Add hangling errors

README.md

@@ -2,7 +2,7 @@
 
 **Requierement**:
 ```
-pip3 install --pre gql
+pip3 install -r requirements.txt
 chmod u+x pay.py
 ```
 

pay.py

@@ -1,10 +1,9 @@
 #!/usr/bin/env python3
 
-import sys, os.path
+import sys, os.path, json
 from shutil import copyfile
 if not os.path.isfile("userEnv.py"):
   copyfile("userEnv.py.template", "userEnv.py")
-
 from userEnv import issuer, dunikey, node
 from natools import fmt, sign, get_privkey
 from gql import gql, Client
@@ -23,7 +22,6 @@ amount = int(sys.argv[2])
 comment = sys.argv[3]
 
 ## GraphQL queries
-
 # Build the TX Document
 queryBuild = gql(
     """
@@ -44,14 +42,20 @@ paramsBuild = {
 }
 
 # Send TX document
-txDoc = str(client.execute(queryBuild, variable_values=paramsBuild))[13:-3].replace('\\n','\n').encode()
+try:
+  txDoc = str(client.execute(queryBuild, variable_values=paramsBuild))[13:-3].replace('\\n','\n').encode()
+  print("Document généré avec succès.")
+except Exception as e:
+  print("Echec d'obtention du document de transaction:" + str(e))
+  sys.exit(1)
+  
+
 
 # Sign TX document
-
 signature = fmt["64"](sign(txDoc, get_privkey(dunikey, "pubsec"))[:-len(txDoc)])
 signedDoc = txDoc.decode() + signature.decode()
 
-print(signedDoc)
+#print(signedDoc) # For debug
 
 querySign = gql(
     """
@@ -70,8 +74,13 @@ paramsSign = {
 }
 
 # Send TX Signed document
-result = client.execute(querySign, variable_values=paramsSign)
+try:
+  sentTX = client.execute(querySign, variable_values=paramsSign)
+  print("Transaction effectué avec succès !")
+except Exception as e:
+  print("Echec de la transaction:" + str(e))
+  sys.exit(1)
+
+#print(sentTX) #For debug
 
-# print the result
-print(result)
 

requirements.txt

@@ -0,0 +1,2 @@
+gql
+duniterpy