save shit

.gitignore

@@ -2,4 +2,4 @@
 *.exe~
 .env
 secret.json
-test
+/exe/

amocrm.go

@@ -1,132 +1,28 @@
 package amo
 
 import (
-	"fmt"
-	"time"
-	"errors"
 	"surdeus.su/core/amo/api"
-	"surdeus.su/core/amo/companies"
-	"surdeus.su/core/amo/contacts"
-	"surdeus.su/core/amo/leads"
-	"surdeus.su/core/amo/users"
-	"surdeus.su/core/amo/events"
 )
 
-type IAmoClient interface {
+const (
-	GetUser(userId string) (*users.User, error)
+	// Maximum entities for once.
-	GetLead(leadId string, query string) (*leads.Lead, error)
+	// It is set to be the most effective
-	UpdateLead(lead *leads.Lead) error
+	// but in fact can be greater.
-	GetCompany(companyId string, query string) (*companies.Company, error)
+	MaxEnt = 50
-	UpdateCompany(company *companies.Company) error
+)
-	GetContact(contactId string, query string) (*contacts.Contact, error)
-	UpdateContact(contact *contacts.Contact) error
-}
-
-type TokenPair = api.TokenPair
-type Options = api.ClientOptions
 
 type Client struct {
-	Api *api.Client
+	API *api.Client
 }
 
-type OauthTokenResponse = api.OauthTokenResponse
+func NewClient(secretPath string) (*Client, error) {
-
+	apiClient, err := api.NewAPI(secretPath)
-func NewAmoClient(secretPath string) (*Client, error) {
-	apiClient, err := api.NewApi(secretPath)
 	if err != nil {
 		return nil, err
 	}
 
 	return &Client{
-		Api: apiClient,
+		API: apiClient,
 	}, nil
 }
 
-func (client *Client) updateEntity(url string, id int, body interface{}) error {
-	err := client.Api.Patch(fmt.Sprintf("%s/%d", url, id), body, nil)
-	return err
-}
-
-func (client *Client) GetUser(userId int) (*users.User, error) {
-	user := new(users.User)
-	err := client.Api.Get(fmt.Sprintf("/api/v4/users/%d", userId), user)
-	return user, err
-}
-
-func (client *Client) GetLead(leadId int, query string) (*leads.Lead, error) {
-	deal := new(leads.Lead)
-	resource := fmt.Sprintf("/api/v4/leads/%d", leadId)
-	if query != "" {
-		resource = resource + "?" + query
-	}
-
-	err := client.Api.Get(resource, deal)
-	return deal, err
-}
-
-func (client *Client) UpdateLead(lead *leads.Lead) error {
-	return client.updateEntity("/api/v4/leads", lead.Id, lead)
-}
-
-func (client *Client) GetCompany(companyId int, query string) (*companies.Company, error) {
-	deal := new(companies.Company)
-	resource := fmt.Sprintf("/api/v4/companies/%d", companyId)
-	if query != "" {
-		resource = resource + "?" + query
-	}
-
-	err := client.Api.Get(resource, deal)
-	return deal, err
-}
-
-// Returns the events from AmoCRM by specified request.
-// If there are no such events returns an empty slice of events.
-func (client *Client) GetEvents(req events.EventsRequest) ([]events.Event, error) {
-	res := "/api/v4/events"
-	format := req.Format()
-	if format != "" {
-		res += "?" + format
-	}
-
-	var abs bool
-	ret := []events.Event{}
-	for {
-		resp := events.EventsResponse{}
-		err := client.Api.Get(res, &resp, abs)
-		if err != nil {
-			// Return empty if no content avialable.
-			if errors.Is(err, api.NoContentErr) {
-				return ret, nil
-			}
-			return nil, err
-		}
-		ret = append(ret, resp.Embedded.Events...)
-		if resp.Links.Next.Href == "" {
-			break
-		}
-		time.Sleep(time.Millisecond * 300)
-		abs = true
-		res = resp.Links.Next.Href
-	}
-
-	return ret, nil
-}
-
-func (client *Client) UpdateCompany(company *companies.Company) error {
-	return client.updateEntity("/api/v4/companies", company.Id, company)
-}
-
-func (client *Client) GetContact(contactId int, query string) (*contacts.Contact, error) {
-	deal := new(contacts.Contact)
-	resource := fmt.Sprintf("/api/v4/contacts/%d", contactId)
-	if query != "" {
-		resource = resource + "?" + query
-	}
-
-	err := client.Api.Get(resource, deal)
-	return deal, err
-}
-
-func (client *Client) UpdateContact(contact *contacts.Contact) error {
-	return client.updateEntity("/api/v4/contacts", contact.Id, contact)
-}

api/api.go

@@ -1,35 +1,28 @@
 package api
 
 import (
-	"encoding/json"
-	"io/ioutil"
-	"net/http"
 	"net/url"
-	"errors"
-	"bytes"
 	"time"
-	"fmt"
 	"log"
-	"io"
 	"os"
 )
 
 const (
-	DefaultContentType  = "application/json"
+	DefaultContentType = "application/json"
-	DefaultAccept       = DefaultContentType
+	DefaultAccept = DefaultContentType
 	DefaultCacheControl = "no-cache"
 )
 
 type ClientOptions struct {
-	Url          string `json:"url"`
+	URL string `json:"url"`
-	RedirectUrl  string `json:"redirect_url"`
+	RedirectURL string `json:"redirect_url"`
 
