If I use FormData on Next.js to upload image to server I always get this error.
I tried a lot but I didn't fix this.
My code:
const changeValue = (e) => {
if (e.target.name === "avatar") {
const file = e.target.files[0];
const formData = new FormData();
formData.append("image", file, file.name);
try {
const config = {
Headers: {
"Content-Type": "multipart/form-data",
},
};
axios
.post("/api/upload", formData, config)
.then((res) => {
setAvatar(res.data);
setAvatarPreview(res.data);
})
.catch((err) => {
console.log(err.message);
});
} catch (err) {
console.log(err);
}
}
}
The default size limit for the body parser is 1mb in API routes. You can modify this value through the custom config object exported from the API route.
// /pages/api/upload.js
export const config = {
api: {
bodyParser: {
sizeLimit: '4mb' // Set desired value here
}
}
}
Note that there's a limit imposed on the API routes body size, see How to override the 4mb API Routes body size limit? for details.
Related
I am trying to use the Piniata api. Here it is:
https://docs.pinata.cloud/
The idea is to upload and pin and image using the api, into my account in Piniata.
I got this sample to upload a file in base64, using Node.js and server side.
The sample use this api call:
"https://api.pinata.cloud/pinning/pinFileToIPFS"
I am suppose to be able to do this in client side as well.
However, there is no sample of client side without using Node.js. And I can't seem to find exactly a documentation of what the api call expects.
Here is the sample I got from the Piniata support:
const { Readable } = require("stream");
const FormData = require("form-data");
const axios = require("axios");
(async () => {
try {
const base64 = "BASE64 FILE STRING";
const imgBuffer = Buffer.from(base64, "base64");
const stream = Readable.from(imgBuffer);
const data = new FormData();
data.append('file', stream, {
filepath: 'FILENAME.png'
})
const res = await axios.post("https://api.pinata.cloud/pinning/pinFileToIPFS", data, {
maxBodyLength: "Infinity",
headers: {
'Content-Type': `multipart/form-data; boundary=${data._boundary}`,
pinata_api_key: pinataApiKey,
pinata_secret_api_key: pinataSecretApiKey
}
});
console.log(res.data);
} catch (error) {
console.log(error);
}
})();
Here is my attempt to perform an upload from client side without Node.js
async function uploadFile(base64Data)
{
const url = `https://api.pinata.cloud/pinning/pinFileToIPFS`;
var status = 0;
try {
let data = new FormData();
var fileName = "FILENAME.png";
var file = new File([base64Data], fileName, {type: "image/png+base64"});
data.append(`data`, file, file.name);
data.append(`maxBodyLength`, "Infinity");
const response = await postData('POST', url, {
'Content-Type': `multipart/form-data; boundary=${data._boundary}`,
"Authorization": "Bearer Redacted"
},
data
);
} catch (error) {
console.log('error');
console.log(error);
}
}
What I get as a response from the server is 400 and the error being:
{"error":"Invalid request format."}
What am I doing wrong?
Also, it seems like when I try to use FormData .append with a stream as a sample, it doesn't work. As if it only expects a blob.
when I'm trying to call the request in front node, I'm getting error in my backend node " RequestError: Error: Invalid URI "undefined"" , it seems like backend node request is not getting the data form my frontend node request.
knowing that uploadLink already have a value and in my browser console the frontend request looks ok
my backend request code
const ThumbnailUpload = async (req, res) => {
const { Uploadlink } = req.body;
const { selectedFile } = req.body;
const clientServerOptions = {
uri: `${Uploadlink}`,
body: JSON.stringify({
name: selectedFile,
}),
method: 'PUT',
headers: {
'Content-Type': ' application/json',
Accept: 'application/vnd.vimeo.*+json;version=3.4',
Authorization: getVimeoAuthorization(),
},
};
request(clientServerOptions, function (error, response) {
if (error) {
res.send(error);
} else {
const body = JSON.parse(response.body);
res.send(body);
}
console.log(Uploadlink);
});
};
and my frontend code is
const handleSubmit = (event) => {
event.preventDefault();
const formData = new FormData();
formData.append(
'selectedFile',
new Blob([selectedFile], { type: 'image/jpg, image/png, or image/gif' }),
);
formData.append('uploadLink', uploadLink);
const headers = {
'Content-Type': 'image/jpg, image/png, or image/gif',
Accept: 'application/vnd.vimeo.*+json;version=3.4',
};
try {
axios
.post(`${backendPostPath}/thumbnail-upload`, formData, {
headers,
})
.then((response) => {
applyThumbnial();
console.log(response);
});
} catch (error) {
console.log(error);
}
};
any advise ?
