diff --git a/package-lock.json b/package-lock.json
index d8cb4dd..dbc294d 100644
--- a/package-lock.json
+++ b/package-lock.json
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-          "dev": true
-        },
-        "yallist": {
-          "version": "3.0.3",
-          "bundled": true,
-          "dev": true
-        }
+        "node-pre-gyp": "^0.15.0"
       }
     },
     "grpc_tools_node_protoc_ts": {
@@ -4160,9 +3565,9 @@
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-      "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.5.tgz",
-      "integrity": "sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw=="
+      "version": "1.3.7",
+      "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.7.tgz",
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     },
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@@ -5865,12 +5270,6 @@
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-      "resolved": "https://registry.npmjs.org/kareem/-/kareem-2.3.1.tgz",
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-    },
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       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
@@ -5930,17 +5329,6 @@
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-      "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-1.4.0.tgz",
-      "integrity": "sha512-qH0WSMBtn/oHuwjy/NucEgbx5dbxxnxup9s4PVXJUDHZBQY+s0NWA9rJf53RBnQZxfch7euUui7hpoAPvALZdA==",
-      "dev": true,
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-        "json5": "^1.0.1"
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@@ -5951,9 +5339,9 @@
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-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
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+      "version": "4.17.20",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
+      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA=="
     },
     "lodash._reinterpolate": {
       "version": "3.0.0",
@@ -6101,13 +5489,6 @@
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       }
     },
-    "memory-pager": {
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-      "dev": true,
-      "optional": true
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     "merge-stream": {
       "version": "2.0.0",
       "resolved": "https://registry.npm.taobao.org/merge-stream/download/merge-stream-2.0.0.tgz",
@@ -6287,89 +5668,6 @@
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       "dev": true
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-      "version": "3.5.9",
-      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.5.9.tgz",
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-        "safe-buffer": "^5.1.2",
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-      "version": "5.9.23",
-      "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-5.9.23.tgz",
-      "integrity": "sha512-fMYlMRJz0T6Ax2K2P0jt+kxXd4qaRxyfZCha1YBMczmA2EBlT5SnBlcDyJ4YQa4/z+GoDh06uH090w7BfBcdWg==",
-      "dev": true,
-      "requires": {
-        "bson": "^1.1.4",
-        "kareem": "2.3.1",
-        "mongodb": "3.5.9",
-        "mongoose-legacy-pluralize": "1.0.2",
-        "mpath": "0.7.0",
-        "mquery": "3.2.2",
-        "ms": "2.1.2",
-        "regexp-clone": "1.0.0",
-        "safe-buffer": "5.2.1",
-        "sift": "7.0.1",
-        "sliced": "1.0.1"
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-          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
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-          "dev": true
-        }
-      }
-    },
-    "mongoose-legacy-pluralize": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/mongoose-legacy-pluralize/-/mongoose-legacy-pluralize-1.0.2.tgz",
-      "integrity": "sha512-Yo/7qQU4/EyIS8YDFSeenIvXxZN+ld7YdV9LqFVQJzTLye8unujAWPZ4NWKfFA+RNjh+wvTWKY9Z3E5XM6ZZiQ==",