 	AuthCode string `json:"auth_code"`
 
-	ClientId     string `json:"client_id"`
+	ClientId string `json:"client_id"`
 	ClientSecret string `json:"client_secret"`
 
-	AccessToken  string `json:"access_token"`
+	AccessToken string `json:"access_token"`
 
 	ExpirationAt time.Time `json:"expiration_at,omitempty"`
 	RefreshToken string `json:"refresh_token"`
@@ -37,23 +30,16 @@ type ClientOptions struct {
 
 type Client struct {
 	*log.Logger
-	options *ClientOptions
+	options ClientOptions
-	BaseUrl *url.URL
+	BaseURL *url.URL
 	secretStoreFilePath string
 	Debug bool
 }
 
-type requestOptions struct {
+type OAuthTokenResponse struct {
-	HttpMethod string
+	TokenType string `json:"token_type"`
-	Body       interface{}
+	ExpiresIn int `json:"expires_in"`
-	Headers    map[string]string
+	AccessToken string `json:"access_token"`
-	Abs  bool
-}
-
-type OauthTokenResponse struct {
-	TokenType    string `json:"token_type"`
-	ExpiresIn    int    `json:"expires_in"`
-	AccessToken  string `json:"access_token"`
 	RefreshToken string `json:"refresh_token"`
 }
 
@@ -61,30 +47,34 @@ type TokenPair struct {
 	Access, Refresh string
 }
 
-func NewApi(secretPath string) (*Client, error) {
+func NewAPI(secretPath string) (*Client, error) {
 	client := &Client{
-		Logger: log.New(os.Stdout, "AmoCRM client: ", log.Ldate | log.Ltime),
+		Logger: log.New(
+			os.Stdout,
+			"AmoCRM client: ",
+			log.Ldate | log.Ltime,
+		),
 		secretStoreFilePath: secretPath,
 	}
 	options, err := client.readSecret()
 	if err != nil {
-		return nil, NewApiError(err)
+		return nil, NewErrorAPI(err)
 	}
 
 	if client.Debug {
 		client.Printf("ClientOptions: %v\n", options)
 	}
 
-	if options.Url == "" || options.RedirectUrl == "" {
+	if options.URL == "" || options.RedirectURL == "" {
-		return nil, NewApiError(InvalidUrlOptionsErr)
+		return nil, NewErrorAPI(ErrInvalidOptionsURL)
 	}
 
-	resolvedUrl, err := url.Parse(options.Url)
+	parsedURL, err := url.Parse(options.URL)
 	if err != nil {
-		return nil, NewApiError(err)
+		return nil, NewErrorAPI(err)
 	}
 
-	client.BaseUrl = resolvedUrl
+	client.BaseURL = parsedURL
 	client.options = options
 
 	var (
@@ -92,293 +82,33 @@ func NewApi(secretPath string) (*Client, error) {
 		exchangeErr error
 		exchanged bool
 	)
-	if client.options.AccessToken == "" && client.options.RefreshToken == "" {
+	if client.options.AccessToken == "" &&
+			client.options.RefreshToken == "" {
+
 		if client.options.ClientSecret == "" ||
 				client.options.ClientId == "" ||
 				client.options.AuthCode == "" {
-					return nil, NewApiError(InvalidExchangeAuthOptionsErr)
+			return nil, NewErrorAPI(
+				ErrInvalidExchangeAuthOptions,
+			)
 		}
+
 		_, exchangeErr = client.ExchangeAuth()
 		exchanged = true
 	}
 
-	if (!exchanged || exchangeErr != nil) && options.RefreshToken != "" {
+	if (!exchanged || exchangeErr != nil) &&
+			options.RefreshToken != "" {
+
 		// Refreshing token before the work.
 		// Should think of how often should refresh
 		// the token. (see the ExpiresIn)
 		_, err = client.RefreshToken()
 		if err != nil {
-			return nil, NewApiError(err)
+			return nil, NewErrorAPI(err)
 		}
 	}
 
