dynoxide/actions/
tag_resource.rs

1use crate::actions::helpers;
2use crate::errors::{DynoxideError, Result};
3use crate::storage::Storage;
4use crate::types::Tag;
5use serde::{Deserialize, Serialize};
6
7#[derive(Debug, Default, Deserialize)]
8pub struct TagResourceRequest {
9    #[serde(rename = "ResourceArn", default)]
10    pub resource_arn: Option<String>,
11    #[serde(rename = "Tags", default)]
12    pub tags: Vec<Tag>,
13}
14
15#[derive(Debug, Default, Serialize)]
16pub struct TagResourceResponse {}
17
18pub fn execute(storage: &Storage, request: TagResourceRequest) -> Result<TagResourceResponse> {
19    let arn = request.resource_arn.as_deref().unwrap_or("");
20    if arn.is_empty() {
21        return Err(DynoxideError::ValidationException(
22            "Invalid TableArn".to_string(),
23        ));
24    }
25    let table_name = helpers::parse_table_name_from_arn(arn)?;
26
27    // Validate tags before checking table existence (DynamoDB validates input first)
28    if request.tags.is_empty() {
29        return Err(DynoxideError::ValidationException(
30            "Atleast one Tag needs to be provided as Input.".to_string(),
31        ));
32    }
33    for tag in &request.tags {
34        validate_tag(tag)?;
35    }
36
37    // Verify table exists
38    if !storage.table_exists(table_name)? {
39        return Err(DynoxideError::ResourceNotFoundException(format!(
40            "Requested resource not found: ResourcArn: {arn} not found"
41        )));
42    }
43
44    storage.set_tags(table_name, &request.tags)?;
45
46    Ok(TagResourceResponse {})
47}
48
49fn validate_tag(tag: &Tag) -> Result<()> {
50    if tag.key.is_empty() || tag.key.len() > 128 {
51        return Err(DynoxideError::ValidationException(
52            "One or more parameter values were invalid: \
53             Tag key must be between 1 and 128 characters"
54                .to_string(),
55        ));
56    }
57    if tag.value.len() > 256 {
58        return Err(DynoxideError::ValidationException(
59            "One or more parameter values were invalid: \
60             Tag value must be between 0 and 256 characters"
61                .to_string(),
62        ));
63    }
64    Ok(())
65}
dynoxide/actions/tag_resource.rs

dynoxide/actions/
tag_resource.rs
