Axios Get Example

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Axios POST with body

Axios is a promise-based HTTP Client Javascript library for Node.js and Browser. In this tutorial, we will create examples that use Axios to make Get/Post/Put/Delete request.

The final section shows a simple Axios HTTP Client to interact with Rest API. Related Posts: – Axios File Upload example – Axios Interceptors tutorial with Refresh Token example – Javascript Fetch API tutorial: Get/Post/Put/Delete example – React Axios example – Get/Post/Put/Delete with Rest API – React Query and Axios example with Rest API – Vue Axios example – Get/Post/Put/Delete with Rest API.

Axios can run in the Node.js and Browser with the same codebase. – On the server-side it uses the native Node.js http module – On the client-side (browser) it uses XMLHttpRequests. Additionally, there are important features that you should know:.

Supports the Promise API. Intercept request and response (Axios Interceptors tutorial).

GET request using axios with async/await

  • Transform request and response data.
  • Cancel requests. Automatic transforms for JSON data.
  • Client side support for protecting against XSRF.

Axios PUT with headers

(from https://github.com/axios/axios#features). We can add Axios to our project/code with one of following simple ways:.

The response for a Axios request contains:. data: parsed response body provided by the server. status: HTTP status code.

statusText: HTTP status message. headers: HTTP headers (lower case). config: the request config that was provided to axios. request: the last client request instance that generated this response.

Axios Response Object has data field that contains the parsed response body. We can use then or await to receive the response body as follows:. We use catch() for handling errors. If you want to use async-await, just wrap the axios call with try/catch block.

Install Axios

You can use the params config option to set query string params. And this is equivalent:. To send Axios GET request with Headers, we pass an option object with headers property. We can merge params and headers in a Axios GET request like this.

Axios multiple requests

You can perform an Axios POST object request with body as second parameter. To send Axios POST request with Headers, we pass an option object with headers property right after the body.

You can perform an Axios PUT json object request with body as second parameter.

To send Axios PUT request with Headers, we pass an option object with headers property right after the body. To send Axios DELETE request with Headers, we pass an option object with headers property.

We can create a new instance of axios using axios.create(config) method. We will build a HTTP Client to make CRUD requests to Rest API in that:. Axios GET request: get all Tutorials, get Tutorial by Id, find Tutorial by title.

Axios POST request: create new Tutorial. Axios PUT request: update an existing Tutorial.

Axios DELETE request: delete a Tutorial, delete all Tutorials. This Axios Client works with the following Web API:.

You can find step by step to build a Server like this in one of these posts:. Remember that you need to configure CORS: Access-Control-Allow-Origin: *. It helps the REST APIs can be accessed by any origin.

Axios Features

– Create a Tutorial using axios POST request:. – Retrieve all Tutorials using axios GET request:. – Retrieve a Tutorial by Id using axios GET request:. – Find Tutorials by title using axios GET request with params:.

– Update a Tutorial using axios PUT request:. – Delete Tutorial using axios DELETE request:.

With this Axios tutorial, you’ve known many ways to make GET/POST/PUT/DELETE request using Axios (with headers, params, body…).

You can also use it in: – React App: React Axios example – Get/Post/Put/Delete with Rest API Or: React Query and Axios example with Rest API.

– Vue App: Vue Axios example – Get/Post/Put/Delete with Rest API.

Furthermore, you can apply it in one of following React/Vue CRUD applications:.

If you want to use Fetch API instead, please visit:Javascript Fetch API tutorial: Get/ Post/ Put/ Delete example. Happy Learning!

last modified October 18, 2021. Axios tutorial shows how to generage requests in JavaScript using Axios clientlibrary.

Conclusion

Check the JavaScript fetch tutorialfor an alternative way of creating requests in JavaScript. Axios is a promise based HTTP client for the browser and Node.js.Axios makes it easy to send asynchronous HTTP requests to REST endpoints andperform CRUD operations.

