diff --git a/api/v1/checks.go b/api/v1/checks.go
index 73eb43bea..aab4eb1a0 100644
--- a/api/v1/checks.go
+++ b/api/v1/checks.go
@@ -56,8 +56,9 @@ func (c Check) GetLabels() map[string]string {
 }
 
 type Oauth2Config struct {
-	Scopes   []string `json:"scope,omitempty" yaml:"scope,omitempty"`
-	TokenURL string   `json:"tokenURL,omitempty" yaml:"tokenURL,omitempty"`
+	Scopes   []string          `json:"scope,omitempty" yaml:"scope,omitempty"`
+	TokenURL string            `json:"tokenURL,omitempty" yaml:"tokenURL,omitempty"`
+	Params   map[string]string `json:"params,omitempty" yaml:"params,omitempty"`
 }
 
 type HTTPCheck struct {
diff --git a/api/v1/zz_generated.deepcopy.go b/api/v1/zz_generated.deepcopy.go
index b598aa2dd..b3e2c2bd0 100644
--- a/api/v1/zz_generated.deepcopy.go
+++ b/api/v1/zz_generated.deepcopy.go
@@ -2398,6 +2398,13 @@ func (in *Oauth2Config) DeepCopyInto(out *Oauth2Config) {
 		*out = make([]string, len(*in))
 		copy(*out, *in)
 	}
+	if in.Params != nil {
+		in, out := &in.Params, &out.Params
+		*out = make(map[string]string, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
 }
 
 // DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Oauth2Config.
diff --git a/checks/folder.go b/checks/folder.go
index b19759f1c..f1f0ae7af 100644
--- a/checks/folder.go
+++ b/checks/folder.go
@@ -89,10 +89,11 @@ func checkLocalFolder(ctx *context.Context, check v1.FolderCheck) pkg.Results {
 	var results pkg.Results
 	results = append(results, result)
 	folders, err := getLocalFolderCheck(check.Path, check.Filter)
+	result.AddDetails(folders)
+
 	if err != nil {
 		return results.ErrorMessage(err)
 	}
-	result.AddDetails(folders)
 
 	if test := folders.Test(check.FolderTest); test != "" {
 		return results.Failf(test)
@@ -100,23 +101,31 @@ func checkLocalFolder(ctx *context.Context, check v1.FolderCheck) pkg.Results {
 	return results
 }
 
-func getLocalFolderCheck(path string, filter v1.FolderFilter) (*FolderCheck, error) {
+func getLocalFolderCheck(path string, filter v1.FolderFilter) (FolderCheck, error) {
 	result := FolderCheck{}
 	_filter, err := filter.New()
 	if err != nil {
-		return nil, err
+		return result, err
+	}
+	if dir, err := os.Stat(path); err != nil {
+		if os.IsNotExist(err) {
+			return result, nil
+		}
+		return result, err
+	} else if !dir.IsDir() {
+		return result, fmt.Errorf("%s is not a directory", path)
 	}
 	files, err := os.ReadDir(path)
 	if err != nil {
-		return nil, err
+		return result, err
 	}
 	if len(files) == 0 {
 		// directory is empty. returning duration of directory
 		info, err := os.Stat(path)
 		if err != nil {
-			return nil, err
+			return result, err
 		}
-		return &FolderCheck{
+		return FolderCheck{
 			Oldest:        newFile(info),
 			Newest:        newFile(info),
 			AvailableSize: SizeNotSupported,
@@ -126,7 +135,7 @@ func getLocalFolderCheck(path string, filter v1.FolderFilter) (*FolderCheck, err
 	for _, file := range files {
 		info, err := file.Info()
 		if err != nil {
-			return nil, err
+			return result, err
 		}
 		if file.IsDir() || !_filter.Filter(info) {
 			continue
@@ -134,7 +143,7 @@ func getLocalFolderCheck(path string, filter v1.FolderFilter) (*FolderCheck, err
 
