Aaron Manning
80 lines
2.6 KiB
Rust
Executable File
80 lines
2.6 KiB
Rust
Executable File
macro_rules! implement_pagination_v1 {
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($t:ty) => {
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impl $t {
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async fn follow_link(
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client: &Client,
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url: &str,
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) -> Result<Self, error::Error> {
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let res = reqwest::Client::new()
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.get(url)
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.header("Authorization", client.auth_header())
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.send()
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.await
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.map_err(error::Error::Request)?;
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match res.status() {
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reqwest::StatusCode::OK => {
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let body =
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res.text()
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.await
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.map_err(error::Error::BodyRead)?;
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let response: Self =
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serde_json::from_str(&body)
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.map_err(error::Error::Json)?;
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Ok(response)
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},
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_ => {
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let body =
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res.text()
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.await
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.map_err(error::Error::BodyRead)?;
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let error: error::ErrorResponse =
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serde_json::from_str(&body)
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.map_err(error::Error::Json)?;
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Err(error::Error::Api(error))
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}
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}
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}
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/// Follows the link to the next page, returns None of the next
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/// page does not exist.
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pub async fn next(
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&self,
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client: &Client,
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) -> Option<Result<Self, error::Error>> {
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match
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self
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.links
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.next
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.as_ref()
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.map(|url| Self::follow_link(client, &url)) {
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Some(data) => Some(data.await),
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None => None,
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}
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}
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/// Follows the link to the previous page, returns None of the
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/// previous page does not exist.
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pub async fn prev(
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&self, client: &Client,
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) -> Option<Result<Self, error::Error>> {
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match
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self
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.links
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.prev
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.as_ref()
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.map(|url| Self::follow_link(client, &url)) {
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Some(data) => Some(data.await),
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None => None,
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}
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}
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}
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}
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}
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