-      "dev": true
-    },
-    "mpath": {
-      "version": "0.7.0",
-      "resolved": "https://registry.npmjs.org/mpath/-/mpath-0.7.0.tgz",
-      "integrity": "sha512-Aiq04hILxhz1L+f7sjGyn7IxYzWm1zLNNXcfhDtx04kZ2Gk7uvFdgZ8ts1cWa/6d0TQmag2yR8zSGZUmp0tFNg==",
-      "dev": true
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-    "mquery": {
-      "version": "3.2.2",
-      "resolved": "https://registry.npmjs.org/mquery/-/mquery-3.2.2.tgz",
-      "integrity": "sha512-XB52992COp0KP230I3qloVUbkLUxJIu328HBP2t2EsxSFtf4W1HPSOBWOXf1bqxK4Xbb66lfMJ+Bpfd9/yZE1Q==",
-      "dev": true,
-      "requires": {
-        "bluebird": "3.5.1",
-        "debug": "3.1.0",
-        "regexp-clone": "^1.0.0",
-        "safe-buffer": "5.1.2",
-        "sliced": "1.0.1"
-      },
-      "dependencies": {
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-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-          "dev": true,
-          "requires": {
-            "ms": "2.0.0"
-          }
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-        "ms": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
-          "dev": true
-        }
-      }
-    },
     "ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -6847,12 +6145,6 @@
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       "dev": true
     },
-    "pathval": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.0.tgz",
-      "integrity": "sha1-uULm1L3mUwBe9rcTYd74cn0GReA=",
-      "dev": true
-    },
     "performance-now": {
       "version": "2.1.0",
       "resolved": "https://registry.npm.taobao.org/performance-now/download/performance-now-2.1.0.tgz",
@@ -7068,12 +6360,6 @@
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       }
     },
-    "regexp-clone": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/regexp-clone/-/regexp-clone-1.0.0.tgz",
-      "integrity": "sha512-TuAasHQNamyyJ2hb97IuBEif4qBHGjPHBS64sZwytpLEqtBQ1gPJTnOaQ6qmpET16cK14kkjbazl6+p0RRv0yw==",
-      "dev": true
-    },
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       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/relative/-/relative-3.0.2.tgz",
@@ -7220,24 +6506,6 @@
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       "dev": true
     },
-    "require_optional": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz",
-      "integrity": "sha512-qhM/y57enGWHAe3v/NcwML6a3/vfESLe/sGM2dII+gEO0BpKRUkWZow/tyloNqJyN6kXSl3RyyM8Ll5D/sJP8g==",
-      "dev": true,
-      "requires": {
-        "resolve-from": "^2.0.0",
-        "semver": "^5.1.0"
-      },
-      "dependencies": {
-        "semver": {
-          "version": "5.7.1",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
-          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
-          "dev": true
-        }
-      }
-    },
     "resolve": {
       "version": "1.17.0",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.17.0.tgz",
@@ -7264,12 +6532,6 @@
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       }
     },
-    "resolve-from": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
-      "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c=",
-      "dev": true
-    },
     "resolve-url": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/resolve-url/-/resolve-url-0.2.1.tgz",
@@ -7353,16 +6615,6 @@
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       }
     },
-    "saslprep": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/saslprep/-/saslprep-1.0.3.tgz",
-      "integrity": "sha512-/MY/PEMbk2SuY5sScONwhUDsV2p77Znkb/q3nSVstq/yQzYJOH/Azh29p9oJLsl3LnQwSvZDKagDGBsBwSooag==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "sparse-bitfield": "^3.0.3"
-      }
-    },
     "sax": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
@@ -7377,16 +6629,6 @@
         "xmlchars": "^2.2.0"
       }