It can be used in plain JavaScript or with a librarysuch as Vue or React. In this tutorial we work with Axios in a Node.js application. First, we install Axios. We use Node.js version 12.20.1. We initiate a new Node.js application. We install Axios with npm i axios command.

There are multiple methods for creating requests in axios. These are basic methods for generating requests in axios.

These are method aliases, created for convenience. When we send a request to a server, it returns a response. The Axios response objectconsists of:.

data - the payload returned from the server. status - the HTTP code returned from the server.

statusText - the HTTP status message returned by the server. headers - headers sent by server. config - the original request configuration.

request - the request object. In the first example, we create a simple GET request.

We use callbacks. We generate a simple GET request and show the output. The Axios library is included. With get, we send a GET request. We output the data from theresponse. The data is HTML code. The following example creates the same request.

  • This timewe use async/await syntax. The example creates a simple GET request utilizing async/awaitsyntax. The get, post, or delete methods areconvenience methods for the basic axios API: axios(config)and axios(url, config).
  • The example creates a GET request to webcode.me. We specify the details of the request in the configuration object. A HEAD request is a GET request without a message body.
  • In Axios, a HEADrequest is created with head. The example shows the status, server name, response date froma response generated with a HEAD request.
  • HTTP response status codes indicate whether a specific HTTP request has beensuccessfully completed. Responses are grouped in five classes:.

Informational responses (100–199). Successful responses (200–299).

Redirects (300–399). Client errors (400–499). Server errors (500–599). We get the status code from the status property of the response. In the following example, we send a custom header.

The example sends a customized header. The custom data is added to the headers attribute of theconfiguration object. We verify the sent data. In the following example, we append some query parameters to the URL.

We use the URLSearchParams of the url module totransform the JSON object into suitable URL query form.

Many online services contain public APIs. In the following example,we generate a request to a Github API. In the example, we get the number of followers and location of a user. A POST request is created with post method. Axios automatically serializes JavaScript objects to JSON when passed to the post function as the second parameter; we do not need to serializePOST bodies to JSON.

The example creates a POST request to an online testing service. The payload is the second parameter to the post function. In the following example, we generate a POST request with form data.

We install the form-data module. With application/x-www-form-urlencoded the data is sent in the body of therequest; the keys and values are encoded in key-value tuples separated by'&', with a '=' between the key and the value.

To produce form data in the appropriate format, we use the FormData object. The following example shows how to download an image with Axios.

The example retrieves an image from an online service, which keeps images of dogs.

Posting a user

We include axios and fs modules. We specify the response type in the configuration object.

We get the image. With the help of the fs module, we save the image to disk.

We can create multiple requests in one shot with Axios. The example generates async requests to the given list of urls. It printsthe web site's url, server name, and status code.

The axios.get makes an async request and returns a promise.

We collect all promises with Promise.All.

Axios GET request with callbacks

The method resolves afterall of the given promises have either fulfilled or rejected. JSON Server is a wonderful tool, which allows us to create fake REST APIseasily.

We install json-server. This is our test data. The JSON server is started with the json-server, which we have installed globally.

The --watch option is used to specify the data for the server. With the curl command, we get the user with Id 2.

We post a new user. The example posts a new user. The post parameters are passed as the second parameter to the postmethod. We get users from the test server. This program retrieves all users from our test server.

A resource is deleted with delete. The example deletes the user with Id 2.

In this tutorial, we have worked with JavaScript Axios module. List all JavaScript tutorials.

Below is a quick set of examples to show how to send HTTP GET requests to an API using the axios HTTP client which is available on npm.

Other HTTP examples available:. Axios: POST, PUT, DELETE. Fetch: GET, POST, PUT, DELETE.

React + Axios: GET, POST, PUT, DELETE. React + Fetch: GET, POST, PUT, DELETE. Vue + Axios: GET, POST.

Vue + Fetch: GET, POST. Angular: GET, POST, PUT, DELETE. Blazor WebAssembly:GET, POST. With the npm CLI: npm install axios. With the yarn CLI: yarn add axios.

