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# Revisión de los registros del servidor de Appium
Una vez que haya [iniciado una sesión de Appium](appium-endpoint-interaction.md), podrá ver los registros del servidor de Appium en directo en la consola Device Farm o descargarlos cuando finalice la sesión de acceso remoto. Estas son las instrucciones para hacerlo:
------
#### [ Console ]
1. En la consola de Device Farm, abra la sesión de acceso remoto del dispositivo.
1. Inicie una sesión de punto final de Appium con el dispositivo desde su IDE local o el Inspector de Appium
1. Luego, el registro del servidor de Appium aparecerá junto al dispositivo en la página de la sesión de acceso remoto, con la «información de la sesión» disponible en la parte inferior de la página, debajo del dispositivo:
------
#### [ AWS CLI ]
*Nota: en este ejemplo se utiliza la [herramienta de línea de comandos `curl`](https://curl.se/) para extraer el registro de Device Farm.*
Durante o después de la sesión, puedes usar la [https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html](https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html)API de Device Farm para descargar el registro del servidor de Appium.
```
$ aws devicefarm list-artifacts \
--type FILE \
--arn arn:aws:devicefarm:us-west-2:111122223333:session:12345678-1111-2222-333-456789abcdef/12345678-1111-2222-333-456789abcdef/00000
```
Esto mostrará resultados como los siguientes durante la sesión:
```
{
"artifacts": [
{
"arn": "arn:aws:devicefarm:us-west-2:111122223333:artifact:12345678-1111-2222-333-456789abcdef/12345678-1111-2222-333-456789abcdef/00000",
"name": "AppiumServerLogOutput",
"type": "APPIUM_SERVER_LOG_OUTPUT",
"extension": "",
"url": "https://prod-us-west-2-results.s3.dualstack.us-west-2.amazonaws.com/111122223333/12345678..."
}
]
}
```
Y lo siguiente una vez finalizada la sesión:
```
{
"artifacts": [
{
"arn": "arn:aws:devicefarm:us-west-2:111122223333:artifact:12345678-1111-2222-333-456789abcdef/12345678-1111-2222-333-456789abcdef/00000",
"name": "Appium Server Output",
"type": "APPIUM_SERVER_OUTPUT",
"extension": "log",
"url": "https://prod-us-west-2-results.s3.dualstack.us-west-2.amazonaws.com/111122223333/12345678..."
}
]
}
```
```
$ curl "https://prod-us-west-2-results.s3.dualstack.us-west-2.amazonaws.com/111122223333/12345678..."
```
Esto mostrará un resultado como el siguiente:
```
info Appium Welcome to Appium v2.5.4
info Appium Non-default server args:
info Appium { address: '127.0.0.1',
info Appium allowInsecure:
info Appium [ 'execute_driver_script',
info Appium 'session_discovery',
info Appium 'perf_record',
info Appium 'adb_shell',
info Appium 'chromedriver_autodownload',
info Appium 'get_server_logs' ],
info Appium keepAliveTimeout: 0,
info Appium logNoColors: true,
info Appium logTimestamp: true,
info Appium longStacktrace: true,
info Appium sessionOverride: true,
info Appium strictCaps: true,
info Appium useDrivers: [ 'uiautomator' ] }
```
------
#### [ Python ]
*Nota: en este ejemplo se utiliza el `requests` paquete de terceros para descargar el registro, así como el AWS SDK para Python`boto3`.*
Durante o después de la sesión, puedes usar la [https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html](https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html)API de Device Farm para recuperar la URL del registro del servidor de Appium y, a continuación, descargarla.
