Steem-JS Tutorials #2 - Getting Post Content

What Will I Learn?

• Get Post Content by User, permlink at by Trending

Requirements

• Node.JS, Here
• Steem Package - you can look at my first tutorial to install the package

Difficulty

• Basic

Tutorial Contents

In this tutorial, I will learn you how to get post content by user / permlink / trending.

Curriculum

• Steem-JS Ttutorials #1

Get Post Content

#####Get posts by user

first create 2 variables, the first username, the second limit
(you need the variables just for comfort, you can to just put the info instead on the function)

limit - will limit the amount of posts we should get.

username - from which blogger the post come from.

const username = "lonelywolf", lim = 1;

steem.api.getDiscussionsByBlog({tag: username, limit: lim}, function(err, result){

console.log(err, result);

});

if all done correctly we should get this result -

result (compacted):
null (1) […]​0: Object { id: 42430471, author: "lonelywolf", permlink: "adding-jackpot-game-and-game-history-global-and-private", … }​length: 1​__proto__: Array [] localhost:14:85

(I used the browser version because I can't give a clear view of the console, you can use this both In the browser or on server-side [console])

from here you can do anything you want with the post, for example -

steem.api.getDiscussionsByBlog({tag: "lonelywolf", limit: 1}, function(err, result) {
  console.log("Title: " + result[0].title + ", Pending Payout: " + result[0].pending_payout_value + ", author: " + "lonelywolf" + ".");
});

result : Title: Adding JackPot game & game history, Pending Payout: 9.616 SBD, author: lonelywolf.

picture -

this is just cool example of what you can do.

Get post by permlink

to get a post by permlink first we need the actual permlink -

permlink is the permanent link of the post, for example, my is adding-jackpot-game-and-game-history-global-and-private, this is what comes after https://steemit.com/utopian-io/@lonelywolf/

create 2 variables, one for the permlink second username for the user who opened the post

const permlink = "adding-jackpot-game-and-game-history-global-and-private", username = "lonelywolf";

steem.api.getContent(username, permlink, function(err, result) {

console.log(err, result);

});

like the first one, this is the same, giving the post content just here it's by the permlink and author.

result:

null Object { id: 42248788, author: "lonelywolf", permlink: "some-shots-from-the-last-week-c1be138c4d8b1", category: "photography", parent_author: "", parent_permlink: "photography", title: "Some pictures from the last week!", body: "Hey steemians, in the past week I took some pictures, hope it's good :)\n\n\n\n \n\n\n\n \n\n---\n\n<center></center>", json_metadata: "{\"image\":[\"https://img.esteem.ws/\",\"\",\"\",\"\",\"\"],\"tags\":[\"photography\",\"esteem\",\"picture\",\"nature\",\"animal\"],\"app\":\"steemit/0.1\",\"format\":\"markdown\",\"community\":\"esteem\",\"users\":[\"lonelywolf\"]}", last_update: "2018-04-05T19:27:45", … } localhost:16:65

(this is another post example because my last one was pretty long so I needed to change the post permlink).

(pictures removed because it replaced with a full picture)

as the first one, you can do anything you want with the information.

Get Posts by Trending

to get a post by trending we need the tag we want to get the posts from and limit the count of posts, create this 2 variables tag - limit to make this process comfortable.

const Tag = "photography", Limit: 2;

and now get the posts

steem.api.getDiscussionsByTrending({tag: Tag, limit: Limit}, function(err, result){

console.log(result);

});

and if all correctly you should get this -

result (compacted):

(2) […]​0: Object { id: 42363974, author: "slowwalker", permlink: "bunhwangsa-pagoda-of-shilla-dynasty-unique-style-of-pagoda", … }​1: Object { id: 42517728, author: "velimir", permlink: "original-art-photography-series-by-velimir-254-another-world-another-time", … }​length: 2​__proto__: Array [] localhost:15:5

and like the other ones you can do anything you want from here, for example, upvote the posts or follow the authors etc.

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Posted on Utopian.io - Rewarding Open Source Contributors

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