 	return client, nil
 }
 
-func (api *Client) readSecret() (*ClientOptions, error) {
-	f, err := os.Open(api.secretStoreFilePath)
-	if err != nil {
-		return nil, err
-	}
-
-	bts, err := io.ReadAll(f)
-	if err != nil {
-		return nil, err
-	}
-
-
-	ret := ClientOptions{}
-	err = json.Unmarshal(bts, &ret)
-	if err != nil {
-		return nil, err
-	}
-
-	return &ret, nil
-}
-
-func (api *Client) writeSecret() error {
-	bts, err := json.MarshalIndent(api.options, "", "\t")
-	if err != nil {
-		return err
-	}
-
-	err = os.WriteFile(api.secretStoreFilePath, bts, 0644)
-	if err != nil {
-		return err
-	}
-	return err
-}
-
-func (api *Client) rdoRequest(resourceUrl string, requestParams requestOptions, result interface{}) error {
-	var (
-		requestUrl *url.URL
-		err error
-	)
-
-	if !requestParams.Abs {
-		resolvedUrl, err := url.Parse(resourceUrl)
-		if err != nil {
-			return err
-		}
-
-		requestUrl = api.BaseUrl.ResolveReference(resolvedUrl)
-	} else {
-		requestUrl, err = url.Parse(resourceUrl)
-		if err != nil {
-			return err
-		}
-	}
-
-	requestBody := new(bytes.Buffer)
-	if requestParams.Body != nil {
-		encoder := json.NewEncoder(requestBody)
-		if err := encoder.Encode(requestParams.Body); err != nil {
-			return err
-		}
-	}
-
-	request, err := http.NewRequest(requestParams.HttpMethod, requestUrl.String(), requestBody)
-	if err != nil {
-		return err
-	}
-
-	if requestParams.Headers != nil {
-		for k, v := range requestParams.Headers {
-			request.Header.Set(k, v)
-		}
-	}
-
-	response, err := http.DefaultClient.Do(request)
-	if api.Debug {
-		api.Printf("Request: %+v\n\nAmo response: %+v\n\n", request, response)
-	}
-	if response == nil {
-		return RequestError(NoInternetErr)
-	}
-	if err != nil {
-		return RequestError(fmt.Errorf(
-			"%w: %d %s %s",
-			err,
-			response.StatusCode,
-			requestParams.HttpMethod,
-			resourceUrl,
-		))
-	}
-	defer response.Body.Close()
-
-	if response.StatusCode == 204 {
-		return RequestError(NoContentErr)
-	}
-
-	if response.StatusCode >= 400 {
-		var specErr error
-		if response.StatusCode == 401 {
-			specErr = NoAuthErr
-		}
-
-		responseErrorInfo, _ := ioutil.ReadAll(response.Body)
-		return RequestError(fmt.Errorf(
-			"%w: %s %s %q %d",
-			specErr,
-			requestParams.HttpMethod,
-			resourceUrl,
-			string(responseErrorInfo),
-			response.StatusCode,
-		))
-	}
-
-	if result != nil {
-		decoder := json.NewDecoder(response.Body)
-		err = decoder.Decode(result)
-		if err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-func (api *Client) doRequest(
-	resourceUrl string, requestParams requestOptions, result any,
-) error {
-	var err error
-	err = api.rdoRequest(resourceUrl, requestParams, result)
-	if errors.Is(err, NoAuthErr) && api.options.RefreshToken != "" {
-		_, err = api.RefreshToken()
-		if err != nil {
-			return nil
-		}
-		return api.rdoRequest(resourceUrl, requestParams, result)
-	} else if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (api *Client) ExchangeAuth() (*TokenPair, error) {
-	result := &OauthTokenResponse{}
-	request := map[string] string {
-		"client_id": api.options.ClientId,
-		"client_secret": api.options.ClientSecret,
-		"grant_type": "authorization_code",
-		"code": api.options.AuthCode,
-		"redirect_uri": api.options.RedirectUrl,
-	}
-
-	err := api.rdoRequest("/oauth2/access_token", requestOptions{
-		HttpMethod: http.MethodPost,
-		Body:       request,
-		Headers:    getHeaders(""),
-	}, result)
-	if err != nil {
-		return nil, err
-	}
-
-	ret := &TokenPair{
-		Access: result.AccessToken,
-		Refresh: result.RefreshToken,
-	}
-
-	api.options.AccessToken = result.AccessToken
-	api.options.RefreshToken = result.RefreshToken
-	now := time.Now()
-	api.options.ExpirationAt = now.Add(
-		time.Second*time.Duration(result.ExpiresIn),
-	)
-	err = api.writeSecret()
-	if err != nil {
-		return nil, err
-	}
-	return ret, nil
-}
-
-func (api *Client) RefreshTokenIfExpired() error {
-	if api.options.RefreshToken == "" {
-		return nil
-	}
-
-	now := time.Now()
-	if now.After(api.options.ExpirationAt) || now.Equal(api.options.ExpirationAt){
-		_, err := api.RefreshToken()
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (api *Client) RefreshToken() (*OauthTokenResponse, error) {
-	result := new(OauthTokenResponse)
-	request := map[string]string{
-		"client_id":     api.options.ClientId,
-		"client_secret": api.options.ClientSecret,
-		"grant_type":    "refresh_token",
-		"refresh_token": api.options.RefreshToken,
-		"redirect_uri":  api.options.RedirectUrl,
-	}
-
-	err := api.rdoRequest("/oauth2/access_token", requestOptions{
-		HttpMethod: http.MethodPost,
-		Body:       request,
-		Headers:    getHeaders(""),
-	}, result)
-	if err != nil {
-		return nil, err
-	}
-
-	api.options.AccessToken = result.AccessToken
-	api.options.RefreshToken = result.RefreshToken
-	now := time.Now()
-	api.options.ExpirationAt = now.Add(
-		time.Second*time.Duration(result.ExpiresIn),
-	)
-	err = api.writeSecret()
-	if err != nil {
-		return nil, err
-	}
-
-	return result, nil
-}
-
-func (api *Client) Get(resource string, result interface{}, abs ...bool) error {
-	var a bool
-	if len(abs) > 0 {
-		a = abs[0]
-	} 
-	return api.doRequest(resource, requestOptions{
-		HttpMethod: http.MethodGet,
-		Body:       nil,
-		Headers:    getHeaders(api.options.AccessToken),
-		Abs: a,
-	}, result)
-}
-
-func (api *Client) Post(resource string, request interface{}, result interface{}) error {
-	return api.doRequest(resource, requestOptions{
-		HttpMethod: http.MethodPost,
-		Body:       request,
-		Headers:    getHeaders(api.options.AccessToken),
-	}, result)
-}
-
-func (api *Client) Patch(resource string, request interface{}, result interface{}) error {
-	return api.doRequest(resource, requestOptions{
-		HttpMethod: http.MethodPatch,
-		Body:       request,
-		Headers:    getHeaders(api.options.AccessToken),
-	}, result)
-}
-
-func getHeaders(token string) map[string]string {
-	headers := map[string]string{
-		"Accept":        DefaultAccept,
-		"Cache-Control": DefaultCacheControl,
-		"Content-Type":  DefaultContentType,
-	}
-
-	if len(token) > 0 {
-		headers["Authorization"] = fmt.Sprintf("Bearer %s", token)
-	}
-
-	return headers
-}

