fn_registry/functions/infra/http_get_json.md

name, kind, lang, domain, version, purity, signature, description, tags, uses_functions, uses_types, returns, returns_optional, error_type, imports, params, output, tested, tests, test_file_path, file_path

name	kind	lang	domain	version	purity	signature	description	tags	uses_functions	uses_types	returns	returns_optional	error_type	imports	params	output	tested	tests	test_file_path	file_path
http_get_json	function	go	infra	1.0.0	impure	func HttpGetJSON(url string, headers map[string]string, timeout time.Duration) (map[string]any, error)	GET request que espera JSON. Agrega Accept: application/json automaticamente. Retorna error con status code si >= 400. Siempre cierra body con defer.	http json get client network stdlib infra				false	error_go_core	encoding/json fmt io net/http time	name desc url URL del endpoint HTTP a consultar name desc headers mapa de headers custom a incluir en la solicitud name desc timeout duracion maxima para completar la solicitud	mapa con la estructura JSON decodificada del response	true	httptest.Server con respuesta JSON Status 404 → error Timeout → error Headers custom	functions/infra/http_get_json_test.go	functions/infra/http_get_json.go

Ejemplo

result, err := HttpGetJSON(
    "https://api.example.com/users",
    map[string]string{"X-Api-Key": "secret"},
    10*time.Second,
)
if err != nil {
    return nil, err
}
fmt.Println(result["total"])

Notas

Solo usa stdlib (net/http, encoding/json). El timeout se configura en el http.Client. El error incluye los primeros 200 bytes del body para facilitar debugging. Los headers custom se fusionan con Accept: application/json (custom tiene precedencia).