diff --git a/uniffi/src/anoncreds.udl b/uniffi/src/anoncreds.udl
index 0d0d18a5..5ee0b6e6 100644
--- a/uniffi/src/anoncreds.udl
+++ b/uniffi/src/anoncreds.udl
@@ -45,6 +45,10 @@ interface LinkSecret {
 
 interface Nonce {
     constructor();
+    [Throws=AnoncredsError, Name=new_from_value]
+    constructor(string value_string);
+    [Throws=AnoncredsError]
+    string get_value();
 };
 
 dictionary CredentialDefinitionConfig {
@@ -96,6 +100,8 @@ interface CredentialOffer {
 };
 
 interface CredentialRequest {
+    [Throws=AnoncredsError]
+    constructor(string json_string);
     string get_blinded_credential_secrets_json();
     string get_blinded_credential_secrets_correctness_proof_json();
     Nonce get_nonce();
diff --git a/uniffi/src/types/cred_req.rs b/uniffi/src/types/cred_req.rs
index 632c162f..03010e72 100644
--- a/uniffi/src/types/cred_req.rs
+++ b/uniffi/src/types/cred_req.rs
@@ -12,6 +12,12 @@ pub struct CredentialRequest {
 }
 
 impl CredentialRequest {
+    pub fn new(jsonString: String) -> Result<Self, AnoncredsError> {
+        let core_def: AnoncredsCredentialRequest =
+            serde_json::from_str(&jsonString).map_err(|_| AnoncredsError::ConversionError)?;
+        return Ok(CredentialRequest { core: core_def });
+    }
+
     pub fn get_blinded_credential_secrets_json(&self) -> String {
         serde_json::to_string(&self.core.blinded_ms).unwrap()
     }
@@ -35,6 +41,18 @@ pub struct CredentialRequestMetadata {
     pub link_secret_name: String,
 }
 
+// impl CredentialRequestMetadata {
+//     pub fn new(jsonString: String) -> Result<Self, AnoncredsError> {
+//         let core_def: AnoncredsCredentialRequest =
+//             serde_json::from_str(&jsonString).map_err(|_| AnoncredsError::ConversionError)?;
+//         return Ok(CredentialRequestMetadata { core: core_def });
+//     }
+
+//     pub fn get_json(&self) -> Result<String, AnoncredsError> {
+//         serde_json::to_string(&self.core).map_err(|_| AnoncredsError::ConversionError)
+//     }
+// }
+
 impl Into<AnoncredsCredentialRequestMetadata> for CredentialRequestMetadata {
     fn into(self) -> AnoncredsCredentialRequestMetadata {
         let link_secret_core: ursa::cl::CredentialSecretsBlindingFactors = serde_json::from_str(&self.link_secret_blinding_data).unwrap();
diff --git a/uniffi/src/types/nonce.rs b/uniffi/src/types/nonce.rs
index e8f8e7d3..8477264b 100644
--- a/uniffi/src/types/nonce.rs
+++ b/uniffi/src/types/nonce.rs
@@ -1,17 +1,50 @@
 use crate::types::error::AnoncredsError;
-use anoncreds_core::data_types::nonce::{Nonce as AnoncredsNounce};
+use anoncreds_core::data_types::nonce::Nonce as AnoncredsNonce;
 use std::convert::TryFrom;
 use std::convert::TryInto;
 use std::sync::Arc;
 
 pub struct Nonce {
-    pub anoncreds_nonce: AnoncredsNounce,
+    pub anoncreds_nonce: AnoncredsNonce,
 }
 
 impl Nonce {
     pub fn new() -> Self {
-        let nonce = AnoncredsNounce::new().unwrap();
-        return Nonce { anoncreds_nonce: nonce }
+        let nonce = AnoncredsNonce::new().unwrap();
+        return Nonce {
+            anoncreds_nonce: nonce,
+        };
+    }
+
+    pub fn new_from_value(value_string: String) -> Result<Self, AnoncredsError> {
+        let nonce = AnoncredsNonce::try_from(value_string.as_str())
+            .map_err(|_| AnoncredsError::ConversionError)?;
+        return Ok(Nonce {
+            anoncreds_nonce: nonce,
+        });
+    }
+
+    pub fn get_value(&self) -> Result<String, AnoncredsError> {
+        let clone = self.clone();
+        return Ok(clone.into());
+    }
+}
+
+impl From<AnoncredsNonce> for Nonce {
+    fn from(acr: AnoncredsNonce) -> Self {
+        return Nonce {
+            anoncreds_nonce: acr,
+        };
+    }
+}
+
+impl TryFrom<&Nonce> for AnoncredsNonce {
+    type Error = AnoncredsError;
+
+    fn try_from(acr: &Nonce) -> Result<Self, Self::Error> {
+        acr.anoncreds_nonce
+            .try_clone()
+            .map_err(|_| AnoncredsError::ConversionError)
     }
 }
 
@@ -25,14 +58,18 @@ impl TryFrom<&str> for Nonce {
     type Error = AnoncredsError;
 
     fn try_from(value: &str) -> Result<Self, Self::Error> {
-        let nonce = AnoncredsNounce::try_from(value).map_err(|_| AnoncredsError::ConversionError)?;
-        return Ok(Nonce { anoncreds_nonce: nonce })
+        let nonce = AnoncredsNonce::try_from(value).map_err(|_| AnoncredsError::ConversionError)?;
+        return Ok(Nonce {
+            anoncreds_nonce: nonce,
+        });
     }
 }
 
 impl Clone for Nonce {
     fn clone(&self) -> Self {
         let original = self.anoncreds_nonce.try_clone().unwrap();
-        return Nonce { anoncreds_nonce: original }
+        return Nonce {
+            anoncreds_nonce: original,
+        };
     }
-}
\ No newline at end of file
+}