Created
August 11, 2023 02:45
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Elixir using Finch to stream Stellar Horizon transaction
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Finch.start_link(name: MyFinch) | |
url = "https://horizon.stellar.org/accounts/GAFNBDOZBFUKHB4ZY5ANCQ25PM33YLTMWQKW25J7LXNZM3YSHRH3BELY/transactions?limit=200&cursor=119456526699307008&include_failed=true" | |
Finch.build(:get, url, [{"Accept", "text/event-stream"}]) | |
|> Finch.stream(MyFinch, nil, fn | |
{:status, status}, _acc -> | |
IO.inspect(status) | |
{:headers, headers}, _acc -> | |
IO.inspect(headers) | |
{:data, data}, _acc -> | |
[chunk | _]= String.split(data, "\n\n") | |
# ["retry: 1000", "event: open", "data: \"hello\""] | |
# [id, data] | |
# ["retry: 10", "event: close", "data: \"byebye\""] | |
case String.split(chunk, "\n", trim: true) do | |
["retry: " <> timeout, "event: " <> event, _data] -> | |
IO.inspect("event: #{event}") | |
["id: " <> id, "data: " <> data] -> | |
content = Jason.decode!(data) | |
%{"paging_token" => cursor} = content | |
IO.inspect("id: #{id} - cursor: #{cursor}") | |
end | |
end, receive_timeout: :infinity) |
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