How to trigger file download from post request chalice

 · Making a POST request#. The general form of the curl command for making a POST request is as follows: curl -X POST [options] [URL] Copy. The -X option specifies which HTTP request method will be used when communicating with the remote server. The type of the request body is indicated by its Content-Type header.  · To trigger a file download on a button click we will use a custom function or HTML 5 download attribute. Approach 1: Using Download attribute. The download attribute simply uses an anchor tag to prepare the location of the file that needs to be downloaded. The name of the file can be set using the attribute value name, if not provided then the Estimated Reading Time: 2 mins. Chalice is a framework for writing serverless apps in python. It allows you to quickly create and deploy applications that use AWS Lambda. It provides: A command line tool for creating, deploying, and managing your app. A decorator based API for integrating with Amazon API Gateway, Amazon S3, Amazon SNS, Amazon SQS, and other AWS services.

You can invoke Cloud Functions with an HTTP request using the POST, PUT, GET, DELETE, and OPTIONS HTTP methods. To create an HTTP endpoint for your function, specify --trigger-http as the trigger type when deploying your function. From the caller's perspective, HTTP invocations are synchronous, meaning that the result of the function execution will be returned in the response to the HTTP request. Here Mudassar Ahmed Khan has explained with an example, how to download file in AJAX Response (Success) using jQuery. The file will be downloaded as BLOB using jQuery AJAX and XmlHttpRequest (XHR) request and then the file will be downloaded using the Response inside the Success event handler of jQuery AJAX function. TAGs: Excel, AJAX, jQuery, Word, PDF. The download attribute is used to inform the browser to download the URL instead of navigating to it — hence a prompt shows up, requesting that the user saves the file. The download attribute can be given a valid filename as its value. However, the user can still modify the filename in the save prompt that pops-up.

Making a POST request#. The general form of the curl command for making a POST request is as follows: curl -X POST [options] [URL] Copy. The -X option specifies which HTTP request method will be used when communicating with the remote server. The type of the request body is indicated by its Content-Type header. When we invoke the POST Request and send a JSON file through the API containing the base64 code of the image and the images’s name, it triggers the Lambda Function which then uploads the file in. The HTTP trigger lets you invoke a function with an HTTP request. You can use an HTTP trigger to build serverless APIs and respond to webhooks. The default return value for an HTTP-triggered function is: HTTP No Content with an empty body in Functions 2.x and higher. HTTP OK with an empty body in Functions 1.x.