Struct S3UploadConfig 

pub struct S3UploadConfig {
    pub endpoint: String,
    pub bucket: String,
    pub access_key_id: String,
    pub secret_access_key: String,
    pub prefix: String,
    pub region: Option<String>,
    pub virtual_hosted_style: bool,
    pub checksum_sha256: bool,
}

Resolved upload configuration for an S3-compatible destination.

Fields

endpoint: String

S3-compatible endpoint URL (e.g. https://s3.us-west-004.backblazeb2.com).

bucket: String

Bucket name.

access_key_id: String

Access key id.

secret_access_key: String

Secret access key.

prefix: String

Key prefix; joined with the snapshot file name by S3UploadConfig::key_for.

region: Option<String>

Optional signing region (DEFAULT_REGION is used when absent).

virtual_hosted_style: bool

Addressing style: true = virtual-hosted (bucket.endpoint/key), false = path style (endpoint/bucket/key, default — required by MinIO and accepted by AWS / B2 / R2).

checksum_sha256: bool

When true, puts carry an x-amz-checksum-sha256 header (the only algorithm object_store supports). Default false — some S3-compatible providers reject checksum headers with 400 InvalidArgument: Unsupported header.

Implementations

impl S3UploadConfig

pub fn from_vars(vars: &HashMap<String, String>) -> Result<Self, MiniAppError>

Resolves the configuration from an arbitrary variable map.

Pure function over vars — no process-environment access — so unit tests can exercise every branch without mutating std::env (which is unsafe under parallel test execution).

Empty-string values are treated as missing.

Errors

• MiniAppError::UploadNotConfigured listing every missing required variable by name.

pub fn from_env() -> Result<Self, MiniAppError>

Resolves the configuration from the process environment.

Errors

• MiniAppError::UploadNotConfigured when required variables are missing (see S3UploadConfig::from_vars).

pub fn key_for(&self, file_name: &str) -> String

Builds the object key for a snapshot file name by joining prefix and file_name with exactly one / (an empty prefix yields the bare name).

Trait Implementations

impl Clone for S3UploadConfig

fn clone(&self) -> S3UploadConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for S3UploadConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.