api/auth.go

@@ -0,0 +1,93 @@
+package api
+
+import "time"
+import "net/http"
+
+func (api *Client) ExchangeAuth() (*TokenPair, error) {
+	result := &OAuthTokenResponse{}
+	request := map[string] string {
+		"client_id": api.options.ClientId,
+		"client_secret": api.options.ClientSecret,
+		"grant_type": "authorization_code",
+		"code": api.options.AuthCode,
+		"redirect_uri": api.options.RedirectURL,
+	}
+
+	err := api.doRequest("/oauth2/access_token", RequestOptions{
+		Method: http.MethodPost,
+		Body: request,
+		Headers: makeHeaders(""),
+	}, result)
+	if err != nil {
+		return nil, err
+	}
+
+	ret := &TokenPair{
+		Access: result.AccessToken,
+		Refresh: result.RefreshToken,
+	}
+
+	api.options.AccessToken = result.AccessToken
+	api.options.RefreshToken = result.RefreshToken
+	now := time.Now()
+	api.options.ExpirationAt = now.Add(
+		time.Second*time.Duration(result.ExpiresIn),
+	)
+	err = api.writeSecret()
+	if err != nil {
+		return nil, err
+	}
+	return ret, nil
+}
+
+func (api *Client) RefreshTokenIfExpired() error {
+	if api.options.RefreshToken == "" {
+		return nil
+	}
+
+	now := time.Now()
+	if now.After(api.options.ExpirationAt) || now.Equal(api.options.ExpirationAt){
+		_, err := api.RefreshToken()
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (api *Client) RefreshToken() (*OAuthTokenResponse, error) {
+	result := new(OAuthTokenResponse)
+	request := map[string]string{
+		"client_id": api.options.ClientId,
+		"client_secret": api.options.ClientSecret,
+		"grant_type": "refresh_token",
+		"refresh_token": api.options.RefreshToken,
+		"redirect_uri": api.options.RedirectURL,
+	}
+
+	err := api.doRequest(
+		"/oauth2/access_token",
+		RequestOptions{
+			Method: http.MethodPost,
+			Body: request,
+			Headers: makeHeaders(""),
+		},
+		result,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	api.options.AccessToken = result.AccessToken
+	api.options.RefreshToken = result.RefreshToken
+	now := time.Now()
+	api.options.ExpirationAt = now.Add(
+		time.Second*time.Duration(result.ExpiresIn),
+	)
+	err = api.writeSecret()
+	if err != nil {
+		return nil, err
+	}
+
+	return result, nil
+}

api/endpoint.go

@@ -0,0 +1,40 @@
+package api
+
+import "net/http"
+
+func (api *Client) Get(
+	u string,
+	result interface{},
+) error {
+	params := RequestOptions{
+		Method: http.MethodGet,
+		Headers: makeHeaders(api.options.AccessToken),
+	}
+	return api.doRequest(u, params, result)
+}
+
+func (api *Client) Post(
+	u string,
+	request any,
+	result any,
+) error {
+	params := RequestOptions{
+		Method: http.MethodPost,
+		Body: request,
+		Headers: makeHeaders(api.options.AccessToken),
+	}
+	return api.doRequest(u, params, result)
+}
+
+func (api *Client) Patch(
+	u string,
+	request any,
+	result any,
+) error {
+	params := RequestOptions{
+		Method: http.MethodPatch,
+		Body: request,
+		Headers: makeHeaders(api.options.AccessToken),
+	}
+	return api.doRequest(u, params, result)
+}

api/errors.go

@@ -6,19 +6,21 @@ import (
 )
 
 var (
-	NoContentErr = errors.New("no content")
+	ErrNoContent = errors.New("no content")
-	NoAuthErr = errors.New("not authorized")
+	ErrNoAuth = errors.New("not authorized")
-	NoInternetErr = errors.New("no Internet provided")
+	ErrUnreachable = errors.New("unreachable")
-	InvalidUrlOptionsErr = errors.New("invalid URL options")
+	ErrInvalidOptionsURL = errors.New("invalid URL options")
-	InvalidExchangeAuthOptionsErr = errors.New("invalid ExchangeAuth options")
+	ErrInvalidExchangeAuthOptions= errors.New(
-	UrlParsingErr = errors.New("URL parsing")
+		"invalid ExchangeAuth options",
+	)
+	ErrUrlParsing= errors.New("URL parsing")
 )
 
