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10 funciones Go en infra/ para controlar Chrome via Chrome DevTools Protocol: chrome_launch, cdp_connect, cdp_navigate, cdp_evaluate, cdp_screenshot, cdp_click, cdp_type_text, cdp_wait_element, cdp_get_html, cdp_close. WebSocket RFC 6455 implementado sin dependencias externas. Incluye tests de integración con Chrome real. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
38 lines
1.2 KiB
Markdown
38 lines
1.2 KiB
Markdown
---
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name: cdp_screenshot
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kind: function
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lang: go
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domain: infra
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version: "1.0.0"
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purity: impure
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signature: "func CdpScreenshot(c *CDPConn, outputPath string, opts CdpScreenshotOpts) error"
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description: "Captura un screenshot de la pagina actual via Page.captureScreenshot y lo guarda en el archivo indicado. Soporta PNG y JPEG, viewport o pagina completa. Crea el directorio destino si no existe."
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tags: [chrome, cdp, browser, automation, screenshot, devtools, png]
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uses_functions: [cdp_connect_go_infra, cdp_evaluate_go_infra]
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uses_types: []
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returns: []
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returns_optional: false
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error_type: "error_go_core"
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imports: [encoding/base64, fmt, os, path/filepath]
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tested: true
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tests: ["TestCdpScreenshot"]
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test_file_path: "functions/infra/chrome_launch_test.go"
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file_path: "functions/infra/cdp_screenshot.go"
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---
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## Ejemplo
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```go
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conn, _ := CdpConnect(9222)
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CdpNavigate(conn, "https://example.com")
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err := CdpScreenshot(conn, "/tmp/page.png", CdpScreenshotOpts{
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FullPage: true,
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Format: "png",
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})
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```
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## Notas
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El struct `CdpScreenshotOpts` tiene campos: `FullPage bool`, `Quality int` (JPEG), `Format string` ("png" o "jpeg"). Chrome retorna la imagen como base64 que se decodifica y escribe al disco.
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