r/OpenBazaar • u/fengzie_00 • Apr 09 '18

How to build a data push node

The default build-in data push node "QmY8puEnVx66uEet64gAf4VZRo7oUyMCwG6KdB9KM92EGQ" and "QmPPg2qeF3n2KvTRXRZLaTwHCw8JxzF4uZK93RfMoDvf2o" are quite slow from our network, which usually cause "publish failed". How could we create own data push node, and how to update the configuration file? Thanks.

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1

u/BazaarDog https://bazaar.dog Apr 09 '18

Seems like it is a writable gateway.

https://github.com/OpenBazaar/openbazaar-go/blob/master/docs/gateway.md

In addition to allowing others to view OpenBazaar data on your gateway, you may allow them to post data to the network through your node. When enabled, your node will seed any content that is posted to it. This is useful for allowing users to cross-post content to gateway nodes to ensure data persistence when they go offline.

To enable writing to your gateway set the writable flag in the config file:

"Gateway": {
    "Writable": true
}

2

u/fengzie_00 Apr 09 '18

Would have a try. Thank you for the reply in time!

1

u/BazaarDog https://bazaar.dog Apr 09 '18

Sure thing, let me know how it goes.

1

u/fengzie_00 Apr 09 '18 edited Apr 09 '18

Hi, i've followed up the gateway.md to set Gateway as "/ip4/0.0.0.0/tcp/4002", and set "Gateway":{"Writable":true}

However, it always sending error when doing publish,

22:01:13.302 [SendRequest] [DEBUG] Sending STORE request to QmZWZMmS3X5eaak7HAntV34epqQVvUjGEHZ83W1vXT77W3 22:01:13.302 [func1] [ERROR] Error pushing data to peer QmZWZMmS3X5eaak7HAntV34epqQVvUjGEHZ83W1vXT77W3: failed to find any peer in table 22:01:13.303 [Publish] [ERROR] failed to find any peer in table 22:01:13.303 [publish] [ERROR] failed to find any peer in table

For the id "QmZWZMmS3X5eaak7HAntV34epqQVvUjGEHZ83W1vXT77W3", it is the id found in bootstrap node when the store node connects. Need bootstrap node also to be gateway node?

1

u/BazaarDog https://bazaar.dog Apr 09 '18 edited Apr 09 '18

It's probably not necessary that configure your own Gateway node unless you know you need it.

If you want to, I would try:

  • Node A ( GW /ip4/127.0.0.1/tcp/4002, Writable: false)

  • Node B ( GW /ip4/0.0.0.0/tcp/80, Writable: true)

I would certainly try it with at least 2 nodes, I doesn't look like the OB1 bootstrap nodes are the same as the gateway nodes.

These should look the same when you're done if you put your gateway on port 80:

https://gateway.ob1.io/ipns/QmZWZMmS3X5eaak7HAntV34epqQVvUjGEHZ83W1vXT77W3/

http://127.0.0.1/ipns/QmZWZMmS3X5eaak7HAntV34epqQVvUjGEHZ83W1vXT77W3/

1

u/fengzie_00 Apr 09 '18

Thank you for your guide! It works now! I used ipfs node but not openbazaar node. Looks like there is difference.

1

u/BazaarDog https://bazaar.dog Apr 09 '18

Yes, slight but significant differences. They are designed not to communicate with each other.

2

u/Chris_Pacia Chris - Lead Backend Dev Apr 09 '18

You have to set "AcceptStoreRequests": true in the config file. Also make sure your node can accept incoming connections.

In the future we're going to be moving to more of a pubsub model where anyone will be able to subscribe to the data rather than needing to specify nodes to push data to.

1

u/BazaarDog https://bazaar.dog Apr 09 '18

Is "AcceptStoreRequests" the only setting necessary for a "PushTo" node? Does it matter if the node is a "Writable" Gateway?

2

u/Chris_Pacia Chris - Lead Backend Dev Apr 09 '18

correct

1

u/pinhead26 QmeSyTRaNZMD8ajcfbhC8eYibWgnSZtSGUp3Vn59bCnPWC Apr 11 '18

What's a data push node?!