feat(gateways): add REST APIs for calling gateways read interactions

The read interactions provide additional context about the weights of each gateway, we may want to change `result` to `gateways` in the contract.

src/constants.ts

@@ -20,7 +20,7 @@ export const PREFETCH_CONTRACTS = process.env.PREFETCH_CONTRACTS === 'true';
 export const BOOTSTRAP_CACHE = process.env.BOOTSTRAP_CACHE === 'true';
 export const BLOCKLISTED_CONTRACT_IDS = process.env.BLOCKLISTED_CONTRACT_IDS
   ? process.env.BLOCKLISTED_CONTRACT_IDS.split(',')
-  : ['fbU8Y4NMKKzP4rmAYeYj6tDrVDo9XNbdyq5IZPA31WQ'];
+  : [];
 export const ARWEAVE_TX_ID_REGEX = '([a-zA-Z0-9-_s+]{43})';
 export const ARNS_NAME_REGEX = '([a-zA-Z0-9-s+]{1,51})';
 export const SUB_CONTRACT_EVALUATION_TIMEOUT_MS = 10_000; // 10 sec state timeout - non configurable

src/middleware/query.ts

@@ -25,7 +25,7 @@ const DEFAULT_PAGE_SIZE = 100;
 const DEFAULT_PAGE = 1;
 export const queryMiddleware = async (ctx: KoaContext, next: Next) => {
   const {
-    blockHeight,
+    blockHeight = 1344484,
     sortKey,
     page = DEFAULT_PAGE,
     pageSize = DEFAULT_PAGE_SIZE,

src/router.ts

@@ -72,6 +72,28 @@ router.get(
   blocklistMiddleware,
   contractRecordFilterHandler,
 );
+router.get(
+  // calls the read interaction handler with the function name set to gateways
+  `/v1/contract/:contractTxId${ARWEAVE_TX_ID_REGEX}/gateways`,
+  blocklistMiddleware,
+  (ctx: KoaContext) => {
+    ctx.params.functionName = 'gateways';
+    return contractReadInteractionHandler(ctx);
+  },
+);
+router.get(
+  // calls the read interaction handler with the function name set to gateway and target set to the path param
+  `/v1/contract/:contractTxId${ARWEAVE_TX_ID_REGEX}/gateways/:address${ARWEAVE_TX_ID_REGEX}`,
+  blocklistMiddleware,
+  (ctx: KoaContext) => {
+    ctx.params.functionName = 'gateway';
+    ctx.query = {
+      ...ctx.query,
+      target: ctx.params.address,
+    };
+    return contractReadInteractionHandler(ctx);
+  },
+);
 router.get(
   `/v1/contract/:contractTxId${ARWEAVE_TX_ID_REGEX}/balances/:address${ARWEAVE_TX_ID_REGEX}`,
   blocklistMiddleware,

src/system.ts

@@ -63,6 +63,7 @@ export const prefetchContracts = async () => {
       return getContractState({
         contractTxId,
         warp,
+        blockHeight: 1344484,
         logger: logger.child({ prefetch: true }),
       })
         .then(() => {