[IMAGE: https://cdn.steemitimages.com/DQmYjiC4VYNHRm6tRcaNiSr6Hzx3ZUJdMgzSBGv1sgSRyaf/spectrum.jpeg]
EOS Tribe launched a beta version of it's web-socket streaming Spectrum API on Telos Mainnet (https://www.telosfoundation.io/).
Telos Mainnet Spectrum API web-socket endpoint: wss://api.telos.eostribe.io
This version currently supports subscriptions for get_actions, get_transaction and get_blocks streams.
Here is the sample subscription message for get_actions endpoint:
{
"apikey":"test-api-key",
"event":"subscribe",
"type":"get_actions",
"data": {
"account":"eostribeprod",
“actions":[“transfer”,”buyram”]
}
}
Fields description for get_actions:
- event - type of events, there are two variants: “subscribe” and “unsubscribe”. Required [String].
- type - type of endpoint. Required [String].
- data - Contents of this object depends on type argument. Required for get_actions.
- account - name of account. Required [String].
- actions - List of actions name. [Object]. If actions are not specified - all actions will be matched.
Endpoint get_blocks - subscribe on new block events:
Request message format for get_blocks endpoint:
{
"apikey":"test-api-key",
"event":"subscribe",
"type":"get_blocks"
}
Fields description:
- apikey - key for access and accounting, not using on testnet.[String]
- event - type of event, there are two variants “subscribe” and “unsubscribe”. To subscribe necessary using "subscribe" * value - this field is mandatory. [String].
- type - type of endpoint. Required [String].
Below is the sample subscription message for get_transaction endpoint:
{
"apikey":"test-api-key",
"event":"subscribe",
"type":"get_transaction",
"data": {"account":"eosio"}
}
Fields description for get_transaction:
- apikey - key for access and accounting, not using on testnet.[String]
- event - type of event, there are two variants “subscribe” and “unsubscribe”. To subscribe necessary using "subscribe" value . This field is mandatory. [String].
- type - type of endpoint. Required [String].
- data - Contents of this object depends on type argument. Required for get_transaction.
- account - name of account. Required [String].
Sample JS web-socket client to subscribe for events:
Spectrum Web Sockets
let socket = new WebSocket("wss://api.telos.eostribe.io/streaming");
# pick one of declarations:
# 1. get_actions:
var messageBody = {
"apikey":"test-api-key",
"event":"subscribe",
"type":"get_actions",
"data": {"account":"eosio"}
};
#2. get_blocks:
var messageBody = {
"apikey":"test-api-key",
"event":"subscribe",
"type":"get_blocks"
};
#3. get_transaction:
var messageBody ={
"apikey":"test-api-key",
"event":"subscribe",
"type":"get_transaction",
"data": {"account":"eosio"}
};
socket.onopen = function(e) {
console.log("[open] Connection established");
console.log("Sending to server: "+JSON.stringify(messageBody));
socket.send(JSON.stringify(messageBody));
};
socket.onmessage = function(event) {
html_log("[message] Data received from server: "+event.data);
};
socket.onclose = function(event) {
if (event.wasClean) {
html_log("[close] Connection closed cleanly, code=${event.code} reason=${event.reason}");
} else {
html_log("[close] Connection died");
}
};
socket.onerror = function(error) {
html_log("[error] ${error.message}");
};
function html_log(data) {
var divLog = document.getElementById("log");
divLog.innerHTML += "
"+data+"";
}
Spectrum Web Sockets Test: Get Actions