AWS provides various options to host data and multiple configuration possibilities. Publishers are required to do their research and decide what would be the right choice. The below steps provide one of the possible ways to host data using an AWS S3 bucket and publish it on Ocean Marketplace.
**Prerequisite**
Create an account on [AWS](https://aws.amazon.com/s3/). Users might also be asked to provide payment details and billing addresses that are out of this tutorial's scope.
**Step 1 - Create a storage account**
**Go to AWS portal**
Go to the AWS portal for S3: https://aws.amazon.com/s3/ and select from the upper right corner `Create an AWS account` as shown below.
The file is an example used in multiple Ocean repositories, and it can be found [here](https://raw.githubusercontent.com/oceanprotocol/c2d-examples/main/branin_and_gpr/branin.arff).
By default, the permissions of accessing the file from the S3 bucket are set to private. To publish an asset on the market, the S3 URL needs to be public. This step shows how to set up access control policies to grant permissions to others.
**Editing permissions**
Go to the `Permissions` tab and select `Edit` and then uncheck `Block all public access` boxes to give everyone read access to the object and click `Save`.
If editing the permissions is unavailable, modify the `Object Ownership` by enabling the ACLs as shown below.
**Step 4 - Get the S3 Bucket Link & Publish Asset on Market**
Now that the S3 endpoint has public access, the asset will be hosted successfully.
Go to [Ocean Market](https://market.oceanprotocol.com/publish/1) to complete the form for asset creation.
Copy the `Object URL` that can be found at `Object Overview` from the AWS S3 bucket and paste it into the `File` field from the form found at [step 2](https://market.oceanprotocol.com/publish/2) as it is illustrated below.
