@fuzzy-ai/web
v1.0.5
Published
Simple web client used by fuzzy.ai
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fuzzy.ai-web
A Web client library that does about what you'd expect it to. It supports persistent connections.
License
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Example
var web = require('fuzzy.ai-web');
myClient = new web.WebClient({timeout: 5000});
myClient.get("http://example.com/resource", function(err, response, body) {
if (err instanceof web.ClientError) {
// Fix it.
} else if (err instanceof web.ServerError) {
// retry request?
} else if (err) {
// Timeouts, lookup, other things like that
console.error(err);
} else {
// Succcess!
console.log(body);
}
});
WebClient
This is the main class for running a Web client. It has the following methods.
constructor(props)
: Constructor takes named initialization properties as an argument. Currently the only property istimeout
, which is how long to leave persistent connections open before closing them. If it'sInfinity
, never close it. If it's 0, close immediately (no persistent connections). If props is an integer instead of an object, use that as the timeout.timeout
is zero by default.request(method, url, headers, body, callback)
. Make an HTTP request with methodmethod
.url
andheaders
are as expected.body
is the body of the request, as a string, if any.callback
is a function which receiveserr
,response
, andbody
.response
is an http.IncomingMessage; body is the body of the response.err
is an error; either a ClientError, ServerError, or maybe an error at a lower level of the stack (network, e.g.).There are convenience methods for HTTP methods, also.
get(url, headers, callback)
. Convenience for 'GET'.post(url, headers, body, callback)
. Convenience for 'POST'.head(url, headers, callback)
. Convenience for 'HEAD'.put(url, headers, body, callback)
. Convenience for 'PUT'.patch(url, headers, body, callback)
. Conenience for 'PATCH'.delete(url, headers, callback)
. Convenience for 'DELETE'.stop()
Shut down the client, and disconnect any existing persistent connections. You should do this if you have non-zero timeout and your program is terminating, since otherwise the connections will be held open for the timeout period.
ClientError
This is a class for when an HTTP response comes back with a 4xx status code. It has the following properties:
- url
- verb
- statusCode
- headers
- body
ServerError
This is a class for when an HTTP response comes back with a 5xx status code. It has the following properties:
- url
- verb
- statusCode
- headers
- body