combine demo & readme, erc20-watcher

docs/README.md

@@ -1,3 +1,79 @@
 # Watcher Documentation
 
-## Coming Soon
+## Setting up without Stack Orchestrator
+
+- requries the three services
+- setup postgres (incl. PG crypto)
+- then demo each watcher
+
+## Setup
+
+* Create a postgres12 database for the watcher:
+
+  ```bash
+  sudo su - postgres
+
+  # If database already exists
+  # dropdb erc20-watcher
+
+  createdb erc20-watcher
+  ```
+
+Create a postgres12 database for the job queue:
+
+```
+sudo su - postgres
+createdb erc20-watcher-job-queue
+```
+
+Enable the `pgcrypto` extension on the job queue database (https://github.com/timgit/pg-boss/blob/master/docs/usage.md#intro).
+
+Example:
+
+```
+postgres@tesla:~$ psql -U postgres -h localhost erc20-watcher-job-queue
+Password for user postgres:
+psql (12.7 (Ubuntu 12.7-1.pgdg18.04+1))
+SSL connection (protocol: TLSv1.3, cipher: TLS_AES_256_GCM_SHA384, bits: 256, compression: off)
+Type "help" for help.
+
+erc20-watcher-job-queue=# CREATE EXTENSION pgcrypto;
+CREATE EXTENSION
+erc20-watcher-job-queue=# exit
+```
+
+Create a postgres12 database for the erc20 watcher:
+
+```
+sudo su - postgres
+createdb erc20-watcher
+```
+
+Update `environments/local.toml` with database connection settings for both the databases.
+```toml
+[database]
+  type = "postgres"
+  host = "localhost"
+  port = 5432
+  database = "erc20-watcher"
+  username = "postgres"
+  password = "postgres"
+
+[jobQueue]
+  dbConnectionString = "postgres://postgres:postgres@localhost/erc20-watcher-job-queue"
+```
+
+Update the `upstream` config in `environments/local.toml`. Provide the `ipld-eth-server` GQL and RPC API endpoints.
+```toml
+[upstream]
+  [upstream.ethServer]
+    gqlApiEndpoint = "http://127.0.0.1:8082/graphql"
+    rpcProviderEndpoint = "http://127.0.0.1:8081"
+```
+
+Ensure that watcher is of active kind. Update the kind in `server` config to active.
+```toml
+[server]
+  kind = "active"
+```
+