fix(cli): resolve transfer struct via action type in sync-accounts (get_tokens missing balances)

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased (dev)
+
+### Fixes
+
+*   **`/v2/state/get_tokens` missing balances — token-contract detection in `sync accounts`**: `./hyp-control sync accounts` (and `sync all`) resolved a contract's transfer parameter struct by the hard-coded struct name `"transfer"`. Per the ABI spec the struct backing an action is named by the action's `type` field, which is frequently *not* the action name — e.g. several contracts declare a fully standard transfer (`from:name, to:name, quantity:asset, memo:string`) under the struct name `transfer_token`. Those contracts were silently skipped, so their balances were never backfilled into the MongoDB `accounts` collection and `get_tokens` returned only the symbols the live indexer happened to capture — producing a "same contract, some symbols present and some missing" result on upgraded nodes. The struct is now resolved through the transfer action's declared `type`. **After upgrading, re-run `./hyp-control sync accounts <chain>` (or `sync all`) to backfill the previously skipped contracts.**
+
 ## 4.0.7 (2026-05-16)
 
 > **4.0.6 was skipped.** The 4.0.6 version sat on `main` untagged for a period and some operators deployed it directly from `main` before any release tag existed. To avoid ambiguity between those pre-tag production deployments and the official artifact, this work is released as **4.0.7**. There is no separate 4.0.6 entry. Going forward, `main` only advances to tagged releases and active development happens on `dev`.

src/cli/sync-modules/sync-accounts.ts

@@ -68,18 +68,25 @@ export class AccountSynchronizer extends Synchronizer<IAccount> {
                 const abi = await this.client.v1.chain.get_abi(contract);
                 const tables = new Set(abi.abi?.tables?.map(value => value.name));
                 if (tables.has("accounts") && tables.has("stat")) {
-                    const actions = new Set(abi.abi?.actions?.map(value => value.name));
-                    if (actions.has("transfer")) {
-                        const transferType = abi.abi?.structs?.find(s => s.name === 'transfer');
+                    // Resolve the transfer parameter struct through the transfer action's
+                    // declared `type`, not the literal name "transfer". Per the ABI spec the
+                    // struct backing an action is named by the action's `type` field, which is
+                    // frequently NOT the action name — e.g. the paycash contracts (token.pcash,
+                    // cashescashes, swap.pcash, ...) declare a standard transfer under the struct
+                    // name "transfer_token". Looking the struct up by name === "transfer" returned
+                    // undefined and silently dropped these valid token contracts from the backfill.
+                    const transferAction = abi.abi?.actions?.find(a => a.name === "transfer");
+                    if (transferAction) {
+                        const transferType = abi.abi?.structs?.find(s => s.name === transferAction.type);
                         if (transferType && transferType.fields) {
                             const fields = transferType.fields;
                             let valid = true;
                             for (let i = 0; i < transferFields.length; i++) {
-                                if ((fields[i].name === "from" || fields[i].name === "to") && fields[i].type === 'account_name') {
+                                if (fields[i] && (fields[i].name === "from" || fields[i].name === "to") && fields[i].type === 'account_name') {
                                     valid = true;
                                     continue;
                                 }
-                                if (fields[i].name !== transferFields[i].name || fields[i].type !== transferFields[i].type) {
+                                if (!fields[i] || fields[i].name !== transferFields[i].name || fields[i].type !== transferFields[i].type) {
                                     console.error(`Invalid token contract ${contract} ->> ${fields.map(f => (f.name + "(" + f.type + ")").padEnd(24, " ")).join('  ')}`);
                                     valid = false;
                                     break;