```
import pathlib
import requests
import boto3
def download_appium_log():
session_arn = "arn:aws:devicefarm:us-west-2:111122223333:session:12345678-1111-2222-333-456789abcdef/12345678-1111-2222-333-456789abcdef/00000"
client = boto3.client("devicefarm", region_name="us-west-2")
# 1) List artifacts for the session (FILE artifacts), handling pagination
artifacts = []
token = None
while True:
kwargs = {"arn": session_arn, "type": "FILE"}
if token:
kwargs["nextToken"] = token
resp = client.list_artifacts(**kwargs)
artifacts.extend(resp.get("artifacts", []))
token = resp.get("nextToken")
if not token:
break
if not artifacts:
raise RuntimeError("No artifacts found in this session")
# Filter strictly to Appium server logs
allowed = {"APPIUM_SERVER_OUTPUT", "APPIUM_SERVER_LOG_OUTPUT"}
filtered = [a for a in artifacts if a.get("type") in allowed]
if not filtered:
raise RuntimeError("No Appium server log artifacts found (expected APPIUM_SERVER_OUTPUT or APPIUM_SERVER_LOG_OUTPUT)")
# Prefer the final 'OUTPUT' log, else the live 'LOG_OUTPUT'
chosen = (next((a for a in filtered if a.get("type") == "APPIUM_SERVER_OUTPUT"), None)
or next((a for a in filtered if a.get("type") == "APPIUM_SERVER_LOG_OUTPUT"), None))
url = chosen["url"]
ext = chosen.get("extension") or "log"
out = pathlib.Path(f"./appium_server_log.{ext}")
# 2) Download the artifact
with requests.get(url, stream=True) as r:
r.raise_for_status()
with open(out, "wb") as fh:
for chunk in r.iter_content(chunk_size=1024 * 1024):
if chunk:
fh.write(chunk)
print(f"Saved Appium server log to: {out.resolve()}")
download_appium_log()
```
Esto mostrará un resultado como el siguiente:
```
info Appium Welcome to Appium v2.5.4
info Appium Non-default server args:
info Appium { address: '127.0.0.1', allowInsecure: [ 'execute_driver_script', ... ], useDrivers: [ 'uiautomator' ] }
```
------
#### [ Java ]
*Nota: en este ejemplo se utiliza el AWS SDK para Java v2 y `HttpClient` para descargar el registro, y es compatible con las versiones 11 y superiores de JDK.*
Durante la sesión o después de ella, puedes usar la [https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html](https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html)API de Device Farm para recuperar la URL del registro del servidor Appium y, a continuación, descargarla.
```
import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.file.Path;
import java.time.Duration;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.devicefarm.DeviceFarmClient;
import software.amazon.awssdk.services.devicefarm.model.Artifact;
import software.amazon.awssdk.services.devicefarm.model.ArtifactCategory;
import software.amazon.awssdk.services.devicefarm.model.ListArtifactsRequest;
import software.amazon.awssdk.services.devicefarm.model.ListArtifactsResponse;
public class AppiumLogDownloader {
public static void main(String[] args) throws Exception {
String sessionArn = "arn:aws:devicefarm:us-west-2:111122223333:session:12345678-1111-2222-333-456789abcdef/12345678-1111-2222-333-456789abcdef/00000";
try (DeviceFarmClient client = DeviceFarmClient.builder()
.region(Region.US_WEST_2)
.build()) {
// 1) List artifacts for the session (FILE artifacts) with pagination
List all = new ArrayList<>();
String token = null;
do {
ListArtifactsRequest.Builder b = ListArtifactsRequest.builder()
.arn(sessionArn)
.type(ArtifactCategory.FILE);
if (token != null) b.nextToken(token);
ListArtifactsResponse page = client.listArtifacts(b.build());
all.addAll(page.artifacts());
token = page.nextToken();
} while (token != null && !token.isBlank());
// Filter strictly to Appium logs
List filtered = all.stream()
.filter(a -> {
String t = a.typeAsString();
return "APPIUM_SERVER_OUTPUT".equals(t) || "APPIUM_SERVER_LOG_OUTPUT".equals(t);
})
.toList();
if (filtered.isEmpty()) {
throw new RuntimeException("No Appium server log artifacts found (expected APPIUM_SERVER_OUTPUT or APPIUM_SERVER_LOG_OUTPUT).");
}
// Prefer OUTPUT; else LOG_OUTPUT
Artifact chosen = filtered.stream()
.filter(a -> "APPIUM_SERVER_OUTPUT".equals(a.typeAsString()))
.findFirst()
.orElseGet(() -> filtered.stream()
.filter(a -> "APPIUM_SERVER_LOG_OUTPUT".equals(a.typeAsString()))
.findFirst()
.get());
String url = chosen.url();
String ext = (chosen.extension() == null || chosen.extension().isBlank()) ? "log" : chosen.extension();
Path out = Path.of("appium_server_log." + ext);
// 2) Download the artifact with HttpClient
HttpClient http = HttpClient.newBuilder()
.connectTimeout(Duration.ofSeconds(10))
.build();
HttpRequest get = HttpRequest.newBuilder(URI.create(url))
.timeout(Duration.ofMinutes(5))
.GET()
.build();
HttpResponse resp = http.send(get, HttpResponse.BodyHandlers.ofFile(out));
if (resp.statusCode() / 100 != 2) {
throw new IOException("Failed to download log, HTTP " + resp.statusCode());
}
System.out.println("Saved Appium server log to: " + out.toAbsolutePath());
}
}
}
```
Esto mostrará un resultado como el siguiente:
```
info Appium Welcome to Appium v2.5.4
info Appium Non-default server args:
info Appium { address: '127.0.0.1', ..., useDrivers: [ 'uiautomator' ] }
```
------
#### [ JavaScript ]
*Nota: en este ejemplo se utiliza el AWS SDK para JavaScript la versión 3 y el nodo 18\+ `fetch` para descargar el registro.*
Durante o después de la sesión, puedes usar la [https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html](https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html)API de Device Farm para recuperar la URL del registro del servidor de Appium y, a continuación, descargarla.
