Add serde_path_to_error invocation to API layer

Author: Levilutz

modules/openapi-generator/src/main/resources/rust/reqwest-trait/api.mustache

@@ -488,7 +488,12 @@ impl {{classname}} for {{classname}}Client {
             {{/returnType}}
             {{#returnType}}
             match local_var_content_type {
+                {{^useSerdePathToError}}
                 ContentType::Json => serde_json::from_str(&local_var_content).map_err(Error::from),
+                {{/useSerdePathToError}}
+                {{#useSerdePathToError}}
+                ContentType::Json => serde_path_to_error::deserialize(&mut serde_json::Deserializer::from_str(&local_var_content)).map_err(Error::from),
+                {{/useSerdePathToError}}
                 {{#vendorExtensions.x-supports-plain-text}}
                 ContentType::Text => return Ok(local_var_content),
                 {{/vendorExtensions.x-supports-plain-text}}

modules/openapi-generator/src/main/resources/rust/reqwest/api.mustache

@@ -528,7 +528,12 @@ pub {{#supportAsync}}async {{/supportAsync}}fn {{{operationId}}}(configuration:
         {{#returnType}}
         let content = resp.text(){{#supportAsync}}.await{{/supportAsync}}?;
         match content_type {
+            {{^useSerdePathToError}}
             ContentType::Json => serde_json::from_str(&content).map_err(Error::from),
+            {{/useSerdePathToError}}
+            {{#useSerdePathToError}}
+            ContentType::Json => serde_path_to_error::deserialize(&mut serde_json::Deserializer::from_str(&content)).map_err(Error::from),
+            {{/useSerdePathToError}}
             {{#vendorExtensions.x-supports-plain-text}}
             ContentType::Text => return Ok(content),
             {{/vendorExtensions.x-supports-plain-text}}