This sends an HTTP GET request to the npm api to search for all axios packages using the query q=axios, then writes the total from the response to the #get-request .result element so it's displayed on the page.

Example Axios GET request at https://stackblitz.com/edit/axios-http-get-request-examples?file=get-request.js.

This sends the same GET request with axios, but this version uses an async function and the await javascript expression to wait for the promises to return (instead of using the promise then() method as above).

Axios DELETE request

Example Axios GET request at https://stackblitz.com/edit/axios-http-get-request-examples?file=get-request-async-await.js. This sends a GET request with axios to an invalid url on the npm api then writes the error message to the parent of the #get-request-error-handling .result element and logs the error to the console.

Example Axios GET request at https://stackblitz.com/edit/axios-http-get-request-examples?file=get-request-error-handling.js.

This sends the same GET request again using axios with a couple of headers set, the HTTP Authorization header and a custom header My-Custom-Header. Example Axios GET request at https://stackblitz.com/edit/axios-http-get-request-examples?file=get-request-set-headers.js.

The easiest way to make a GET request with Axios is theaxios.get() function. The first parameter to axios.get() is the URL.

Axios Response Body

For example, below is how you make a GET requestto the URL httpbin.org/get?answer=42:. The 2nd parameter to axios.get() is the Axios options.For example, you don't have to serialize the query string ?answer=42 yourself.

Axios will serializeoptions.params and add it to the query string for you.

The below request is equivalent:. The options parameter is also how you set any request headers. For example,below is how you set the Test-Header header on a GET request. Below is a quick set of examples to show how to send HTTP GET requests from React to a backend API using the axios HTTP client which is available on npm.

Other HTTP examples available:. React + Axios: POST, PUT, DELETE. React + Fetch: GET, POST, PUT, DELETE. Vue + Axios: GET, POST. Vue + Fetch: GET, POST. Angular: GET, POST, PUT, DELETE.

Blazor WebAssembly:GET, POST. Axios: GET, POST, PUT, DELETE. Fetch: GET, POST, PUT, DELETE. With the npm CLI: npm install axios.

With the yarn CLI: yarn add axios. This sends an HTTP GET request from React to the npm api to search for all react packages using the query q=react, then assigns the total returned in the response to the component state property totalReactPackages so it can be displayed in the render() method.

Example React component at https://stackblitz.com/edit/react-http-get-request-examples-axios?file=App/GetRequest.jsx. This sends the same GET request from React using axios, but this version uses React hooks from a function component instead of lifecycle methods from a traditional React class component.

The useEffect React hook replaces the componentDidMount lifecycle method to make the HTTP GET request when the component loads.

The second parameter to the useEffect React hook is an array of dependencies that determines when the hook is run, passing an empty array causes the hook to only be run once when the component first loads, like the componentDidMount lifecyle method in a class component.

For more info on React hooks see https://reactjs.org/docs/hooks-intro.html. Example React hooks component at https://stackblitz.com/edit/react-http-get-request-examples-axios?file=App/GetRequestHooks.jsx.

This sends the same GET request from React using axios, but this version uses an async function and the await javascript expression to wait for the promises to return (instead of using the promise then() method as above).

Axios Error handling

Example React component at https://stackblitz.com/edit/react-http-get-request-examples-axios?file=App/GetRequestAsyncAwait.jsx. This sends a GET request from React using axios to an invalid url on the npm api then assigns the error message to the errorMessage component state property and logs the error to the console.

Example React component at https://stackblitz.com/edit/react-http-get-request-examples-axios?file=App/GetRequestErrorHandling.jsx.

This sends the same GET request again from React using axios with a couple of headers set, the HTTP Authorization header and a custom header My-Custom-Header.

Axios POST FORM request

Example React component at https://stackblitz.com/edit/react-http-get-request-examples-axios?file=App/GetRequestSetHeaders.jsx.

Axios download image

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