feat: network eras

CHANGELOG.MD

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - added the `gotOptions` property to the `BlockFrostAPI` class. This property can be passed during the initialization of the `BlockFrostAPI` object. For more details, refer to the [Got Options documentation](https://github.com/sindresorhus/got/blob/main/documentation/2-options.md).
 - `txsRequiredSigners` for retrieving required signers (extra transaction witnesses)
+- `networkEras` method for querying [blockchain eras](https://docs.blockfrost.io/#tag/Cardano-Network/paths/~1network~1eras/get)
 
 ## [5.5.0] - 2023-12-20
 

src/BlockFrostAPI.ts

@@ -145,7 +145,7 @@ import {
   nutlinkTickersAll,
 } from './endpoints/api/nutlink';
 
-import { network } from './endpoints/api/network';
+import { network, networkEras } from './endpoints/api/network';
 import {
   utilsTxsEvaluate,
   utilsTxsEvaluateUtxos,
@@ -334,6 +334,7 @@ class BlockFrostAPI {
   txSubmit = txSubmit;
 
   network = network;
+  networkEras = networkEras;
 
   utilsTxsEvaluate = utilsTxsEvaluate;
   utilsTxsEvaluateUtxos = utilsTxsEvaluateUtxos;

src/endpoints/api/network/index.ts

@@ -20,3 +20,24 @@ export async function network(
     throw handleError(error);
   }
 }
+
+/**
+ * Returns start and end of each era along with parameters that can vary between hard forks.
+ * @see {@link https://docs.blockfrost.io/#tag/Cardano-Network/paths/~1network~1eras/get | API docs for Network information}
+ *
+ * @returns List of blockchain eras.
+ *
+ */
+export async function networkEras(
+  this: BlockFrostAPI,
+): Promise<components['schemas']['network-eras']> {
+  try {
+    const res =
+      await this.instance<components['schemas']['network-eras']>(
+        `network/eras`,
+      );
+    return res.body;
+  } catch (error) {
+    throw handleError(error);
+  }
+}

test/fixtures/blockfrost.ts

@@ -23,6 +23,42 @@ export default {
       active: '25197315592272395',
     },
   },
+  networkEras: [
+    {
+      start: {
+        time: 0,
+        slot: 0,
+        epoch: 0,
+      },
+      end: {
+        time: 0,
+        slot: 0,
+        epoch: 0,
+      },
+      parameters: {
+        epoch_length: 4320,
+        slot_length: 20,
+        safe_zone: 864,
+      },
+    },
+    {
+      start: {
+        time: 0,
+        slot: 0,
+        epoch: 0,
+      },
+      end: {
+        time: 0,
+        slot: 0,
+        epoch: 0,
+      },
+      parameters: {
+        epoch_length: 86400,
+        slot_length: 1,
+        safe_zone: 25920,
+      },
+    },
+  ],
   metrics: [{ a: 'a' }],
   metricsEndpoints: [{ a: 'a' }],
   ledger: {

test/fixtures/endpoints.ts

@@ -27,6 +27,12 @@ export default [
     endpointMock: mocks.network,
     response: mocks.network,
   },
+  {
+    command: (SDK: BlockFrostAPI) => SDK.networkEras(),
+    path: mainnetUrl('/network/eras'),
+    endpointMock: mocks.networkEras,
+    response: mocks.networkEras,
+  },
   {
     command: (SDK: BlockFrostAPI) => SDK.metrics(),
     path: mainnetUrl('/metrics'),