-func NewApiError(err error) error {
+func NewErrorAPI(err error) error {
-	return fmt.Errorf("NewApi: %w", err)
+	return fmt.Errorf("NewAPI: %w", err)
 }
 
-func RequestError(err error) error {
+func NewRequestError(err error) error {
 	return fmt.Errorf("RequestError: %w", err)
 }
 

api/request.go

@@ -0,0 +1,165 @@
+package api
+
+import "encoding/json"
+import "net/http"
+import "net/url"
+import "errors"
+import "bytes"
+import "fmt"
+import "io"
+
+type RequestOptions struct {
+	Method string
+	Body interface{}
+	Headers map[string]string
+}
+
+func (client *Client) doRawRequest(
+	u *url.URL,
+	params RequestOptions,
+	result interface{},
+) error {
+	var (
+		err error
+	)
+
+	reqBody := new(bytes.Buffer)
+	if params.Body != nil {
+		encoder := json.NewEncoder(reqBody)
+		err := encoder.Encode(params.Body)
+		if err != nil {
+			return err
+		}
+	}
+
+	request, err := http.NewRequest(
+		params.Method,
+		u.String(),
+		reqBody,
+	)
+	if err != nil {
+		return err
+	}
+
+	if params.Headers != nil {
+		for k, v := range params.Headers {
+			request.Header.Set(k, v)
+		}
+	}
+
+	res, err := http.DefaultClient.Do(request)
+	if client.Debug {
+		client.Printf(
+			"Request: %+v\n\nAmo response: %+v\n\n",
+			request,
+			res,
+		)
+	}
+	if res == nil {
+		if err != nil {
+			return NewRequestError(err)
+		}
+		return NewRequestError(ErrUnreachable)
+	}
+	if err != nil {
+		return NewRequestError(fmt.Errorf(
+			"%w: %d %s %s",
+			err,
+			res.StatusCode,
+			params.Method,
+			u,
+		))
+	}
+	defer res.Body.Close()
+
+	if res.StatusCode == 204 {
+		return NewRequestError(ErrNoContent)
+	}
+
+	if res.StatusCode >= 400 {
+		var specErr error
+		if res.StatusCode == 401 {
+			specErr = ErrNoAuth
+		}
+
+		resErrInfo, _ := io.ReadAll(res.Body)
+		return NewRequestError(fmt.Errorf(
+			"%w: %s %s %q %d",
+			specErr,
+			params.Method,
+			u,
+			string(resErrInfo),
+			res.StatusCode,
+		))
+	}
+
+	if result != nil {
+		decoder := json.NewDecoder(res.Body)
+		err = decoder.Decode(result)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (client *Client) doRequest(
+	u string,
+	params RequestOptions,
+	result any,
+) error {
+	var (
+		err error
+		parsedURL *url.URL
+	)
+
+	parsedURL, err = url.Parse(u)
+	if err != nil {
+		return err
+	}
+	reqURL := client.BaseURL.ResolveReference(parsedURL)
+
+	err = client.doRawRequest(
+		reqURL,
+		params,
+		result,
+	)
+	if errors.Is(err, ErrNoAuth) &&
+			client.options.RefreshToken != "" {
+
+		_, err = client.RefreshToken()
+		if err != nil {
+			return nil
+		}
+
+		return client.doRawRequest(
+			reqURL,
+			params,
+			result,
+		)
+
+	} else if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func makeHeaders(
+	token string,
+) map[string]string {
+	headers := map[string]string{
+		"Accept": DefaultAccept,
+		"Cache-Control": DefaultCacheControl,
+		"Content-Type": DefaultContentType,
+	}
+
+	if len(token) > 0 {
+		headers["Authorization"] =
+			fmt.Sprintf("Bearer %s", token)
+	}
+
+	return headers
+}
+

api/secret.go

@@ -0,0 +1,39 @@
+package api
+
+import "encoding/json"
+import "os"
+import "io"
+
+func (api *Client) readSecret() (ClientOptions, error) {
+	f, err := os.Open(api.secretStoreFilePath)
+	if err != nil {
+		return ClientOptions{}, err
+	}
+
+	bts, err := io.ReadAll(f)
+	if err != nil {
+		return ClientOptions{}, err
+	}
+
+
+	ret := ClientOptions{}
+	err = json.Unmarshal(bts, &ret)
+	if err != nil {
+		return ClientOptions{}, err
+	}
+
+	return ret, nil
+}
+
+func (api *Client) writeSecret() error {
+	bts, err := json.MarshalIndent(api.options, "", "\t")
+	if err != nil {
+		return err
+	}
+
+	err = os.WriteFile(api.secretStoreFilePath, bts, 0644)
+	if err != nil {
+		return err
+	}
+	return err
+}

build.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+go build -o ./exe/ ./cmd/amocli/
+

