Llama a funciones desde tu app

Nodo.js

// Dependencies for callable functions.
const {onCall, HttpsError} = require("firebase-functions/v2/https");
const {logger} = require("firebase-functions/v2");

// Dependencies for the addMessage function.
const {getDatabase} = require("firebase-admin/database");
const sanitizer = require("./sanitizer");
index.js

Pitón

# Dependencies for callable functions.
from firebase_functions import https_fn, options

# Dependencies for writing to Realtime Database.
from firebase_admin import db, initialize_app
main.py

Nodo.js

// Saves a message to the Firebase Realtime Database but sanitizes the
// text by removing swearwords.
exports.addmessage = onCall((request) => {
  // ...
});
index.js

Pitón

@https_fn.on_call()
def addmessage(req: https_fn.CallableRequest) -> Any:
    """Saves a message to the Firebase Realtime Database but sanitizes the text
    by removing swear words."""
main.py

Nodo.js

// Message text passed from the client.
const text = request.data.text;
// Authentication / user information is automatically added to the request.
const uid = request.auth.uid;
const name = request.auth.token.name || null;
const picture = request.auth.token.picture || null;
const email = request.auth.token.email || null;
index.js

Pitón

# Message text passed from the client.
text = req.data["text"]
main.py
# Authentication / user information is automatically added to the request.
uid = req.auth.uid
name = req.auth.token.get("name", "")
picture = req.auth.token.get("picture", "")
email = req.auth.token.get("email", "")
main.py

Nodo.js

// returning result.
return {
  firstNumber: firstNumber,
  secondNumber: secondNumber,
  operator: "+",
  operationResult: firstNumber + secondNumber,
};
index.js

Pitón

return {
    "firstNumber": first_number,
    "secondNumber": second_number,
    "operator": "+",
    "operationResult": first_number + second_number
}
main.py

Nodo.js

// Saving the new message to the Realtime Database.
const sanitizedMessage = sanitizer.sanitizeText(text); // Sanitize message.

return getDatabase().ref("/messages").push({
  text: sanitizedMessage,
  author: {uid, name, picture, email},
}).then(() => {
  logger.info("New Message written");
  // Returning the sanitized message to the client.
  return {text: sanitizedMessage};
})
index.js

Pitón

# Saving the new message to the Realtime Database.
sanitized_message = sanitize_text(text)  # Sanitize message.
db.reference("/messages").push({  # type: ignore
    "text": sanitized_message,
    "author": {
        "uid": uid,
        "name": name,
        "picture": picture,
        "email": email
    }
})
print("New message written")

# Returning the sanitized message to the client.
return {"text": sanitized_message}
main.py

Nodo.js

const { onCall } = require("firebase-functions/v2/https");

exports.getGreeting = onCall(
  { cors: [/firebase\.com$/, "flutter.com"] },
  (request) => {
    return "Hello, world!";
  }
);

Nodo.js

// Checking attribute.
if (!(typeof text === "string") || text.length === 0) {
  // Throwing an HttpsError so that the client gets the error details.
  throw new HttpsError("invalid-argument", "The function must be called " +
          "with one arguments \"text\" containing the message text to add.");
}
// Checking that the user is authenticated.
if (!request.auth) {
  // Throwing an HttpsError so that the client gets the error details.
  throw new HttpsError("failed-precondition", "The function must be " +
          "called while authenticated.");
}
index.js

Pitón

# Checking attribute.
if not isinstance(text, str) or len(text) < 1:
    # Throwing an HttpsError so that the client gets the error details.
    raise https_fn.HttpsError(code=https_fn.FunctionsErrorCode.INVALID_ARGUMENT,
                              message=('The function must be called with one argument, "text",'
                                       " containing the message text to add."))

# Checking that the user is authenticated.
if req.auth is None:
    # Throwing an HttpsError so that the client gets the error details.
    raise https_fn.HttpsError(code=https_fn.FunctionsErrorCode.FAILED_PRECONDITION,
                              message="The function must be called while authenticated.")
main.py

iOS+

Sigue las instrucciones para agregar Firebase a tu aplicación de Apple .

Utilice Swift Package Manager para instalar y administrar las dependencias de Firebase.

1. En Xcode, con el proyecto de su aplicación abierto, navegue hasta Archivo > Agregar paquetes .
2. Cuando se le solicite, agregue el repositorio SDK de las plataformas Firebase Apple:

  https://github.com/firebase/firebase-ios-sdk.git

3. Elija la biblioteca de Cloud Functions.
4. Agregue el indicador -ObjC a la sección Otros indicadores del vinculador de la configuración de compilación de su objetivo.
5. Cuando termine, Xcode comenzará automáticamente a resolver y descargar sus dependencias en segundo plano.

