diff --git a/Lambda_CRUD.postman_collection.json b/Lambda_CRUD.postman_collection.json
index 1bd8f3de892d1fc582c854b0cc2aeea67fb788ae..37f917a187dbfda04356e7a68dd2c5e32ae73321 100644
--- a/Lambda_CRUD.postman_collection.json
+++ b/Lambda_CRUD.postman_collection.json
@@ -81,6 +81,243 @@
 			},
 			"response": []
 		},
+		{
+			"name": "CREATE no body",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 400\", function () {",
+							"    pm.response.to.have.status(400);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PUT",
+				"header": [
+					{
+						"key": "Authorization",
+						"type": "text",
+						"value": "SignedHeaders",
+						"disabled": true
+					},
+					{
+						"key": "Date",
+						"type": "text",
+						"value": "{{$timestamp}}",
+						"disabled": true
+					}
+				],
+				"body": {
+					"mode": "raw",
+					"raw": ""
+				},
+				"url": {
+					"raw": "{{endpoint}}/crud",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "UPDATE no body",
+			"event": [
+				{
+					"listen": "prerequest",
+					"script": {
+						"exec": [
+							""
+						],
+						"type": "text/javascript"
+					}
+				},
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 400\", function () {",
+							"    pm.response.to.have.status(400);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": ""
+				},
+				"url": {
+					"raw": "{{endpoint}}/crud?id={{id}}",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					],
+					"query": [
+						{
+							"key": "id",
+							"value": "{{id}}"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "UPDATE empty body",
+			"event": [
+				{
+					"listen": "prerequest",
+					"script": {
+						"exec": [
+							""
+						],
+						"type": "text/javascript"
+					}
+				},
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 400\", function () {",
+							"    pm.response.to.have.status(400);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{}"
+				},
+				"url": {
+					"raw": "{{endpoint}}/crud?id={{id}}",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					],
+					"query": [
+						{
+							"key": "id",
+							"value": "{{id}}"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "UPDATE no id",
+			"event": [
+				{
+					"listen": "prerequest",
+					"script": {
+						"exec": [
+							""
+						],
+						"type": "text/javascript"
+					}
+				},
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 400\", function () {",
+							"    pm.response.to.have.status(400);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\"hello\":\"bonjour\"}"
+				},
+				"url": {
+					"raw": "{{endpoint}}/crud",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "UPDATE inexistant id",
+			"event": [
+				{
+					"listen": "prerequest",
+					"script": {
+						"exec": [
+							""
+						],
+						"type": "text/javascript"
+					}
+				},
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 204\", function () {",
+							"    pm.response.to.have.status(204);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\"hello\":\"bonjour\"}"
+				},
+				"url": {
+					"raw": "{{endpoint}}/crud?id=noid",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					],
+					"query": [
+						{
+							"key": "id",
+							"value": "noid"
+						}
+					]
+				}
+			},
+			"response": []
+		},
 		{
 			"name": "UPDATE",
 			"event": [
@@ -171,6 +408,179 @@
 			},
 			"response": []
 		},
+		{
+			"name": "GET no id",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 400\", function () {",
+							"    pm.response.to.have.status(400);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "{{endpoint}}/crud",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "GET item created after update",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 200\", function () {",
+							"    pm.response.to.have.status(200);",
+							"});",
+							"pm.test(\"response have correct payload\", function () {",
+							"    var jsonData = pm.response.json();",
+							"    pm.expect(jsonData.hello).to.eql(\"bonjour\");",
+							"    pm.expect(jsonData.ID).to.eql(\"noid\");",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "{{endpoint}}/crud?id=noid",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					],
