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how to warm a workflow
This topic was automatically generated from Slack. You can find the original thread here.
how to warm a workflow
To keep a workflow “warm” and avoid cold starts, you can follow these two steps: 1. Create a scheduled workflow that runs roughly every 5 minutes, making an HTTP request to your HTTP-triggered workflow on the /warm
path. Here’s a Node.js example: import { axios } from "@pipedream/platform"; export default defineComponent({ props: { url: { type: 'string', label: 'Webhook URL', description: 'The Webhook URL of workflow to keep warm', } }, async run({ steps, $ }) { return (await axios($, { method: "GET", url: `${this.url}/warm`, })).data; }, });
2. In your original workflow, add a step at the top that ends the workflow early if it receives a request on the /warm
path. Here’s a Node.js example: export default defineComponent({ async run({ steps, $ }) { const path = (new URL(steps.trigger.event.url)).pathname; if (path === "/warm") { await $.respond({ status: 200, body: { warmed: true, } }); return $.flow.exit("Warming request, ending early"); } }, });
Don’t forget to allow your webhook to return a custom response in the trigger settings. This will allow the /warm
endpoint to return a success message to the scheduled pinging workflow.
is there any caching mechanism allowed in pipedream
Pipedream does not have a built-in caching mechanism. However, you can use the key-value store to cache data within your workflows. You can use the $store
object to set, get, and delete data. Here’s an example: ```
// Set a value in the store await $store.set(“key”, “value”); // Get a value from the store const value = await $store.get(“key”); // Delete a value from the store await $store.delete(“key”);
is this store same as datastore?
Yes, the “store” I mentioned in my previous response refers to the same concept as “datastore” in Pipedream. They are key-value stores that allow you to store and retrieve data within your workflows. You can use the $store
object to set, get, and delete data in the datastore.
can you give me some example
Sure, here’s an example of a Pipedream component that makes an HTTP GET request to a given URL and returns the response data: import { axios } from "@pipedream/platform"; export default defineComponent({ props: { url: { type: "string", label: "URL", description: "The URL to make the HTTP GET request", }, }, async run({ steps, $ }) { const response = await axios($, { method: "GET", url: this.url, }); return response; }, });
In this example, the component has a url
prop that the user can input. The run
method uses the axios
function from the @pipedream/platform
package to make the HTTP GET request and returns the response data.