change:
const { Uploadlink } = req.body;
to:
const { uploadlink } = req.body;
make variable consistent throughout the code
EDIT
also, since you're uploading a file, you need to use upload middleware before request handler, and file will be within req.file:
route.post('/thumbnail-upload', upload.single('selectedFile'), ThumbnailUpload);
//... handler..
const selectedFile = req.file;
I am working on a project (using React.js Express.js and Node.js) to convert a user uploaded image into and NFT on Ethereum blockchain and for that, I need to upload the image on an IPFS (I am using Pinata) and then use the pinata URI in the metadata to mint a new NFT. (Do let me know if I am wrong here, I am still newbie to web3)
For uploading my image onto the Pinata IPFS, I am sending the base64 string of the image from the client side to the server side and then calling the pinFileToIPFS method. This is the code of my server side file
const axios = require('axios');
const fs = require('fs');
const FormData = require('form-data');
const router = require('express').Router();
const { Readable } = require('stream');
const pinFileToIPFS = (image) => {
const url = `https://api.pinata.cloud/pinning/pinJSONToIPFS`;
const buffer = Buffer.from(image);
const stream = Readable.from(buffer);
const filename = `an-awesome-nft_${Date.now()}.png`;
stream.path = filename;
const formData = new FormData();
formData.append("file", stream);
return axios.post(url,
formData,
{
headers: {
'Content-Type': `multipart/form-data; boundary= ${formData._boundary}`,
'pinata_api_key': "*******************",
'pinata_secret_api_key': "**********************************",
}
}
).then(function (response) {
console.log("Success: ", response);
}).catch(function (error) {
console.log("Fail! ", error.response.data);
});
};
router.route('/').post((req, res) => {
const image = req.body.image;
pinFileToIPFS(image);
});
module.exports = router;
Here req.body.image contains the base64 string of the user uploaded file.
I have tried to convert the base64 string into a buffer and then convert the buffer into a readable stream (as done in the official Pianata documentation but for a localy file) and then wrap it up in FormData(), but I keep getting the following error.
data: {
error: 'This API endpoint requires valid JSON, and a JSON content-type'
}
I know the problem is with the format my image/file is being sent to the API but I can't figure out. I am still a newbie to web3 and blockchains so please help!
The recommended way of interacting with Pinata, is by using their Node.JS SDK. This SDK has a pinFileToIPFS function, allows you to upload an image to their IPFS nodes in the form of a readableStream.
A sample of this would look like
const fs = require('fs');
const readableStreamForFile = fs.createReadStream('./yourfile.png');
const options = {
pinataMetadata: {
name: MyCustomName,
keyvalues: {
customKey: 'customValue',
customKey2: 'customValue2'
}
},
pinataOptions: {
cidVersion: 0
}
};
pinata.pinFileToIPFS(readableStreamForFile, options).then((result) => {
//handle results here
console.log(result);
}).catch((err) => {
//handle error here
console.log(err);
});
However, if you are deadset on using their API endpoints and simply posting to them via axios, there is a seperate API endpoint. /pinning/pinFileToIPFS. Examples of this method can be found in their API Docs.
You may want to consider changing the following two lines and using the https://api.pinata.cloud/pinning/pinFileToIPFS endpoint instead:
const buffer = Buffer.from(image); -> const buffer = Buffer.from(image, "base64");
and
formData.append("file", stream); -> formData.append("file", stream, "fileNameOfChoiche.png);
When you are uploading an image or file to Pinata IPFS with node js. These are the steps that even don't need Pinata Node.js SDK.
1- You can upload an image from the front end with React or Next.js. Code is given below.
const uploadAttachment = async (data, token) => {
try {
return await Api.post(`${ApiRoutes.upload_attachment}`, data, {
headers: {
Authorization: "Bearer " + token, //the token is a variable which holds the token
},
});
} catch (error) {
return {
status: 404,
};
}
};
export default uploadAttachment;
2- You need to install multer to upload an image.
const multer = require("multer");
global.uploadSingleFile = multer({ dest: "uploads/" });
3- Set up your route with multer middleware and action which you are going to call.
.post(
"/attachments/upload",
uploadSingleFile.single("file"),
actions.attachments.upload.pinFileToIPFSLocal
);
4- Last step where you will hit the Pinata endpoint with Pinata API & Secret key.
pinFileToIPFSLocal: async (req, res, next) => {
try {
const url = "https://api.pinata.cloud/pinning/pinFileToIPFS";
let formData = new FormData();
formData.append("file", JSON.stringify(req.file), req.file.originalname);
axios
.post(url, formData, {
maxContentLength: -1,
headers: {
"Content-Type": `multipart/form-data; boundary=${formData._boundary}`,
pinata_api_key: process.env.PINATA_API_KEY,
pinata_secret_api_key: process.env.PINATA_API_SECRET,
path: "somename",
},
})
.then((data) => {
console.log("Result...", data);
return utils.response.response(
res,
"Upload image to ipfs.",
true,
200,
data.data
);
})
.catch((err) => {
return utils.response.response(
res,
"Image not upload to ipfs",
false,
200,
err
);
});
} catch (error) {
next(error);
}
The error message is clear. You are using url that used for json file upload. this is the url you should use to upload image
const url = `https://api.pinata.cloud/pinning/pinFileToIPFS`;
you don't have to convert buffer to a readable stream.