+					"query": [
+						{
+							"key": "id",
+							"value": "noid"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "DELETE no id",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 400\", function () {",
+							"    pm.response.to.have.status(400);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "DELETE",
+				"header": [],
+				"url": {
+					"raw": "{{endpoint}}/crud",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "DELETE inexistant id",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 200\", function () {",
+							"    pm.response.to.have.status(200);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "DELETE",
+				"header": [],
+				"url": {
+					"raw": "{{endpoint}}/crud?id=noid",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					],
+					"query": [
+						{
+							"key": "id",
+							"value": "noid"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "DELETE item created after update",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 200\", function () {",
+							"    pm.response.to.have.status(200);",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "DELETE",
+				"header": [],
+				"url": {
+					"raw": "{{endpoint}}/crud?id=noid",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					],
+					"query": [
+						{
+							"key": "id",
+							"value": "noid"
+						}
+					]
+				}
+			},
+			"response": []
+		},
 		{
 			"name": "DELETE",
 			"event": [
@@ -207,6 +617,46 @@
 				}
 			},
 			"response": []
+		},
+		{
+			"name": "GET inexistant id",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 200\", function () {",
+							"    pm.response.to.have.status(200);",
+							"});",
+							"",
+							"pm.test(\"response don't have payload\", function () {",
+							"    pm.response.to.not.have.body",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "{{endpoint}}/crud?id=noid",
+					"host": [
+						"{{endpoint}}"
+					],
+					"path": [
+						"crud"
+					],
+					"query": [
+						{
+							"key": "id",
+							"value": "noid"
+						}
+					]
+				}
+			},
+			"response": []
 		}
 	]
 }
\ No newline at end of file
diff --git a/deploy/lambda/src/create-one.js b/deploy/lambda/src/create-one.js
index 13a0f6ced4ca9970139d3707225f7c17e2f3b448..ce33e38bc726522e16ee79831029dd215f825b0e 100644
--- a/deploy/lambda/src/create-one.js
+++ b/deploy/lambda/src/create-one.js
@@ -7,6 +7,7 @@ const RESERVED_RESPONSE = `Error: You're using AWS reserved keywords as attribut
 exports.handler = async (event = {}) => {
     console.log(event)
     if (!event.body) {
+        console.error("400 invalid request, you are missing the parameter body")
         return { statusCode: 400, body: 'invalid request, you are missing the parameter body' };
     }
     const item = typeof event.body == 'object' ? event.body : JSON.parse(event.body);
@@ -22,6 +23,7 @@ exports.handler = async (event = {}) => {
     catch (dbError) {
         const errorResponse = dbError.code === 'ValidationException' && dbError.message.includes('reserved keyword') ?
             DYNAMODB_EXECUTION_ERROR : RESERVED_RESPONSE;
+            console.error("500 " + errorResponse)
         return { statusCode: 500, body: errorResponse };
     }
     return { statusCode: 201, body: JSON.stringify({ id: item[PRIMARY_KEY] }) };
diff --git a/deploy/lambda/src/delete-one.js b/deploy/lambda/src/delete-one.js
index 38d898422a6f5df9bc57deb40e04633c795de88a..1e3e5d89af0999900b96c30233c805b29980312a 100644
--- a/deploy/lambda/src/delete-one.js
+++ b/deploy/lambda/src/delete-one.js
@@ -3,8 +3,13 @@ const db = new AWS.DynamoDB.DocumentClient();
 const TABLE_NAME = process.env.TABLE_NAME || '';
 const PRIMARY_KEY = process.env.TABLE_KEY || '';
 exports.handler = async (event = {}) => {
+    if (!event.queryStringParameters) {
+        console.error("400 invalid request, you are missing the path parameter id")
+        return { statusCode: 400, body: `Error: You are missing the path parameter id` };
+    }
     const requestedItemId = event.queryStringParameters.id;
