Llama a funciones desde tu app

iOS

1. Sigue las instrucciones a fin de agregar Firebase a tu app para iOS.
2. Agrega el pod de Cloud Functions a tu Podfile:

   pod 'Firebase/Functions'

3. Luego de guardar el archivo, ejecuta este comando:

   pod install

Web

1. Sigue las instrucciones para agregar Firebase a tu app web.
2. Agrega la biblioteca cliente de Firebase Core y de Cloud Functions a tu app de la siguiente manera:

   <script src="https://www.gstatic.com/firebasejs/7.19.1/firebase.js"></script>
   <script src="https://www.gstatic.com/firebasejs/7.19.1/firebase-functions.js"></script>
   

El SDK de Cloud Functions también está disponible como un paquete npm.

1. Ejecuta el siguiente comando desde tu terminal:

   npm install firebase@7.19.1 --save
   

2. Solicita manualmente Firebase Core y Cloud Functions de la siguiente manera:

   const firebase = require("firebase");
   // Required for side-effects
   require("firebase/functions");
   

Java

1. Sigue las instrucciones a fin de agregar Firebase a tu app para Android.
2. En tu archivo build.gradle de nivel de proyecto, asegúrate de incluir el repositorio Maven de Google en las secciones buildscript y allprojects.
3. Agrega la dependencia para la biblioteca de Android de Cloud Functions al archivo Gradle (generalmente app/build.gradle) de tu módulo (nivel de la app):

   implementation 'com.google.firebase:firebase-functions:19.1.0'
   

Kotlin+KTX

1. Sigue las instrucciones a fin de agregar Firebase a tu app para Android.
2. En tu archivo build.gradle de nivel de proyecto, asegúrate de incluir el repositorio Maven de Google en las secciones buildscript y allprojects.
3. Agrega la dependencia para la biblioteca de Android de Cloud Functions al archivo Gradle (generalmente app/build.gradle) de tu módulo (nivel de la app):

   implementation 'com.google.firebase:firebase-functions:19.1.0'
   

C++

Para C++ con Android:

1. Sigue las instrucciones para agregar Firebase a tu proyecto de C++.
2. En tu archivo build.gradle de nivel de proyecto, asegúrate de incluir el repositorio Maven de Google en las secciones buildscript y allprojects.
3. Agrega la biblioteca firebase_functions a tu archivo CMakeLists.txt.

Para C++ con iOS:

1. Sigue las instrucciones para agregar Firebase a tu proyecto de C++.
2. Agrega el pod de Cloud Functions a tu Podfile:

   pod 'Firebase/Functions'

3. Luego de guardar el archivo, ejecuta este comando:

   pod install

4. Agrega los frameworks de Firebase Core y de Cloud Functions desde el SDK de Firebase C++ a tu proyecto de Xcode.
   • firebase.framework
   • firebase_functions.framework

Unity

1. Sigue las instrucciones para agregar Firebase a tu proyecto de Unity.
2. Agrega el FirebaseFunctions.unitypackage del SDK de Firebase Unity a tu proyecto de Unity.

Swift

lazy var functions = Functions.functions()
CloudAddCell.swift

Objective‑C

@property(strong, nonatomic) FIRFunctions *functions;
// ...
self.functions = [FIRFunctions functions];
CloudAddCell.m

Web

firebase.initializeApp({
  apiKey: '### FIREBASE API KEY ###',
  authDomain: '### FIREBASE AUTH DOMAIN ###',
  projectId: '### CLOUD FUNCTIONS PROJECT ID ###'
  databaseURL: 'https://### YOUR DATABASE NAME ###.firebaseio.com',
});

// Initialize Cloud Functions through Firebase
var functions = firebase.functions();

Java

private FirebaseFunctions mFunctions;
// ...
mFunctions = FirebaseFunctions.getInstance();
MainActivity.java

Kotlin+KTX

private lateinit var functions: FirebaseFunctions
// ...
functions = Firebase.functions
MainActivity.kt

C++

firebase::functions::Functions* functions;
// ...
functions = firebase::functions::Functions::GetInstance(app);

Unity

functions = Firebase.Functions.DefaultInstance;

Swift

functions.httpsCallable("addMessage").call(["text": inputField.text]) { (result, error) in
  if let error = error as NSError? {
    if error.domain == FunctionsErrorDomain {
      let code = FunctionsErrorCode(rawValue: error.code)
      let message = error.localizedDescription
      let details = error.userInfo[FunctionsErrorDetailsKey]
    }
    // ...
  }
  if let text = (result?.data as? [String: Any])?["text"] as? String {
    self.resultField.text = text
  }
}
CommentCell.swift

Objective‑C

[[_functions HTTPSCallableWithName:@"addMessage"] callWithObject:@{@"text": _inputField.text}
                                                      completion:^(FIRHTTPSCallableResult * _Nullable result, NSError * _Nullable error) {
  if (error) {
    if (error.domain == FIRFunctionsErrorDomain) {
      FIRFunctionsErrorCode code = error.code;
      NSString *message = error.localizedDescription;
      NSObject *details = error.userInfo[FIRFunctionsErrorDetailsKey];
    }
    // ...
  }
  self->_resultField.text = result.data[@"text"];
}];

