zcash-grant-system/backend/README.md

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# Grant.io Backend
This is the backend component of [Grant.io](http://grant.io).
## Environment Setup
Run the following commands to bootstrap your environment.
Note: db setup is configured in .env when running locally. SQLLite is used by default in /tmp/
# Get python in a virtual environment
virtualenv -p python3 venv
source venv/bin/activate
# Install python requirements
pip install -r requirements/dev.txt
# Create environment variables file, edit as needed
cp .env.example .env
If you want emails to work properly, you'll both need a SendGrid secret api key in `.env`,
and if youre running Python 3.6+ on macOS, you'll need to
[fix your certificates](https://stackoverflow.com/a/42334357).
## Database Setup
Once you have installed your DBMS, run the following to create your app's
database tables and perform the initial migration
flask db migrate
flask db upgrade
## Running the App
Depending on what you need to run, there are several services that need to be started
If you just need the API, you can run
flask run
## Deployment
To deploy
export FLASK_ENV=production
export FLASK_DEBUG=0
export DATABASE_URL="<YOUR DATABASE URL>"
flask run # start the flask server
In your production environment, make sure the `FLASK_DEBUG` environment
variable is unset or is set to `0`.
## Shell
To open the interactive shell, run
flask shell
By default, you will have access to the flask `app`.
## Running Tests
To run all tests, run
flask test
## Migrations
Whenever a database migration needs to be made. Run the following commands
flask db migrate
This will generate a new migration script. Then run
flask db upgrade
To apply the migration.
For a full migration command reference, run `flask db --help`.
## Commands
To create a proposal, run
flask create_proposal "FUNDING_REQUIRED" 1 123 "My Awesome Proposal" "### Hi! I have a great proposal"
## External Services
To decode EIP-712 signed messages, a Grant.io deployed service was created `https://eip-712.herokuapp.com`.
To adjust this endpoint, simply export `AUTH_URL` with a new endpoint value:
export AUTH_URL=http://new-endpoint.com
To learn more about this auth service, you can visit the repo [here](https://github.com/grant-project/eip-712-server).
## S3 Storage Setup
1. create bucket, keep the `bucket name` and `region` handy
1. unblock public access `Amazon S3 > BUCKET_NAME > Permissions > Public access settings`
1. set the CORS configuration, replace HOST_NAME with desired domain, or `*` to allow all
Amazon S3 > BUCKET_NAME > Permissions > CORS configuration
```
<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
<AllowedOrigin>HOST_NAME</AllowedOrigin>
<AllowedMethod>GET</AllowedMethod>
<AllowedMethod>POST</AllowedMethod>
<AllowedMethod>PUT</AllowedMethod>
<AllowedHeader>*</AllowedHeader>
</CORSRule>
</CORSConfiguration>
```
1. create IAM Policy, replace `BUCKET_NAME` with correct name.
```
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:PutObject",
"s3:PutObjectAcl",
"s3:GetObject",
"s3:DeleteObject"
],
"Resource": [
"arn:aws:s3:::BUCKET_NAME/*"
]
}
]
}
```
1. create IAM user with programatic access (Access key) and assign that user the policy created above
1. copy the user's `Access key ID`, `Secret access key`, `bucket name` & `bucket region` to private `.env`, see `.env.example`