     },
-    "schema-utils": {
-      "version": "0.4.7",
-      "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-0.4.7.tgz",
-      "integrity": "sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==",
-      "dev": true,
-      "requires": {
-        "ajv": "^6.1.0",
-        "ajv-keywords": "^3.1.0"
-      }
-    },
     "self-closing-tags": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/self-closing-tags/-/self-closing-tags-1.0.1.tgz",
@@ -7446,12 +6688,6 @@
       "dev": true,
       "optional": true
     },
-    "sift": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/sift/-/sift-7.0.1.tgz",
-      "integrity": "sha512-oqD7PMJ+uO6jV9EQCl0LrRw1OwsiPsiFQR5AR30heR+4Dl7jBBbDLnNvWiak20tzZlSE1H7RB30SX/1j/YYT7g==",
-      "dev": true
-    },
     "signal-exit": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.3.tgz",
@@ -7477,12 +6713,6 @@
       "integrity": "sha1-ZTm+hwwWWtvVJAIg2+Nh8bxNRjQ=",
       "dev": true
     },
-    "sliced": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/sliced/-/sliced-1.0.1.tgz",
-      "integrity": "sha1-CzpmK10Ewxd7GSa+qCsD+Dei70E=",
-      "dev": true
-    },
     "snapdragon": {
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/snapdragon/-/snapdragon-0.8.2.tgz",
@@ -7597,16 +6827,6 @@
       "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
       "dev": true
     },
-    "sparse-bitfield": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",
-      "integrity": "sha1-/0rm5oZWBWuks+eSqzM004JzyhE=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "memory-pager": "^1.0.2"
-      }
-    },
     "spdx-correct": {
       "version": "3.1.1",
       "resolved": "https://registry.npm.taobao.org/spdx-correct/download/spdx-correct-3.1.1.tgz",
@@ -8704,16 +7924,6 @@
       "integrity": "sha1-YQY29rH3A4kb00dxzLF/uTtHB5w=",
       "dev": true
     },
-    "worker-loader": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/worker-loader/-/worker-loader-2.0.0.tgz",
-      "integrity": "sha512-tnvNp4K3KQOpfRnD20m8xltE3eWh89Ye+5oj7wXEEHKac1P4oZ6p9oTj8/8ExqoSBnk9nu5Pr4nKfQ1hn2APJw==",
-      "dev": true,
-      "requires": {
-        "loader-utils": "^1.0.0",
-        "schema-utils": "^0.4.0"
-      }
-    },
     "wrap-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
diff --git a/package.json b/package.json
index 01c931f..458bbef 100644
--- a/package.json
+++ b/package.json
@@ -25,26 +25,25 @@
     "Instrumentation"
   ],
   "author": "Apache SkyWalking Team",
-  "license": "Apache 2.0",
+  "license": "Apache-2.0",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/apache/skywalking-nodejs"
+  },
   "bugs": {
     "url": "https://github.com/apache/skywalking/issues",
     "email": "dev@skywalking.apache.org"
   },
   "devDependencies": {
-    "@types/chai": "^4.2.11",
     "@types/google-protobuf": "^3.7.2",
     "@types/jest": "^26.0.15",
-    "@types/mongodb": "^3.5.25",
     "@types/node": "^14.0.11",
     "@types/semver": "^7.2.0",
     "@types/uuid": "^8.0.0",
     "axios": "^0.21.0",
-    "chai": "^4.2.0",
-    "grpc-tools": "^1.8.0",
+    "grpc-tools": "^1.10.0",
     "grpc_tools_node_protoc_ts": "^4.0.0",
     "jest": "^26.6.3",
-    "mongodb": "^3.5.9",
-    "mongoose": "^5.9.20",
     "prettier": "^2.0.5",
     "testcontainers": "^6.2.0",
     "ts-jest": "^26.4.4",
@@ -53,8 +52,7 @@
     "tslint": "^6.1.2",
     "tslint-config-prettier": "^1.18.0",
     "typescript": "^3.9.5",
-    "wait-for-expect": "^3.0.2",
-    "worker-loader": "^2.0.0"
+    "wait-for-expect": "^3.0.2"
   },
   "dependencies": {
     "google-protobuf": "^3.12.2",
diff --git a/src/agent/protocol/grpc/SegmentObjectAdapter.ts b/src/agent/protocol/grpc/SegmentObjectAdapter.ts
index 2844763..94cc0ee 100644
--- a/src/agent/protocol/grpc/SegmentObjectAdapter.ts
+++ b/src/agent/protocol/grpc/SegmentObjectAdapter.ts
@@ -17,10 +17,16 @@
  *
  */
 
