farmap 0.10.1

A library for working with Farcaster label datasets
Documentation 
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use super::importer_utils::parse_json_from_response;
use super::ImporterError;
use log::trace;
use reqwest::Response;
use serde_json::Value;

pub async fn parse_follow_response(response: Response) -> Result<Vec<u64>, ImporterError> {
    let json = parse_json_from_response(response).await?;
    trace!("successfully parsed into raw json {json:?}");
    parse_raw_json(json)
}

fn parse_raw_json(json: Value) -> Result<Vec<u64>, ImporterError> {
    parse_raw_json_with_opt(&json).ok_or(ImporterError::BadApiResponse(json.to_string()))
}

fn parse_raw_json_with_opt(json: &Value) -> Option<Vec<u64>> {
    let array = json.pointer("/result/users")?.as_array()?;
    array
        .iter()
        .map(|object| {
            object
                .as_object()
                .and_then(|object| object.get("fid"))
                .and_then(|fid_str| fid_str.as_str())
                .and_then(|fid| fid.parse::<u64>().ok())
        })
        .collect::<Option<Vec<u64>>>()
}

#[cfg(test)]
pub mod test {
    use super::*;

    #[test]
    fn parse_example_response() {
        let example = r#"{
  "result": {
    "users": [
      {
        "fid": "111",
        "followingCount": 123,
        "followerCount": 123,
        "pfp": {
          "url": "test.com",
          "verified": true
        },
        "bio": {
          "text": "a test",
          "mentions": [
            "<string>"
          ]
        },
        "external": true,
        "custodyAddress": "....",
        "username": "....",
        "displayName": "....",
        "registeredAt": "2023-11-07T05:31:56Z"
      }
    ]
  },
  "next": "<string>",
  "source": "v2"
}"#;
        let json: Value = serde_json::from_str(example).unwrap();
        assert_eq!(*parse_raw_json(json).unwrap().first().unwrap(), 111);
    }
}