Web

var addMessage = firebase.functions().httpsCallable('addMessage');
addMessage({text: messageText}).then(function(result) {
  // Read result of the Cloud Function.
  var sanitizedMessage = result.data.text;
  // ...
});
main.js

Java

private Task<String> addMessage(String text) {
    // Create the arguments to the callable function.
    Map<String, Object> data = new HashMap<>();
    data.put("text", text);
    data.put("push", true);

    return mFunctions
            .getHttpsCallable("addMessage")
            .call(data)
            .continueWith(new Continuation<HttpsCallableResult, String>() {
                @Override
                public String then(@NonNull Task<HttpsCallableResult> task) throws Exception {
                    // This continuation runs on either success or failure, but if the task
                    // has failed then getResult() will throw an Exception which will be
                    // propagated down.
                    String result = (String) task.getResult().getData();
                    return result;
                }
            });
}
MainActivity.java

Kotlin+KTX

private fun addMessage(text: String): Task<String> {
    // Create the arguments to the callable function.
    val data = hashMapOf(
        "text" to text,
        "push" to true
    )

    return functions
            .getHttpsCallable("addMessage")
            .call(data)
            .continueWith { task ->
                // This continuation runs on either success or failure, but if the task
                // has failed then result will throw an Exception which will be
                // propagated down.
                val result = task.result?.data as String
                result
            }
}
MainActivity.kt

C++

firebase::Future<firebase::functions::HttpsCallableResult> AddMessage(
    const std::string& text) {
  // Create the arguments to the callable function.
  firebase::Variant data = firebase::Variant::EmptyMap();
  data.map()["text"] = firebase::Variant(text);
  data.map()["push"] = true;

  // Call the function and add a callback for the result.
  firebase::functions::HttpsCallableReference doSomething =
      functions->GetHttpsCallable("addMessage");
  return doSomething.Call(data);
}

Unity

private Task<string> addMessage(string text) {
  // Create the arguments to the callable function.
  var data = new Dictionary<string, object>();
  data["text"] = text;
  data["push"] = true;

  // Call the function and extract the operation from the result.
  var function = functions.GetHttpsCallable("addMessage");
  return function.CallAsync(data).ContinueWith((task) => {
    return (string) task.Result.Data;
  });
}

Swift

if let error = error as NSError? {
  if error.domain == FunctionsErrorDomain {
    let code = FunctionsErrorCode(rawValue: error.code)
    let message = error.localizedDescription
    let details = error.userInfo[FunctionsErrorDetailsKey]
  }
  // ...
}
CloudAddCell.swift

Objective‑C

if (error) {
  if (error.domain == FIRFunctionsErrorDomain) {
    FIRFunctionsErrorCode code = error.code;
    NSString *message = error.localizedDescription;
    NSObject *details = error.userInfo[FIRFunctionsErrorDetailsKey];
  }
  // ...
}
CloudAddCell.m

Web

var addMessage = firebase.functions().httpsCallable('addMessage');
addMessage({text: messageText}).then(function(result) {
  // Read result of the Cloud Function.
  var sanitizedMessage = result.data.text;
}).catch(function(error) {
  // Getting the Error details.
  var code = error.code;
  var message = error.message;
  var details = error.details;
  // ...
});
main.js

Java

addMessage(inputMessage)
        .addOnCompleteListener(new OnCompleteListener<String>() {
            @Override
            public void onComplete(@NonNull Task<String> task) {
                if (!task.isSuccessful()) {
                    Exception e = task.getException();
                    if (e instanceof FirebaseFunctionsException) {
                        FirebaseFunctionsException ffe = (FirebaseFunctionsException) e;
                        FirebaseFunctionsException.Code code = ffe.getCode();
                        Object details = ffe.getDetails();
                    }

                    // ...
                }

                // ...
            }
        });
MainActivity.java

Kotlin+KTX

addMessage(inputMessage)
        .addOnCompleteListener(OnCompleteListener { task ->
            if (!task.isSuccessful) {
                val e = task.exception
                if (e is FirebaseFunctionsException) {
                    val code = e.code
                    val details = e.details
                }

                // ...
            }

            // ...
        })
MainActivity.kt

C++

void OnAddMessageCallback(
    const firebase::Future<firebase::functions::HttpsCallableResult>& future) {
  if (future.error() != firebase::functions::kErrorNone) {
    // Function error code, will be kErrorInternal if the failure was not
    // handled properly in the function call.
    auto code = static_cast<firebase::functions::Error>(future.error());

    // Display the error in the UI.
    DisplayError(code, future.error_message());
    return;
  }

  const firebase::functions::HttpsCallableResult *result = future.result();
  firebase::Variant data = result->data();
  // This will assert if the result returned from the function wasn't a string.
  std::string message = data.string_value();
  // Display the result in the UI.
  DisplayResult(message);
}

// ...

// ...
  auto future = AddMessage(message);
  future.OnCompletion(OnAddMessageCallback);
// ...

Unity

 addMessage(text).ContinueWith((task) => {
  if (task.IsFaulted) {
    foreach (var inner in task.Exception.InnerExceptions) {
      if (inner is FunctionsException) {
        var e = (FunctionsException) inner;
        // Function error code, will be INTERNAL if the failure
        // was not handled properly in the function call.
        var code = e.ErrorCode;
        var message = e.ErrorMessage;
      }
    }
  } else {
    string result = task.Result;
  }
});