Node Js Download File From Url Axios
Sunta Sharp
It has something to do with my tsconfig.json. If I remove this file, axios is known. If I restore this file, the error comes back in VS Code. I know for Lodash package there is a Lodash types ( @types/lodash) to make lodash compatible with typescript. Is there an equivelent for axios?
It is not true! You can post data with axios using nodejs. I have done it. The problem is, if you use PHP on the server side, there is a pitfall you need to be aware of. Axios posts data in JSON format (Content-Type: application/json) PHP's standard $_POST array is not populated when this content type is used. So it will always be empty. In order to get post parameters sent via a json request, you need to use file_get_contents(" ://input") .
If you use axios.post then data is your body object where you want to put all your parameters.
In your code you are adding the request payload all in a property called body, I suppose your endpoint is expecting something like prop1:"", prop2:"" not body: prop1:"", prop2:""
Before uploading a file with axios, you first need to create a form and append the file to it. Axios can be used both in the frontend as backend and the library doesn't differentiate between the two. Therefore, sending a file with axios in Node.js is similar to sending a file with axios in the browser.
If you're familiar with multer, it uses MemoryStorage by default which is essentially storing the files in memory as a Buffer. Reading a file from disk with fs.readFile() also gives you the file stored as a Buffer.
You can also append a file as a stream to the form. This is useful when, for example, the file is fetched from an external resource. You can then proxy the file directly to another API without storing it locally.
We've looked at different ways to append a file to a form, either as a Buffer or a Stream. Below is a complete example that reads a file from disk into a Buffer and uploads it to an external API with axios.
Our goal in this tutorial is to build a Hacker News scraper using the Axios and Cheerio Node.js libraries to extract the rank, link, title, author, and points from each article displayed on the first page of the website.
First, let's create a new directory hacker-news-scraper to house our scraper, then move into it and create a new file named main.js. We can either do it manually or straight from the terminal by using the following commands:
Since we are already in the package.json file, let's also add a script to run our scraper by using the command npm start. To do that, we just have to include the string "start": "node main.js" to the existing "scripts" object.
One of the ways we can avoid this is by passing custom headers to the HTTP request we made earlier using Axios, thus ensuring that the User-Agent used matches the one from the machine sending the request.
Now with that basic understanding, we can look at how to construct a GraphQL request in this post. If you have ever done any REST API calls from your frontend using fetch or axios in the past, this should be very quick to grok.
Inside the bin directory, add the following code to a new file named auth.js. The code in auth.js acquires an access token from the Microsoft identity platform for including in Microsoft Graph API requests.
In the code snippet above, we first create a configuration object (msalConfig) and pass it to initialize an MSAL ConfidentialClientApplication. Then we create a method for acquiring tokens via client credentials and finally expose this module to be accessed by main.js. The configuration parameters in this module are drawn from an environment file, which we will create in the next step.
It was awesome because working with rawXMLHttpRequestto make HTTP requests was not very fun. His library, which he later calledaxios is a brilliant work and functionedboth in NodeJS and the Browser which I remember him being really excited about(and I was too).
It's been almost six years now and if you're reading this chances are you've atleast heard of it and very likely used it in the past or are using it now. Ithas an enormous and growing number ofdownloads on npm. And while Matt's long movedon from the project, it is still actively maintained.
However, the built-in window.fetch API doesn't handle errors in the same wayaxios does. By default, window.fetch will only reject a promise if theactual request itself failed (network error), not if it returned a "Client errorresponse". Luckily, the Response object hasan ok propertywhich we can use to reject the promise in our wrapper:
Axios does a LOT for you and if you're happy with it then feel free to keepusing it (I use it for node projects because it's just great and I haven't beenmotivated to investigate the alternatives that I'm sure you're dying to tell meall about right now). But for the browser, I think that you'll often be betteroff making your own simple wrapper around fetch that does exactly what youneed it to do and no more. Anything you can think of for an axios interceptor ortransform to do, you can make your wrapper do it. If you don't want it appliedto all requests, then you can make a wrapper for your wrapper.
As you can see above, these proxies do not need auth. They are free and open. So, the username and password section is dropped from the httpsAgent line when setting up the proxy.
Just to do a little math and get a sense of what things are like, using the network tab of your browser, you can look at the size of the response from the website you are trying to scrape.
You will be asked to make a purchase. Once you do the same, you will be able to configure your proxies, username, and password and also set a country from where you will be assigned an IP address. It seems the password changes on basis of the country.
Using the destination in a nodejs applications requires a binding to a destination service. If the destination is pointing to an on premise system we have to connect to this service via the cloud connector. To call a service over the cloud connector we have to adapt our proxy settings in our http client. To read the configuration of the proxy and the authentication information, we need to bind our application to a connectivity service.
To keep the use of axios as close as possible to the standard. I decided to create an axios instance for each destination. For each destination a request interceptor will override the data in the AxiosRequestConfig object with the configuration in the destination before starting the request.
As you can see we deleted the baseUrl and auth property from our call. These properties will be read from the destination and injected by the sap-cf-axios library. If it is an onpremise service the proxy settings will also be injected by the library.
nothing fancy here because there is nothing happening with our request. It is send from postman to the service, so what we put in postman we will see in the response of our service. But things will get interesting when we use sap-cf-axios in cloud foundry to call our local service. First we have to configure the service in cloud connector so we can access it in cloud foundry.
another remark: the forwarded JWT token does not contain the properties suggested (mail, name, display_name and login_name). When you configure the client certificate template, you have to change them manually with properties from the forwarded JWT token (e.g. user_name, email)
I am using the library for long time now,it was working fine till yesterday and it is giving the new issue from today. There was no change in the configuration but not sure why its suddenly giving this error.
Same Error and I am not able to use it ? I think its not only the method which we pass ,since there is a change in the version of the AXIOS library it is throwing error ,because it is not fetching the CSRF token. Axios verison 0.19.0 was fine. Yesterday they updated with 0.19.1 and from then it stopped working.
My concern is with XSUAA having breaking changes every so often i think it is better to do an OAuth call with the UAA to get the token and then add it to the authorization header rather than getting the token from request headers.
I try to connect my nodeJS application to my system backend , i prepare the service on the backend, the cloud connector , the app-router , the nodejs application(with services uaa, destination , connectivity) and i create the destination on scp , i deploy my application on scp but when i execute i find always Gatewaytimed out. and i tested the backend service with a simple approuter and it work correctly and i find the result on the browser.
Every once in a while we need to test API requests. Axios is one of the most popular JavaScript libraries to fetch data from remote APIs. Hence, we will use Axios for our data fetching example -- however, the following tutorial should make it possible to exchange axios with any other data fetching library.
In this data fetching example with axios, we provide a query parameter to the function to search on Hacker News via its API. If the request is successful, we will return the response. If the request runs into a network error, the function will throw an error which we would have to capture outside of it.
It is a very simple Express API. You start by requiring express and instantiating it. Then you set the port to be taken from the environment variable PORT or if it is not set fallback to 3000. After that, you require the setTimeout from the timers/promises package which is available from Node.js version 15+. It will be used to wait for X milliseconds, you can read more about wait in JavaScript if that is interesting to you.
You first started by requiring Axios. In lines 3-15 you have overloaded the console.log function to include the time elapsed between calls. For instance, if the first console.log is called and the next console.log is called after one second it will append the first one with 0.00 and the second one with 1.00. It has been taken from this old gist.
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