solution: esplora upstream connection for bitcoin

src/test/resources/bitcoin/esplora-utxo-1.json

@@ -0,0 +1,156 @@
+[
+  {
+    "txid": "002eba7d9e8081afc687e1c3fa7b6a6451713b75bc91432d441bb1e7e1511c5c",
+    "vout": 0,
+    "status": {
+      "confirmed": true,
+      "block_height": 647721,
+      "block_hash": "00000000000000000000dfcec4f7a9bfb8e866a1ce84c65413f823a30d58be65",
+      "block_time": 1599808442
+    },
+    "value": 105524
+  },
+  {
+    "txid": "1ee3cb3833b1e499e7f8babb1100c4aa0b4273f655036561d84dd72a5b197258",
+    "vout": 0,
+    "status": {
+      "confirmed": true,
+      "block_height": 648312,
+      "block_hash": "000000000000000000013ae68460e47a6336e936c39ce509c5eb962d7982b3af",
+      "block_time": 1600114632
+    },
+    "value": 5248
+  },
+  {
+    "txid": "e21f15131c6fedc165d2daca98043430e6c526f0e3b3d6821f6dc27e450f3eb2",
+    "vout": 724,
+    "status": {
+      "confirmed": true,
+      "block_height": 645601,
+      "block_hash": "000000000000000000042e6455477ef88859b630ccb740e675326e7679485fb3",
+      "block_time": 1598566638
+    },
+    "value": 59539
+  },
+  {
+    "txid": "c14d13fcabfd701a86c6fdac7cd9dc9abd849538308e6526539791ad6befafec",
+    "vout": 429,
+    "status": {
+      "confirmed": true,
+      "block_height": 647600,
+      "block_hash": "00000000000000000002864bf9affc84973de0b0099659ad06ae463ac9e3db04",
+      "block_time": 1599736973
+    },
+    "value": 10548
+  },
+  {
+    "txid": "7c9a77c8a6d4a02afca1dad358098cad6d7b0990079fdb0d6d6289a0538974fd",
+    "vout": 165,
+    "status": {
+      "confirmed": true,
+      "block_height": 646920,
+      "block_hash": "0000000000000000000435313e49202f818d6bf9bea6a2864b6da4d8457b7156",
+      "block_time": 1599363124
+    },
+    "value": 17050
+  },
+  {
+    "txid": "9dd94f926ba50850819fd7a5f07b93fb0d4bbdebf9c80cd5ccd1efd1af65a43d",
+    "vout": 707,
+    "status": {
+      "confirmed": true,
+      "block_height": 647228,
+      "block_hash": "0000000000000000000ea8779c8c4d5f973c49fa7c7e7e6acca789240b349582",
+      "block_time": 1599522964
+    },
+    "value": 7383
+  },
+  {
+    "txid": "10d2f54b99e20abec3b84aaffdbe6214d73bb7c6200350fb1562fd5ef4143d69",
+    "vout": 812,
+    "status": {
+      "confirmed": true,
+      "block_height": 647013,
+      "block_hash": "0000000000000000001005dcd53f484fb34bd114eb676d2fb681255ce5877071",
+      "block_time": 1599408073
+    },
+    "value": 18941
+  },
+  {
+    "txid": "78449f63c1d99deeb038afd49acd46a62e570cdbcfff18c29a57112798c19557",
+    "vout": 454,
+    "status": {
+      "confirmed": true,
+      "block_height": 647371,
+      "block_hash": "00000000000000000000d9efae5d8b23187fef9352791576b7355ceeff14f46a",
+      "block_time": 1599602375
+    },
+    "value": 9735
+  },
+  {
+    "txid": "36a77970d6c0355d3734c6b41dc7f799c7e48c7e508737486bac89848604dbb3",
+    "vout": 378,
+    "status": {
+      "confirmed": true,
+      "block_height": 647678,
+      "block_hash": "0000000000000000000b4f64c1e59a81bc6241faa4bf777b0cd84fe2080d290d",
+      "block_time": 1599776128
+    },
+    "value": 27053
+  },
+  {
+    "txid": "b1b301adb1b46e309bf62d8f4aee4dbf481d7d9008c5d1e840feed78f8fea658",
+    "vout": 1429,
+    "status": {
+      "confirmed": true,
+      "block_height": 647852,
+      "block_hash": "0000000000000000000da3a1f8d23df1f9a7e89ab6e348c37cdb056b659f8e71",
+      "block_time": 1599880147
+    },
+    "value": 7244
+  },
+  {
+    "txid": "6733d19b07b0fa0b22ea6fe7b23371ecfe9f6f1b8d5884a3fe9a1db786bef3df",
+    "vout": 446,
+    "status": {
+      "confirmed": true,
+      "block_height": 648090,
+      "block_hash": "00000000000000000008b2f35ae277da04d5b1e7b55d7a20fb4190b21c1cfb74",
+      "block_time": 1600001410
+    },
+    "value": 4073
+  },
+  {
+    "txid": "01588730a39a90b30321d19b451333b1f24302458da0f5e851ce13a912caa142",
+    "vout": 303,
+    "status": {
+      "confirmed": true,
+      "block_height": 646625,
+      "block_hash": "0000000000000000000de3b0f43dcd0870be269a1326f3cbb4b692490cfa78aa",
+      "block_time": 1599175143
+    },
+    "value": 5883
+  },
+  {
+    "txid": "311d0d1d4eea6ee37d57954cd1002898bef64885d8e438afbbd7fe4fdc6e08de",
+    "vout": 2250,
+    "status": {
+      "confirmed": true,
+      "block_height": 646382,
+      "block_hash": "0000000000000000000393bc7709a85b572b2ea239ed07002b230e20b5f47699",
+      "block_time": 1599018027
+    },
+    "value": 22978
+  },
+  {
+    "txid": "230317b8fdf1ae85f5fbdc49ca90851b1728c2d9432b2738d3fe1c6f68f046e4",
+    "vout": 11,
+    "status": {
+      "confirmed": true,
+      "block_height": 646777,
+      "block_hash": "0000000000000000000dab9a4fab9d612f402f491dad9aad6ea94b57995e45a1",
+      "block_time": 1599273442
+    },
+    "value": 8642
+  }
+]

src/test/resources/upstreams-bitcoin-esplora.yaml

@@ -0,0 +1,17 @@
+version: v1
+
+defaults:
+  - chains:
+      - bitcoin
+    options:
+      min-peers: 3
+
+upstreams:
+  - id: local
+    chain: bitcoin
+    connection:
+      bitcoin:
+        rpc:
+          url: "http://localhost:8545"
+        esplora:
+          url: "http://localhost:3001"

src/test/resources/upstreams-bitcoin.yaml

@@ -1,6 +1,6 @@
 version: v1
 
-defaultOptions:
+defaults:
   - chains:
       - bitcoin
     options: