I have setup streams for transactions, payments, operations, and effects with the method from stellar api guide:

this.server = new StellarSdk.Server('https://horizon.stellar.org');

this.stream = this.server.transactions()
  onmessage: function (message) {

I noticed that a lot of the operations stream show manage offers detailing trades that are happening. I'm looking to get a stream of complete trades occurring on the network.

Using this.stream = this.server.trades().stream gives me this error:

Using Firefox can’t establish a connection to the server at https://horizon.stellar.org/trades.

According to the Stellar Laboratory, this should work unless the stream functionality for trades isn't implemented yet.

  • 1
    You forgot to add the error details. horizon.stellar.org/trades endpoint works for me. Maybe it's a rate-limiting issue.
    – Orbit Lens
    Commented Apr 17, 2018 at 6:36
  • Thats the only error details it provides. Testing horizon.stellar.org/trades in browser and using the stellar laboratory to setup trade queries works for normal request to get past trades. However, the method the sdk uses to setup a stream does not work on the trades endpoint, at least not in the same way. stellar.github.io/js-stellar-sdk/Server.html#trades details this normal query behavior. Looks like this theory is correct as payments, operations, and transactions have stream methods on their builders, but not the trades builder.
    – Alex F
    Commented Apr 17, 2018 at 23:59

1 Answer 1


The following code works with JS StellarSDK 0.8.0:

    onmessage: function (message) {

It does not throw errors (as TradesCallBuilder is inherited from CallBuilder that features .stream() method), but it never receives any messages either.

I assume that you are right, and streaming mode is not implemented in /trades Horizon endpoint.

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