Get total supply

[pacu]

CoinMarketCap is requesting a method to query the total supply of ZEC in the form of a raw value.

Example: https://avascan.info/api/v1/supply?q=totalSupply

Result:

455452110.20572644

I modified the blockchain-info method

 def blockchain_info_api(conn, _params) do
    {:ok, info} = Cachex.get(:app_cache, "metrics")
    {:ok, %{"build" => build}} = Cachex.get(:app_cache, "info")
    info = Map.put(info, "build", build)
    json(conn, info)
  end

so to create a total-supply that returns the raw value of chainValue

 def total_supply(conn, _params) do
    {:ok, info} = Cachex.get(:app_cache, "metrics")
    {:ok, %{"build" => build}} = Cachex.get(:app_cache, "info")
    info = Map.put(info, "build", build)
    # Extract the chainValue from the chainSupply map
    chain_value = get_in(info, ["chainSupply", "chainValue"])
    send_resp(conn, 200, to_string(chain_value))
  end

[matiasurbieta]

The change looks good to me.
I performed the following steps:

• Checkout the code.
• Run mix deps.getand then mix phx.server
• Run the following cURL sentence:

curl 'http://localhost:4000/api/v1/total-supply' \ -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7' \ -H 'Accept-Language: en-US,en;q=0.9' \ -H 'Cache-Control: no-cache' \ -H 'Connection: keep-alive' \ -H 'Cookie: _zcash_explorer_key=SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYdm1NN2UxeDVqNGpEeWVDcHFxUlB4RW01.E7qa3r_BPw8ZPvQhZQZmItpi-sFJrEs0kc7XBTT4YDg' \ -H 'Pragma: no-cache' \ -H 'Sec-Fetch-Dest: document' \ -H 'Sec-Fetch-Mode: navigate' \ -H 'Sec-Fetch-Site: none' \ -H 'Sec-Fetch-User: ?1' \ -H 'Upgrade-Insecure-Requests: 1' \ -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36' \ -H 'sec-ch-ua: "Google Chrome";v="131", "Chromium";v="131", "Not_A Brand";v="24"' \ -H 'sec-ch-ua-mobile: ?0' \ -H 'sec-ch-ua-platform: "macOS"'

I got the following output as plain test:
16698415.75335043%

Questions:

• is there any chance that paramenters could be passed to the service?

[pacu]

Good catch! I've asked that to the people requesting this and they are just needing this value