add new Nature method to Record interface

internal/mocks/mocks_gen.go

@@ -220,6 +220,44 @@ func (c *MockRecordFeesCall) DoAndReturn(f func() decimal.Decimal) *MockRecordFe
 	return c
 }
 
+// Nature mocks base method.
+func (m *MockRecord) Nature() string {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Nature")
+	ret0, _ := ret[0].(string)
+	return ret0
+}
+
+// Nature indicates an expected call of Nature.
+func (mr *MockRecordMockRecorder) Nature() *MockRecordNatureCall {
+	mr.mock.ctrl.T.Helper()
+	call := mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Nature", reflect.TypeOf((*MockRecord)(nil).Nature))
+	return &MockRecordNatureCall{Call: call}
+}
+
+// MockRecordNatureCall wrap *gomock.Call
+type MockRecordNatureCall struct {
+	*gomock.Call
+}
+
+// Return rewrite *gomock.Call.Return
+func (c *MockRecordNatureCall) Return(arg0 string) *MockRecordNatureCall {
+	c.Call = c.Call.Return(arg0)
+	return c
+}
+
+// Do rewrite *gomock.Call.Do
+func (c *MockRecordNatureCall) Do(f func() string) *MockRecordNatureCall {
+	c.Call = c.Call.Do(f)
+	return c
+}
+
+// DoAndReturn rewrite *gomock.Call.DoAndReturn
+func (c *MockRecordNatureCall) DoAndReturn(f func() string) *MockRecordNatureCall {
+	c.Call = c.Call.DoAndReturn(f)
+	return c
+}
+
 // Price mocks base method.
 func (m *MockRecord) Price() decimal.Decimal {
 	m.ctrl.T.Helper()

internal/open_figi.go

@@ -0,0 +1,60 @@
+package internal
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"time"
+)
+
+type OpenFIGI struct {
+	client http.Client
+
+	cache map[string]string
+}
+
+func NewOpenFIGI() *OpenFIGI {
+	return &OpenFIGI{
+		client: http.Client{
+			Timeout: 5 * time.Second,
+		},
+	}
+}
+
+func (of *OpenFIGI) Category(ctx context.Context, isin, ticker string) (string, error) {
+	rawBody, err := json.Marshal(mappingRequestBody{
+		IdType:  "ID_ISIN",
+		IdValue: isin,
+	})
+	if err != nil {
+		return "", fmt.Errorf("marshal mapping request body: %w", err)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, "https://api.openfigi.com/v3/mapping", bytes.NewBuffer(rawBody))
+	if err != nil {
+		return "", fmt.Errorf("create mapping request: %w", err)
+	}
+
+	res, err := of.client.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("make mapping request: %w", err)
+	}
+	defer res.Body.Close()
+
+	var resBody mappingResponseBody
+	err = json.NewDecoder(res.Body).Decode(&resBody)
+	if err != nil {
+		return "", fmt.Errorf("unmarshal response: %w", err)
+	}
+
+	return "", nil
+}
+
+type mappingRequestBody struct {
+	IdType  string `json:"idType"`
+	IdValue string `json:"idValue"`
+}
+
+type mappingResponseBody struct{}

internal/report.go

@@ -12,6 +12,7 @@ import (
 
 type Record interface {
 	Symbol() string
+	Nature() string
 	BrokerCountry() int64
 	AssetCountry() int64
 	Side() Side
@@ -29,6 +30,7 @@ type RecordReader interface {
 
 type ReportItem struct {
 	Symbol        string
+	Nature        string
 	BrokerCountry int64
 	AssetCountry  int64
 	BuyValue      decimal.Decimal

internal/trading212/record.go

@@ -27,6 +27,10 @@ func (r Record) Symbol() string {
 	return r.symbol
 }
 
+func (r Record) Nature() string {
+	return "" // TODO: implement this
+}
+
 func (r Record) BrokerCountry() int64 {
 	return int64(Country)
 }