     if (!requestedItemId) {
+        console.error("400 invalid request, you are missing the path parameter id")
         return { statusCode: 400, body: `Error: You are missing the path parameter id` };
     }
     const params = {
@@ -22,6 +27,7 @@ exports.handler = async (event = {}) => {
         return { statusCode: 200, body: '' };
     }
     catch (dbError) {
+        console.error("500 "+JSON.stringify(dbError))
         return { statusCode: 500, body: JSON.stringify(dbError) };
     }
 };
\ No newline at end of file
diff --git a/deploy/lambda/src/get-one.js b/deploy/lambda/src/get-one.js
index c8fa4e487284665ffad67c2436b608ca34dcba7c..151028178370cc702bdd29c5571c8855adb27224 100644
--- a/deploy/lambda/src/get-one.js
+++ b/deploy/lambda/src/get-one.js
@@ -3,8 +3,13 @@ const db = new AWS.DynamoDB.DocumentClient();
 const TABLE_NAME = process.env.TABLE_NAME || '';
 const PRIMARY_KEY = process.env.TABLE_KEY || '';
 exports.handler = async (event = {}) => {
+    if (!event.queryStringParameters) {
+        console.error("400 invalid request, you are missing the path parameter id")
+        return { statusCode: 400, body: `Error: You are missing the path parameter id` };
+    }
     const requestedItemId = event.queryStringParameters.id;
     if (!requestedItemId) {
+        console.error("400 invalid request, you are missing the path parameter id")
         return { statusCode: 400, body: `Error: You are missing the path parameter id` };
     }
     const params = {
@@ -19,9 +24,12 @@ exports.handler = async (event = {}) => {
     })
     try {
         const response = await db.get(params).promise();
+        console.log({response:{ statusCode: 200, body: JSON.stringify(response.Item) }
+        })
         return { statusCode: 200, body: JSON.stringify(response.Item) };
     }
     catch (dbError) {
+        console.error("500 "+JSON.stringify(dbError))
         return { statusCode: 500, body: JSON.stringify(dbError) };
     }
 };
\ No newline at end of file
diff --git a/deploy/lambda/src/update-one.js b/deploy/lambda/src/update-one.js
index 943c4685a139e3d275ba263a96fc8e3e247d5d9f..3c1cbf26810eaeab193c5e6a98bafa4d9210e0ab 100644
--- a/deploy/lambda/src/update-one.js
+++ b/deploy/lambda/src/update-one.js
@@ -5,15 +5,22 @@ const PRIMARY_KEY = process.env.TABLE_KEY || '';
 const RESERVED_RESPONSE = `Error: You're using AWS reserved keywords as attributes`, DYNAMODB_EXECUTION_ERROR = `Error: Execution update, caused a Dynamodb error, please take a look at your CloudWatch Logs.`;
 exports.handler = async (event = {}) => {
     if (!event.body) {
+        console.error("400 invalid request, you are missing the parameter body")
         return { statusCode: 400, body: 'invalid request, you are missing the parameter body' };
     }
+    if (!event.queryStringParameters) {
+        console.error("400 invalid request, you are missing the path parameter id")
+        return { statusCode: 400, body: `Error: You are missing the path parameter id` };
+    }
     const editedItemId = event.queryStringParameters.id;
     if (!editedItemId) {
+        console.error("400 invalid request, you are missing the path parameter id")
         return { statusCode: 400, body: 'invalid request, you are missing the path parameter id' };
     }
     const editedItem = typeof event.body == 'object' ? event.body : JSON.parse(event.body);
     const editedItemProperties = Object.keys(editedItem);
     if (!editedItem || editedItemProperties.length < 1) {
+        console.error("400 invalid request, you are missing the parameter body")
         return { statusCode: 400, body: 'invalid request, no arguments provided' };
     }
     const firstProperty = editedItemProperties.splice(0, 1);
@@ -42,6 +49,7 @@ exports.handler = async (event = {}) => {
     catch (dbError) {
         const errorResponse = dbError.code === 'ValidationException' && dbError.message.includes('reserved keyword') ?
             DYNAMODB_EXECUTION_ERROR : RESERVED_RESPONSE;
+            console.error("500 "+errorResponse)
         return { statusCode: 500, body: errorResponse };
     }
 };
\ No newline at end of file