-import { Log, RefType, SegmentObject, SegmentReference, SpanObject } from '../../../proto/language-agent/Tracing_pb';
 import config from '../../../config/AgentConfig';
 import { KeyStringValuePair } from '../../../proto/common/Common_pb';
 import Segment from '../../../trace/context/Segment';
+import {
+  Log,
+  RefType,
+  SegmentObject,
+  SegmentReference,
+  SpanObject,
+} from '../../../proto/language-agent/Tracing_pb';
 
 /**
  * An adapter that adapts {@link Segment} objects to gRPC object {@link SegmentObject}.
@@ -28,61 +34,56 @@
 export default class SegmentObjectAdapter extends SegmentObject {
   constructor(segment: Segment) {
     super();
-    this.setService(config.serviceName);
-    this.setServiceinstance(config.serviceInstance);
-    this.setTraceid(segment.relatedTraces[0].toString());
-    this.setTracesegmentid(segment.segmentId.toString());
-    this.setSpansList(
-      segment.spans.map((span) => {
-        const spanObj = new SpanObject();
-        spanObj.setSpanid(span.id);
-        spanObj.setParentspanid(span.parentId);
-        spanObj.setStarttime(span.startTime);
-        spanObj.setEndtime(span.endTime);
-        spanObj.setOperationname(span.operation);
-        spanObj.setPeer(span.peer);
-        spanObj.setSpantype(span.type);
-        spanObj.setSpanlayer(span.layer);
-        spanObj.setComponentid(span.component.id);
-        spanObj.setIserror(span.errored);
-        spanObj.setLogsList(
-          span.logs.map((log) => {
-            const l = new Log();
-            l.setTime(log.timestamp);
-            l.setDataList(
-              log.items.map((logItem) => {
-                const item = new KeyStringValuePair();
-                item.setKey(logItem.key);
-                item.setValue(logItem.val);
-                return item;
-              }),
-            );
-            return l;
-          }),
-        );
-        spanObj.setTagsList(
-          span.tags.map((tag) => {
-            const item = new KeyStringValuePair();
-            item.setKey(tag.key);
-            item.setValue(tag.val);
-            return item;
-          }),
-        );
-        spanObj.setRefsList(
-          span.refs.map((ref) => {
-            const segmentRef = new SegmentReference();
-            segmentRef.setReftype(RefType.CROSSPROCESS);
-            segmentRef.setTraceid(ref.traceId.toString());
-            segmentRef.setParenttracesegmentid(ref.segmentId.toString());
-            segmentRef.setParentspanid(ref.spanId);
-            segmentRef.setParentservice(ref.service);
-            segmentRef.setParentserviceinstance(ref.serviceInstance);
-            segmentRef.setNetworkaddressusedatpeer(ref.clientAddress);
-            return segmentRef;
-          }),
-        );
-        return spanObj;
-      }),
+    super
+    .setService(config.serviceName)
+    .setServiceinstance(config.serviceInstance)
+    .setTraceid(segment.relatedTraces[0].toString())
+    .setTracesegmentid(segment.segmentId.toString())
+    .setSpansList(
+      segment.spans.map((span) =>
+        new SpanObject()
+        .setSpanid(span.id)
+        .setParentspanid(span.parentId)
+        .setStarttime(span.startTime)
+        .setEndtime(span.endTime)
+        .setOperationname(span.operation)
+        .setPeer(span.peer)
+        .setSpantype(span.type)
+        .setSpanlayer(span.layer)
+        .setComponentid(span.component.id)
+        .setIserror(span.errored)
+        .setLogsList(
+          span.logs.map((log) =>
+            new Log()
+            .setTime(log.timestamp)
+            .setDataList(
+              log.items.map((logItem) =>
+                new KeyStringValuePair()
+                .setKey(logItem.key)
+                .setValue(logItem.val)),
+            ),
+          ),
+        )
+        .setTagsList(
+          span.tags.map((tag) =>
+            new KeyStringValuePair()
+            .setKey(tag.key)
+            .setValue(tag.val),
+          ),
+        )
+        .setRefsList(
+          span.refs.map((ref) =>
+            new SegmentReference()
+            .setReftype(RefType.CROSSPROCESS)
+            .setTraceid(ref.traceId.toString())
+            .setParenttracesegmentid(ref.segmentId.toString())
+            .setParentspanid(ref.spanId)
+            .setParentservice(ref.service)
+            .setParentserviceinstance(ref.serviceInstance)
+            .setNetworkaddressusedatpeer(ref.clientAddress),
+          ),
+        ),
+      ),
     );
   }
 }
diff --git a/src/agent/protocol/grpc/clients/HeartbeatClient.ts b/src/agent/protocol/grpc/clients/HeartbeatClient.ts
index 5bebc81..8873d3d 100644
--- a/src/agent/protocol/grpc/clients/HeartbeatClient.ts
+++ b/src/agent/protocol/grpc/clients/HeartbeatClient.ts
@@ -56,38 +56,18 @@
       return;
     }
 
