Generate Presigned Url To Upload Image (IPFS)
Request
In order to get a presigned url to upload image to IPFS, SDK provides you with a generatePresignedImage endpoint to do so
try {
const apiProtocol = nft2Client.getAPIService();
const presignedList = await apiProtocol.generatePresignedImage({
files: [
{
fileName: 'file1.png',
mimeType: 'image/png',
},
{
fileName: 'file2.jpeg',
mimeType: 'image/jpeg',
},
...
]
});
console.log(presignedList)
} catch (e) {
console.error(e);
}Parameters
- Params type:
PresignImageData files(Array): Array of presign image metadata (fileName and mimeType).
❗
To ensure IPFS service performance and avoid rate limit when upload files, size of array files must be <= 50.
❗
Image mimeType only support in ["image/png", "image/jpeg", "image/svg+xml"]
Response
{
urls: [
"https://nft2-protocol.s3.filebase.com/file1-xxx.png?SIGNED_DATA&x-id=PutObject",
"https://nft2-protocol.s3.filebase.com/file2-xxx.jpeg?SIGNED_DATA&x-id=PutObject",
...
];
}Using presigned url to upload image to IPFS
try {
const presignedUrl = "..." // get from generatePresignedImage
const file = "..." // file object or data arraybuffer
const response = await axios.put(presignedUrl, file, {
headers: {
"Content-Type": file.type || "image/png", // mimeType
},
})
const imageData = {
image_name: file.name,
image_cid: response.headers?.["x-amz-meta-cid"], // CID of image on IPFS
}
console.log(imageData)
} catch (e) {
console.error(e);
}