This repo is an example of how to build a QuickNode Marketplace add-on using Go and PostgreSQL

It implements the 4 provisioning routes that a partner needs to integrate with Marketplace, as well as the required Healthcheck route.

It also has support for:

• RPC methods via a POST /rpc route
• A dashboard view with Single Sign On using JSON Web Tokens (JWT).

To install and run the application locally:

1. Clone this repo.
2. Create a postgresql databse called marketplace-starter-go:

createdb marketplace-starter-go

3. Copy the .env.example to .env and update the DB_URL to one that matches your local postgresql DB.

cp .env.example .env

4. Run migrations:

go run migrate/migrate.go

5. Build the code:

go build

6. Start the web server by running the executable:

./marketplace-starter-go

The application has 4 provisioning routes protected by HTTP Basic Auth:

• POST /provision
• PUT /update
• DELETE /deactivate_endpoint
• DELETE /deprovision

It has a public healthcheck route that returns 200 if the service and the database is up and running:

• GET /healthcheck

It has a dashboard that can be accessed using Single Sign On with JSON Web Token (JWT):

• GET /dash/:id?jwt=foobar

It has an JSON RPC route:

• POST /rpc

You can use the qn-marketplace-cli tool to quickly test your add-on while developing it.

For the commands below, the --basic-auth flag is the Base64 encoding of username:password. You need to make sure to replace that with your valid credentials (as defined in your .env file).

../qn-marketplace-cli/qn-marketplace-cli healthcheck --url http://localhost:3010/healthcheck

../qn-marketplace-cli/qn-marketplace-cli pudd --base-url http://localhost:3010 --basic-auth dXNlcm5hbWU6cGFzc3dvcmQ= --quicknode-id foobar

Below, make sure that the jwt-secret matches QN_SSO_SECRET in .env file.

../qn-marketplace-cli/qn-marketplace-cli sso --url http://localhost:3010/provision --basic-auth dXNlcm5hbWU6cGFzc3dvcmQ= --jwt-secret jwt-secret --email jon@example.com --name jon --org QuickNode --quicknode-id foobar 

../qn-marketplace-cli/qn-marketplace-cli rpc --url http://localhost:3010/provision --rpc-url http://localhost:3010/rpc --rpc-method qn_test --rpc-params "[\"abc\"]" --basic-auth dXNlcm5hbWU6cGFzc3dvcmQ= --quicknode-id foobar

To obtain a basic auth string, you can use Go or your language of choice with your username and password, as such:

package main import ( "encoding/base64" "fmt" ) func main() { data := "username:password" encodedData := base64.StdEncoding.EncodeToString([]byte(data)) fmt.Println(encodedData) }

MIT