-    const keepAlivePkg = new InstancePingPkg();
-    keepAlivePkg.setService(config.serviceName);
-    keepAlivePkg.setServiceinstance(config.serviceInstance);
+    const keepAlivePkg = new InstancePingPkg()
+    .setService(config.serviceName)
+    .setServiceinstance(config.serviceInstance);
 
-    const instanceProperties = new InstanceProperties();
-    instanceProperties.setService(config.serviceName);
-    instanceProperties.setServiceinstance(config.serviceInstance);
-    instanceProperties.setPropertiesList([
-      (() => {
-        const lang = new KeyStringValuePair();
-        lang.setKey('language');
-        lang.setValue('NodeJS');
-        return lang;
-      })(),
-      (() => {
-        const osName = new KeyStringValuePair();
-        osName.setKey('OS Name');
-        osName.setValue(os.platform());
-        return osName;
-      })(),
-      (() => {
-        const hostname = new KeyStringValuePair();
-        hostname.setValue('hostname');
-        hostname.setValue(os.hostname());
-        return hostname;
-      })(),
-      (() => {
-        const p = new KeyStringValuePair();
-        p.setValue('Process No.');
-        p.setValue(`${process.pid}`);
-        return p;
-      })(),
+    const instanceProperties = new InstanceProperties()
+    .setService(config.serviceName)
+    .setServiceinstance(config.serviceInstance)
+    .setPropertiesList([
+      new KeyStringValuePair().setKey('language').setValue('NodeJS'),
+      new KeyStringValuePair().setKey('OS Name').setValue(os.platform()),
+      new KeyStringValuePair().setValue('hostname').setValue(os.hostname()),
+      new KeyStringValuePair().setValue('Process No.').setValue(`${process.pid}`),
     ]);
 
     this.heartbeatTimer = setInterval(() => {
diff --git a/src/agent/protocol/grpc/clients/TraceReportClient.ts b/src/agent/protocol/grpc/clients/TraceReportClient.ts
index 13be3a2..028ddbf 100644
--- a/src/agent/protocol/grpc/clients/TraceReportClient.ts
+++ b/src/agent/protocol/grpc/clients/TraceReportClient.ts
@@ -56,8 +56,6 @@
           return;
         }
 
-        logger.info({ 'buffer.length': buffer.length });
-
         const stream = this.reporterClient.collect((error, _) => {
           if (error) {
             logger.error('Failed to report trace data', error);
diff --git a/src/trace/context/SpanContext.ts b/src/trace/context/SpanContext.ts
index 196dd51..c08f524 100644
--- a/src/trace/context/SpanContext.ts
+++ b/src/trace/context/SpanContext.ts
@@ -139,7 +139,7 @@
       });
     }
 
-    let span = this.ignoreCheck(operation, SpanType.LOCAL);
+    const span = this.ignoreCheck(operation, SpanType.LOCAL);
 
     if (span)
       return span;
diff --git a/tests/plugins/http/test.ts b/tests/plugins/http/test.ts
index 99ccf95..07966da 100644
--- a/tests/plugins/http/test.ts
+++ b/tests/plugins/http/test.ts
@@ -18,7 +18,7 @@
  */
 
 import * as path from 'path';
-import { DockerComposeEnvironment, Wait } from 'testcontainers';
+import { DockerComposeEnvironment, StartedDockerComposeEnvironment, Wait } from 'testcontainers';
 import axios from 'axios';
 import waitForExpect from 'wait-for-expect';
 import { promises as fs } from 'fs';
@@ -26,7 +26,7 @@
 const rootDir = path.resolve(__dirname);
 
 describe('plugin tests', () => {
-  let compose;
+  let compose: StartedDockerComposeEnvironment;
 
   beforeAll(async () => {
     compose = await new DockerComposeEnvironment(rootDir, 'docker-compose.yml')