fix: use slices.Concat instead of sometimes modifying r.Options

Author: stainless-app[bot]

casgenerator.go

@@ -5,6 +5,7 @@ package casparser
 import (
 	"context"
 	"net/http"
+	"slices"
 
 	"github.com/CASParser/cas-parser-go/internal/apijson"
 	"github.com/CASParser/cas-parser-go/internal/requestconfig"
@@ -36,7 +37,7 @@ func NewCasGeneratorService(opts ...option.RequestOption) (r CasGeneratorService
 // submitting a mailback request to the specified CAS authority. Currently only
 // supports KFintech, with plans to support CAMS, CDSL, and NSDL in the future.
 func (r *CasGeneratorService) GenerateCas(ctx context.Context, body CasGeneratorGenerateCasParams, opts ...option.RequestOption) (res *CasGeneratorGenerateCasResponse, err error) {
-	opts = append(r.Options[:], opts...)
+	opts = slices.Concat(r.Options, opts)
 	path := "v4/generate"
 	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
 	return

casparser.go

@@ -5,6 +5,7 @@ package casparser
 import (
 	"context"
 	"net/http"
+	"slices"
 	"time"
 
 	"github.com/CASParser/cas-parser-go/internal/apijson"
@@ -37,7 +38,7 @@ func NewCasParserService(opts ...option.RequestOption) (r CasParserService) {
 // Statement) PDF files and returns data in a unified format. Use this endpoint
 // when you know the PDF is from CAMS or KFintech.
 func (r *CasParserService) CamsKfintech(ctx context.Context, body CasParserCamsKfintechParams, opts ...option.RequestOption) (res *UnifiedResponse, err error) {
-	opts = append(r.Options[:], opts...)
+	opts = slices.Concat(r.Options, opts)
 	path := "v4/cams_kfintech/parse"
 	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
 	return
@@ -47,7 +48,7 @@ func (r *CasParserService) CamsKfintech(ctx context.Context, body CasParserCamsK
 // files and returns data in a unified format. Use this endpoint when you know the
 // PDF is from CDSL.
 func (r *CasParserService) Cdsl(ctx context.Context, body CasParserCdslParams, opts ...option.RequestOption) (res *UnifiedResponse, err error) {
-	opts = append(r.Options[:], opts...)
+	opts = slices.Concat(r.Options, opts)
 	path := "v4/cdsl/parse"
 	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
 	return
@@ -57,7 +58,7 @@ func (r *CasParserService) Cdsl(ctx context.Context, body CasParserCdslParams, o
 // files and returns data in a unified format. Use this endpoint when you know the
 // PDF is from NSDL.
 func (r *CasParserService) Nsdl(ctx context.Context, body CasParserNsdlParams, opts ...option.RequestOption) (res *UnifiedResponse, err error) {
-	opts = append(r.Options[:], opts...)
+	opts = slices.Concat(r.Options, opts)
 	path := "v4/nsdl/parse"
 	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
 	return
@@ -68,7 +69,7 @@ func (r *CasParserService) Nsdl(ctx context.Context, body CasParserNsdlParams, o
 // CAS type and transforms the data into a consistent structure regardless of the
 // source.
 func (r *CasParserService) SmartParse(ctx context.Context, body CasParserSmartParseParams, opts ...option.RequestOption) (res *UnifiedResponse, err error) {
-	opts = append(r.Options[:], opts...)
+	opts = slices.Concat(r.Options, opts)
 	path := "v4/smart/parse"
 	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
 	return

client.go

@@ -6,6 +6,7 @@ import (
 	"context"
 	"net/http"
 	"os"
+	"slices"
 
 	"github.com/CASParser/cas-parser-go/internal/requestconfig"
 	"github.com/CASParser/cas-parser-go/option"
@@ -80,7 +81,7 @@ func NewClient(opts ...option.RequestOption) (r Client) {
 // For even greater flexibility, see [option.WithResponseInto] and
 // [option.WithResponseBodyInto].
 func (r *Client) Execute(ctx context.Context, method string, path string, params any, res any, opts ...option.RequestOption) error {
-	opts = append(r.Options, opts...)
+	opts = slices.Concat(r.Options, opts)
 	return requestconfig.ExecuteNewRequest(ctx, method, path, params, res, opts...)
 }