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native-node-dns-cache
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Readme
If you perform a query on an A or AAAA type and it doesn't exist, the cache will attempt to lookup a CNAME and then resolve that.
The constructor takes an optional object with the following properties:
store
-- implements the cache store model (optional, default MemoryStore)Methods:
lookup(question, cb)
-- for a given question check the cache store for
existencestore(packet)
-- iterates over the resource records in a packet and sends
them to the cache storepurge()
-- clears the cache store of all entriesMemoryStore(opts)
-- An in memory store based on a js object
Methods:
get(domain, key, cb)
domain
is the holder under which keys will be applied,
key
is the subdomain that is being queried for.
If you get('example.com', 'www', cb)
you are really asking for www.example.com
.cb(err, results)
-- results is an object of types and array of answers{ 1: [{address: '127.0.0.1', ttl: 300, type: 1, class: 1}] }
set(domain, key, data, cb)
domain
is the parent under which this key is stored.
key
is the subdomain we are storing, data
is an object of types with an array of answers.set('example.com', 'www', {1: [{class:1, type:1, ttl:300, address:'127.0.0.1'}]}, cb)
cb(err, data)
-- cb merely returns the data that was passed.delete(domain[, key[, type]], cb)
-- delete all from a domain, a domain and key,
or a domain a key and a type.Is a mechanism that given a store performs the common resolution pattern.
Given example.com
previous added to a store:
www.example.com CNAME foo.bar.example.com.
*.example.com A 127.0.0.1
A Lookup(store, 'example.com', {name:'www.example.com', type:1}, cb)
will resolve www
to the CNAME and then search for foo.bar.example.com
which
will return no results, and then search for *.bar.example.com
which will also
return no results, and ultimately searches for *.example.com
which will return
the desired record.
Callback will be called with (err, results)
where results is an array suitable
for use in Packet.answer
FAQs
DNS Caching Library
The npm package native-node-dns-cache receives a total of 75 weekly downloads. As such, native-node-dns-cache popularity was classified as not popular.
We found that native-node-dns-cache demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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Streamline your login process and enhance security by enabling Single Sign-On (SSO) on the Socket platform, now available for all customers on the Enterprise plan, supporting 20+ identity providers.
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