# Steem Developer Portal

### RB: Get Posts

This example will output posts depending on which category is provided as the arguments.

Full, runnable src of Get Posts can be downloaded as part of the RB tutorials repository.

### Script

Create a filed called `get_posts_by_category.rb`.

This script will pick a method to call based on the arguments passed. The expected categories are:

- trending
- hot
- active
- created
- votes
- promoted
- children

We will base the name of the API method to execute on the provided argument. Once we know which method to execute, we can build the query options. The defaults for this script is `limit: 10` and `tag: ''`.

For each post we retrieve, we are going to build up a summary to display the interesting fields. In this case, we’re interested in:

- Creation Timestamp
- Title
- Author
- Net Votes
- Number of replies
- If it’s promoted
- Number of words in the body
- Canonical URL

### To Run

First, set up your workstation using the steps provided in Getting Started. Then you can create and execute the script (or clone from this repository):

    git clone git@github.com:steemit/devportal-tutorials-rb.git
    cd devportal-tutorials-rb/tutorials/04_get_posts
    bundle install
    ruby get_posts_by_category.rb trending 1 steem

### Example Output

    2018-05-24 06:38:33 UTC
      Post: New Phone App For Steemit - Wow!
      By: happymoneyman
      Votes: 1087
      Replies: 332
      Promoted: 0.001 SBD
      Words: 190
      https://steemit.com/steemit/@happymoneyman/new-phone-app-for-steemit-wow

#### Error Handling

We’re checking the result for `error` in case the remote node has an issue to raise. Normally, it will be `nil`, but if it’s populated, output `error.message` and exit.