```
import { DeviceFarmClient, ListArtifactsCommand } from "@aws-sdk/client-device-farm";
import { createWriteStream } from "fs";
import { pipeline } from "stream";
import { promisify } from "util";
const pipe = promisify(pipeline);
const client = new DeviceFarmClient({ region: "us-west-2" });
const sessionArn = "arn:aws:devicefarm:us-west-2:111122223333:session:12345678-1111-2222-333-456789abcdef/12345678-1111-2222-333-456789abcdef/00000";
// 1) List artifacts for the session (FILE artifacts), handling pagination
const artifacts = [];
let nextToken;
do {
const page = await client.send(new ListArtifactsCommand({
arn: sessionArn,
type: "FILE",
nextToken
}));
artifacts.push(...(page.artifacts ?? []));
nextToken = page.nextToken;
} while (nextToken);
if (!artifacts.length) throw new Error("No artifacts found");
// Strict filter to Appium logs
const filtered = (artifacts ?? []).filter(a =>
a.type === "APPIUM_SERVER_OUTPUT" || a.type === "APPIUM_SERVER_LOG_OUTPUT"
);
if (!filtered.length) {
throw new Error("No Appium server log artifacts found (expected APPIUM_SERVER_OUTPUT or APPIUM_SERVER_LOG_OUTPUT).");
}
// Prefer OUTPUT; else LOG_OUTPUT
const chosen =
filtered.find(a => a.type === "APPIUM_SERVER_OUTPUT") ??
filtered.find(a => a.type === "APPIUM_SERVER_LOG_OUTPUT");
const url = chosen.url;
const ext = chosen.extension || "log";
const outPath = `./appium_server_log.${ext}`;
// 2) Download the artifact
const resp = await fetch(url);
if (!resp.ok) {
throw new Error(`Failed to download log: ${resp.status} ${await resp.text().catch(()=>"")}`);
}
await pipe(resp.body, createWriteStream(outPath));
console.log("Saved Appium server log to:", outPath);
```
Esto mostrará un resultado como el siguiente:
```
info Appium Welcome to Appium v2.5.4
info Appium Non-default server args:
info Appium { address: '127.0.0.1', allowInsecure: [ 'execute_driver_script', ... ], useDrivers: [ 'uiautomator' ] }
```
------
#### [ C\# ]
*Nota: en este ejemplo se utiliza el AWS SDK para .NET y `HttpClient` para descargar el registro.*
Durante o después de la sesión, puedes usar la [https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html](https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html)API de Device Farm para recuperar la URL del registro del servidor de Appium y, a continuación, descargarla.
