CODEWITHSUNDEEP
node.jsstreamredis
mark volrap
mark volrap

Reputation: 53

convert stream object into string

i need to store a stream object as a string, i tried to use JSON.stringify(stream) but i got the following error:

TypeError: Converting circular structure to JSON

so i have tried to use "circular-json" package like this:

var o = CircularJSON.parse(CircularJSON.stringify(stream))

but when accessing the stream write function i get an error - o.write is not a function

how can i store stream objects as string, and parse them later to the original object?

Upvotes: 4

Views: 7908

Answers (2)

Jonathan Ong
Jonathan Ong

Reputation: 20355

handling streams can be complicated. for stream -> string, i recommend using this library: https://www.npmjs.com/package/raw-body

Upvotes: 0

Explosion Pills
Explosion Pills

Reputation: 191829

Streams don't contain the raw data as part of the object. Instead they emit the data as part of 'data' events that you can listen to. Subscribe to the .on event for the stream and when it emits data you can append it to a string and get all the data.

On the 'end' event you have finished reading all the data so you can do something with the data in the 'end' event callback.

let data = '';
stream.on('data', chunk => data += chunk);
stream.on('end', doSomethingWithData);

Upvotes: 4

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