API modular web

1. Siga las instrucciones para agregar Firebase a su aplicación web . Asegúrese de ejecutar el siguiente comando desde su terminal:

   npm install firebase@10.7.1 --save
   

2. Requiere manualmente tanto Firebase core como Cloud Functions:

    import { initializeApp } from 'firebase/app';
    import { getFunctions } from 'firebase/functions';
   
    const app = initializeApp({
        projectId: '### CLOUD FUNCTIONS PROJECT ID ###',
        apiKey: '### FIREBASE API KEY ###',
        authDomain: '### FIREBASE AUTH DOMAIN ###',
      });
    const functions = getFunctions(app);
   

Androide

1. Siga las instrucciones para agregar Firebase a su aplicación de Android .

2. En el archivo Gradle de su módulo (nivel de aplicación) (generalmente <project>/<app-module>/build.gradle.kts o <project>/<app-module>/build.gradle ), agregue la dependencia para Cloud Functions biblioteca para Android. Recomendamos utilizar Firebase Android BoM para controlar el control de versiones de la biblioteca.

   dependencies {
       // Import the BoM for the Firebase platform
       implementation(platform("com.google.firebase:firebase-bom:32.7.0"))
   
       // Add the dependency for the Cloud Functions library
       // When using the BoM, you don't specify versions in Firebase library dependencies
       implementation("com.google.firebase:firebase-functions")
   }
   

   Al usar Firebase Android BoM , su aplicación siempre usará versiones compatibles de las bibliotecas de Firebase Android.

   (Alternativa) Agregue dependencias de la biblioteca de Firebase sin usar la BoM

   Si elige no utilizar la BoM de Firebase, debe especificar cada versión de la biblioteca de Firebase en su línea de dependencia.

   Tenga en cuenta que si usa varias bibliotecas de Firebase en su aplicación, le recomendamos encarecidamente usar la BoM para administrar las versiones de la biblioteca, lo que garantiza que todas las versiones sean compatibles.

   dependencies {
       // Add the dependency for the Cloud Functions library
       // When NOT using the BoM, you must specify versions in Firebase library dependencies
       implementation("com.google.firebase:firebase-functions:20.4.0")
   }
   

   ¿Busca un módulo de biblioteca específico de Kotlin? A partir de octubre de 2023 (Firebase BoM 32.5.0) , tanto los desarrolladores de Kotlin como los de Java podrán depender del módulo de biblioteca principal (para más detalles, consulte las preguntas frecuentes sobre esta iniciativa ).

Rápido

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

C objetivo

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

API modular web

const app = initializeApp({
  projectId: '### CLOUD FUNCTIONS PROJECT ID ###',
  apiKey: '### FIREBASE API KEY ###',
  authDomain: '### FIREBASE AUTH DOMAIN ###',
});
const functions = getFunctions(app);

Kotlin+KTX

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

Java

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

Rápido

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 data = result?.data as? [String: Any], let text = data["text"] as? String {
    self.resultField.text = text
  }
}
CommentCell.swift

C objetivo

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

API con espacio de nombres web

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

API modular web

import { getFunctions, httpsCallable } from "firebase/functions";

const functions = getFunctions();
const addMessage = httpsCallable(functions, 'addMessage');
addMessage({ text: messageText })
  .then((result) => {
    // Read result of the Cloud Function.
    /** @type {any} */
    const data = result.data;
    const sanitizedMessage = data.text;
  });
fb_functions_call_add_message.js

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

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

Dart

    final result = await FirebaseFunctions.instance.httpsCallable('addMessage').call(
      {
        "text": text,
        "push": true,
      },
    );
    _response = result.data as String;

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);
}

Unidad

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;
  });
}

Rápido

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

C objetivo

if (error) {
  if ([error.domain isEqual:@"com.firebase.functions"]) {
    FIRFunctionsErrorCode code = error.code;
    NSString *message = error.localizedDescription;
    NSObject *details = error.userInfo[@"details"];
  }
  // ...
}
CloudAddCell.m

API con espacio de nombres web

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

API modular web

import { getFunctions, httpsCallable } from "firebase/functions";

const functions = getFunctions();
const addMessage = httpsCallable(functions, 'addMessage');
addMessage({ text: messageText })
  .then((result) => {
    // Read result of the Cloud Function.
    /** @type {any} */
    const data = result.data;
    const sanitizedMessage = data.text;
  })
  .catch((error) => {
    // Getting the Error details.
    const code = error.code;
    const message = error.message;
    const details = error.details;
    // ...
  });
fb_functions_call_add_message_error.js

Kotlin+KTX

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

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

Dart

try {
  final result =
      await FirebaseFunctions.instance.httpsCallable('addMessage').call();
} on FirebaseFunctionsException catch (error) {
  print(error.code);
  print(error.details);
  print(error.message);
}

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);
  // ...

