How to find the closest node to connect to mainnet in my dapp?

Question

In our dapp, we would like to offer the user to choose from a list of different mainnet nodes, so that latency is low.

Ideally, from the list of BPs the user has voted for.

How to retrieve a list of mainnet nodes (in the web app)?

Did you have a solution for this issue?
– blockehainer
Aug 14, 2019 at 10:09 — blockehainer, Aug 14, 2019 at 10:09

Kabir · Accepted Answer · 2018-06-28 18:37:54Z

2

I know you want a web API for this but the simple thing to do would be to get cleos installed and call it from an AJAX endpoint to run:

cleos -u http://api.eosnewyork.io  system  listproducers

This returns the list of BPs with URLs and then you can just call any of these BP websites with /bp.json to retrieve the API endpoints for that BP.

PS: The cleos call itself require a BP (I used EOSNewYork as an example).

answered Jun 28, 2018 at 18:37

Kabir

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If you want to know which one is "closest", you can try pinging them to see which of the BPs respond the fastest.
– John Haager
Jun 28, 2018 at 21:27
Yes, I want a web API and a sever-less app.
– friedger
Jul 4, 2018 at 9:32

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mixdev · Accepted Answer · 2019-09-23 13:39:29Z

0

Another way is to use an API that is automatically geo routed based on where you are requesting from (like EOSInfra)

curl -si https://public.eosinfra.io/v1/chain/get_info

The API currently has 40ms latency from my location. Which is a reasonably good latency.

answered Sep 23, 2019 at 13:39

mixdev

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2 Answers 2