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Make docstrings consistent; add aliasing to make different event types clear #692

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merged 3 commits into from
Jul 23, 2018
Merged

Make docstrings consistent; add aliasing to make different event types clear #692

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2e7ac47
Make docstrings consistent; add aliasing
stew-r Jul 20, 2018
2e0a389
Merge branch 'master' into patch-1
stew-r Jul 23, 2018
43cf271
Fix spacing issues, add `context` parameter to helloBackground
stew-r Jul 23, 2018
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53 changes: 29 additions & 24 deletions functions/node8/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,8 +18,8 @@
* Background Cloud Function that only executes within a certain time
* period after the triggering event to avoid infinite retry loops.
*
* @param {object} event The Cloud Functions event payload.
* @param {function} context Information about the event.
* @param {object} data The event payload.
* @param {object} context The event metadata.
*/
exports.avoidInfiniteRetries = (data, context) => {
const eventAge = Date.now() - Date.parse(context.timestamp);
Expand All @@ -41,8 +41,8 @@ exports.avoidInfiniteRetries = (data, context) => {
* Background Cloud Function that demonstrates
* how to toggle retries using a promise
*
* @param {object} data The Cloud Functions event payload.
* @param {function} context The Cloud Functions metadata.
* @param {object} data The event payload.
* @param {object} context The event metadata.
*/
exports.retryPromise = (data, context) => {
const tryAgain = !!data.retry;
Expand All @@ -59,9 +59,10 @@ exports.retryPromise = (data, context) => {
/**
* Background Cloud Function.
*
* @param {object} data Data passed to the Cloud Function.
* @param {object} data The event payload.
* @param {object} context The event metadata.
*/
exports.helloBackground = (data) => {
exports.helloBackground = (data, context) => {
return `Hello ${data.name || 'World'}!`;
};
// [END functions_helloworld_background_node8]
Expand All @@ -72,11 +73,12 @@ exports.helloBackground = (data) => {
* This function is exported by index.js, and executed when
* the trigger topic receives a message.
*
* @param {object} data The Cloud Functions event payload.
* @param {object} context The Cloud Functions metadata.
* @param {object} data The event payload.
* @param {object} context The event metadata.
*/
exports.helloPubSub = (data) => {
const name = data.data ? Buffer.from(data.data, 'base64').toString() : 'World';
exports.helloPubSub = (data, context) => {
const pubSubMessage = data;
const name = pubSubMessage.data ? Buffer.from(pubSubMessage.data, 'base64').toString() : 'World';

console.log(`Hello, ${name}!`);
};
Expand All @@ -86,17 +88,19 @@ exports.helloPubSub = (data) => {
/**
* Background Cloud Function to be triggered by Cloud Storage.
*
* @param {object} data The Cloud Functions event payload.
* @param {object} data The event payload.
* @param {object} context The event metadata.
*/
exports.helloGCS = (data) => {
if (data.resourceState === 'not_exists') {
console.log(`File ${data.name} deleted.`);
} else if (data.metageneration === '1') {
exports.helloGCS = (data, context) => {
const file = data;
if (file.resourceState === 'not_exists') {
console.log(`File ${file.name} deleted.`);
} else if (file.metageneration === '1') {
// metageneration attribute is updated on metadata changes.
// on create value is 1
console.log(`File ${data.name} uploaded.`);
console.log(`File ${file.name} uploaded.`);
} else {
console.log(`File ${data.name} metadata updated.`);
console.log(`File ${file.name} metadata updated.`);
}
};
// [END functions_helloworld_storage_node8]
Expand All @@ -105,16 +109,17 @@ exports.helloGCS = (data) => {
/**
* Generic background Cloud Function to be triggered by Cloud Storage.
*
* @param {object} data The Cloud Functions event payload.
* @param {object} context The Cloud Functions event metadata.
* @param {object} data The event payload.
* @param {object} context The event metadata.
*/
exports.helloGCSGeneric = (data, context) => {
const file = data;
console.log(` Event ${context.eventId}`);
console.log(` Event Type: ${context.eventType}`);
console.log(` Bucket: ${data.bucket}`);
console.log(` File: ${data.name}`);
console.log(` Metageneration: ${data.metageneration}`);
console.log(` Created: ${data.timeCreated}`);
console.log(` Updated: ${data.updated}`);
console.log(` Bucket: ${file.bucket}`);
console.log(` File: ${file.name}`);
console.log(` Metageneration: ${file.metageneration}`);
console.log(` Created: ${file.timeCreated}`);
console.log(` Updated: ${file.updated}`);
};
// [END functions_helloworld_storage_generic_node8]