```
using System;
using System.Collections.Generic;
using System.IO;
using System.Net.Http;
using System.Threading.Tasks;
using System.Linq;
using Amazon;
using Amazon.DeviceFarm;
using Amazon.DeviceFarm.Model;
class AppiumLogDownloader
{
static async Task Main()
{
var sessionArn = "arn:aws:devicefarm:us-west-2:111122223333:session:12345678-1111-2222-333-456789abcdef/12345678-1111-2222-333-456789abcdef/00000";
using var client = new AmazonDeviceFarmClient(RegionEndpoint.USWest2);
// 1) List artifacts for the session (FILE artifacts), handling pagination
var all = new List();
string? token = null;
do
{
var page = await client.ListArtifactsAsync(new ListArtifactsRequest
{
Arn = sessionArn,
Type = ArtifactCategory.FILE,
NextToken = token
});
if (page.Artifacts != null) all.AddRange(page.Artifacts);
token = page.NextToken;
} while (!string.IsNullOrEmpty(token));
if (all.Count == 0)
throw new Exception("No artifacts found");
// Strict filter to Appium logs
var filtered = all.Where(a =>
a.Type == "APPIUM_SERVER_OUTPUT" || a.Type == "APPIUM_SERVER_LOG_OUTPUT").ToList();
if (filtered.Count == 0)
throw new Exception("No Appium server log artifacts found (expected APPIUM_SERVER_OUTPUT or APPIUM_SERVER_LOG_OUTPUT).");
// Prefer OUTPUT; else LOG_OUTPUT
var chosen = filtered.FirstOrDefault(a => a.Type == "APPIUM_SERVER_OUTPUT")
?? filtered.First(a => a.Type == "APPIUM_SERVER_LOG_OUTPUT");
var url = chosen.Url;
var ext = string.IsNullOrWhiteSpace(chosen.Extension) ? "log" : chosen.Extension;
var outPath = $"./appium_server_log.{ext}";
// 2) Download the artifact
using var http = new HttpClient();
using var resp = await http.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
resp.EnsureSuccessStatusCode();
await using (var fs = File.Create(outPath))
{
await resp.Content.CopyToAsync(fs);
}
Console.WriteLine($"Saved Appium server log to: {Path.GetFullPath(outPath)}");
}
}
```
Esto mostrará un resultado como el siguiente:
```
info Appium Welcome to Appium v2.5.4
info Appium Non-default server args:
info Appium { address: '127.0.0.1', ..., useDrivers: [ 'uiautomator' ] }
```
------
#### [ Ruby ]
*Nota: en este ejemplo se usa el AWS SDK for Ruby y `Net::HTTP` se descarga el registro.*
Durante o después de la sesión, puedes usar la [https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html](https://docs.aws.amazon.com/devicefarm/latest/APIReference/API_ListArtifacts.html)API de Device Farm para recuperar la URL del registro del servidor de Appium y, a continuación, descargarla.
```
require "aws-sdk-devicefarm"
require "net/http"
require "uri"
client = Aws::DeviceFarm::Client.new(region: "us-west-2")
session_arn = "arn:aws:devicefarm:us-west-2:111122223333:session:12345678-1111-2222-333-456789abcdef/12345678-1111-2222-333-456789abcdef/00000"
# 1) List artifacts for the session (FILE artifacts), handling pagination
artifacts = []
token = nil
loop do
page = client.list_artifacts(arn: session_arn, type: "FILE", next_token: token)
artifacts.concat(page.artifacts || [])
token = page.next_token
break if token.nil? || token.empty?
end
raise "No artifacts found" if artifacts.empty?
# Strict filter to Appium logs
filtered = (artifacts || []).select { |a| ["APPIUM_SERVER_OUTPUT", "APPIUM_SERVER_LOG_OUTPUT"].include?(a.type) }
raise "No Appium server log artifacts found (expected APPIUM_SERVER_OUTPUT or APPIUM_SERVER_LOG_OUTPUT)." if filtered.empty?
# Prefer OUTPUT; else LOG_OUTPUT
chosen = filtered.find { |a| a.type == "APPIUM_SERVER_OUTPUT" } ||
filtered.find { |a| a.type == "APPIUM_SERVER_LOG_OUTPUT" }
url = chosen.url
ext = (chosen.extension && !chosen.extension.empty?) ? chosen.extension : "log"
out_path = "./appium_server_log.#{ext}"
# 2) Download the artifact
uri = URI.parse(url)
Net::HTTP.start(uri.host, uri.port, use_ssl: (uri.scheme == "https")) do |http|
req = Net::HTTP::Get.new(uri)
http.request(req) do |resp|
raise "Failed GET: #{resp.code} #{resp.body}" unless resp.code.to_i / 100 == 2
File.open(out_path, "wb") { |f| resp.read_body { |chunk| f.write(chunk) } }
end
end
puts "Saved Appium server log to: #{File.expand_path(out_path)}"
```
Esto mostrará un resultado como el siguiente:
```
info Appium Welcome to Appium v2.5.4
info Appium Non-default server args:
info Appium { address: '127.0.0.1', allowInsecure: [ 'execute_driver_script', ... ], useDrivers: [ 'uiautomator' ] }
```
------