diff --git a/packages/cactus-common/src/main/typescript/checks.ts b/packages/cactus-common/src/main/typescript/checks.ts
index 9c3c66e93b..b14f35d06d 100644
--- a/packages/cactus-common/src/main/typescript/checks.ts
+++ b/packages/cactus-common/src/main/typescript/checks.ts
@@ -18,4 +18,23 @@ export class Checks {
       throw new CodedError(message, code);
     }
   }
+
+  /**
+   * Verifies that a string is indeed not a blank string.
+   * Blank string can be one that only has whitespace characters for example.
+   *
+   * @param value The value that will be asserted for being a non-blank string.
+   * @param subject The error message if `value` is a blank string.
+   * @param code The code of the error if `checkResult is falsy.
+   */
+  public static nonBlankString(
+    value: any,
+    subject: string = "variable",
+    code: string = "-1"
+  ): void {
+    if (typeof value !== "string" || value.trim().length === 0) {
+      const message = `"${subject}" is a blank string. Need non-blank.`;
+      throw new CodedError(message, code);
+    }
+  }
 }
diff --git a/packages/cactus-common/src/test/typescript/unit/checks.test.ts b/packages/cactus-common/src/test/typescript/unit/checks.test.ts
new file mode 100644
index 0000000000..b52807194f
--- /dev/null
+++ b/packages/cactus-common/src/test/typescript/unit/checks.test.ts
@@ -0,0 +1,27 @@
+import test, { Test } from "tape";
+
+import { v4 as uuidv4 } from "uuid";
+
+import { Checks } from "../../../main/typescript";
+
+test("Checks", (t: Test) => {
+  test("Checks#nonBlankString()", (t2: Test) => {
+    const subject = uuidv4();
+    const pattern = new RegExp(`${subject}`);
+
+    t2.throws(() => Checks.nonBlankString("", subject), pattern);
+    t2.throws(() => Checks.nonBlankString(" ", subject), pattern);
+    t2.throws(() => Checks.nonBlankString("\n", subject), pattern);
+    t2.throws(() => Checks.nonBlankString("\t", subject), pattern);
+    t2.throws(() => Checks.nonBlankString("\t\n", subject), pattern);
+    t2.throws(() => Checks.nonBlankString("\n\r", subject), pattern);
+
+    t2.doesNotThrow(() => Checks.nonBlankString("-"));
+    t2.doesNotThrow(() => Checks.nonBlankString(" a "));
+    t2.doesNotThrow(() => Checks.nonBlankString("\na\t"));
+
+    t2.end();
+  });
+
+  t.end();
+});