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S3 Direct Upload Demo using Spring

This is a demonstration of how to perform direct uploads to AWS's S3 service from a browser. It's mostly based upon the blog post "Direct Browser Uploading – Amazon S3, CORS, FileAPI, XHR2 and Signed PUTs", with some Java inspiration from the EvaporateJS repo.

Provisioning

There is a Terraform configuration under src/main/terraform. You can build the necessary infrastructure to run each demo as follows.

1. Change into src/main/terraform under the demo directory.

2. Set the following environment variables:

• TF_VAR_AWS_SECRET_KEY
• TF_VAR_AWS_ACCESS_KEY

3. Configure the remaining AWS variables in variables.tf.

4. Run the following to check all is well:

   terraform plan

5. Apply the config:

   terraform apply

Running the demo

1. Edit src/main/resources/application.properties to set the appropriate values.

2. Run maven with mvn.

3. Navigate to http://localhost:8080/.