refactor(common,tap-agent): use tap-receipt header (#201)

Signed-off-by: Gustavo Inacio <[email protected]>

Author: gusinacio

README.md

@@ -72,7 +72,7 @@ Ready to roll!
 
 # Free query auth token check failed
 ✗ curl -X POST -H 'Content-Type: application/json' -H 'Authorization: blah' --data '{"query": "{_meta{block{number}}}"}' http://localhost:7300/subgraphs/id/0xb655ca6f49e73728a102219726ff678d61d8fb792874792e9f0d9887dc616600
-"Invalid Scalar-Receipt header provided"%
+"Invalid Tap-Receipt header provided"%
 
 # Subgraph health check
 ✗ curl http://localhost:7300/subgraphs/health/QmVhiE4nax9i86UBnBmQCYDzvjWuwHShYh7aspGPQhU5Sj

common/src/indexer_errors.rs

@@ -204,9 +204,9 @@ impl IndexerErrorCode {
             Self::IE026 => "Failed to deploy subgraph deployment",
             Self::IE027 => "Failed to remove subgraph deployment",
             Self::IE028 => "Failed to reassign subgraph deployment",
-            Self::IE029 => "Invalid Scalar-Receipt header provided",
-            Self::IE030 => "No Scalar-Receipt header provided",
-            Self::IE031 => "Invalid Scalar-Receipt value provided",
+            Self::IE029 => "Invalid Tap-Receipt header provided",
+            Self::IE030 => "No Tap-Receipt header provided",
+            Self::IE031 => "Invalid Tap-Receipt value provided",
             Self::IE032 => "Failed to process paid query",
             Self::IE033 => "Failed to process free query",
             Self::IE034 => "Not authorized as an operator for the indexer",

common/src/indexer_service/http/tap_receipt_header.rs

@@ -25,7 +25,7 @@ impl Deref for TapReceipt {
 }
 
 lazy_static! {
-    static ref TAP_RECEIPT: HeaderName = HeaderName::from_static("scalar-receipt");
+    static ref TAP_RECEIPT: HeaderName = HeaderName::from_static("tap-receipt");
 }
 
 impl Header for TapReceipt {

tap-agent/src/agent/sender_account.rs

@@ -49,7 +49,7 @@ pub enum SenderAccountMessage {
 /// A SenderAccount manages the receipts accounting between the indexer and the sender across
 /// multiple allocations.
 ///
-/// Manages the lifecycle of Scalar TAP for the SenderAccount, including:
+/// Manages the lifecycle of TAP for the SenderAccount, including:
 /// - Monitoring new receipts and keeping track of the cumulative unaggregated fees across
 ///   allocations.
 /// - Requesting RAVs from the sender's TAP aggregator once the cumulative unaggregated fees reach a