Unidad

 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;
  }
});

Nodo.js

// Dependencies for callable functions.
const {onCall, HttpsError} = require("firebase-functions/v2/https");
const {logger} = require("firebase-functions/v2");

// Dependencies for the addMessage function.
const {getDatabase} = require("firebase-admin/database");
const sanitizer = require("./sanitizer");
index.js

Pitón

# Dependencies for callable functions.
from firebase_functions import https_fn, options

# Dependencies for writing to Realtime Database.
from firebase_admin import db, initialize_app
main.py

Nodo.js

// Saves a message to the Firebase Realtime Database but sanitizes the
// text by removing swearwords.
exports.addmessage = onCall((request) => {
  // ...
});
index.js

Pitón

@https_fn.on_call()
def addmessage(req: https_fn.CallableRequest) -> Any:
    """Saves a message to the Firebase Realtime Database but sanitizes the text
    by removing swear words."""
main.py

Nodo.js

// Message text passed from the client.
const text = request.data.text;
// Authentication / user information is automatically added to the request.
const uid = request.auth.uid;
const name = request.auth.token.name || null;
const picture = request.auth.token.picture || null;
const email = request.auth.token.email || null;
index.js

Pitón

# Message text passed from the client.
text = req.data["text"]
main.py
# Authentication / user information is automatically added to the request.
uid = req.auth.uid
name = req.auth.token.get("name", "")
picture = req.auth.token.get("picture", "")
email = req.auth.token.get("email", "")
main.py

Nodo.js

// returning result.
return {
  firstNumber: firstNumber,
  secondNumber: secondNumber,
  operator: "+",
  operationResult: firstNumber + secondNumber,
};
index.js

Pitón

return {
    "firstNumber": first_number,
    "secondNumber": second_number,
    "operator": "+",
    "operationResult": first_number + second_number
}
main.py

Nodo.js

// Saving the new message to the Realtime Database.
const sanitizedMessage = sanitizer.sanitizeText(text); // Sanitize message.

return getDatabase().ref("/messages").push({
  text: sanitizedMessage,
  author: {uid, name, picture, email},
}).then(() => {
  logger.info("New Message written");
  // Returning the sanitized message to the client.
  return {text: sanitizedMessage};
})
index.js

Pitón

# Saving the new message to the Realtime Database.
sanitized_message = sanitize_text(text)  # Sanitize message.
db.reference("/messages").push({  # type: ignore
    "text": sanitized_message,
    "author": {
        "uid": uid,
        "name": name,
        "picture": picture,
        "email": email
    }
})
print("New message written")

# Returning the sanitized message to the client.
return {"text": sanitized_message}
main.py

Nodo.js

const { onCall } = require("firebase-functions/v2/https");

exports.getGreeting = onCall(
  { cors: [/firebase\.com$/, "flutter.com"] },
  (request) => {
    return "Hello, world!";
  }
);

Nodo.js

// Checking attribute.
if (!(typeof text === "string") || text.length === 0) {
  // Throwing an HttpsError so that the client gets the error details.
  throw new HttpsError("invalid-argument", "The function must be called " +
          "with one arguments \"text\" containing the message text to add.");
}
// Checking that the user is authenticated.
if (!request.auth) {
  // Throwing an HttpsError so that the client gets the error details.
  throw new HttpsError("failed-precondition", "The function must be " +
          "called while authenticated.");
}
index.js

Pitón

# Checking attribute.
if not isinstance(text, str) or len(text) < 1:
    # Throwing an HttpsError so that the client gets the error details.
    raise https_fn.HttpsError(code=https_fn.FunctionsErrorCode.INVALID_ARGUMENT,
                              message=('The function must be called with one argument, "text",'
                                       " containing the message text to add."))

# Checking that the user is authenticated.
if req.auth is None:
    # Throwing an HttpsError so that the client gets the error details.
    raise https_fn.HttpsError(code=https_fn.FunctionsErrorCode.FAILED_PRECONDITION,
                              message="The function must be called while authenticated.")
main.py

iOS+

Sigue las instrucciones para agregar Firebase a tu aplicación de Apple .

Utilice Swift Package Manager para instalar y administrar las dependencias de Firebase.

1. En Xcode, con el proyecto de su aplicación abierto, navegue hasta Archivo > Agregar paquetes .
2. Cuando se le solicite, agregue el repositorio SDK de las plataformas Firebase Apple:

  https://github.com/firebase/firebase-ios-sdk.git

3. Elija la biblioteca de Cloud Functions.
4. Agregue el indicador -ObjC a la sección Otros indicadores del vinculador de la configuración de compilación de su objetivo.
5. Cuando termine, Xcode comenzará automáticamente a resolver y descargar sus dependencias en segundo plano.

