CODEWITHSUNDEEP
javascriptfirebasegoogle-cloud-firestoregoogle-cloud-functions
Lauren
Lauren

Reputation: 35

Cloud Functions Firestore trigger - "Cannot read property 'eventType' of undefined"

I am trying to write a Cloud Function that validates a user's email when a new user is added to the users Firestore table. (See this documentation.) I have this TypeScript code:

exports.validateEmail = functions.firestore
.document('users/{userId}')
.onCreate(async (snapshot, context) => {
    const email = snapshot.get('email');
    console.log(email);  // Correctly logs email
    await validateEmail(email);
});

export const validateEmail = async (email: string) => {
    console.log(`Validating email: ${email}.`);  // Code doesn't get to this line
    // more code
};

However, I am getting the error:

"Cannot read property 'eventType' of undefined"

There is a similar question here although it refers to 'match' of undefined and none of the proposed solutions worked/applied for me.

I set the Cloud Function up by running firebase init in a new project directory, selecting my Firebase project, choosing Functions, opting to install dependencies with npm, and opting for TypeScript. Here are relevant parts of my package.json:

"engines": {
    "node": "10"
},
"main": "lib/index.js",
"dependencies": {
    "firebase-admin": "^9.2.0",
    "firebase-functions": "^3.11.0",
},
"devDependencies": {
    "firebase-functions-test": "^0.2.0",
    "tslint": "^5.12.0",
    "typescript": "^3.8.0"
}

And here is part of my tsconfig.json:

"compilerOptions": {
    "module": "commonjs",
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "outDir": "lib",
    "sourceMap": true,
    "strict": true,
    "target": "es2017"
}

Does anyone know what is undefined here - i.e. what is eventType a property of, and how can I fix it?

Upvotes: 1

Views: 944

Answers (1)

Doug Stevenson
Doug Stevenson

Reputation: 317362

You are redefining the validateEmail function. You should just give the utility function another name that doesn't conflict with name of the first exported Cloud Function.

Upvotes: 1

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