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Complete MVP implementation of the Cast GHL Conversation Provider bridge: - Go module setup with chi router and mongo-driver dependencies - Config loading with env var validation and defaults - MongoDB token store with upsert, get, update, delete operations - Cast.ph SMS client with 429 retry logic and typed errors - Phone number normalization (E.164 ↔ Philippine local format) - GHL OAuth 2.0 install/callback/refresh flow - GHL webhook handler with ECDSA signature verification (async dispatch) - GHL API client for message status updates and inbound message stubs - Multi-stage Dockerfile, docker-compose with MongoDB, Woodpecker CI pipeline - Unit tests for phone normalization, Cast client, GHL webhook, and OAuth handlers Co-Authored-By: SideKx <sidekx.ai@sds.dev>
91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
package ghl
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"time"
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)
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const ghlAPIBase = "https://services.leadconnectorhq.com"
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const ghlAPIVersion = "2021-04-15"
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type APIClient struct {
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baseURL string
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httpClient *http.Client
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}
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func NewAPIClient() *APIClient {
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return &APIClient{
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baseURL: ghlAPIBase,
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httpClient: &http.Client{Timeout: 30 * time.Second},
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}
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}
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func (c *APIClient) UpdateMessageStatus(ctx context.Context, accessToken, messageID, status string) error {
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body, err := json.Marshal(MessageStatusUpdate{Status: status})
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if err != nil {
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return err
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}
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u := fmt.Sprintf("%s/conversations/messages/%s/status", c.baseURL, messageID)
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req, err := http.NewRequestWithContext(ctx, http.MethodPut, u, bytes.NewReader(body))
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if err != nil {
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return err
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}
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req.Header.Set("Authorization", "Bearer "+accessToken)
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Version", ghlAPIVersion)
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resp, err := c.httpClient.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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respBody, _ := io.ReadAll(resp.Body)
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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return fmt.Errorf("ghl update status returned %d: %s", resp.StatusCode, string(respBody))
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}
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return nil
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}
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func (c *APIClient) PostInboundMessage(ctx context.Context, accessToken string, msg *InboundMessage) (*InboundMessageResponse, error) {
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body, err := json.Marshal(msg)
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if err != nil {
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return nil, err
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}
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u := fmt.Sprintf("%s/conversations/messages/inbound", c.baseURL)
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, u, bytes.NewReader(body))
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if err != nil {
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return nil, err
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}
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req.Header.Set("Authorization", "Bearer "+accessToken)
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Version", ghlAPIVersion)
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resp, err := c.httpClient.Do(req)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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respBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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return nil, fmt.Errorf("ghl inbound message returned %d: %s", resp.StatusCode, string(respBody))
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}
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var result InboundMessageResponse
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if err := json.Unmarshal(respBody, &result); err != nil {
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return nil, fmt.Errorf("failed to parse inbound message response: %w", err)
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}
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return &result, nil
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}
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