API modular web

1. Siga las instrucciones para agregar Firebase a su aplicación web . Asegúrese de ejecutar el siguiente comando desde su terminal:

   npm install firebase@10.7.1 --save
   

2. Requiere manualmente tanto Firebase core como Cloud Functions:

    import { initializeApp } from 'firebase/app';
    import { getFunctions } from 'firebase/functions';
   
    const app = initializeApp({
        projectId: '### CLOUD FUNCTIONS PROJECT ID ###',
        apiKey: '### FIREBASE API KEY ###',
        authDomain: '### FIREBASE AUTH DOMAIN ###',
      });
    const functions = getFunctions(app);
   

Androide

1. Siga las instrucciones para agregar Firebase a su aplicación de Android .

2. En el archivo Gradle de su módulo (nivel de aplicación) (generalmente <project>/<app-module>/build.gradle.kts o <project>/<app-module>/build.gradle ), agregue la dependencia para Cloud Functions biblioteca para Android. Recomendamos utilizar Firebase Android BoM para controlar el control de versiones de la biblioteca.

   dependencies {
       // Import the BoM for the Firebase platform
       implementation(platform("com.google.firebase:firebase-bom:32.7.0"))
   
       // Add the dependency for the Cloud Functions library
       // When using the BoM, you don't specify versions in Firebase library dependencies
       implementation("com.google.firebase:firebase-functions")
   }
   

   Al usar Firebase Android BoM , su aplicación siempre usará versiones compatibles de las bibliotecas de Firebase Android.

   (Alternativa) Agregue dependencias de la biblioteca de Firebase sin usar la BoM

   Si elige no utilizar la BoM de Firebase, debe especificar cada versión de la biblioteca de Firebase en su línea de dependencia.

   Tenga en cuenta que si usa varias bibliotecas de Firebase en su aplicación, le recomendamos encarecidamente usar la BoM para administrar las versiones de la biblioteca, lo que garantiza que todas las versiones sean compatibles.

   dependencies {
       // Add the dependency for the Cloud Functions library
       // When NOT using the BoM, you must specify versions in Firebase library dependencies
       implementation("com.google.firebase:firebase-functions:20.4.0")
   }
   

   ¿Busca un módulo de biblioteca específico de Kotlin? A partir de octubre de 2023 (Firebase BoM 32.5.0) , tanto los desarrolladores de Kotlin como los de Java podrán depender del módulo de biblioteca principal (para más detalles, consulte las preguntas frecuentes sobre esta iniciativa ).

Rápido

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

C objetivo

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

API modular web

const app = initializeApp({
  projectId: '### CLOUD FUNCTIONS PROJECT ID ###',
  apiKey: '### FIREBASE API KEY ###',
  authDomain: '### FIREBASE AUTH DOMAIN ###',
});
const functions = getFunctions(app);

Kotlin+KTX

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

Java

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

Rápido

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 data = result?.data as? [String: Any], let text = data["text"] as? String {
    self.resultField.text = text
  }
}
CommentCell.swift

C objetivo

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

API con espacio de nombres web

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

API modular web

import { getFunctions, httpsCallable } from "firebase/functions";

const functions = getFunctions();
const addMessage = httpsCallable(functions, 'addMessage');
addMessage({ text: messageText })
  .then((result) => {
    // Read result of the Cloud Function.
    /** @type {any} */
    const data = result.data;
    const sanitizedMessage = data.text;
  });
fb_functions_call_add_message.js

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

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

Dart

    final result = await FirebaseFunctions.instance.httpsCallable('addMessage').call(
      {
        "text": text,
        "push": true,
      },
    );
    _response = result.data as String;

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);
}

Unidad

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;
  });
}

Rápido

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

C objetivo

if (error) {
  if ([error.domain isEqual:@"com.firebase.functions"]) {
    FIRFunctionsErrorCode code = error.code;
    NSString *message = error.localizedDescription;
    NSObject *details = error.userInfo[@"details"];
  }
  // ...
}
CloudAddCell.m

API con espacio de nombres web

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

API modular web

import { getFunctions, httpsCallable } from "firebase/functions";

const functions = getFunctions();
const addMessage = httpsCallable(functions, 'addMessage');
addMessage({ text: messageText })
  .then((result) => {
    // Read result of the Cloud Function.
    /** @type {any} */
    const data = result.data;
    const sanitizedMessage = data.text;
  })
  .catch((error) => {
    // Getting the Error details.
    const code = error.code;
    const message = error.message;
    const details = error.details;
    // ...
  });
fb_functions_call_add_message_error.js

Kotlin+KTX

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

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

Dart

try {
  final result =
      await FirebaseFunctions.instance.httpsCallable('addMessage').call();
} on FirebaseFunctionsException catch (error) {
  print(error.code);
  print(error.details);
  print(error.message);
}

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);
  // ...

Unidad

 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;
  }
});