Crate rs621

Wrapper crate for the e621.net API.

Usage

First, create a Client. You have to provide a descriptive User-Agent for your project. The official API encourages you to include your E621 username so that you may be contacted if your project causes problems.

let client = Client::new("MyProject/1.0 (by username on e621)")?;

Now it's ready to go! For example you can get post #8595 like this:

let post = client.get_post(8595)?;

assert_eq!(post.id, 8595);

Or you can make a search like on the website, using tags:

for post in client.list(&["fluffy", "rating:s"][..]).take(20) {
    println!("{}", post?);
}

Notes from the official API:

User Agents

A non-empty User-Agent header is required for all requests. Please pick a descriptive User-Agent for your project. You are encouraged to include your e621 username so that you may be contacted if your project causes problems. DO NOT impersonate a browser user agent, as this will get you blocked. An example user-agent would be

MyProject/1.0 (by username on e621)

Due to frequent abuse, default user agents for programming languages and libraries are usually blocked. Please make sure that you are defining a user agent that is in line with our policy.

[...]

Thus, rs621 doesn't have a default user agent and you are required to specify your own.

Rate Limiting

E621/E926 have a hard rate limit of two requests per second. This is a hard upper limit and if you are hitting it, you are already going way too fast. Hitting the rate limit will result in a 503 HTTP response code. You should make a best effort not to make more than one request per second over a sustained period.

rs621 will enforce this limit with a short sleeping time after every API request being made. This short sleep time only happens in the thread the request is being made and requests made in other threads will NOT be affected. Thus, if you are using rs621 across multiple threads, you are responsible for making sure that you aren't exceeding the upper rate limit. Waiting for functions performing requests in other threads to return should be enough.

Modules

client	Client related structures.
error	Error management.
post	Post management.