Use block number for eth_call in rpc-eth-client (#435)

* Update subgraph readme to run fill before job-runner

* Fix getContractEntitiesMap incase of template data sources

* Use rpcSupportsBlockHashParam flag to use blockNumber for rpc client eth_call

* Fix optional baseFeePerGas in rpc-eth-client

* Fix graph-node tests after changes

* Remove completed TODO

packages/codegen/src/data/entities/BlockProgress.yaml

@@ -14,7 +14,7 @@ columns:
     columnType: PrimaryGeneratedColumn
   - name: cid
     pgType: varchar
-    tsType: string
+    tsType: string | null
     columnType: Column
     columnOptions:
       - option: nullable

packages/codegen/src/data/entities/StateSyncStatus.yaml

@@ -12,9 +12,6 @@ columns:
     pgType: integer
     tsType: number
     columnType: Column
-    columnOptions:
-      - option: nullable
-        value: true
 imports:
   - toImport:
       - Entity

packages/codegen/src/entity.ts

@@ -538,6 +538,8 @@ export class Entity {
           option: 'nullable',
           value: 'true'
         });
+
+        columnObject.tsType = `${tsType} | null`;
       }
 
       entityObject.columns.push(columnObject);

packages/codegen/src/templates/config-template.handlebars

@@ -30,6 +30,9 @@
   # Use -1 for skipping check on block range.
   maxEventsBlockRange = 1000
 
+  # Flag to specify whether RPC endpoint supports block hash as block tag parameter
+  rpcSupportsBlockHashParam = true
+
   # GQL cache settings
   [server.gqlCache]
     enabled = true

packages/codegen/subgraph-demo.md

@@ -116,7 +116,15 @@
   yarn && yarn build
   ```
 
-* In `packages/test-watcher`, run the job-runner:
+* In `packages/test-watcher`, run fill for the subgraph start block:
+
+  ```bash
+  yarn fill --start-block 10 --end-block 10
+  ```
+
+  * Subgraph start block is the lowest `startBlock` in example [subgraph.yaml](../graph-node/test/subgraph/example1/subgraph.yaml)
+
+* Run the job-runner:
 
   ```bash
   yarn job-runner