 		result.Append(info)
 	}
-	return &result, err
+	return result, err
 }
 
 func getGenericFolderCheck(fs Filesystem, dir string, filter v1.FolderFilter) (*FolderCheck, error) {
diff --git a/checks/folder_check.go b/checks/folder_check.go
index 4b3834ec8..3090ac5c1 100644
--- a/checks/folder_check.go
+++ b/checks/folder_check.go
@@ -21,7 +21,7 @@ type FolderCheck struct {
 	MaxSize       *File  `json:"largest,omitempty"`
 	TotalSize     int64  `json:"size,omitempty"`
 	AvailableSize int64  `json:"availableSize,omitempty"`
-	Files         []File `json:"files,omitempty"`
+	Files         []File `json:"files"`
 }
 
 type File struct {
diff --git a/checks/http.go b/checks/http.go
index 9a79db811..14d28369d 100644
--- a/checks/http.go
+++ b/checks/http.go
@@ -86,6 +86,7 @@ func (c *HTTPChecker) generateHTTPRequest(ctx *context.Context, check v1.HTTPChe
 			ClientSecret: connection.Password,
 			TokenURL:     check.Oauth2.TokenURL,
 			Scopes:       check.Oauth2.Scopes,
+			Params:       check.Oauth2.Params,
 		})
 	}
 
diff --git a/checks/sql.go b/checks/sql.go
index dfa4c648a..fbfbb8c11 100644
--- a/checks/sql.go
+++ b/checks/sql.go
@@ -19,7 +19,7 @@ type SQLChecker interface {
 }
 
 type SQLDetails struct {
-	Rows  []map[string]interface{} `json:"rows,omitempty"`
+	Rows  []map[string]interface{} `json:"rows"`
 	Count int                      `json:"count,omitempty"`
 }
 
@@ -28,23 +28,24 @@ type SQLDetails struct {
 // Connects to a db using the specified `driver` and `connectionstring`
 // Performs the test query given in `query`.
 // Gives the single row test query result as result.
-func querySQL(driver string, connection string, query string) (*SQLDetails, error) {
+func querySQL(driver string, connection string, query string) (SQLDetails, error) {
+	result := SQLDetails{}
 	db, err := sql.Open(driver, connection)
 	if err != nil {
-		return nil, fmt.Errorf("failed to connect to db: %w", err)
+		return result, fmt.Errorf("failed to connect to db: %w", err)
 	}
 	defer db.Close()
 
 	rows, err := db.Query(query)
-	result := SQLDetails{}
+
 	if err != nil || rows.Err() != nil {
-		return nil, fmt.Errorf("failed to query db: %w", err)
+		return result, fmt.Errorf("failed to query db: %w", err)
 	}
 	defer rows.Close()
 
 	columns, err := rows.Columns()
 	if err != nil {
-		return nil, fmt.Errorf("failed to get columns: %w", err)
+		return result, fmt.Errorf("failed to get columns: %w", err)
 	}
 
 	for rows.Next() {
@@ -54,7 +55,7 @@ func querySQL(driver string, connection string, query string) (*SQLDetails, erro
 			rowValues[i] = &s
 		}
 		if err := rows.Scan(rowValues...); err != nil {
-			return nil, err
+			return result, err
 		}
 
 		var row = make(map[string]interface{})
@@ -71,7 +72,7 @@ func querySQL(driver string, connection string, query string) (*SQLDetails, erro
 	}
 
 	result.Count = len(result.Rows)
-	return &result, nil
+	return result, nil
 }
 
 // CheckSQL : Attempts to connect to a DB using the specified
@@ -110,11 +111,12 @@ func CheckSQL(ctx *context.Context, checker SQLChecker) pkg.Results { // nolint:
 	}
 
 	details, err := querySQL(checker.GetDriver(), connection.URL, query)
+	result.AddDetails(details)
+
 	if err != nil {
 		return results.ErrorMessage(err)
 	}
 
