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require(esm) backported to Node.js 20, easing the transition to ESM-only packages and reducing complexity for developers as Node 18 nears end-of-life.
stream-length
Advanced tools
For a given Buffer or Stream, this module will attempt to determine the total length of the stream contents. It currently supports Buffers, `fs` streams, `http` responses, and `request` objects, and allows for specifying custom stream types.
Attempts to determine the total content length of a Stream or Buffer.
Supports both Promises and nodebacks.
WTFPL or CC0, whichever you prefer.
My income consists entirely of donations for my projects. If this module is useful to you, consider making a donation!
You can donate using Bitcoin, PayPal, Gratipay, Flattr, cash-in-mail, SEPA transfers, and pretty much anything else.
Pull requests welcome. Please make sure your modifications are in line with the overall code style, and ensure that you're editing the .coffee
files, not the .js
files.
Build tool of choice is gulp
; simply run gulp
while developing, and it will watch for changes.
Be aware that by making a pull request, you agree to release your modifications under the licenses stated above.
Using Promises:
var streamLength = require("stream-length");
Promise.try(function(){
return streamLength(fs.createReadStream("README.md"));
})
.then(function(result){
console.log("The length of README.md is " + result);
})
.catch(function(err){
console.log("Could not determine length. Error: " + err.toString());
});
Using nodebacks:
var streamLength = require("stream-length");
streamLength(fs.createReadStream("README.md"), {}, function(err, result){
if(err)
{
console.log("Could not determine length. Error: " + err.toString());
}
else
{
console.log("The length of README.md is " + result);
}
});
Custom lengthRetrievers:
Promise.try(function(){
return streamLength(fs.createReadStream("README.md"), [
function(stream, callback){
doSomethingWith(stream, function(err, len){
callback(err ? err : len);
})
}
]);
})
.then(function(result){
console.log("The length of README.md is " + result);
})
.catch(function(err){
console.log("Could not determine length. Error: " + err.toString());
});
Determines the length of stream
, which can be a supported type of Stream or a Buffer. Optionally you can specify options
:
stream-length
s list of supported Stream types. Each retriever function is called with a signature of (stream, callback)
where stream
is the stream in question, and callback
can be called with the result. If an Error occurs, simply pass the Error to the callback instead of the value.If you define a callback
, it will be treated as a nodeback and called when the function completes. If you don't, the function will return a Promise that resolves when the function completes.
FAQs
For a given Buffer or Stream, this module will attempt to determine the total length of the stream contents. It currently supports Buffers, `fs` streams, `http` responses, and `request` objects, and allows for specifying custom stream types.
The npm package stream-length receives a total of 824,994 weekly downloads. As such, stream-length popularity was classified as popular.
We found that stream-length 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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