cmd/amocli/getlead.go

@@ -0,0 +1,56 @@
+package main
+
+
+import "surdeus.su/core/amo"
+import "surdeus.su/core/ss/urlenc"
+import "surdeus.su/core/cli/mtool"
+import "encoding/json"
+import "strconv"
+import "log"
+import "fmt"
+//import "os"
+
+var getLead = mtool.T("get-leads").Func(func(flags *mtool.Flags){
+	var (
+		secretPath string
+	)
+
+	flags.StringVar(
+		&secretPath,
+		"secret",
+		"",
+		"path to JSON file with AMO CRM secrets",
+		"AMO_SECRET",
+	)
+	idStrs := flags.Parse()
+	ids := make([]int, len(idStrs))
+	for i, idStr := range idStrs {
+		var err error
+		ids[i], err = strconv.Atoi(idStr)
+		if err != nil {
+			log.Printf("Error: Atoi(%q): %s\n", err)
+			return
+		}
+	}
+
+	c, err := amo.NewClient(secretPath)
+	if err != nil {
+		log.Fatalf("NewAmoClient(...): %s\n", err)
+	}
+
+	leads, err := c.GetLeads(
+		urlenc.Array[int]{
+			"id",
+			ids,
+		},
+	)
+	if err != nil {
+		log.Fatalf("GetLeadsByIDs(...): %s\n", err)
+	}
+
+	bts, err := json.MarshalIndent(leads, "", "  ")
+	if err != nil {
+		log.Fatalf("json.Marshal(...): %s\n", err)
+	}
+	fmt.Printf("%s\n", bts)
+})

cmd/amocli/main.go

@@ -0,0 +1,12 @@
+package main
+
+import "surdeus.su/core/cli/mtool"
+import "os"
+
+func main() {
+	tool.Run(os.Args[1:])
+}
+
+var tool = mtool.T("amocli").Subs(
+	getLead,
+)

companies.go

@@ -0,0 +1,33 @@
+package amo
+
+import "surdeus.su/core/ss/urlenc"
+import "surdeus.su/core/amo/companies"
+import "fmt"
+
+func (client *Client) GetCompany(
+	companyId int,
+	opts ...urlenc.Builder,
+) (*companies.Company, error) {
+	deal := new(companies.Company)
+	resource := fmt.Sprintf(
+		"/api/v4/companies/%d?%s",
+		companyId,
+		urlenc.Join(opts...),
+	)
+
+	err := client.API.Get(resource, deal)
+	if err != nil {
+		return nil, err
+	}
+	return deal, nil
+}
+
+func (client *Client) UpdateCompany(
+	company *companies.Company,
+) error {
+	return client.updateEntity(
+		"/api/v4/companies",
+		company.Id,
+		company,
+	)
+}

contacts.go

@@ -0,0 +1,31 @@
+package amo
+
+import "surdeus.su/core/amo/contacts"
+import "surdeus.su/core/ss/urlenc"
+import "fmt"
+
+func (client *Client) GetContact(
+	contactId int,
+	opts ...urlenc.Builder,
+) (*contacts.Contact, error) {
+	deal := new(contacts.Contact)
+	res := fmt.Sprintf(
+		"/api/v4/contacts/%d?%s",
+		contactId,
+		urlenc.Join(opts...).Encode(),
+	)
+
+	err := client.API.Get(res, deal)
+	if err != nil {
+		return nil, err
+	}
+	return deal, nil
+}
+
+func (client *Client) UpdateContact(contact *contacts.Contact) error {
+	return client.updateEntity(
+		"/api/v4/contacts",
+		contact.Id,
+		contact,
+	)
+}

entity.go

@@ -0,0 +1,18 @@
+package amo
+
+import "fmt"
+
+func (client *Client) updateEntity(
+	u string,
+	id int,
+	body any,
+) error {
+	err := client.API.Patch(
+		fmt.Sprintf(
+			"%s/%d",
+			u, id,
+		),
+		body, nil,
+	)
+	return err
+}

events.go

@@ -0,0 +1,39 @@
+package amo
+
+import "surdeus.su/core/amo/events"
+import "surdeus.su/core/amo/api"
+import "surdeus.su/core/ss/urlenc"
+import "errors"
+import "fmt"
+
+// Returns the events from AmoCRM by specified request.
+// If there are no such events returns an empty slice of events.
+func (client *Client) GetEvents(
+	opts ...urlenc.Builder,
+) ([]events.Event, error) {
+	res := fmt.Sprintf(
+		"/api/v4/events?%s",
+		urlenc.Join(opts...).Encode(),
+	)
+
+	ret := []events.Event{}
+	for {
+		resp := events.EventsResponse{}
+		err := client.API.Get(res, &resp)
+		if err != nil {
+			// Return empty if no content avialable.
+			if errors.Is(err, api.ErrNoContent) {
+				break
+			}
+			return nil, err
+		}
+		ret = append(ret, resp.Embedded.Events...)
+		if resp.Links.Next.Href == "" {
+			break
+		}
+		//time.Sleep(time.Millisecond * 300)
+		res = resp.Links.Next.Href
+	}
+
+	return ret, nil
+}

filters/main.go

@@ -1,3 +0,0 @@
-package filters
-
-

go.mod

@@ -4,11 +4,12 @@ go 1.21.3
 
 require (
 	github.com/stretchr/testify v1.9.0
-	surdeus.su/core/ss v0.1.1
+	surdeus.su/core/ss v0.1.4
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	surdeus.su/core/cli v0.0.2 // indirect
 )