-	result.AddDetails(details)
 	if details.Count < check.Result {
 		return results.Failf("Query returned %d rows, expected %d", details.Count, check.Result)
 	}
diff --git a/config/deploy/crd.yaml b/config/deploy/crd.yaml
index 626843271..3ec8f2651 100644
--- a/config/deploy/crd.yaml
+++ b/config/deploy/crd.yaml
@@ -3292,6 +3292,10 @@ spec:
                       oauth2:
                         description: Oauth2 Configuration. The client ID & Client secret should go to username & password respectively.
                         properties:
+                          params:
+                            additionalProperties:
+                              type: string
+                            type: object
                           scope:
                             items:
                               type: string
diff --git a/config/deploy/manifests.yaml b/config/deploy/manifests.yaml
index a9ac1413f..5f0cfa299 100644
--- a/config/deploy/manifests.yaml
+++ b/config/deploy/manifests.yaml
@@ -3292,6 +3292,10 @@ spec:
                       oauth2:
                         description: Oauth2 Configuration. The client ID & Client secret should go to username & password respectively.
                         properties:
+                          params:
+                            additionalProperties:
+                              type: string
+                            type: object
                           scope:
                             items:
                               type: string
diff --git a/config/schemas/canary.schema.json b/config/schemas/canary.schema.json
index 88aaacbcf..deb37dc30 100644
--- a/config/schemas/canary.schema.json
+++ b/config/schemas/canary.schema.json
@@ -2416,6 +2416,14 @@
         },
         "tokenURL": {
           "type": "string"
+        },
+        "params": {
+          "patternProperties": {
+            ".*": {
+              "type": "string"
+            }
+          },
+          "type": "object"
         }
       },
       "additionalProperties": false,
diff --git a/config/schemas/component.schema.json b/config/schemas/component.schema.json
index d9a2b74f6..d44b9e67d 100644
--- a/config/schemas/component.schema.json
+++ b/config/schemas/component.schema.json
@@ -2678,6 +2678,14 @@
         },
         "tokenURL": {
           "type": "string"
+        },
+        "params": {
+          "patternProperties": {
+            ".*": {
+              "type": "string"
+            }
+          },
+          "type": "object"
         }
       },
       "additionalProperties": false,
diff --git a/config/schemas/health_http.schema.json b/config/schemas/health_http.schema.json
index 6d4ad7988..aa5eae170 100644
--- a/config/schemas/health_http.schema.json
+++ b/config/schemas/health_http.schema.json
@@ -226,6 +226,14 @@
         },
         "tokenURL": {
           "type": "string"
+        },
+        "params": {
+          "patternProperties": {
+            ".*": {
+              "type": "string"
+            }
+          },
+          "type": "object"
         }
       },
       "additionalProperties": false,
diff --git a/config/schemas/topology.schema.json b/config/schemas/topology.schema.json
index 142d68f32..e625243b0 100644
--- a/config/schemas/topology.schema.json
+++ b/config/schemas/topology.schema.json
@@ -2648,6 +2648,14 @@
         },
         "tokenURL": {
           "type": "string"
+        },
+        "params": {
+          "patternProperties": {
+            ".*": {
+              "type": "string"
+            }
+          },
+          "type": "object"
         }
       },
       "additionalProperties": false,
diff --git a/fixtures/datasources/folder_pass.yaml b/fixtures/datasources/folder_pass.yaml
index 5e7ef73b8..ef824518d 100644
--- a/fixtures/datasources/folder_pass.yaml
+++ b/fixtures/datasources/folder_pass.yaml
@@ -3,7 +3,7 @@ kind: Canary
 metadata:
   name: folder-pass
 spec:
-  interval: 10
+  interval: 300
   folder:
     - path: /etc/
       name: Check for updated /etc files
@@ -32,3 +32,15 @@ spec:
         - name: new_files
           value: results.?files.orValue([]).size()
           type: counter
+---
+apiVersion: canaries.flanksource.com/v1
+kind: Canary
+metadata:
+  name: folder-pass-empty
+spec:
+  interval: 300
+  folder:
+    - name: folder-nil-handling
+      path: /some/folder/that/does/not/exist
+      test:
+        expr: results.files.size() == 0