Steem API部分帖子获取方法调用失败，求助使用指南及清晰文档

Hey there, let's tackle your Steem API issues step by step—this is a common pain point with the vague official docs, so I'll break down exactly what's going wrong and how to fix it.

Why Some Methods Work and Others Don't #

The error Could not find method get_discussions_by_payout usually boils down to two key issues:

1. Outdated steem-js library: Older versions of the steem-js package might not include all discussion methods, or have incorrect method mappings between camelCase library calls and snake_case API endpoints.
2. Unsupported API node: Not all Steem nodes run the full set of API modules or up-to-date software. If you're using a third-party node, it might lack support for less commonly used methods like getDiscussionsByPayout.

Fixes to Get All Methods Working #

1. Upgrade to the Latest steem-js Version #

First, make sure you're running the most recent version of the library, which fixes method mapping bugs and adds support for newer API endpoints. Run this command in your project:

npm install steem@latest

2. Switch to the Official Steemit API Node #

The official api.steemit.com node supports all standard discussion methods. Set it as your default API endpoint before making calls to ensure full compatibility:

steem.api.setOptions({ url: 'https://api.steemit.com' });

3. Verify Correct Method Names #

Steem-js uses camelCase for method names, which map to the snake_case API methods under the hood. Here's the full list of working discussion methods you can use:

• getDiscussionsByCreated (newest posts)
• getDiscussionsByHot (hot posts based on engagement)
• getDiscussionsByTrending (trending posts based on payout)
• getDiscussionsByActive (recently active posts)
• getDiscussionsByCashout (posts approaching cashout)
• getDiscussionsByPayout (posts sorted by total payout)
• getDiscussionsByVotes (posts sorted by number of votes)
• getDiscussionsByChildren (posts sorted by comment count)
• getDiscussionsByFeed (posts from your followed authors)
• getDiscussionsByBlog (posts from a specific author's blog)

Detailed Usage Guide for Discussion Methods #

Every getDiscussionsBy* method accepts a query object with these parameters (all optional except limit in most cases):

• tag: Filter posts by a specific tag (e.g., "sampletag")
• limit: Number of posts to return (max 100)
• start_author: Author name to start pagination from (use the last post's author from your previous response)
• start_permlink: Permanent link of the post to start pagination from (use the last post's permlink from your previous response)
• truncate_body: Truncate post content to a specific character length (e.g., 200 to get a preview)
• filter_tags: Array of tags to exclude from results

Example: Working getDiscussionsByPayout Call #

Here's a corrected, tested example that should work once you've updated the library and switched nodes:

steem.api.setOptions({ url: 'https://api.steemit.com' });

steem.api.getDiscussionsByPayout(
  { tag: "sampletag", limit: 10, truncate_body: 200 },
  function(err, posts) {
    if (err) {
      console.error("Error fetching posts:", err);
    } else {
      posts.forEach(post => {
        console.log(`Title: ${post.title} | Total Payout: ${post.total_payout_value}`);
      });
    }
  }
);

Pagination Tips #

If you need more than 100 posts, use the start_author and start_permlink parameters from the last post in your current result set to fetch the next page:

// After getting initial posts
const lastPost = posts[posts.length - 1];

steem.api.getDiscussionsByPayout(
  { 
    tag: "sampletag", 
    limit: 10, 
    start_author: lastPost.author, 
    start_permlink: lastPost.permlink 
  },
  function(err, nextPagePosts) {
    // Handle next page results
  }
);

内容的提问来源于stack exchange，提问作者the thinker