go.sum

@@ -8,5 +8,13 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+surdeus.su/core/cli v0.0.2 h1:RdHHk3/Fhwxz9PjaE+vTlCuF9KmhrmNUb5y4oqulrYI=
+surdeus.su/core/cli v0.0.2/go.mod h1:UKwCmcSX+x7XX9aF3gOaaAaJcJA3gtUmL4vdnM43+fM=
 surdeus.su/core/ss v0.1.1 h1:CXYBVRk4fv+Z7Cu51Nw5wDs5CoaEf2VpjB7XmFqu3DQ=
 surdeus.su/core/ss v0.1.1/go.mod h1:4gPfk0OjdJ1maKHyYiZwai7jIIwpVE5vgiBF2nubdrU=
+surdeus.su/core/ss v0.1.2 h1:gCVeAypwD1pO6mFZg1rOV5oYQMkIERrKxEmpGq6PGBI=
+surdeus.su/core/ss v0.1.2/go.mod h1:4gPfk0OjdJ1maKHyYiZwai7jIIwpVE5vgiBF2nubdrU=
+surdeus.su/core/ss v0.1.3 h1:/oUi9427THM4NqSzZZCXTmu8OJKWHVOb8P2kSvlq3Uw=
+surdeus.su/core/ss v0.1.3/go.mod h1:4gPfk0OjdJ1maKHyYiZwai7jIIwpVE5vgiBF2nubdrU=
+surdeus.su/core/ss v0.1.4 h1:rswGlNbjlxbYSYUcTCPTzJr1d13YkDtQw9JvFNmQsxQ=
+surdeus.su/core/ss v0.1.4/go.mod h1:4gPfk0OjdJ1maKHyYiZwai7jIIwpVE5vgiBF2nubdrU=

id.go

@@ -1,5 +0,0 @@
-package amo
-
-// Should use it later as an ID
-// for type safety in compilation time.
-type Id[V any] int64

leads.go

@@ -0,0 +1,62 @@
+package amo
+
+import "surdeus.su/core/amo/api"
+import "surdeus.su/core/amo/leads"
+import "surdeus.su/core/ss/urlenc"
+import "errors"
+import "fmt"
+
+// Get list of leads.
+func (client *Client) GetLeads(
+	opts ...urlenc.Builder,
+) ([]leads.Lead, error) {
+	res := fmt.Sprintf(
+		"/api/v4/leads?%s",
+		urlenc.Join(opts...).Encode(),
+	)
+
+	ret := []leads.Lead{}
+
+	for {
+		var lds leads.Leads
+		err := client.API.Get(res, &lds)
+		if err != nil {
+			if errors.Is(err, api.ErrNoContent) {
+				break
+			}
+			return nil, err
+		}
+
+		ret = append(ret, lds.Embedded.Leads...)
+
+		if lds.Links.Next.Href == "" {
+			break
+		}
+		res = lds.Links.Next.Href
+
+	}
+	return ret, nil
+}
+
+// Get lead with the specified ID.
+func (client *Client) GetLead(
+	leadId int,
+	opts ...urlenc.Builder,
+) (*leads.Lead, error) {
+	deal := new(leads.Lead)
+	resource := fmt.Sprintf(
+		"/api/v4/leads/%d?%s",
+		leadId,
+		urlenc.Join(opts...).Encode(),
+	)
+
+	err := client.API.Get(resource, deal)
+	return deal, err
+}
+
+func (client *Client) UpdateLead(
+	lead *leads.Lead,
+) error {
+	return client.updateEntity("/api/v4/leads", lead.Id, lead)
+}
+

leads/array.go

@@ -0,0 +1,25 @@
+package leads
+
+// The structure represents
+// response on the */leads .
+type Leads struct {
+	Page int `json:"_page"`
+	Links struct {
+		Self struct {
+			Href string `json:"href"`
+		} `json:"self"`
+		Next struct {
+			Href string `json:"href"`
+		} `json:"next"`
+		First struct {
+			Href string `json:"first"`
+		} `json:"first"`
+		Prev struct {
+			Href string `json:"href"`
+		} `json:"prev"`
+	} `json:"_links"`
+	Embedded struct {
+		Leads []Lead `json:"leads"`
+	} `json:"_embedded"`
+}
+

leads/leads.go

@@ -3,28 +3,28 @@ package leads
 import "surdeus.su/core/amo/common"
 
