Tips for retrieving the Solana unix_timestamp on the front-end using JavaScript

Solana Rust smart contracts have access to

solana_program::clock::Clock::get()?.unix_timestamp

which is seconds from epoch (midnight Jan 1st 1970 GMT) but has a significant drift from any real-world time-zone as a result of Solana's processing delays. Many contracts incorporate this unix timestamp when calculating reward amounts (notably Step Finance and therefore Gem Farm which reuses the logic). How can I recreate this Solana unix timestamp on the front-end using JavaScript without needing any transaction / wallet signature? Calls to a Solana node RPC are acceptable.

javascripttypescriptsolanasolana-web3js

Answer №1

To retrieve the block time, you can utilize the JSON RPC's getBlockTime endpoint. Begin by obtaining the highest slot with the help of getSlot. This can be achieved as follows:

const connection = new Connection('https://api.testnet.solana.com', 'processed');
const slot = await connection.getSlot();
const timestamp = await connection.getBlockTime(slot);

For more detailed information, please refer to this link, as well as this link.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

"Generating a unique, random HEX color using JavaScript from an array

Currently, I am attempting to create a random border color within a div using specific hex codes that have already been determined, but I am encountering some difficulties. Does anyone have any suggestions on how to achieve this? I am still learning JavaS ...

javascriptarraysrandomcolorshex

Rotation Causes Vertices to Deviate from Expected Axis Movement

While moving the vertices of a shape on mouse move works well, applying a rotation to the shape causes the vertices to move along the wrong axis. If you'd like to see the issue in action, check out this codesandbox.io link: https://codesandbox.io/emb ...

javascriptthree.jsreact-three-fiber

Why isn't pagination typically positioned inside of a tbody element rather than before or after it?

I've created a user table that is based on the number parameter. I added a filter that listens to input and performs an AJAX call each time with the filter applied to the name field. However, the pagination is initially displayed ABOVE the entire ta ...

javascriptphpjqueryajaxdom

Leveraging ThemeProvider Parameters with Global Styled-Components

When working with styled-components, how can I access the props of the ThemeProvider in the context of global.js? For instance, in my theme.js file, I have ${props => props.theme.fonts.fontSize} set to a default font size of 16px. const theme = { ...

javascriptreactjsstyled-components

When a TypeScript merged declaration composition is used with an extended target class, it fails to work properly

I have a TypeScript problem where I need to combine a class that has been extended with a few others. While searching for solutions, I came across an article outlining a pattern that I thought could be helpful: https://www.typescriptlang.org/docs/handbook ...

node.jstypescriptmixinscompositiones6-class

Submitting Forms with XMLHttpRequest

I'm trying to utilize XMLHttpRequest in order to retrieve the response from a remote PHP file and showcase it on my webpage. The issue I'm facing is that the form's data isn't being submitted to the remote PHP page. Any suggestions on ...

javascriptphpajax

The function FileReader() is not functioning properly within a Vue computed property

I'm attempting to display a set of image thumbnails by dragging images onto the screen. Here is an example of my data structure: data() { return { files: [Image1, Image2, Image3] } } ...where each Image is in a blob format. Below is my co ...

javascriptvue.jsfilereader

The Google Javascript API Photo getURL function provides a temporary URL that may not always lead to the correct photo_reference

Currently, I am integrating Google Autocomplete with Maps Javascript API into my Angular 5 application. As part of my website functionality, I fetch details about a place, including available photos. The photo URL is obtained through the getURL() method. ...

javascriptangulargoogle-maps-api-3

Is there a way to apply the same technique to a dynamic select option in Angular?

My array is dynamic and has an onChange method in the select option. The issue arises when I add a new array and select the new option, as it causes the first array to reset. Here's a snippet of my array structure: <ng-container formGroupName=&qu ...

angulartypescriptangular-reactive-forms

Generating modal pages on the fly

One thing that's been on my mind is creating modals for my page. Typically, I would include the HTML code for my modal directly in the page like this: <div class="my-modal"> <form action="/home/index"> <input type="text" class="txt- ...

javascriptjqueryhtmlmodal-dialog

Validate the array with AJAX and display an error message

Need assistance validating arrays using FormRequest validation. The error message for the 'name' field can be accessed as data.responseJSON.error.name[0] and displayed to the user. error: function(data, xhr, errmsg, err){ console.log(" ...

javascriptjqueryarraysdjango

The ScriptManager.RegisterStartupScript function does not execute a second time when used inside an UpdatePanel

My aspx page <span> <asp:UpdatePanel ID="upPlayBtn" runat="server" > <ContentTemplate> <asp:Button runat="server" id="btn" Text="Play" OnClick="btnPlay" /> </ContentTemplate> </asp:UpdatePanel> </span> ...

c#javascriptasp.netajaxupdatepanel

Achieve horizontal bar movement by utilizing google.visualization.DataTable in a left-to-right motion

I am exploring the possibility of reversing the direction of a chart(bar) using google.visualization.DataTable. In the current setup, the bar progresses from left to right, but I wish for it to move from right to left instead. Below is what I have attempte ...

javascripthtmlgoogle-api

Performing an AJAX request to the database when a change occurs, prior to submitting the

In my user setup/create form, I am including a field for the users' license/certification number which needs to be validated and returned to a specific DIV Onchange before the form is submitted. I have heard that using AJAX POST is the way to achieve ...

javascriptphpajax

Errors encountered while running `npm install discord.js`

I am currently facing an issue while trying to install discord.js. Unfortunately, I keep encountering the following errors: npm ERR! cb() never called! npm ERR! This is an error with npm itself. Please report this error at: npm ERR! <https://npm.co ...

javascriptnode.jsnpm

What are the steps to generate a multiline chart using d3.js with json data specifically formatted for nvd3?

I attempted to create a multi-line chart using nvd3, but encountered roadblocks when trying to make significant modifications. I am considering building my own chart using d3js directly, but I'm finding it challenging to grasp the concept of 'thi ...

javascriptbindingchartsd3.jsdemo

Obtaining data from a TypeScript decorator

export class UploadGreetingController { constructor( private greetingFacade: GreetingFacade, ) {} @UseInterceptors(FileInterceptor('file', { storage: diskStorage({ destination: (req: any, file, cb) => { if (process.env ...

typescript

What is the average time frame for completing the construction of an electron project?

My project has only a few npm dependencies, but the build process is taking longer than 30 minutes and still counting. I'm not sure if this is normal or if there's an issue causing the delay. I have two specific questions: Is it common for pro ...

javascriptvue.jselectronelectron-builder

Managing numerous inquiries from a single customer within a succession of brief intervals

After creating a web application with a dashboard to showcase different reports and graphs based on user selections, I encountered an issue. Users can interact with the reports using checkboxes and radio buttons. Every time a checkbox or radio button is s ...

javajavascriptajaxjakarta-eerequest

To enable the description p tag only when the search box text matches the search criteria, otherwise keep the p tag disabled

I need to develop a search feature that includes a search box, a heading, and a paragraph description. Initially, the description should be hidden, but when a user enters text that matches the description, the paragraph tag should become visible. An exampl ...

javascriptjquery