diff --git a/front/API.ts b/front/API.ts
index a12ea98..bcd2e8c 100644
--- a/front/API.ts
+++ b/front/API.ts
@@ -61,41 +61,49 @@ const baseAPIUrl =
 		? "/api"
 		: Constants.manifest?.extra?.apiUrl;
 
-const requestGet = async (url: string) => {
-	try {
-		const response = await fetch(url, {
+export default class API {
+
+	/**
+	 * 
+	 * @param url 
+	 * @returns 
+	 */
+	public static async getRequest(url: string) {
+		console.log('Fetching on', url)
+		const res = await fetch(url, {
 			method: 'GET',
 			headers: {
-				Accept: 'application/json',
-				'Content-Type': 'application/json'
+				'Content-Type': 'application/json',
 			}
-		});
-		const json = await response.json();
-		return json;
-	} catch (error) {
-		console.error(error);
+		})
+		const data = await res.json()
+		if (data.error)
+			throw data.message;
+		return data;
 	}
-}
 
-const requestPost = async (url: string, params: any[]) => {
-	try {
-		const response = await fetch(url, {
-			method: 'POST',
+	/**
+	 * 
+	 * @param url 
+	 * @param body 
+	 * @returns 
+	 */
+	public static async postRequest(url: string, body: {}) {
+		console.log('Fetching on', url)
+		const res = await fetch(url, {
+			method: 'PATCH',
 			headers: {
-				Accept: 'application/json',
-				'Content-Type': 'application/json'
+				'Content-Type': 'application/json',
 			},
-			body : JSON.stringify(params),
-		});
-		const json = await response.json();
-		return json;
-	} catch (error) {
-		console.error(error);
+			body: JSON.stringify(body)
+		})
+		const data = await res.json()
+		if (data.error)
+			throw data.message;
+		return data;
 	}
-}
 
-export default class API {
-	private static async fetch(params: FetchParams) {
+	public static async fetch(params: FetchParams) {
 		const jwtToken = store.getState().user.accessToken;
 		const header = {
 			"Content-Type": "application/json",
@@ -163,6 +171,26 @@ export default class API {
 			password: registrationInput.password,
 		});
 	}
+	/**
+	 * 
+	 * @param url 
+	 * @param body 
+	 * @returns 
+	 */
+	public static async patchRequest(url: string, body: {}) {
+		console.log('Fetching on', url)
+		const res = await fetch(url, {
+			method: 'PATCH',
+			headers: {
+				'Content-Type': 'application/json',
+			},
+			body: JSON.stringify(body)
+		})
+		const data = await res.json()
+		if (data.error)
+			throw data.message;
+		return data;
+	}
 
 	/***
 	 * Retrieve information of the currently authentified user
@@ -458,12 +486,35 @@ export default class API {
 	 * @returns new user's credentials
 	 */
 
-	static async updateUserCredentials(dataKey: 'password' | 'email', value: any): Promise<string> {
-		let validDataKeys: string[] = ['password', 'email'];
+	static async updateUserCredentials(dataKey: 'password' | 'email', oldValue: string, newValue: string): Promise<string> {
 		return new Promise<string>((resolve, reject) => {
 			setTimeout(() => {
-				if (!validDataKeys.includes(dataKey))
-				return resolve('giga chad');
+				try {
+					if (dataKey == 'email') {
+						this.getRequest('http://localhost:3000/users/24').then((res) => {
+							console.table(res);
+							console.log(oldValue, newValue);
+							if (res.email === oldValue) {
+								this.patchRequest('http://localhost:3000/users/24', {'email': newValue}).finally(() => {
+									return resolve('email successfully changed');
+								});
+							} else return reject("wrong email");
+						});
+					} else if (dataKey == 'password') {
+						this.getRequest('http://localhost:3000/users/24').then((res) => {
+							console.table(res);
+							if (res.password == oldValue) {
+								this.patchRequest('http://localhost:3000/users/24', {'password': newValue}).finally(() => {
+									return resolve('password successfully changed');
+								});
+							} else return reject("wrong password");
+						});
+					}
+				} catch (error) {
+					console.error(error);
+					return reject("something went wrong: unable to update");
+				}
+				
 			}, 1000);
 		});
 	}
diff --git a/front/components/forms/changeEmailForm.tsx b/front/components/forms/changeEmailForm.tsx
index 6ffdf3f..d49c7c0 100644
--- a/front/components/forms/changeEmailForm.tsx
+++ b/front/components/forms/changeEmailForm.tsx
@@ -89,23 +89,23 @@ const ChangeEmailForm = ({ onSubmit }: ChangeEmailFormProps) => {
 				
 				<Button
 					style={{ marginTop: 10 }}
-					// isLoading={submittingForm}
-					// isDisabled={
-					// 	formData.newEmail.error !== null
-					// }
-					// onPress={async () => {
-					// 	setSubmittingForm(true);
-					// 	try {
-					// 		const resp = await onSubmit(
-					// 			formData.newEmail.value
-					// 		);
-					// 		toast.show({ description: resp });
-					// 	} catch (e) {
-					// 		toast.show({ description: e as string });
-					// 	} finally {
-					// 		setSubmittingForm(false);
-					// 	}
-					// }}
+					isLoading={submittingForm}
+					isDisabled={
+						formData.newEmail.error !== null
+					}
+					onPress={async () => {
+						setSubmittingForm(true);
+						try {
+							const resp = await onSubmit(formData.oldEmail.value,
+								formData.newEmail.value
+							);
+							toast.show({ description: resp });
+						} catch (e) {
+							toast.show({ description: e as string });
+						} finally {
+							setSubmittingForm(false);
+						}
+					}}
 				>
 					{translate("submitBtn")}
 				</Button>
diff --git a/front/views/settings/SettingsView.tsx b/front/views/settings/SettingsView.tsx
index 8d49dd2..5679dd1 100644
--- a/front/views/settings/SettingsView.tsx
+++ b/front/views/settings/SettingsView.tsx
@@ -13,9 +13,9 @@ import ChangeEmailForm from '../../components/forms/changeEmailForm';
 
 const SettingsStack = createNativeStackNavigator();
 
-const handleChangeEmail = async (newEmail: string): Promise<string> => {
+const handleChangeEmail = async (oldEmail: string, newEmail: string): Promise<string> => {
     try {
-        let response = await API.updateUserCredentials("email", newEmail);
+        let response = await API.updateUserCredentials("email", oldEmail, newEmail);
         return response as string;
     } catch (error) {
         return ("error: " + error);
@@ -24,7 +24,7 @@ const handleChangeEmail = async (newEmail: string): Promise<string> => {
 
 const handleChangePassword = async (oldPassword: string, newPassword: string): Promise<string> => {
     try {
-        let response = await API.updateUserCredentials("password", newPassword);
+        let response = await API.updateUserCredentials("password", oldPassword, newPassword);
         return response as string;
     } catch (error) {
         return ("error: " + error);
@@ -81,7 +81,7 @@ const ChangeEmailView = ({navigation}) => {
     return (
         <Center style={{ flex: 1}}>
             <Heading paddingBottom={'2%'}>{translate('changeEmail')}</Heading>
-            <ChangeEmailForm onSubmit={(oldEmail, newEmail) => handleChangeEmail(newEmail)}/>
+            <ChangeEmailForm onSubmit={(oldEmail, newEmail) => handleChangeEmail(oldEmail, newEmail)}/>
             <Button marginTop={'2%'} variant='outline' onPress={() => navigation.navigate('Settings')}>Back</Button>
         </Center>
     )