package cic_meta import ( "github.com/ethereum/go-ethereum/common" "net/http" "strings" "time" ) const ( personPointer = ":cic.person" phonePointer = ":cic.phone" preferencesPointer = ":cic.preferences" customPointer = ":cic.custom" ) type CicMeta struct { httpClient *http.Client baseUrl string } type CustomResponse struct { Tags []string `json:"tags"` } type PreferencesResponse struct { PreferredLanguage string `json:"preferred_language"` } type PersonResponse struct { DateRegistered int `json:"date_registered"` VCard string `json:"vcard"` Gender string `json:"gender"` Location Location `json:"location"` Products []string `json:"products"` DateOfBirth DateOfBirth `json:"date_of_birth"` } type Location struct { AreaName string `json:"area_name"` } type DateOfBirth struct { Year int `json:"year"` } func NewCicMeta(metaEndpoint string) *CicMeta { return &CicMeta{ httpClient: &http.Client{ Timeout: time.Second * 3, }, baseUrl: metaEndpoint, } } func (c *CicMeta) GetPhonePointer(phone string) (string, error) { hashedKey := mergeSha256Key([]byte(phone), []byte(phonePointer)) r, err := requestHandler(c, hashedKey) if err != nil { return "", err } return strings.Trim(string(r), "\""), nil } func (c *CicMeta) GetPersonMetadata(address string) (PersonResponse, error) { hashedKey := mergeSha256Key(common.HexToAddress(address).Bytes(), []byte(personPointer)) respData, err := requestHandler(c, hashedKey) if err != nil { return PersonResponse{}, err } metadata, err := jsonUnmarshaler(respData, PersonResponse{}) if err != nil { return PersonResponse{}, err } return metadata, nil } func (c *CicMeta) GetPreferencesMetadata(address string) (PreferencesResponse, error) { hashedKey := mergeSha256Key(common.HexToAddress(address).Bytes(), []byte(preferencesPointer)) respData, err := requestHandler(c, hashedKey) if err != nil { return PreferencesResponse{}, err } metadata, err := jsonUnmarshaler(respData, PreferencesResponse{}) if err != nil { return PreferencesResponse{}, err } return metadata, nil } func (c *CicMeta) GetCustomMetadata(address string) (CustomResponse, error) { hashedKey := mergeSha256Key(common.HexToAddress(address).Bytes(), []byte(customPointer)) respData, err := requestHandler(c, hashedKey) if err != nil { return CustomResponse{}, err } metadata, err := jsonUnmarshaler(respData, CustomResponse{}) if err != nil { return CustomResponse{}, err } return metadata, nil }