Full port of Odoo's ERP system from Python to Go, with the original Odoo JavaScript frontend (OWL framework) running against the Go server. Backend (10,691 LoC Go): - Custom ORM: CRUD, domains→SQL with JOINs, computed fields, sequences - 93 models across 14 modules (base, account, sale, stock, purchase, hr, project, crm, fleet, product, l10n_de, google_address/translate/calendar) - Auth with bcrypt + session cookies - Setup wizard (company, SKR03 chart, admin, demo data) - Double-entry bookkeeping constraint - Sale→Invoice workflow (confirm SO → generate invoice → post) - SKR03 chart of accounts (110 accounts) + German taxes (USt/VSt) - Record rules (multi-company filter) - Google integrations as opt-in modules (Maps, Translate, Calendar) Frontend: - Odoo's original OWL webclient (503 JS modules, 378 XML templates) - JS transpiled via Odoo's js_transpiler (ES modules → odoo.define) - SCSS compiled to CSS (675KB) via dart-sass - XML templates compiled to registerTemplate() JS calls - Static file serving from Odoo source addons - Login page, session management, menu navigation - Contacts list view renders with real data from PostgreSQL Infrastructure: - 14MB single binary (CGO_ENABLED=0) - Docker Compose (Go server + PostgreSQL 16) - Zero phone-home (no outbound calls to odoo.com) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
121 lines
2.6 KiB
Go
121 lines
2.6 KiB
Go
// Package tools provides a shared HTTP client for external API calls.
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package tools
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import (
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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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"net/url"
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"strings"
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"time"
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)
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// APIClient is a reusable HTTP client for external APIs.
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// All outbound calls go through this — no hidden network access.
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type APIClient struct {
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client *http.Client
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baseURL string
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apiKey string
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}
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// NewAPIClient creates a client for an external API.
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func NewAPIClient(baseURL, apiKey string) *APIClient {
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return &APIClient{
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client: &http.Client{
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Timeout: 10 * time.Second,
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},
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baseURL: strings.TrimRight(baseURL, "/"),
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apiKey: apiKey,
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}
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}
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// Get performs a GET request with query parameters.
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func (c *APIClient) Get(path string, params map[string]string) ([]byte, error) {
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u, err := url.Parse(c.baseURL + path)
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if err != nil {
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return nil, err
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}
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q := u.Query()
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for k, v := range params {
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q.Set(k, v)
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}
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if c.apiKey != "" {
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q.Set("key", c.apiKey)
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}
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u.RawQuery = q.Encode()
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resp, err := c.client.Get(u.String())
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if err != nil {
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return nil, fmt.Errorf("api: GET %s: %w", path, err)
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}
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defer resp.Body.Close()
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body, 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 != http.StatusOK {
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return nil, fmt.Errorf("api: GET %s returned %d: %s", path, resp.StatusCode, string(body[:min(200, len(body))]))
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}
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return body, nil
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}
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// GetJSON performs a GET and decodes the response as JSON.
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func (c *APIClient) GetJSON(path string, params map[string]string, result interface{}) error {
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body, err := c.Get(path, params)
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if err != nil {
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return err
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}
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return json.Unmarshal(body, result)
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}
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// PostJSON performs a POST with JSON body and decodes the response.
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func (c *APIClient) PostJSON(path string, params map[string]string, reqBody, result interface{}) error {
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u, err := url.Parse(c.baseURL + path)
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if err != nil {
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return err
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}
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q := u.Query()
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for k, v := range params {
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q.Set(k, v)
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}
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if c.apiKey != "" {
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q.Set("key", c.apiKey)
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}
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u.RawQuery = q.Encode()
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bodyBytes, err := json.Marshal(reqBody)
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if err != nil {
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return err
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}
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resp, err := c.client.Post(u.String(), "application/json", strings.NewReader(string(bodyBytes)))
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if err != nil {
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return fmt.Errorf("api: POST %s: %w", path, 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 err
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}
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("api: POST %s returned %d: %s", path, resp.StatusCode, string(respBody[:min(200, len(respBody))]))
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}
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return json.Unmarshal(respBody, result)
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}
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func min(a, b int) int {
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if a < b {
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return a
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}
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return b
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}
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