From e51971b46f579d185fc7c512e580c057cabf5114 Mon Sep 17 00:00:00 2001
From: skyflow-puneet <puneet.verma@skyflow.com>
Date: Thu, 27 Oct 2022 10:10:50 +0530
Subject: [PATCH] [SDK-713] Update missing feature

---
 README.md | 44 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 41 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 98f9505..534d8a9 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
-# Description
+# Skyflow-python
 
 ---
-
+## Description
 This Python SDK is designed to help developers easily implement Skyflow into their python backend.
 
 
@@ -50,7 +50,7 @@ The [Service Account](https://github.com/skyflowapi/skyflow-python/tree/main/sky
 
 The `generate_bearer_token(filepath)` function takes the credentials file path for token generation, alternatively, you can also send the entire credentials as string, by using `generate_bearer_token_from_creds(credentials)`
 
-[Example](https://github.com/skyflowapi/skyflow-python/blob/main/samples/sa_token_sample.py):
+[Example using filepath](https://github.com/skyflowapi/skyflow-python/blob/main/samples/sa_token_sample.py):
 
 ```python
 from skyflow.errors import SkyflowError
@@ -76,6 +76,42 @@ except SkyflowError as e:
 
 ```
 
+[Example using credentials string](https://github.com/skyflowapi/skyflow-python/blob/main/samples/generate_bearer_token_from_creds_sample.py):
+
+```python
+from skyflow.errors import SkyflowError
+from skyflow.service_account import generate_bearer_token_from_creds, is_expired
+
+# cache token for reuse
+bearerToken = ''
+tokenType = ''
+def token_provider():
+    global bearerToken
+    global tokenType
+    # As an example
+    credentials = {
+        "clientID": "<YOUR_clientID>",
+        "clientName": "<YOUR_clientName>",
+        "keyID": "<YOUR_keyID>",
+        "tokenURI": '<YOUR_tokenURI>',
+        "privateKey": "<YOUR_PEM_privateKey>"
+    }
+    jsonString = json.dumps(credentials)
+    if is_expired(bearerToken):
+        bearerToken, tokenType = generate_bearer_token_from_creds(
+            credentials=jsonString)
+
+    return bearerToken
+
+try:
+    accessToken, tokenType = token_provider()
+    print("Access Token:", accessToken)
+    print("Type of token:", tokenType)
+except SkyflowError as e:
+    print(e)
+
+```
+
 ## Vault APIs
 
 The [Vault](https://github.com/skyflowapi/skyflow-python/tree/main/skyflow/vault) python module is used to perform operations on the vault such as inserting records, detokenizing tokens, retrieving tokens for a skyflow_id and to invoke a connection.
@@ -91,6 +127,7 @@ bearerToken = ''
 
 # User defined function to provide access token to the vault apis
 def token_provider():
+    global bearerToken
     if is_expired(bearerToken):
         return bearerToken
     bearerToken, _ = generate_bearer_token('<YOUR_CREDENTIALS_FILE_PATH>')
@@ -342,6 +379,7 @@ from skyflow.vault import ConnectionConfig, Configuration, RequestMethod
 
 bearerToken = ''
 def token_provider():
+    global bearerToken
     if is_expired(bearerToken):
         return bearerToken
     bearerToken, _ = generate_bearer_token('<YOUR_CREDENTIALS_FILE_PATH>')