Request body used only based on flag

internal/common/client.go

@@ -122,12 +122,20 @@ func (dsp *DefaultSessionProvider) Invalidate() {
 }
 
 type Client struct {
-	Url             string
-	httpClient      *http.Client
-	clientCode      string
-	partnerKey      string
-	headersFunc     AuthFunc
-	sessionProvider SessionProvider
+	Url                         string
+	httpClient                  *http.Client
+	clientCode                  string
+	partnerKey                  string
+	headersFunc                 AuthFunc
+	sessionProvider             SessionProvider
+	sendParametersInRequestBody bool
+}
+
+//SendParametersInRequestBody indicates to the client that the request should add the data payload in the
+//request body instead of using the query parameters. Using the request body eliminates the query size
+//limitations imposed by the maximum URL length
+func (cli *Client) SendParametersInRequestBody() {
+	cli.sendParametersInRequestBody = true
 }
 
 func (cli *Client) Close() {

internal/common/util.go

@@ -67,12 +67,20 @@ func (cli *Client) SendRequest(ctx context.Context, apiMethod string, filters ma
 
 	setParams(params, filters)
 
-	req, err := getHTTPRequest(cli, strings.NewReader(params.Encode()))
-	if err != nil {
-		return nil, common.NewFromError("failed to build http request", err, 0)
+	var req *http.Request
+	if cli.sendParametersInRequestBody {
+		req, err = getHTTPRequest(cli, strings.NewReader(params.Encode()))
+		if err != nil {
+			return nil, common.NewFromError("failed to build http request", err, 0)
+		}
+		req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	} else {
+		req, err = getHTTPRequest(cli, nil)
+		if err != nil {
+			return nil, common.NewFromError("failed to build http request", err, 0)
+		}
+		req.URL.RawQuery = params.Encode()
 	}
-
-	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
 	req = req.WithContext(ctx)
 
 	resp, err := doRequest(req, cli)

internal/common/util_test.go

@@ -2,13 +2,93 @@ package common
 
 import (
 	"context"
-	"github.com/stretchr/testify/assert"
 	"net/http"
 	"net/http/httptest"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/assert"
 )
 
+func TestSendRequestInBody(t *testing.T) {
+	calledTimes := 0
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		calledTimes++
+		assert.Equal(t, "", r.URL.Query().Get("clientCode"))
+		assert.Equal(t, "", r.URL.Query().Get("sessionKey"))
+		assert.Equal(t, "", r.URL.Query().Get("someKey"))
+		AssertFormValues(t, r, map[string]interface{}{
+			"clientCode": "someclient",
+			"sessionKey": "somesess",
+			"someKey":    "someValue",
+		})
+	}))
+	defer srv.Close()
+
+	cli := NewClientWithURL(
+		"somesess",
+		"someclient",
+		"",
+		srv.URL,
+		&http.Client{
+			Timeout: 5 * time.Second,
+		},
+		nil,
+	)
+	cli.SendParametersInRequestBody()
+
+	resp, err := cli.SendRequest(
+		context.Background(),
+		"getSuppliers",
+		map[string]string{"someKey": "someValue"},
+	)
+	assert.NoError(t, err)
+	if err != nil {
+		return
+	}
+	assert.Equal(t, 200, resp.StatusCode)
+	assert.Equal(t, 1, calledTimes)
+}
+
+func TestSendRequestInQuery(t *testing.T) {
+	calledTimes := 0
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		calledTimes++
+		assert.Equal(t, "someclient", r.URL.Query().Get("clientCode"))
+		assert.Equal(t, "somesess", r.URL.Query().Get("sessionKey"))
+		assert.Equal(t, "someValue", r.URL.Query().Get("someKey"))
+		AssertFormValues(t, r, map[string]interface{}{
+			"clientCode": "someclient",
+			"sessionKey": "somesess",
+			"someKey":    "someValue",
+		})
+	}))
+	defer srv.Close()
+
+	cli := NewClientWithURL(
+		"somesess",
+		"someclient",
+		"",
+		srv.URL,
+		&http.Client{
+			Timeout: 5 * time.Second,
+		},
+		nil,
+	)
+
+	resp, err := cli.SendRequest(
+		context.Background(),
+		"getSuppliers",
+		map[string]string{"someKey": "someValue"},
+	)
+	assert.NoError(t, err)
+	if err != nil {
+		return
+	}
+	assert.Equal(t, 200, resp.StatusCode)
+	assert.Equal(t, 1, calledTimes)
+}
+
 func TestSendRequestBulk(t *testing.T) {
 	calledTimes := 0
 	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

pkg/api/addresses/addressRequests_test.go

@@ -3,12 +3,13 @@ package addresses
 import (
 	"context"
 	"encoding/json"
-	"github.com/erply/api-go-wrapper/internal/common"
-	sharedCommon "github.com/erply/api-go-wrapper/pkg/api/common"
-	"github.com/stretchr/testify/assert"
 	"net/http"
 	"net/http/httptest"
 	"testing"
+
+	"github.com/erply/api-go-wrapper/internal/common"
+	sharedCommon "github.com/erply/api-go-wrapper/pkg/api/common"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestGetAddresses(t *testing.T) {
@@ -279,12 +280,12 @@ func TestGetAddressesBulkCustomUnmarshal(t *testing.T) {
 		{
 			AddressID: 123,
 			Address:   "Some Address 123",
-			TypeID:    "3",
+			TypeID:    3,
 		},
 		{
 			AddressID: 124,
 			Address:   "Some Address 124",
-			TypeID:    "4",
+			TypeID:    4,
 		},
 	}, suppliersBulk.BulkItems[0].Addresses)
 
@@ -294,7 +295,7 @@ func TestGetAddressesBulkCustomUnmarshal(t *testing.T) {
 		{
 			AddressID: 125,
 			Address:   "Some Address 125",
-			TypeID:    "5",
+			TypeID:    5,
 		},
 	}, suppliersBulk.BulkItems[1].Addresses)
 	assert.Equal(t, expectedStatus, suppliersBulk.BulkItems[1].Status)

pkg/api/client.go

@@ -4,6 +4,12 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"net/http"
+	"net/url"
+	"strconv"
+	"sync"
+	"time"
+
 	"github.com/erply/api-go-wrapper/internal/common"
 	"github.com/erply/api-go-wrapper/pkg/api/addresses"
 	"github.com/erply/api-go-wrapper/pkg/api/auth"
@@ -18,11 +24,6 @@ import (
 	"github.com/erply/api-go-wrapper/pkg/api/sales"
 	"github.com/erply/api-go-wrapper/pkg/api/servicediscovery"
 	"github.com/erply/api-go-wrapper/pkg/api/warehouse"
-	"net/http"
-	"net/url"
-	"strconv"
-	"sync"
-	"time"
 )
 
 type Client struct {
@@ -59,6 +60,13 @@ func (cl *Client) GetSession() (sessionKey string, err error) {
 	return cl.commonClient.GetSession()
 }
 
+//SendParametersInRequestBody indicates to the client that the request should add the data payload in the
+//request body instead of using the query parameters. Using the request body eliminates the query size
+//limitations imposed by the maximum URL length
+func (cl *Client) SendParametersInRequestBody() {
+	cl.commonClient.SendParametersInRequestBody()
+}
+
 //NewUnvalidatedClient returns a new Client without validating any of the incoming parameters giving the
 //developer more flexibility
 func NewUnvalidatedClient(sk, cc, partnerKey string, httpCli *http.Client) *Client {