.set('twizzled', true);
  }
});

Anywhere

HTTP.get(url, [callOptions], [asyncCallback])

import { HTTP } from 'meteor/deprecated'

(deprecated/http/httpcall_common.js, line 54)

Send an HTTP GET request. Equivalent to calling HTTP.call with "GET" as the first argument.

Arguments

url String: The URL to which the request should be sent.
callOptions Object: Options passed on to HTTP.call.
asyncCallback Function: Callback that is called when the request is completed. Required on the client.

Anywhere

HTTP.post(url, [callOptions], [asyncCallback])

import { HTTP } from 'meteor/deprecated'

(deprecated/http/httpcall_common.js, line 66)

Send an HTTP POST request. Equivalent to calling HTTP.call with "POST" as the first argument.

Arguments

url String: The URL to which the request should be sent.
callOptions Object: Options passed on to HTTP.call.
asyncCallback Function: Callback that is called when the request is completed. Required on the client.

Anywhere

HTTP.put(url, [callOptions], [asyncCallback])

import { HTTP } from 'meteor/deprecated'

(deprecated/http/httpcall_common.js, line 78)

Send an HTTP PUT request. Equivalent to calling HTTP.call with "PUT" as the first argument.

Arguments

url String: The URL to which the request should be sent.
callOptions Object: Options passed on to HTTP.call.
asyncCallback Function: Callback that is called when the request is completed. Required on the client.

Anywhere

HTTP.del(url, [callOptions], [asyncCallback])

import { HTTP } from 'meteor/deprecated'

(deprecated/http/httpcall_common.js, line 90)

Send an HTTP DELETE request. Equivalent to calling HTTP.call with "DELETE" as the first argument. (Named del to avoid conflict with the Javascript keyword delete)

Arguments

url String: The URL to which the request should be sent.
callOptions Object: Options passed on to HTTP.call.
asyncCallback Function: Callback that is called when the request is completed. Required on the client.

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