In the last couple of days we made some changes to the backend:

Web Proxy:
- Replaced NGINX with Traefik, this allows for automatic service detection on Docker Swarm. Which allows us to easily deploy our own services behind a web proxy with minimal configuration.

BitShares-UI:
- Updated to latest version 180912
- Added our API servers and referral to BitShares-UI
- Created Docker Image
- Deployed Docker Container on Docker Swarm
- Setup a staging so we can test new releases, before pushing it to production

Whats the short term plan:

Migrate the BitShares WebSockets to a new VPS (will still use NGINX, more on that in another blog post)
Visit BitFest in the Netherlands, Amsterdam!!

The Golang module for BitShares:

One of the great things in Golang is a Struct, this ‘thing’ allows for easy marshaling and unmarshaling of JSON data, to/from a format that Golang understand.

One of the down sides is dynamic json, where a request can have multiple outputs of different types, for example: the Graphene Database API call: get_objects, accepts multiple values of different types, and will also return values of multiple values of different types

Requesting object 1.3.0 (BTS asset) and 1.6.128 (our witness)

{

"id": 1,

"method": "call",

"params": [0, "get_objects", [["1.3.0", "1.6.128"]]] 

}

The Response

{

"id": 1,

"jsonrpc": "2.0",   

"result": [

{"id": "1.3.0",

"symbol": "BTS",

"precision": 5,

"issuer": "1.2.3",

"options": {

  "max_supply": "360057050210207",

  "market_fee_percent": 0,

  "max_market_fee": "1000000000000000",

  "issuer_permissions": 0,

  "flags": 0,

  "core_exchange_rate": {

    "base": {

      "amount": 1,

      "asset_id": "1.3.0"},

    "quote": {

      "amount": 1,

      "asset_id": "1.3.0"}

    },

    "whitelist_authorities": [],

    "blacklist_authorities": [],

    "whitelist_markets": [],

    "blacklist_markets": [],

    "description": "",

    "extensions": []

    },

  "dynamic_asset_data_id": "2.3.0"

},





{

"id": "1.6.128",

"witness_account": "1.2.876613",

"last_aslot": 0,

"signing_key": "BTS7qKGdA9AJWz9a7mu63AgCBoWQ7dRkzF9SsUh2iZ5YXYzk2pxGk",

"vote_id": "1:378",

"total_votes": "8784142496916",

"url": "https://bts.deepcrypto.trade/",

"total_missed": 0,

"last_confirmed_block_num": 0

}

]

}

As you can see both JSON documents in the result array, have no similarity at all with the exception of that it is a JSON document with an id field . This makes it a bit harder, but still possible to (un)marshal JSON (to/)into something that Golang can work with.

I’m will spend some time on this to figure out on how to make an elegant solution.

-Mouse