I am not sure if this is correct ${formData._boundary}. should be
"Content-Type": `multipart/form-data: boundary=${formData.getBoundary()}`,
There must be an error on the image parameter. A simple buffer representation of the image should work. The readable stream is not necessary.
Instead of creating the buffer, you could use middleware like express-fileupload to access the buffer representation of the file uploaded on the client-side directly.
const file = req.files;
const url = "https://api.pinata.cloud/pinning/pinFileToIPFS";
const data = new FormData();
data.append("file", file.file.data, { filepath: "anyname" });
const result = await axios.post(url, data, {
maxContentLength: -1,
headers: {
"Content-Type": `multipart/form-data; boundary=${data._boundary}`,
pinata_api_key: process.env.PINATA_API_KEY,
pinata_secret_api_key: process.env.PINATA_API_SECRET,
path: "somename",
},
});
I am trying to upload images from desktop but the error for multipart boundary not found. How to set a boundary for image uploading? This is my first time doing image uploading so please advice.
html event listener when user upload image
document.getElementById('image-file').addEventListener('change',
async (e) => {
const file = e.target.files[0]
const bodyFormData = new FormData()
bodyFormData.append('image', file)
showLoading()
const data = await uploadProductImage(bodyFormData)
hideLoading()
if (data.error) {
showMessage(data.error)
} else {
showMessage('Image Uploaded Successfully.')
console.log(data)
document.getElementById('image').value = data.image
}
})
},
api.js - posting action
export const uploadProductImage = async (bodyFormData) => {
const options = {
method: 'POST',
body: bodyFormData,
headers: {
'Content-Type': 'multipart/form-data',
},
}
try {
const response = await fetch(`${apiUrl}/api/uploads`, options)
const json = await response.json()
if (response.status !== 201) {
throw new Error(json.message)
}
return json
} catch (err) {
console.log('Error in upload image', err.message)
return { error: err.message }
}
}
uploadroute.js - for uploading image
import express from 'express'
import multer from 'multer'
const storage = multer.diskStorage({
destination(req, file, cb) {
cb(null, 'uploads/')
},
filename(req, file, cb) {
cb(null, `${Date.now()}.png`)
},
})
const upload = multer({ storage })
const router = express.Router()
router.post('/', upload.single('image'), (req, res) => {
res.status(201).send({ image: `/${req.file.path}` })
})
export default router
When you're sending a form with fetch in the frontend, don't set Content-Type header yourself. If you do, it won't have the form boundary and the multipart/form-data request will be parsed incorrectly in the backend.
You can omit the header because the browser will set it for you, which includes a unique boundary. For example:
Your header: Content-Type=multipart/form-data;
Browser's header: Content-Type=multipart/form-data; boundary=------WebKitFormBoundaryg7okV37G7Gfll2hf--
In your case:
const options = {
method: 'POST',
body: bodyFormData,
}
const response = await fetch(`${apiUrl}/api/uploads`, options)
I want to upload a jpg to a link with axios but failed.
I doubt that is there sth wrong with my form data, I dont know how to check that.
I do it in this way:
let form = new FormData();
form.append('screenshot',fs.createReadStream(`xxx.jpg`));
screenshot is the key while the next one is the jpg that I want to post.
Here is my post method:
const config = { headers: { 'Content-Type': 'multipart/form-data' } };
yield axios.post(url,form,config).then....catch....
I have successfully upload the jpg through postman:
How can I do the same thing with NodeJS in VScode?
The error message is very long but main pt. should be response data: { error: 'Multipart: Boundary not found' }.
Here is some content in sever:
const upload = multer({
//dest: 'screenshots',
limits: {
fileSize: 2000000 //number in bytes
},
fileFilter(req, file, cb) {
if (!file.originalname.match(/\.(png|jpg|jpeg)$/)) {
return cb(new Error('File must be of png/jpg/jpeg type.'))
}
cb(undefined, true)
}
router.post('/upload/:id/screenshot', findCasebyID, upload.single('screenshot'), async (req, res) => {
try {
req.case.screenshot = req.file.buffer
await req.case.save()
res.send()
} catch (e) {
res.status(409).send(e)
}...
I managed to solve it with this:
const config = { headers: { 'Content-Type': `multipart/form-data; boundary=${form._boundary}`, } };