89 lines
2.7 KiB
Markdown
89 lines
2.7 KiB
Markdown
---
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id: bd7158d8c443edefaeb5bd0f
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title: File Metadata Microservice
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challengeType: 4
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forumTopicId: 301506
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dashedName: file-metadata-microservice
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---
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# --description--
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Build a full stack JavaScript app that is functionally similar to this: <https://file-metadata-microservice.freecodecamp.rocks/>. Working on this project will involve you writing your code using one of the following methods:
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- Clone [this GitHub repo](https://github.com/freeCodeCamp/boilerplate-project-filemetadata/) and complete your project locally.
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- Use [our Replit starter project](https://replit.com/github/freeCodeCamp/boilerplate-project-filemetadata) to complete your project.
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- Use a site builder of your choice to complete the project. Be sure to incorporate all the files from our GitHub repo.
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When you are done, make sure a working demo of your project is hosted somewhere public. Then submit the URL to it in the `Solution Link` field. Optionally, also submit a link to your project's source code in the `GitHub Link` field.
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# --instructions--
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**HINT:** You can use the `multer` npm package to handle file uploading.
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# --hints--
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You should provide your own project, not the example URL.
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```js
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(getUserInput) => {
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assert(
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!/.*\/file-metadata-microservice\.freecodecamp\.rocks/.test(
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getUserInput('url')
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)
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);
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};
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```
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You can submit a form that includes a file upload.
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```js
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async (getUserInput) => {
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const site = await fetch(getUserInput('url'));
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const data = await site.text();
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const doc = new DOMParser().parseFromString(data, 'text/html');
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assert(doc.querySelector('input[type="file"]'));
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};
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```
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The form file input field has the `name` attribute set to `upfile`.
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```js
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async (getUserInput) => {
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const site = await fetch(getUserInput('url'));
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const data = await site.text();
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const doc = new DOMParser().parseFromString(data, 'text/html');
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assert(doc.querySelector('input[name="upfile"]'));
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};
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```
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When you submit a file, you receive the file `name`, `type`, and `size` in bytes within the JSON response.
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```js
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async (getUserInput) => {
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const formData = new FormData();
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const fileData = await fetch(
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'https://cdn.freecodecamp.org/weather-icons/01d.png'
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);
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const file = await fileData.blob();
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formData.append('upfile', file, 'icon');
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const data = await fetch(getUserInput('url') + '/api/fileanalyse', {
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method: 'POST',
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body: formData
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});
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const parsed = await data.json();
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assert.property(parsed, 'size');
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assert.equal(parsed.name, 'icon');
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assert.equal(parsed.type, 'image/png');
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};
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```
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# --solutions--
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```js
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/**
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Backend challenges don't need solutions,
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because they would need to be tested against a full working project.
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Please check our contributing guidelines to learn more.
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*/
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```
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