classify functions into different files

bigmap.go

@@ -0,0 +1,141 @@
+package tzkt
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+// GetBigMapValueByPointer returns the value of a key in a bigmap.
+func (c *TZKT) GetBigMapValueByPointer(pointer int, key string) ([]byte, error) {
+	u := url.URL{
+		Scheme: "https",
+		Host:   c.endpoint,
+		Path:   fmt.Sprintf("/v1/bigmaps/%d/keys", pointer),
+		RawQuery: url.Values{
+			"select": []string{"value"},
+			"key":    []string{key},
+		}.Encode(),
+	}
+
+	req, err := http.NewRequest("GET", u.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	defer resp.Body.Close()
+
+	var results []json.RawMessage
+
+	if err := json.NewDecoder(resp.Body).Decode(&results); err != nil {
+		return nil, err
+	}
+
+	if len(results) == 0 {
+		return nil, fmt.Errorf("error key not found")
+	}
+
+	return results[0], nil
+}
+
+// GetBigMapPointersByContract returns a list of big map pointer for a contract.
+// This call accepts tags and an option.
+func (c *TZKT) GetBigMapPointersByContract(contract string, tags ...string) ([]int, error) {
+	query := url.Values{
+		"contract": []string{contract},
+		"select":   []string{"ptr"},
+	}
+
+	if len(tags) > 0 {
+		query["tags.any"] = []string{strings.Join(tags, ",")}
+	}
+
+	u := url.URL{
+		Scheme:   "https",
+		Host:     c.endpoint,
+		Path:     "/v1/bigmaps",
+		RawQuery: query.Encode(),
+	}
+
+	req, err := http.NewRequest("GET", u.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	defer resp.Body.Close()
+	var pointer []int
+
+	err = json.NewDecoder(resp.Body).Decode(&pointer)
+	if err != nil {
+		return nil, err
+	}
+
+	return pointer, nil
+}
+
+// GetBigMapsByContractAndPath get BitMap of contract
+func (c *TZKT) GetBigMapsByContractAndPath(contract string, path string) (int, error) {
+	u := url.URL{
+		Scheme: "https",
+		Host:   c.endpoint,
+		Path:   "/v1/bigmaps",
+		RawQuery: url.Values{
+			"contract": []string{contract},
+			"select":   []string{"ptr"},
+			"path":     []string{path},
+		}.Encode(),
+	}
+
+	fmt.Println(u)
+
+	req, err := http.NewRequest("GET", u.String(), nil)
+	if err != nil {
+		return 0, err
+	}
+
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return 0, err
+	}
+
+	defer resp.Body.Close()
+	var pointer []int
+
+	err = json.NewDecoder(resp.Body).Decode(&pointer)
+	if err != nil {
+		return 0, err
+	}
+
+	if len(pointer) == 0 {
+		return 0, fmt.Errorf("no pointer")
+	}
+
+	return pointer[0], nil
+}
+
+// GetBigMapPointerForContractTokenMetadata returns the bigmap pointer of token_metadata
+// for a specific contract
+func (c *TZKT) GetBigMapPointerForContractTokenMetadata(contract string) (int, error) {
+	pointers, err := c.GetBigMapPointersByContract(contract, "token_metadata")
+	if err != nil {
+		return 0, err
+	}
+
+	if len(pointers) == 0 {
+		return 0, fmt.Errorf("no pointer")
+	}
+
+	return pointers[0], nil
+}