Add API to return evm tx, #974

backend/packages/server/src/features/txs/controllers/tx.js

@@ -0,0 +1,32 @@
+const {
+  block: { getEvmTxCol, getExtrinsicCollection },
+} = require("@statescan/mongo");
+const { HttpError } = require("../../../utils");
+
+async function getTx(ctx) {
+  const { hash } = ctx.params;
+  const evmCol = await getEvmTxCol();
+  const evmTx = await evmCol.findOne({ hash }, { projection: { _id: 0 } });
+  if (evmTx) {
+    ctx.body = {
+      isEvm: true,
+      ...evmTx,
+    };
+    return;
+  }
+
+  const exCol = await getExtrinsicCollection();
+  const extrinsic = await exCol.findOne({ hash }, { projection: { _id: 0 } });
+  if (!extrinsic) {
+    throw new HttpError(404, "extrinsic not found");
+  }
+
+  ctx.body = {
+    isEvm: false,
+    ...extrinsic,
+  };
+}
+
+module.exports = {
+  getTx,
+};

backend/packages/server/src/features/txs/routes.js

@@ -0,0 +1,8 @@
+const Router = require("koa-router");
+const { getTx } = require("./controllers/tx");
+
+const router = new Router();
+
+router.get("/txs/:hash", getTx);
+
+module.exports = router;

backend/packages/server/src/routes.js

@@ -15,6 +15,7 @@ const routes = [
   require("./features/runtime/routes"),
   require("./features/status/routes"),
   require("./features/overview/routes"),
+  require("./features/txs/routes"),
 ];
 
 const assetsRoutes = [require("./features/assets/routes")];