 type Lead struct {
-	Id                     int                        `json:"id"`
+	Id int `json:"id"`
-	Name                   string                     `json:"name,omitempty"`
+	Name string `json:"name,omitempty"`
-	Price                  int                        `json:"price,omitempty"`
+	Price int `json:"price,omitempty"`
-	ResponsibleUserId      int                        `json:"responsible_user_id,omitempty"`
+	ResponsibleUserId int `json:"responsible_user_id,omitempty"`
-	GroupId                int                        `json:"group_id,omitempty"`
+	GroupId int `json:"group_id,omitempty"`
-	StatusId               int                        `json:"status_id,omitempty"`
+	StatusId int `json:"status_id,omitempty"`
-	PipelineId             int                        `json:"pipeline_id,omitempty"`
+	PipelineId int `json:"pipeline_id,omitempty"`
-	LossReasonId           int                        `json:"loss_reason_id,omitempty"`
+	LossReasonId int `json:"loss_reason_id,omitempty"`
-	SourceId               interface{}                `json:"source_id,omitempty"`
+	SourceId interface{} `json:"source_id,omitempty"`
-	CreatedBy              int                        `json:"created_by,omitempty"`
+	CreatedBy int `json:"created_by,omitempty"`
-	UpdatedBy              int                        `json:"updated_by,omitempty"`
+	UpdatedBy int `json:"updated_by,omitempty"`
-	CreatedAt              int                        `json:"created_at,omitempty"`
+	CreatedAt int `json:"created_at,omitempty"`
-	UpdatedAt              int                        `json:"updated_at,omitempty"`
+	UpdatedAt int `json:"updated_at,omitempty"`
-	ClosedAt               int                        `json:"closed_at,omitempty"`
+	ClosedAt int `json:"closed_at,omitempty"`
-	ClosestTaskAt          interface{}                `json:"closest_task_at,omitempty"`
+	ClosestTaskAt interface{} `json:"closest_task_at,omitempty"`
-	IsDeleted              bool                       `json:"is_deleted,omitempty"`
+	IsDeleted bool `json:"is_deleted,omitempty"`
-	CustomFieldsValues     []common.CustomFieldsValue `json:"custom_fields_values,omitempty"`
+	CustomFieldsValues []common.CustomFieldsValue `json:"custom_fields_values,omitempty"`
-	Score                  interface{}                `json:"score,omitempty"`
+	Score interface{} `json:"score,omitempty"`
-	AccountId              int                        `json:"account_id,omitempty"`
+	AccountId int `json:"account_id,omitempty"`
-	IsPriceModifiedByRobot bool                       `json:"is_price_modified_by_robot,omitempty"`
+	IsPriceModifiedByRobot bool `json:"is_price_modified_by_robot,omitempty"`
-	Links                  Links                      `json:"_links,omitempty"`
+	Links Links `json:"_links,omitempty"`
-	Embedded               Embedded                   `json:"_embedded,omitempty"`
+	Embedded Embedded `json:"_embedded,omitempty"`
 }
 
 type Self struct {
@@ -36,44 +36,44 @@ type Links struct {
 }
 
 type Tags struct {
-	Id   int    `json:"id"`
+	Id int `json:"id"`
 	Name string `json:"name"`
 }
 
 type Metadata struct {
-	Quantity  int `json:"quantity"`
+	Quantity int `json:"quantity"`
 	CatalogId int `json:"catalog_id"`
 }
 
 type CatalogElements struct {
-	Id       int      `json:"id"`
+	Id int `json:"id"`
 	Metadata Metadata `json:"metadata"`
 }
 
 type LossReason struct {
-	Id        int    `json:"id"`
+	Id int `json:"id"`
-	Name      string `json:"name"`
+	Name string `json:"name"`
-	Sort      int    `json:"sort"`
+	Sort int `json:"sort"`
-	CreatedAt int    `json:"created_at"`
+	CreatedAt int `json:"created_at"`
-	UpdatedAt int    `json:"updated_at"`
+	UpdatedAt int `json:"updated_at"`
-	Links     Links  `json:"_links"`
+	Links Links `json:"_links"`
 }
 
 type Companies struct {
-	Id    int   `json:"id"`
+	Id int `json:"id"`
 	Links Links `json:"_links"`
 }
 
 type Contacts struct {
-	Id     int   `json:"id"`
+	Id int `json:"id"`
-	IsMain bool  `json:"is_main"`
+	IsMain bool `json:"is_main"`
-	Links  Links `json:"_links"`
+	Links Links `json:"_links"`
 }
 
 type Embedded struct {
-	Tags            []*Tags            `json:"tags"`
+	Tags []*Tags `json:"tags"`
 	CatalogElements []*CatalogElements `json:"catalog_elements"`
-	LossReason      []*LossReason      `json:"loss_reason"`
+	LossReason []*LossReason `json:"loss_reason"`
-	Companies       []*Companies       `json:"companies"`
+	Companies []*Companies `json:"companies"`
-	Contacts        []*Contacts        `json:"contacts"`
+	Contacts []*Contacts `json:"contacts"`
 }

options/main.go

@@ -1,18 +0,0 @@
-package options
-
-type Option interface {
-	GetOption() string
-}
-
-type Array[V any] struct {
-	Name string
-	Values []V
-}
-
-func (arr Array) GetOption() string {
-
-}
-
-type Filter struct {
-}
-

taskfile.yml

@@ -1,6 +0,0 @@
-version: 3
-
-tasks:
-  btest:
-    cmds:
-      - go build ./cmd/test

users.go

@@ -0,0 +1,18 @@
+package amo
+
+import "surdeus.su/core/ss/urlenc"
+import "surdeus.su/core/amo/users"
+import "fmt"
+
+func (client *Client) GetUser(
+	userId int,
+	opts ...urlenc.Builder,
+) (*users.User, error) {
+	user := new(users.User)
+	err := client.API.Get(fmt.Sprintf(
+		"/api/v4/users/%d?%s",
+		userId,
+		urlenc.Join(opts...).Encode(),
+	), user)
+	return user, err
+}