tustvold opened a new issue, #242: URL: https://github.com/apache/arrow-rs-object-store/issues/242
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** <!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] (This section helps Arrow developers understand the context and *why* for this feature, in addition to the *what*) --> There are 4 broadly supported request preconditions: * If-Match * If-None-Match * If-Modified-Since * If-Unmodified-Since https://cloud.google.com/storage/docs/request-preconditions https://docs.microsoft.com/en-us/rest/api/storageservices/specifying-conditional-headers-for-blob-service-operations https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html#API_GetObject_RequestSyntax **Describe the solution you'd like** <!-- A clear and concise description of what you want to happen. --> I would like to propose adding ``` #[derive(Debug, Default)] struct GetOptions { pub if_match: Option<String>, pub if_none_match: Option<String>, pub if_modified_since: Option<DateTime<Utc>>, pub if_unmodified_since: Option<DateTime<Utc>>, pub range: Option<usize> } pub trait ObjectStore { async fn get_opts(&self, location: &Path, options: GetOptions) -> Result<GetResult> ... } pub enum Error { #[snafu(display("Precondition failed: {}", source))] Precondition { source: Box<dyn std::error::Error + Send + Sync + 'static>, } #[snafu(display("Not modified: {}", source))] NotModified { source: Box<dyn std::error::Error + Send + Sync + 'static>, } } ``` **Describe alternatives you've considered** <!-- A clear and concise description of any alternative solutions or features you've considered. --> We could not add support for this **Additional context** <!-- Add any other context or screenshots about the feature request here. --> apache/arrow-rs#2230 apache/arrow-rs#2240 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
